Black streaks. Algae growth. Moss patches in shaded spots. Jacobson's removes them with the soft wash method recommended by asphalt shingle manufacturers — no granule loss, no warranty void, results that last 4 to 6 years.
Cleaning a roof properly takes more than a pressure washer and a ladder. It takes the right chemistry, the right pressure, the right technique — and a track record of getting it right.
Roof-specific work for asphalt shingle, tile, and metal roofs. Each service uses the right method for the surface — soft washing where it matters, never pressure that strips granules.
The flagship service. Black streaks (Gloeocapsa magma), green algae, and surface mildew all killed at the cellular level by a low-pressure soft wash. Results last 4–6 years.
Read the method →
Heavy moss and lichen patches on shaded sections need specific treatment — chemistry that breaks lichen's chemical bond with the shingle before rinse-down.
Moss removal details →
For homes in heavy-tree-cover neighborhoods that regrow fast. Scheduled re-treatments at the right interval (typically every 3–5 years) to keep things ahead of regrowth.
See our frequency guide →
A neglected roof isn't just a cosmetic issue. The black streaks you see are colonies of Gloeocapsa magma — bacteria that feed on the limestone filler in asphalt shingles and slowly degrade them over time. Moss colonies lift shingle edges and let water under. Lichen breaks down the surface.
The right cleaning method preserves shingle life, prevents premature replacement, and restores the curb appeal that affects your home's value. The wrong method — pressure washing — strips the granules that protect your roof and can void the manufacturer's warranty entirely.
Compare the math: a typical roof clean in Richmond costs $400–$1,500. A premature roof replacement runs $8,000–$25,000+. The cleaning pays for itself many times over by extending the roof's useful life.
Four steps from first call to final walkthrough. No surprises, no hidden costs, no upsells.
We come to the property, walk the roof, identify what's growing and where. You get a clear written quote — no hidden costs, no per-square-foot guesses over the phone.
Soft washing needs a few hours of dry conditions after application. We coordinate around the forecast. Most Richmond jobs schedule within a week.
Landscape pre-wet, solution applied at low pressure (under 100 PSI — closer to garden-hose pressure), 10–20 minute dwell time while the chemistry kills the colony.
Low-pressure rinse from ridge to eave, full landscape rinse-down, then a final walkthrough with you to confirm everything looks right.
Real reviews from local customers across Richmond, Midlothian, Glen Allen, and surrounding neighborhoods.
"The black streaks on our roof had been there for years. Jacobson's came out, walked the roof with me, gave me a flat-rate quote that didn't change, and a week later the roof looked brand new. Honest, on-time, exactly what they said they'd do."
"Picked Jacobson's because they were the only company that explained the soft wash method instead of just trying to sell me pressure washing. Roof looks great, no damage to landscaping. Will use again."
Jacobson's Power Washing is a locally owned company serving homeowners throughout Richmond, VA and the surrounding areas. We know this region because we live and work here — Richmond's hot, humid summers, shaded yards, and tree-heavy neighborhoods create the conditions that cause black roof streaks, moss, and algae growth.
We work across residential soft washing and full house pressure washing — and on every roof we apply the safe, low-pressure soft wash method that kills algae and moss at the source without damaging shingles.
From the Fan to Short Pump, Midlothian to Glen Allen, and everywhere in between, we provide professional roof cleaning that protects your shingles and your home's value.
Free, no-obligation roof assessment. Written quotes within 48 hours. Same crew every visit. Insured, locally owned, and proud of our Richmond reputation.
