Serving East Tennessee • Knox, Blount, Loudon & Sevier County info@thepressuresontn.com
The Pressure's On pressure washing trucks and trailers in East Tennessee

Roof Soft Washing in Knoxville, TN

Gets rid of those black streaks and helps your roof last longer. No high pressure, ever. Local, licensed and insured, with free estimates in Knoxville.

Family run since 2007 • Fully licensed & insured • Free estimates

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Rather talk? Call or text 865-268-9589

Roof Soft Washing in Knoxville Done Right

Under Knoxville’s big hardwoods, black roof streaks are everywhere. That algae holds moisture against your shingles and makes the whole house look older than it is.

Those black streaks on your shingles are algae, and it feeds on the limestone in the shingles. It makes a nice house look old and it shortens the life of your roof. We soft wash roofs with no high pressure at all, which is the method most shingle makers recommend.

What We Clean in Knoxville

  • Asphalt shingles, metal and tile roofs
  • Black streaks, algae, moss and lichen
  • No walking damage and no high pressure on shingles
  • Gutters and downspouts rinsed after
  • Landscaping protected the whole time
Roof Soft Washing by The Pressure's On, serving Knoxville, TN

Signs You Need It

  • Black streaks running down the roof
  • Green moss or gray lichen spots
  • One side of the roof looks much darker than the other
  • Algae spreading onto the gutters and fascia

Roof Soft Washing Around Knoxville

We soft wash roofs across Knoxville, from steep two story homes in West Knoxville to ranch homes in Fountain City and South Knoxville. No high pressure ever touches the shingles, and we protect your plants before we start.

What We See on Knoxville Properties

Knoxville has a lot of older homes under big hardwood trees and a lot of newer HOA neighborhoods with tight appearance rules. Both deal with green siding, black roof streaks and stained driveways. Downtown and along the busy corridors, businesses fight gum, grease, exhaust grime and dirty parking garages.

How We Do Roof Soft Washing, Step by Step

  1. Look it over. We check the roof pitch, gutters and what’s below so we can plan the safest way to work it.
  2. Protect. We soak your plants and landscaping and keep them wet while we work.
  3. Soft wash. We apply our solution with low pressure to kill the algae, moss and lichen at the root. No pressure washer ever touches your shingles.
  4. Rinse and clean up. We rinse the gutters, siding, walkways and plants so nothing is left behind.
  5. Let it finish. Most streaks are gone the same day. Heavy moss and lichen loosen and wash away over the next few rains.

What to Expect

  • Before we come: close windows and doors, and move cars, grills and patio furniture out of the way if you can.
  • Pets: keep them inside until we’re done and things dry.
  • Water: make sure the outside spigot works. That’s all we need from you.
  • On the day: we text you when we’re on the way and when we’re done, with photos.
  • After: everything is rinsed and ready to use the same day.

Roof Soft Washing Cost in Knoxville

Roof cleaning pricing depends on the size and pitch of the roof, how many stories, and how much moss and lichen there is. We give you a free, written price after we see it, and the price we quote is the price we charge.

Estimates are always free, and we’re based in Maryville, so Knoxville is part of our regular area.

Our Promise

We don’t leave until it looks right. Before we pack up we walk the job with you, or send you photos if you’re at work.

Family run since 2007. Fully licensed and insured.

The Pressure's On in Knoxville, Online

Read what Knoxville neighbors say in our Google reviews, and see our latest Knoxville area jobs on Facebook and Instagram.

Roof Soft Washing in Knoxville: FAQ

How long does a roof cleaning last in Knoxville?

Usually several years. Shady roofs under big trees may need it sooner than roofs in full sun.

Do you clean moss off Knoxville roofs?

Yes. Soft washing kills moss and lichen too. Thick moss loosens up and washes away over the following weeks of rain.

Do you work downtown or at night?

Yes. A lot of our Knoxville commercial work happens at night, including parking garages and storefronts.

Can you help us meet our HOA’s rules?

Yes. If your HOA sent a letter about mildew or a dirty driveway, we can usually get you cleaned up fast.

Will roof cleaning void my shingle warranty?

Low pressure soft washing is the method shingle makers and the Asphalt Roofing Manufacturers Association point to for removing algae. Pressure washing is what you want to avoid, and we never use it on shingles.

Do you walk on the roof?

As little as possible. Most roofs we clean from ladders and the ground. When we do need to get up there, we’re careful and wear soft soled shoes.

Is cleaning worth it, or should I just replace the roof?

If the roof is in good shape and just dirty, cleaning costs a small fraction of a new roof and can make it look close to new. If it’s at the end of its life, we’ll tell you.

When is the best time of year to clean a roof?

Any time it’s above freezing. Spring and fall are popular, but the algae doesn’t care what month it is.

More roof cleaning questions? See them all in our FAQ →

Get a Free Roof Soft Washing Estimate in Knoxville

Tell us a little about the job and we’ll get back to you fast with a real price. No pressure, no hassle.

  • Free estimates, usually same or next day
  • Residential and commercial
  • Fully licensed and insured

Rather talk? Call or text 865-268-9589

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