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Frequently Asked Questions

From the cost of roof cleaning to how often you should get your gutters cleaned in Seattle, the outdoor cleaning experts at Rojo answer all your frequently asked questions.

before and after Seattle roof cleaning service by Rojo Moss Removal and Power Washing LLC.
patio cleaning seattle before and after photo.jpg
before and after Seattle pressure washing service by Rojo Moss Removal and Power Washing L
before and before after Seattle gutter cleaning serive by Rojo Moss Removal and Power Wash

Answering Your Seattle Outdoor Cleaning Questions

  • How much does it cost to clean a roof in Seattle? 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.

  • How often should you clean your roof in Seattle? 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. 

  • Is it worth having your roof cleaned? 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.

  • How long does it take to pressure wash a driveway? 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.

  • What time of year is best for moss removal? 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.

  • How much does it cost to treat moss? 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.

  • Is it OK to scrape moss off roof? 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.

  • How much does it cost to clean gutters in Seattle? Answer: Depending on how many gutters you have on your house, the cost of Seattle gutter cleaning can vary from $200 to $500.

  • How often do you need to clean your gutters in Seattle? 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.

  • How often does a driveway need 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.

  • Should you use a pressure washer on vinyl siding? 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.

  • Is it necessary to remove moss from roof? 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.

  • Is our roof cleaning method eco friendly and non-toxic? 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.

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