Roof Cleaning Services

Professional Roof Cleaning & Soft Washing

Capps Power Washing provides professional roof cleaning for asphalt shingle roofs, metal roofs, and exterior roofing surfaces throughout Stroudsburg, Easton, Bethlehem, Saylorsburg, Monroe County, the Lehigh Valley, and nearby New Jersey.

Asphalt roof cleaning is focused on treating black streaks, algae, moss, lichen, and organic staining. Metal roof cleaning is different and usually focuses on pollen, gray film, dirt, oxidation-like buildup, environmental staining, and organic residue.

Instant before and after asphalt shingle roof cleaning in Easton PA by Capps Power Washing
Instant before and after roof soft washing result on asphalt shingles in Easton PA.
Asphalt ShinglesSoft wash cleaning
Metal RoofsHigher safety pricing
Gutters RequiredMust be flowing
No High PressureRoof-safe process

Roof Cleaning Results & Project Showcase

These photos show real roof washing projects completed by Capps Power Washing. Some asphalt shingle roofs show a major instant improvement the same day, but the full roof cleaning result can continue improving over the next 5–6 months as remaining dead moss, lichen, and organic staining naturally releases with rain and weather.

Asphalt Shingle Roofs vs. Metal Roofs

Different roof materials need different expectations, pricing, and cleaning methods. A professional roof cleaner should know the difference between algae streaks on shingles and buildup on metal roofing.

Asphalt Shingle Roofs

Asphalt shingles commonly develop black streaks from algae, along with moss, lichen, and organic staining. These roofs are cleaned with a soft wash method, not high pressure.

Metal Roofs

Metal roofs often collect pollen, gray film, mildew, dirt, and environmental buildup. They are usually more expensive because they can be extremely slippery and require more setup and caution.

Pricing Expectations

Shingle roofs are usually cheaper than metal roofs because the cleaning process is more predictable. Metal roofs may cost more depending on pitch, access, oxidation, height, and safety concerns.

Our Roof Washing Process

  1. Inspect roof type, pitch, access, buildup, gutters, landscaping, and runoff areas.
  2. Confirm gutters are free flowing or recommend gutter cleaning before the roof wash.
  3. Protect plants, landscaping, siding, windows, and sensitive areas around the home.
  4. Apply a professional sodium hypochlorite based soft wash solution at the proper strength.
  5. Allow proper dwell time so algae, moss, lichen, and organic buildup can be treated.
  6. Rinse when needed, or allow rain-assisted rinsing depending on roof type and conditions.
  7. Complete a final property rinse and walkaround.

Yes, We Use Sodium Hypochlorite

Sodium hypochlorite is the active ingredient used in professional soft washing because it treats the organic growth causing black streaks, algae, moss, lichen, mildew, and roof staining.

The strength of the mix depends on the roof material, buildup level, weather, plants, runoff, and safety concerns. The goal is not to pressure wash the roof — the goal is to chemically treat the organic growth safely and professionally.

Gutters Must Be Free Flowing

Roof cleaning requires gutters to drain properly. If gutters are packed with debris, the runoff cannot move correctly and may overflow in the wrong areas. If needed, we can clean gutters before or during the roof cleaning service.

Instant Results vs. Final Results

A lot of customers expect every roof to look brand new the same day. Some roofs do show a dramatic instant result, especially algae streaking on asphalt shingles. However, moss, lichen, and heavier organic buildup can take time to fully release.

Same-Day Improvement

Black streaks and algae staining on asphalt shingles often lighten quickly after treatment. Many roofs look significantly better before we even leave the property.

5–6 Month Final Result

The real final result can continue improving over 5–6 months as dead moss, lichen, and deeper organic growth breaks down and rinses away naturally with rain and weather.

Honest Expectations

Roof cleaning is not always instant perfection. We explain the process clearly so homeowners know what to expect the same day and what continues improving over time.

Frequently Asked Roof Cleaning Questions

Do you pressure wash asphalt shingle roofs?

No. Asphalt shingles should not be pressure washed. We use a soft wash method designed to treat algae and staining without damaging the roof.

Why do asphalt roofs get black streaks?

Black streaks are usually algae growth. Moisture, shade, humidity, and tree coverage make roof staining common in Pennsylvania and New Jersey.

Do metal roofs clean the same as shingles?

No. Metal roofs are different. They often have pollen, gray film, dirt, mildew, oxidation-like buildup, or environmental staining rather than black algae streaks.

Why are metal roofs more expensive to clean?

Metal roofs can be extremely slippery and usually require more safety planning, setup time, and caution. Pitch, access, height, and surface condition all affect pricing.

Do gutters need to be cleaned first?

Gutters need to be free flowing for roof cleaning. If they are clogged, we may recommend gutter cleaning so runoff drains properly during the roof wash.

Will the roof look perfect the same day?

Some roofs show a dramatic same-day change, especially asphalt shingle roofs with algae streaking. Moss, lichen, and heavier growth may continue improving for 5–6 months after treatment.

Ready To Clean Your Roof?

Get a free quote for roof cleaning, asphalt shingle soft washing, metal roof cleaning, black streak treatment, gutter cleaning, house washing, and full exterior cleaning.