Power washing a roof can cause long term damage and void the warranty of your roofing shingle. Let's approach this as an infection rather than a stain. Never pressure wash a roof! Pressure washing an asphalt roof shingle can damage the shingle and does not solve the problem. A dirty looking roof is most likely suffering from an infection of algae, moss and/or lichen. We must achieve a 100% kill ratio on every cell of algae and every root of moss. Anything less than a complete sterilization is an attempt in vein, like going against a doctors recommendation and taking less than a fully prescribed treatment of antibiotics.

Never pressure wash a roof! If you've ever cleaned out your gutters you may have noticed roofing granules inside them. If this amount of granules can dislodge naturally from just rain, imagine what even low pressure can do. We use a NON-Pressure roof cleaning system that completely eliminates algae, mold, mildew, moss, and lichen from you roof by using detergents approved by the Asphalt Roofing Manufacturers Association (ARMA). Read the latest ARMA bulletin (pdf) on methods of cleaning your roofing shingles.

Thompson Roof Cleaning and Powerwashing is a leading NJ contractor for professional and insured gutter cleaning & whitening. We realize you have many choices when it comes to servicing your gutters. Our service and reputation stands apart from the competition. There is nothing fancy about how gutters are cleaned. We like to use a pressure washer to blow the debris over the sides. We do not like to force large amounts of debris down the gutter leader. This can lead to larger problems like clogging the elbows.

Solar panels can lose anywhere from 10%-20% of their power generating capabilities after the first year. From our observation a UV blocking film of dirt develops over the glass panels. Start adding pollen, bird droppings, road traffic, or salt if near the ocean, you can start to seriously diminish you return of your investment in the solar panels on your home or building. The safest and most thorough way to clean a solar panel is to use de-ionized water. This is created by running water through a series of filters to remove all of it's impurities.

HOA's, condos, property managers, commercial property owners: Thompson Roof Cleaning and Powerwashing is a leading NJ commercial cleaning contractor. We are flexible in accommodating your schedules to allow your business to run smoothly while cleaning your property. Night scheduling is also available for store fronts, HOA's, condos, property managers, commercial property owners. Thompson Roof Cleaning and Powerwashing uses the finest antimicrobial detergents and emulsifiers that are approved by leading manufacturers of roofing shingles and sidings such as vinyl, stucco, dryvit, and aluminum.

Excellent job, excellent customer service. They got off all the muck deposited on the house by Avalon Piscataway construction over the last couple years. I highly recommend them. Will definitely use them again

Found these guys via FB ads and contacted them for a quote. Very responsive and reasonably priced. Sabrina was great with answering my questions and always kept me in the loop. Power wash came out great and the guys were very professional. Definitely recommend and would use them again.

They power washed my house today and cleaned out the gutters. All the green film that was on the siding is completely gone! Everything was handled professionally from start to finish on the phone with no contact service! I highly recommend them and will definitely use them again in the future!

What's new?

DOES YOUR ROOF LOOK LIKE THIS⁉️Forcibly removing lichen can cause serious damage to the shingles 😦

Posted on Mar 05, 2021  •  Facebook

It's a beautiful day for roof cleaning ☀️ Catch us on the road 🚛

Posted on Mar 04, 2021  •  Facebook

WE PROVIDE SOFT WASHING FOR TENNIS COURTS 🎾🤩

Posted on Mar 02, 2021  •  Facebook

Looking for a company that provides exceptional service at a reasonable cost?! We got you covered 😎

Posted on Mar 01, 2021  •  Facebook

Get a head start on your Spring cleaning ☀️💦

Posted on Feb 24, 2021  •  Facebook

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