🏚️ College Park, Prince George's County
Roof Washing in College Park, MD
In College Park, Maryland, our humid climate makes roof algae and black streaks nearly inevitable. OneNation Pressure Washing provides professional roof washing in College Park using a safe, low-pressure soft wash system that eliminates unsightly stains and protects your Prince George's County home's most important investment.
Low-pressure soft wash that eliminates black streaks, moss, and algae without voiding your roof warranty.
Why College Park Homeowners Choose Us
College Park is a vibrant university city home to the University of Maryland's flagship campus, as well as a diverse mix of residential neighborhoods ranging from student-heavy areas near campus to quiet family neighborhoods like Berwyn Heights and University Park. The city's significant rental housing stock and owner-occupied properties alike benefit from regular professional exterior cleaning.
Those black streaks running down your roof aren't just cosmetic — they're a living organism called Gloeocapsa Magma algae that feeds on your shingles' limestone filler and accelerates their degradation. Left untreated, roof algae and moss can shorten your roof's lifespan by years, potentially costing thousands in premature replacement. OneNation's professional roof washing service eliminates these threats safely and effectively.
← All services in College ParkBenefits of Professional Roof Washing in College Park
Extends Roof Lifespan
Algae and moss physically degrade shingles by retaining moisture and feeding on limestone granules. Our treatment stops this damage and can add years to your roof's life.
Warranty-Safe Process
Our soft wash method follows ARMA guidelines and won't void your roofing manufacturer's warranty. High-pressure washing can — and often does.
Improves Energy Efficiency
Dark algae streaks absorb more heat, increasing attic temperatures and air conditioning costs. A clean roof reflects more sunlight and keeps your home cooler.
Long-Lasting Results
Because we kill the algae rather than just washing it away, results typically last 2–5 years — far longer than ineffective DIY methods.
Our Roof Washing Process in College Park
Roof Assessment
We inspect shingle condition, identify algae type (algae, moss, or lichen), and determine the appropriate solution strength for your specific roof.
Ground & Gutter Protection
Landscaping and gutters are protected before application. We pre-wet vegetation to neutralize any cleaning solution contact.
Soft Wash Application
Our ARMA-compliant soft wash solution is applied from ridge to eave at low pressure, thoroughly coating all affected areas.
Rinse & Inspection
A gentle low-pressure rinse removes the cleaning solution and dead organic material. We inspect every section and spot-treat any remaining areas.
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