Frequently Asked Questions

Answer: It's absolutely necessary! If you want your roof to last longer, if you want to preserve the integrity of your roof shingles and avoid moisture leakage in your roof spaces, we recommend that you clean the moss off your roof as soon as possible. Moss on your roof is tantamount to a leak in your car engine, and so if you want to avoid hefty roof repairs before your roof's expected expiration, it's best to order moss removal right away.

Answer: Absolutely! If you want to get the most out of your roof's lifespan, which could be up to 50 years or more, then you should definitely keep your roof clean. Whether or not there is a little or a lot of moss on your roof, that moss will retain moisture and damage your shingles over time.

Answer: For residential roofs, depending on how much moss, lichen, pollen, bird poop, debris or other unwanted substance is on the shingles or other roofing material, the cost of roof cleaning service can vary from $300 to $1,000, and sometimes when there is a lot of moss up to $1,500, although $650 is the average. If you want to save money on your roof cleaning service, we recommend that you make an order before the moss has time to grow extensively across your roof, because the cost is determined by the dimensions of the roof and the labor involved. If there is no moss at all, which is sometimes the case when people need roof cleaning service, then the cost could be as low as $300 to quickly dispose of debris, remove stains, and soft-wash the roof in a few hours. Commercial roof cleaning, which tends to be larger jobs than residential ones and therefore require more time and labor to finish, vary from $2,000 to $4,500 in cost.

Answer: It's safe to use a pressure washer to clean mildew and grime off the vinyl siding of your home, so long as you use a low pressure. A higher pressure may cause damage to your vinyl siding.

Answer: How often you should clean your roof depends on whether or not your previously applied a moss prevention formula (zinc) to your roof shingles. We recommend that you get your roof cleaned once per year, if you wish to preserve your roof's integrity and expand its lifespan. However, if we were to apply our moss prevention formula, you only need to get your roof cleaned every other year. 

Answer: A driveway that is moss-free will take a lot quicker to pressure wash compared to a driveway that is covered in moss. A moss-free driveway might take as little as 45 minutes to pressure wash, while a moss-covered driveway may take up to 2 or 3 hours.

Answer: Although we provide moss removal service all year round, and although we recommend getting your roof moss removed and treated no matter what time of year it is, winter is the best time to order moss removal because this is when the moss on your roof will be retaining the most moisture and therefore causing the most damage.

Answer: Treating roof moss is separate from removing roof moss, for it entails applying a roof moss treatment solution (zinc) to your roof rather than manually scrubbing the moss away. To treat the moss on your roof with our highly-effective moss treatment solution in Seattle can cost anywhere from $75 to $200.

Answer: It's safe to scrape the moss off your roof shingles so long as you do it properly, only scraping the moss off the edges of the shingles where the moss is clinging and not across the whole top of the shingle which can cause damage.

Answer: Depending on how many gutters you have on your house, the cost of Seattle gutter cleaning can vary from $200 to $500.

Answer: We recommend that you clean your home gutters once per year. If you wait more than a year to clean your gutters, you may require additional gutter repair services which will cost more than a simple annual cleaning.

Answer: We recommend that you clean your driveway at least once per year, in order to preserve curb appeal and prevent moss from growing. Many homes in Seattle wait till the last moment to get their driveways cleaned, which results in a more extensive cleaning project and therefore a more expensive service.

Answer: Yes, we only use environmentally friendly roof cleaning solutions. When cleaning roofs and other moss-covered outdoor surfaces, we use a zinc-based moss killer formula that is eco friendly, with soft-wash roof shampoo method that doesn't damage your shingle granules. Our roof cleaning method is low pressure, eco friendly, and will NOT harm the plants and wildlife around your home or commercial property.

Answer: No. Not asphalt shingle roofs. Unlike lots of other larger companies, we do not use any pressurized or power washing on roofs given how important it is to save as many asphalt granules as possible. The method we use to remove moss and all other growth and debris from a roof is by hand, which is the most eco friendly way possible to clean a roof. It's difficult and time consuming work, but it's the safest way to preserve the integrity of your roof. If you pressure washing over hand removal, that's where we can so what you call "soft washing", not pressure washing.

High-pressure water on composition shingles is one of the most common ways a cheap roof cleaning turns into an early roof replacement. We only use higher-pressure water jets on materials that can handle it, like metal and concrete. For slate or composite that needs stain and grime removal, we keep a low-pressure soft-wash and roof-shampoo option available.

Answer: Cleaning a roof by hand, by use of push brooms, brushes, and leaf blowers, is the most eco friendly way to possibly clean a roof because it uses zero water and zero cleaning chemicals, and it's also a very effective way to clean roof shingles. This option, although it's the most environmentally friendly choice, will not prevent moss from growing back on its own. For moss prevention, our eco friendly zinc-based treatment is the best choice.

Depending on the severity of your roof moss infestation, applying a roof moss killing solution might not even be necessary because we can remove the moss on your roof entirely by hand. We have tackled some of the dirtiest, most moss-covered roofs in Seattle and surrounding areas one shingle at a time. Through our labor-intensive and gentle hand cleaning method, we have removed even the thickest moss coverage to make roofs look new again.

Answer: In certain cases low pressure roof cleaning, also known as a roof shampoo, roof washing, or soft-washing, is a great eco friendly option that we always keep available to any roofs that need it. We use minimal amounts of water at low pressure to remove grime and stains from rooftops without damaging shingle granules. This option is more recommended for rooftops with stronger roofing materials like slate or composite shingles because they're less prone to damage from water pressure. We only use higher pressure water jets on materials that can handle it like metal and concrete.

Soft-washing is not the same as pressure washing. Pressure washing blasts. Soft-washing uses low pressure and a gentle roof shampoo to lift stains, pollen film, and leftover organic residue after the moss has been taken off by hand.

Answer: Hand-brushing physically takes the moss, lichen, needles, and debris off the roof. Soft-washing is the low-pressure shampoo pass for stains and film. Most Seattle roofs that are actually mossy need the hand work first. A spray-only visit can kill moss and still leave a dead, ugly mat sitting on the shingles. Several of our clients have called us to remove the moss that a previous company simply sprayed and killed. Our practice is much safer and more effective. We clean by hand, then treat so it does not come right back.

Answer: Not the way we do it. Asphalt shingles fail early when somebody hits them with a pressure washer or scrapes the face of the shingle. We uphold the integrity of your roof shingles with our hand-brush moss removal method and roof moss prevention treatment. We are here to save granules, not send them into your gutters.

If your roof is already old, brittle, or missing a lot of granules, we will tell you that on the estimate visit. We would rather be honest than sell a cleaning that a failing roof cannot support.

Answer: We specialize in all types of roofs, from asphalt shingles and concrete to wood tiles, slate tiles, clay tiles, and metal. No matter how dirty your roof is, and no matter if it's a commercial or residential property, our licensed and insured roof moss removal experts in Seattle will get the job done with spectacular results.

The method changes with the material. Asphalt gets the gentle hand-brush approach. Cedar, clay, and some older roofs often do better with extra-soft tools and, when needed, a low-pressure shampoo. Metal and concrete can handle more water pressure when stains or growth demand it.

Answer: Yes, roof cleaning is done on the roof, and we know how to move on different materials. Some roofing materials are more fragile than others. Allowing debris and moss to sit there does much more damage than a careful crew walking the roof to maintain it. Steep pitches, wet moss, and two-story homes are exactly why this is not a weekend ladder project. If a section is too fragile or unsafe, we adjust the method rather than force it.

Answer: It depends on size, pitch, access, and how thick the moss is. A lighter cleaning can be done in a few hours. Heavier infestations take longer because the hand-brush method is labor-intensive on purpose, and that is the work other companies skip when they just spray. One of our clients noted a roof that needed cleaning and moss removal was finished in about three hours and looked like new. Bigger or steeper roofs take more of the day. We will give you a realistic time window when we estimate.

Answer: A proper Rojo roof cleaning includes inspection, hand removal of moss, lichen, needles, pollen film, bird droppings, and debris, and careful collection of that debris so it is not left in your yard or shoved into the gutters. When you want prevention, we then apply our zinc-based or metal-free moss treatment. Soft-wash and roof shampoo are used when stains and grime call for it on suitable materials.

Answer: Yes. We offer solar panel and skylight cleaning with roof cleaning service. Dirty glass cuts light to the panels and leaves streaks on skylights. Because we are already on the roof with the right mindset for delicate surfaces, it is the smart time to get those cleaned too. Mention panels or skylights when you book the estimate so we can include them.

Answer: Leaving moss untreated is the bigger warranty problem. Most roofing warranties expect you to maintain the roof and not let biological growth sit there. What does void warranties is high-pressure washing and harsh chemicals. We do not power-wash asphalt shingles and we do not use harsh chemicals or herbicides. If you have a written manufacturer warranty, keep it handy and we will stay inside methods that protect the roof rather than fight it.

Answer: You can ask for treatment only, but if you have substantial moss growth we strongly advise against it. Killing moss and leaving the dead mat in place still holds moisture, still looks bad, and still sheds into your gutters. Our clients who already paid a spray-and-forget company usually call us to come take the dead moss off. Do the job once, the right way.

Answer: Seattle and the Puget Sound give moss everything it wants: long rainy seasons, mild winters, shade from evergreens, and roofs that stay damp. Organic debris like needles, pollen, and leaves sits in the shingle tabs and becomes a sponge. North slopes and tree-covered lots grow moss first and thickest. That is why a roof you could ignore in a dry climate is a yearly maintenance item here.

Answer: Usually yes. Less sun means a slower dry-out after every rain. If your roof sits under cedars or firs, plan on staying closer to the annual cleaning schedule, and strongly consider the zinc prevention treatment so you can stretch visits to every other year.

Answer: Yes. Moss wedges under shingle edges, lifts them, and keeps the roof wet. Over time that leads to granule loss, curled tabs, rotting sheathing, stained ceilings, and leaks into the attic. Gutter clogs from moss debris send water up and under the eaves. Cleaning moss is cheaper than a roof repair every time.

Answer: Moss is the thick green cushion that holds water and pries at shingles. Algae is the slimy green or dark film. Lichen is the crusty, leaf-like growth that bonds tighter to the surface. Black streaks on shingles are commonly Gloeocapsa magma, a bacteria that feeds on the limestone filler in asphalt shingles. We remove moss, lichen, algae, pollen, bird droppings, and grime, which is the whole mix Seattle roofs collect, rather than treating only the green patches you can see from the driveway.

Answer: A brand-new roof should not need moss removal. If debris from trees is already collecting, a light cleaning and prevention treatment can be a smart early move. We will look at the material and age on the estimate visit and will not sell you an aggressive cleaning a new roof doesn't need.

Answer: Yes. Height, pitch, and access affect labor and therefore price, which is why we estimate in person. Multi-story homes, metal roofs, steep hillsides, and wooden decks around the house are jobs we already handle. If a section cannot be walked safely, we say so and use the method that still gets the moss off without wrecking the roof or the landscaping.

Answer: The infestation gets thicker, the cleaning gets more expensive, and the roof underneath gets weaker. A roof that might have been a $300 to $650 cleaning can climb toward $1,000 to $1,500 when the moss is heavy, and that is still cheaper than replacing shingles early. If we get on a roof and see damage that cleaning cannot fix, we will tell you straight.

Answer: Once all the moss on your roof is removed and the shingles are sparkly clean, we then apply our roof moss treatment solution (zinc). Zinc withers moss and helps keep new growth from taking hold. Zinc is only harmful to animal and plant life at high levels, and while it's an essential trace metal in the human body we're still very careful to only use the small amounts necessary to treat your roof moss infestation without overspill. The zinc withers the moss without harming your garden or surrounding wildlife, preventing another moss infestation for up to two years.

Answer: Yes. We apply safe, effective, and eco-friendly zinc-based and/or metal-free moss treatment options to prevent moss from quickly returning for residential and commercial properties. That's the Rojo promise. If you prefer a metal-free option for a particular property or landscape, say so when you book and we will use the right treatment for your roof.

Answer: With our zinc-based treatment after a proper hand cleaning, we prevent moss from returning for up to two years. Without prevention, plan on yearly cleaning. Seattle weather always wins eventually. Prevention just makes it lose slower.

Answer: Our roof moss treatment solution (zinc) comes with a free two-year warranty guaranteeing that the moss won't grow back on your roof for up to two years. If it does, we'll clean it for free. When we clean moss by hand without applying the prevention solution, we still offer a one-year warranty.

Answer: Yes, we only use environmentally friendly roof cleaning solutions. When cleaning roofs and other moss-covered outdoor surfaces, we use a zinc-based moss killer formula that is eco friendly, with a soft-wash roof shampoo method that doesn't damage your shingle granules. Our roof cleaning method is low pressure, eco friendly, and will NOT harm the plants and wildlife around your home or commercial property.

We do not use harsh chemicals or herbicides. We are careful with overspill. We also offer metal-free treatment when that is the better fit. If you have a vegetable garden tight against a drip line, tell us on the estimate visit so we can protect it.

Answer: We use zinc-based solutions and, where it fits the job, zinc strips or solutions to inhibit future growth. The core Rojo prevention service after a hand cleaning is the zinc or metal-free treatment with the two-year warranty. If you want strips discussed as part of a longer-term plan, bring it up on the estimate and we will tell you what makes sense for your roof.

Answer: Trimming helps. More sun and fewer needles mean a drier roof and less food for moss. It will not make a Seattle roof moss-proof. Even gutters on homes with no trees still collect debris. Think of tree work as a helper, not a replacement for cleaning and treatment.

Answer: If we applied prevention, you generally clean every other year instead of every year. Some heavily shaded roofs still benefit from a yearly look. After two years, the smart move is to have us back before the moss colony gets thick again. That is how you stay in the lower end of the price range.

Answer: We vigilantly comb every square inch of your guttering system, eaves-troughs, leaf guards, and other gutter attachments like downspouts to remove all debris, leaves and grime. We start by installing temporary screens on downspouts to prevent debris from migrating during removal, then hand-scoop accumulated leaves, pine needles, and moss. We flush with controlled water pressure to dislodge clogs. We remove all debris by hand, carefully collect it, and never leave a mess in the yard. We will not leave until we are sure your gutters are clean and your downspouts are completely clog free. To learn more and book now, visit here.

Answer: Downspouts are part of the job. A pretty trough with a clogged downspout still overflows. We make sure downspouts are completely clear of leaves or other potential blockers before we pack up.

Answer: Yes. We work around leaf guards and similar attachments. Guards reduce how often you need service. They do not make gutters maintenance-free in Seattle. Needles, moss, and fine debris still get in, and plants sometimes take root on top of the guards themselves.

Answer: Yes. It is not uncommon for us to remove plants that have sprouted and begun to grow and take root in gutters, but we will certainly carefully remove them as part of the job. That is a sign the debris has been sitting wet for a long time. It's best to get them out before the roots start working on seams and hangers.

Answer: Yes. Failure to keep gutters clear will result in rainwater overflowing onto roofs and siding, or downspout clogging. Overflow soaks fascia, stains siding, dumps water against the foundation, and in a cold snap can feed ice dams. Gutter cleaning is one of the cheapest ways to protect a Seattle house.

Answer: Most residential gutter jobs are measured in hours, not days. Height, length, how packed the troughs are, and whether downspouts are rooted with debris all change the clock. Combined with roof cleaning, we can often finish the whole exterior water system in one visit.

Answer: Certainly! We can tackle your driveway pressure washing and roof cleaning all on the same day for little extra cost. That is usually the smartest order of operations. Get moss and debris off the roof, clean the gutters so that debris does not sit there, then wash the hardscape so you are not rinsing yesterday's roof mess onto a clean driveway. We can also take a step further and wash the whole exterior of your house so the paint or siding shines like new again.

Answer: Never! We remove all debris by hand and carefully collect it, never leaving a mess. You should not find a pile of black gutter sludge in the flowerbed when we leave. We actually take pride in packing up the moss slurry and gutter sludge in buckets as we work.

Answer: Yes. Our process includes inspecting for issues like improper pitch or fascia board rot. We are a cleaning company, not a gutter-replacement contractor, but we will tell you if something looks wrong so you can fix it before the next big rain.

Answer: When we pressure wash, we go hard without chipping the paint, cleaning roofs (only where the material allows), siding, driveways, decks, patios, stairs, sidewalks, fences, and even your pool aprons and retaining walls. That includes paved patios, brick retaining walls, public sidewalks, house siding, and wood structures when the pressure is kept in check.

We commonly remove lichen, bird droppings, pollen, algae, black streaks, tire marks, mildew, stains, oil, grime, and moss.

Answer: Pressure washing is high-pressure water for tough surfaces like concrete. Power washing is the same idea people use in conversation. We use professional surface cleaning machines and the right pressure for the surface. Soft washing is low pressure plus the right cleaner, which is how we treat vinyl siding, many painted surfaces, and roofs that need a shampoo rather than a blast.

Using 4,000 PSI on vinyl or wood is how siding gets scarred and decks get destroyed. Using gentle pressure on a moss-caked concrete driveway is how you leave it mossy. We match the tool to the surface, meaning high pressure for stronger materials like concrete and low pressure for delicate materials like stained wood.

Answer: Absolutely! We regularly take moss, lichen, grime, dirt, tire marks, and many stains off concrete. Oil can lighten dramatically. Some old petroleum stains ghost a little even after a proper wash. Rust and irrigation stains sometimes need extra attention. We will be honest on the estimate if a mark is likely to lighten rather than vanish.

Answer: Yes, when the pressure, nozzle, and technique are right. Stamped and decorative concrete can be etched by the wrong tip or by lingering in one spot. Pavers can have sand joints disturbed if somebody treats them like a blank slab. We adjust. If your hardscape is sealed, new, or decorative, tell us before we start.

Answer: Yes. Seattleites choose us because no matter how dirty your surface is, and no matter what type of surface it is, be it a brick retaining wall or a public sidewalk, our Seattle pressure washers will clean it. Moss on garden walkways and patio stairs is a classic Pacific Northwest slip hazard. Stairs and walkways are some of the highest-value, fastest-win surfaces we wash.

Answer: Yes. Retaining walls collect algae and moss on the shaded face. Pool aprons get a film that is ugly and slick. Brick needs enough pressure to clean and not so much that you blow the face off the brick or the mortar out of the joints. If you're paying for a full exterior pressure washing job, those surfaces are regularly cleaned by our team without question, not extras we throw in as an upsell.

Answer: We keep pressure appropriate, keep the wand moving, and treat landscaping as part of the job, not as acceptable collateral. On siding we use gentle soaps and cleaners specially formulated for the surface and we don't chip the paint. Close windows and doors before we start. Move or cover patio furniture if you can. We will work carefully around what has to stay, and move things like flower pots to clean underneath them as needed.

Answer: It helps for the first visit and the estimate so we can ask questions and get shown around, but after that most jobs can be done while you're not there so long as we have access to the work areas and a water spigot. Tell us about dogs, gates, parking, HOA rules, and anything we should not spray. For many repeat customers we'll come and go and the only thing they'll notice is the night and day difference of the cleaning job when they get home from work or vacation.

Answer: As soon as it has dried enough that you are not tracking slurry. In Seattle that can be the same day. Give oil-treated spots a little extra time. We will tell you if a particular cleaner needs a short dwell or rinse window.

Answer: The concrete itself is tough. Damage usually comes from the wrong nozzle, holding the wand in one place, or blasting a cracked, spalling slab so hard that loose material lets go. We use professional surface cleaning equipment on cement surfaces and our experience ensures pressure never rises too high while cleaning.

Answer: Our core service is the clean. Sealing is a separate decision based on the slab, the weather, and whether you want that extra layer. Ask on the estimate if you want sealing discussed after the wash.

Answer: Yes. Vinyl gets low pressure only. High pressure scars the siding, drives water behind the courses, and can blow out caulk. Gentle pressure plus the right cleaner lifts mildew, algae, and that dingy Seattle film. On wood we keep pressure as low as we can and keep moving. Using the wrong nozzles or failing to moderate pressure is how wood gets damaged beyond repair. On painted siding the goal is to go hard on the dirt without chipping the paint. If paint is already failing, washing can pop loose chips. That is the paint telling you it is time for prep and a coat, not the washer destroying a perfect wall.

Answer: Wood decks and wood structures get a careful wash, not a concrete-style blast. We clean moss, algae, grime, and that slippery film Pacific Northwest decks grow every winter. Pressure stays low. Grain direction matters. If the deck is rotten in spots, we will point it out rather than blow a hole through a bad board.

Answer: A proper wash takes the slime off, which makes the deck less slippery. Freshly cleaned wood can feel a little fuzzy if the grain raises. That is normal and usually settles or sands off before a stain. It's best to plan stain or sealer after the wood has dried, not the same afternoon as a cleaning in a drizzle.

Answer: If the deck is bare or the old finish is worn, yes. Cleaning is the right first step. Let it dry thoroughly first though. Seattle humidity can make that a multi-day wait at times. We handle the clean. Your painter or your weekend project can handle the finish once the wood is ready.

Answer: Yes. Mildew, algae, moss, and grime on siding, garage doors, fences, etc., are regular work in this climate. The long rainy season in the Pacific Northwest is rough on a home's exterior. A washed house looks occupied and cared for, and a lot less like a moss wall decor.

Answer: Plan on at least yearly for shaded or shaded walls. Sunny, open south walls can sometimes go longer. If you can write your name in the film, or if the north wall is green, then it is time for a wash! Pairing siding with gutter and roof cleaning keeps dirty roof runoff from dirtying a freshly washed wall.

Answer: Yes, of course! Exterior chimney cleaning is one of the additional outdoor cleaning services we handle with the rest of the house. Brick and masonry chimneys collect moss and streaks on the weather face just like any other outdoor surface, and we want to see them looking clean and new just as much as you do.

Answer: We clean the whole exterior! Roofs, moss, gutters, and pressure washing are the core, and we also clean patios, decks, driveways, sidewalks, stairs, retaining walls, pool aprons, home siding, exterior chimneys, solar panels, and skylights. If it lives outside and Seattle has turned it green or gray, ask. We would rather quote it than have you hire three companies for one Saturday.

Answer: Yes. We do residential and commercial work, including commercial roofs, commercial gutters, and commercial pressure washing. Commercial roof cleaning typically runs $2,000 to $4,500 because the jobs are larger and take more labor. Storefronts, apartment exteriors, HOA common areas, and office hardscape are all fair game. Call (206) 228-7591 and tell us what you manage.

Answer: Yes. Demossing is removing moss from outdoor surfaces, not only shingles. We demoss roofs, siding, decks, walkways, and other exteriors. Roof demossing in Seattle starts at $299 and goes up with size and how many other surfaces you want done at the same time.

Answer: Call (206) 228-7591, use the free estimate form on our site, or reach us at rojomossremoval@gmail.com.

Estimates are based on total area to be cleaned, amount of accumulated moss and debris, roof height and pitch, and ease of access. An in-person visit is how we give you an accurate number.

Answer: Photos help us prepare. They do not replace seeing pitch, access, moss thickness, brittle shingles, skylights, or how far the hose has to run. We would rather walk the property once than guess low and argue later.

Answer: Size, moss load, stories, pitch, access, and how many surfaces you want done. A moss-free debris clean is the low end. A steep, two-story, cedar-shaded roof that is a moss mattress is the high end. Combining roof, gutters, and driveway on the same day is usually a better value than three separate trips.

Answer: You surely do! The cost is determined by the dimensions of the roof and the labor involved. Book before the moss has time to grow extensively if you want to stay closer to the $300 to $650 residential range instead of climbing toward $1,000 to $1,500.

Answer: We are based in Seattle at 4427 50th Ave S, Seattle, WA 98118 (office visits are appontment only), and we serve Seattle and surrounding areas across the Puget Sound, including West Seattle, Bellevue, Auburn, and Edmonds. If you are not sure you are in range, call us for a friendly chat. If we can get there and do the job right, we will.

Answer: Monday through Friday 8:00 am to 6:00 pm, Saturday 8:00 am to 12:00 pm, Sunday closed. Call (206) 228-7591 to double check if we're open on holidays, as this depends year by year on staffing.

Answer: Yes. We provide moss removal all year round, which is a benefit of the hand-brush method. Other spray-and-forget companies can't work in the rain like we do, unless they're dishonest about chemical overspill. Winter is actually when moss is holding the most water and doing the most damage, so let's get rid of it! We will not work in conditions that make a roof unsafe though, but we do not disappear from November to March the way fair-weather washers do.

Answer: Move cars off the driveway if we are washing it. Close windows and doors. Take cushions off patio furniture or be ready for us to work around them. Secure pets. Show us the water spigot, gates, and any surfaces you do not want touched. If you have a sensitive garden bed on a drip line, point it out, although we're experienced at spotting these things on our own. That is the whole list for most homes. We'll remind you over the phone if you like!

Answer: For the estimate, it helps. For the work, you do not have to stand and watch, but someone should be reachable and we need access. Many clients leave for work after a morning walkthrough.

Answer: We certainly are! Our licensed and insured roof moss removal experts handle residential and commercial properties. If you need insurance details for an HOA or property manager, ask when you book.

Answer: We're locally- and family-owned. Tomas A. Rojo is a 26-year+ resident of south Seattle (as of Sept, 2026). He has been pressure washing and cleaning roofs for decades and opened Rojo Moss Removal and Power Washing, LLC in 2020 to put that experience into a locally owned Seattle outdoor cleaning business. You are not getting a call-center crew that learned moss last month.

Answer: Because a mossy roof is slippery, tall, and easy to ruin. DIY pressure washing on asphalt shingles strips granules and is a big no-no. Companies that are less experienced and honest than us will tell you pressure washing a roof is fine because they want to get a quick dollar from you, and the internet is full of misinformation. Even AI searches will straight up give you poor information on proper roof cleaning methods. DIY scraping across the face of a shingle does the same as high pressure jets, it just ruins the shingles compared to our gentle hand brushing. The use of wrong chemicals also burns plants and still leaves dead moss in place. Gutters on a two-story house are how people meet their insurance deductible! We do things right, and it's eco-friendly, too!

Hire out the work that is unsafe for beginners or has a long-term benefit like our professional roof moss prevention that is guarunteed to be effective, and save the easy stuff for Saturday.

Answer: Many roof cleaning companies simply spray chemicals on your roof and wait for time and rain to do the work. While this can kill the moss, it does not fully remove it. We take the moss off by hand, we do not power-wash asphalt shingles, we use eco-friendly zinc-based or metal-free prevention, we collect the debris, we clear the downspouts, and we warrant the prevention work. Results are nearly always a night and day difference. That's the Rojo promise.

Answer: More than you probably think! Appraisers and buyers see moss as deferred maintenance. A sparkly-clean roof, flowing gutters, and a washed driveway change how the whole house photographs and how well it shows. We have been called in last-minute before a refinance assessment. The roof looked like new, and the owner believed it helped.

Answer: We document work and we have a gallery of outdoor cleaning photos. If you want photos for a listing, an HOA, or a property file, ask at the start of the job.

Answer: Your satisfaction is our priority. Zinc prevention carries a free two-year warranty. If moss grows back in that window, we clean it for free. Hand cleaning without prevention still carries a one-year warranty. If something is not right, call (206) 228-7591 and we will make it right. We'd rather hear your honesty over the phone on the same day so we can come back rather than a bad review a month later. From our track record though, disatisfied customers are very rate.

Answer: We make booking easy! Call (206) 228-7591, email rojomossremoval@gmail.com, or request a free estimate on rojomossremoval.com.

Tell us the surfaces you care about, whether that is the roof, gutters, driveway, siding, deck, solar, or a commercial lot, and we will get you on the calendar.