Serving Olney, Rockville, Gaithersburg, Bethesda, Frederick, Columbia & Potomac MD

Roof Cleaning

What are those unsightly black marks on your roof?

If you’ve been watching those black streaks grow from the gutters up, they’ didn’t appear overnight. They’ve been slowly working their way into your roof for years.

The cause of the streaks is an algae-like substance called Gloeocapsa Magma. This bacteria has been spreading like wildfire due to rising temperatures and humidity. Furthermore, shingles are now being produced with limestone, which the bacteria feeds on.

Gloeocapsa Magma can also spread to parts of your roof that are not cleaned properly. While partial cleaning is a temporary solution to make the roof look better, it doesn’t have long-lasting benefits. Those black streaks don’t just look bad -they’re eating your roof!

What you can expect from Superior Pressure Washing:

Safety is our absolute top priority, for our technicians and your home

Dark stain removal and growth eliminate

Professionally trained staff in uniforms, delivering the service with branded trucks and company equipment (no subcontractors!)

Soft washing to protect your home. We will never use high pressure on a roof, even if asked. If we can’t clean it with low pressure – we just won’t clean it. We protect our customers with this commitment.

Expectations that are always met and almost always exceeded.

Take Curb Appeal To A Whole New Level

Get Your Free Estimate Today!

Our Cleaning Procedures

All roof cleaning is completed with a two-person team. One technician is on the other ground and the other is the cleaner on the roof. Here’s how it works:

Upon arrival, we situate hoses and prepare your property to safeguard your landscaping and personal belongings. We always douse affected surfaces in water, but also move lawn furniture, lawn decorations and cover fragile plants such as Japanese Maple trees and Roses as needed

We place one or more ladders around the home using ladder stand offs to protect gutters. Large, heavy-duty trash bags are fixed to the bottom of the downspouts to catch any solution run off.

We place one or more ladders around the home using ladder stand offs to protect gutters. Large, heavy-duty trash bags are fixed to the bottom of the downspouts to catch any solution run off.

We place one or more ladders around the home using ladder stand offs to protect gutters. Large, heavy-duty trash bags are fixed to the bottom of the downspouts to catch any solution run off.

Finally, all furniture will be returned to proper place and a final rinse of plants will be conducted. Contractor bags will be collected and disposed of correctly.

We prioritize quality and safety. That’s why our team always follows the Asphalt Roofing Manufacturers Association approved method for cleaning and treating roofs.

Why don’t we just pressure wash your roof?

This is the #1 question we get from homeowners, real estate agents, and property managers. The answer is easy: It’s very unsafe for our technicians due to the wet slippery conditions and strong jolt of the pressure washer, but it’s also very unsafe for your home.

Fiberglass-based asphalt shingles are manufactured with mat composed entirely of glass fibers of varying lengths and orientations. This fiberglass base is then surfaced with a specially-formulated asphalt coating, followed by weather-resistant mineral granules. When you or a contractor get up on the roof and pressure wash to remove those ugly black streaks more harm is being done than good. The high pressure from the washer:

Removes the weather resistant mineral granules as well as some of the asphalt coating.

Triggers irreversible damage that often requires roof replacement

Take this example in the pre-cleaning photo to the left: Even after we cleaned the roof correctly, you can still see the pressure washing marks very clearly. Unfortunately the customers who own this roof initially paid more for another company to come in and pressure wash the roof. After the company damaged it, our team came in and used soft washing to clean it correctly.

Will our methods kill the lawn and landscaping?

Our methods will not kill your plants and lawn because we take every precaution to protect them. Between using tarps, drop cloths, and plenty of water, we protect your landscaping every
step of the way.

Will roof cleaning protect my insurance policy?

Insurance companies and home inspectors are finally realizing how important roof cleaning is to the quality of a home. Many insurance companies are even canceling policies due to dirty roofs.

"I think this is the most professional looking staff! They always impress!"

"We have used Superior Pressure Wash multiple times to power wash our house, driveway and deck, and have been super pleased every time. They always go above and beyond and their prices are fair."

Five Star Ratings!

Our Pressure Washing Services

Window Cleaning

Window Cleaning

Our professionals bring a streak-free result to your interior and exterior windows. Offering both a water-fed pole and traditional cleaning system, we bring a customized clean to your panes, screens, sills, and frames.

House Washing

House Washing

We utilize a soft washing solution to remove dirt and grime from your siding. This low pressure washing approach is the best way to bring the shine to your exterior, and it guarantees that ‘like new’ result for your home.

Gutter Cleaning

Gutter Cleaning

Our team uses a hot water cleaning method to make sure that your gutters are ready for any weather. We provide complete debris removal, clear clogs, & deliver minor maintenance to keep your home protected day in & day out.

Commercial Cleaning

Commercial Cleaning

We are your professional source for pressure washing buildings & concrete. Using hot water pressure washing technology, our technicians work with property managers & commercial sites to create a clean, safe space to do business.

Deck Restoration

Deck Restoration

Our team at Superior Pressure Washing has had years of experience and hundreds of decks under our belts! We use wood cleaning products that allow us to use extremely low pressure to strip and clean a variety of wood and stains.

Roof Washing

Roof Washing

We excel at removing black streaks from your shingles! Our soft wash system eliminates lichen, mold, moss, and dirt from your roof. The result: Shingles that are as long-lasting as they are curb appeal ready.

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Our client’s property was in a battle between curb appeal and a dirty roof. And the dirty roof was winning. Black streaks have a way of taking over a property. When your roof is bogged down by dirt and grime, the effect impact the rest of your home. And the result can be downright uninspiring.…

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By ambservices | February 4, 2015

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By ambservices | February 28, 2014

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