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Our roof cleaning services are performed using professional grade equipment and cleaners that are specifically designed for cleaning roofs.

Instead of relying on high pressured pressure washers, we use environmentally safe products and less than 400 PSI for cleaning roofs.

We use a custom designed trailer unit to clean roofs quickly and safely.

Our technicians have taken extensive training to safely clean roofs through Alliance Trade Services.

We have 17 years of experience performing roof cleaning and other pressure washing services.

We use a two man roof cleaning system to ensure proper safety and quality on all of our roof cleaning jobs.

Our technicians are also trained to inspect your roof for over 50 common problems before performing any work.

Find out more about roof cleaning and common roof repair issues on this web site.  Visit our common roof leaks page to see the issues that cause common roof leaks in the Maryland area.

Why should roofs be cleaned?

About our roof cleaning services

Gleo Caspa Magma growing on roof, click for full size image
Roof cleaning with the appropriate cleaners can effectively remove this unsightly blemish from roofs fairly easily if you know how. Some manufacturers suggest using a mixture of TSP and Bleach to kill the fungus. Other manufacturers suggest using a sodium hydroxide based cleaner instead.  Henry's Housework Inc. offers both methods of cleaning because every job has different variables involved and our goal is to get the best results possible!

Regardless of which cleaning method is used when cleaning roofs it's important that you check with the manufacturer of the roof to meet their guidelines. Some manufacturers will void the warranty on the shingles for one method but not the other. However, ALL roofing manufacturers agree that the use of high pressure should NEVER be used when cleaning roofs.
Moss growing on roof, click for full size image
Mold growing on roof, click for full size image

Who needs roof cleaning services?  If your house is near trees, the debris from those trees will settle on your roof and decay allowing algae and mold a place to grow. When a roof is covered in algae and mold it can't dry out properly and it also can't reflect the sun's rays causing it to heat up more than usual. This can drastically raise your utility costs and in some cases dramatically shorten the life or your roof.


 

Pollution, floating pollens, airborne spores and residual debris are also a great food source for moss. They allow the growth of mold which makes a perfect breading ground for moss to grow. Northern facing roof surfaces usually get the least amount of the sun and will take longer for moisture or dew to evaporate or run off. Believe it or not but the steeper the roof pitch, the more moss will grow! Moss can also create an additional problem because its roots will cause the composition to pit and crack. Eventually this will cause your roof to leak which will cause damage inside of your home until it's repaired or replaced.

The most common reason for cleaning asphalt shingle roofs is to remove an algae growth called Gleo Capsa Magma. This particular type of algae is air-born and will collect on any type of roof. In most cases the owner of the property won't notice the algae growth until it begins to take over large sections of the roof. This algae usually forms dark brown or black streaks and stains on the roofing and it thrives in mostly warm humid areas.

Maintenance Plans

Henry's Housework, pressure washing, roof repairs, gutter services and other maintenance services in Montgomery County Maryland.
Find out more about our gutter services here.
Find out more about our services here.
Find out more about our roof repair services here.
Contact Henry's Housework
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Pressure Washing
Deck Cleaning

Roof Cleaning

Concrete Cleaning

Maintenance Plans

Commercial Services

Gutter Services

Gutter Cleaning

Gutter Repairs

Gutter Installations

Gutter Guards

Roofing Services

Roof Repairs

Roof Inspections

Ice Dam Removals

Commercial Services

Brick Cleaning

Composite Lumber

Building Cleaning

Graffiti Removal

Stone Restoration

Henry's Housework Inc.
Office: 301-216-9675    Fax: 301-216-9679
13433 Tilford Court Germantown, Maryland 20874
Our residential services are available in these and other cities in Montgomery County Maryland

Free Written Estimates
Licensed - Insured - Bonded
MHIC #56039
Extensive Training & Certifications
Pressure Washing Industry Instructors
Professional Staff
Reliable Service
Over 17,000 Satisfied Clients
18 Years of Experience
Group Discounts
Expert Advice
Professional Grade Products
Professional Equipment
Customer Support
We support Our Community
Award Winning Services
Find Out More Here!

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How To Avoid Common Scams From Gutter Companies!

How To Find Another PRO Outside Of Montgomery County Maryland!

Find out more about our pressure washing services here.

Roof Cleaning

Gutter cleaning and repair services

Our Technicians clean, repair and install gutters and gutter guards to prevent flooded
basements and other damages.

Pressure washing services

Our technicians are some of the best trained staff in the nation!  With certifications from PWNA, Alliance, ABR and many others, you can trust us to do the job right!

Roof repairs and inspections.  Our trained technicians can usually solve your roof leak problems for less money than you think!

Roof repairs

Nuisance wildlife trapping, ice dam removal and other services are also available.  Find out more here!

Specialty services

Ashton, Aspen Hill, Barnesville, Beallsville, Bethesda, Boyds, Brinklow, Brookeville, Burtonsville, Cabin John, Chevy Chase, Clarksburg, Colesville, Damascus, Darnestown, Derwood, Gaithersburg, Garrett Park, Germantown, Glen Echo, Kensington, Laytonsville, Montgomery Village, North Bethesda, North Potomac, Olney, Poolesville, Potomac, Rockville, Sandy Spring, Silver Spring, Spencerville, Takoma Park, Washington Grove, West Bethesda, Wheaton

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Deck Stripping
Deck Maintenance
Deck Pressure Washing
Deck Sealing

Benefits of Roof Cleaning

Pre Cleaning Inspection