Roof Cleaning & Mold Prevention

With our cleaning service, we’ll give you a 1-Year for algae, mildew, moss, and black roof mold prevention. In addition, if you decide to join our “Stain Free Program”, you get an additional 3 year guarantee.





Your service is amazing, I am so happy that my roof looks new again and my home looks so much better from the street!!
Jonathan C, Fairfax VA

Affordable Non Pressure Roof Cleaning Service

We offer a Non Pressure Roof Cleaning Service you can afford, that has roofing manufacturer approval, and guaranteed safe for cleaning shingle roofs!

Your roof will look like new, saving you thousands over the cost of a new roof while adding value to your home!

How Our Roof Cleaning Process Works

Because power washing is damaging to your shingles, we will never power wash your roof. Instead, using less pressure than a garden hose, we apply an algae killing solution we mix specifically for roof cleaning. In most cases, we don’t even have to get on your roof. And, we always take great care to protect your perimeter landscaping.

We offer the following roof cleaning services:

  • Non Pressure Washing of asphalt roofing shingles
  • Steep residential and commercial shingle roof cleaning
  • Soft Spray soffit and fascia washing
  • Non pressure mildew removal and prevention treatment for asphalt shingle roofs, and all exterior surfaces

If there is moss growth on your roof, the green growth left untreated can become so thick that it looks like carpet and is very noticeable from the ground. We can kill this moss, turning it a blonde color, but unlike the black streaks, which will disappear immediately when treated, the moss can remain for up to six months until Mother Nature safely washes it away.

We are in compliance with the chemical recommendations for asphalt shingle roofing manufacturers.

Benefits of Our Cleaning and Mold-Prevention System

We use the most effective and environmentally biofriendly cleaning and protection system. The benefits are enormous:

  • Extends the life of your roof
  • Reduces annual cooling costs by up to 10%.
    (Savings vary depending on surface color and pitch).
  • Improves curb appeal, increasing resale value and compliance with homeowner association rules
  • Does not contain copper sulfate.
    (See University of Florida (Publication #FA-13) EDIS warnings for Aquatic Sciences and Aquaculture Facilities)

We Give You A 3-Year Guarantee

With our standard roof cleaning service, you’ll get a 3-Year Guarantee. That means, if your roof has any algae, mildew, moss, and black roof mold growth within a year of treatment, we will come out free-of-charge to retreat.

Save yourself the hassle and expense of purchasing a whole new roof!

> Contact NOVA Roof Cleaning today