Remove the black streaks from your roof without damaging your shingles. Our low-pressure roof soft wash kills the algae that causes the stains, giving you safe roof stain removal and a roof that looks clean and even.

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High pressure strips protective granules from shingles. A soft wash removes stains safely.
Those dark streaks running down your roof are usually an algae called Gloeocapsa magma. It spreads from shingle to shingle, feeds on the limestone filler in many asphalt shingles, and gets worse every year. It makes a roof look older than it is and can hurt curb appeal when you sell.
Pressure washing a shingle roof is a mistake. High pressure blasts off the granules that protect shingles from the Texas sun and can void manufacturer warranties. Our roof soft wash uses low pressure and a cleaning solution that kills algae, moss, and lichen at the root, then rinses clean.
Most roof washing jobs fall between $750 and $1,050 ($0.30 to $0.35 per sq ft), depending on roof size, pitch, and how heavy the staining is. Your quote is always free. Add a house wash and save with our exterior cleaning packages, or see our house washing service.
Want a quick ballpark first? Try our free pressure washing cost calculator, then book your exact quote.
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We offer roof washing in Arlington, Fort Worth, Grand Prairie, Mansfield, Irving, and Dallas. Call (817) 580-9881 for a free quote.
We soft wash roofs for homes across Arlington and nearby DFW cities, including Grand Prairie, Mansfield, Fort Worth, Southlake, Keller, and Hurst. Tile roofs get their own careful process on our tile roof cleaning page. See all service areas.
Average roof wash: $750 to $1,050 for a typical 2,500 to 3,000 sq ft roof. Steep pitch, tile roofs and heavy algae cost more. See average prices by roof size.
Dark algae streaks make a roof absorb more of the sun’s heat. Removing them lets your shingles reflect sunlight the way they were designed to, which can help keep attic temperatures down during an Arlington summer. How much it helps depends on shingle color, attic ventilation, and insulation, so think of it as a bonus on top of a cleaner, longer-lasting roof.
A real tile roof we soft washed in Arlington, TX. Drag the slider to see the black streaks and algae removed with low-pressure soft washing.
After
Before
We do not just show up and spray water. Every job follows strict risk-mitigation protocols to protect your home’s electrical and landscaping systems.
We evaluate siding integrity, window seals, masonry condition, and oil stain depth. You receive a firm upfront price with zero unexpected post-job fees.
All exterior GFCI outlets, security cameras, and keypads are taped. Surrounding shrubs, flowers, and turf are pre-saturated with clean water to prevent chemical absorption.
Low-pressure soft-wash applied to painted and roof surfaces; 4,000 PSI high-velocity surface scrubbing applied to hard concrete. Detergents dwell to eliminate bacteria roots.
We conduct a 360-degree perimeter walk alongside you. We do not accept final payment or depart until you are completely satisfied with the restored result.
Real Stegmeier Jobs
A concrete tile roof we soft washed in Arlington. See our tile roof cleaning page for more.
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AfterConcrete tile roof soft wash, Arlington, TX

Tips and answers from our Arlington crew. See all articles.
What homeowners ask before booking a roof cleaning.
Most black streaks are caused by an algae called Gloeocapsa magma. It spreads across shingles and gets darker over time if it is not treated.
No. High pressure damages shingles. We use a low-pressure soft wash that kills the algae and rinses it away safely.
We pre-wet and rinse plants and landscaping around the home to protect them during the cleaning.
Because a soft wash kills algae at the root, results usually last much longer than a simple rinse. Shaded roofs may need treatment more often.
Most roofs fall between $750 and $1,050 ($0.30 to $0.35 per sq ft) depending on size, pitch, and staining. We give free, exact quotes.
Get the details, pricing, and FAQs for each service, or find your city below.
Services: House Washing · Soft Washing · Roof Washing · Driveway & Concrete Cleaning · Patio & Paver Cleaning · Gutter Cleaning · Window Cleaning · Fence Washing · Commercial & HOA · Tile Roof Cleaning · Stone & Brick Cleaning · Rust Stain Removal · Oil Stain Removal · Efflorescence Removal · Fence Staining · Deck Cleaning · Gutter Brightening · Before & After Gallery · FAQ · Packages
Service areas: Arlington · Fort Worth · Dallas · Irving · Grand Prairie · Mansfield · Burleson · Southlake · Keller · Grapevine · All service areas
Call owner James Stegmeier directly. We frequently schedule multi-property runs across adjacent DFW neighborhoods.