From Baywood's shaded shingle roofs to tile in San Mateo Park, roof growth here follows the trees — and San Mateo has plenty. Our soft wash kills moss and algae at the root instead of blasting the surface, which is why the results hold 2–3 years instead of one season.
Your request is on its way to Nick. We'll be in touch within 24 hours.
Real before & afters from this service across the Peninsula.
We soft wash exclusively on roofing — low pressure, biodegradable detergent, and dwell time that kills moss, algae, and lichen at the root instead of blasting it off the surface. High pressure strips shingle granules and cracks tile, which is why we never use it up there.
Every roof job includes clearing valleys and ridge lines of debris, checking flashing and visible penetrations, and photographing the finished work. Results typically last 2–3 years.
San Mateo specifics: San Mateo runs the full range — downtown bungalows, Baywood and Aragon's tree-lined streets, Hillsdale ranches — and the mix of stucco, wood siding, and older brick keeps every job a little different. We work Baywood, Aragon, San Mateo Park, Hillsdale, and Shoreview regularly.
Common Burlingame service calls: moss removal from shaded roofs, brick walkway restoration in Burlingame Park, driveway cleaning in Easton Addition, and gutter clearing across the whole city after the rainy season.
Moss, algae, lichen and the black streaks on shingle, tile and cedar roofs — removed at the root with low-pressure soft washing. Never a pressure washer on a roof.
Exterior house washing for stucco, wood, Hardie and painted siding. Green algae, black mildew and roofline grime gone — the result of a power wash without the damage.
Hot-water pressure washing that lifts oil, algae, moss and years of grime from concrete, brick, pavers, exposed aggregate and stone — without stripping the surface.
Gutters cleared by hand, every downspout flushed until it runs clear, and a look at the hardware for sagging, pulled spikes or separated seams. Book before the rains.
Our roof had moss so thick you couldn't see the tile. Nick's crew treated it, explained everything, and it still looks clean two years on.
We keep the back-and-forth to a minimum and the communication clear. Here's what working with us looks like.
Call, text, or fill out our form. We respond within 24 hours with a clear, itemized quote.
For larger jobs, we walk the property with you to confirm scope, materials, and the best method.
On time, in uniform, with professional gear. Landscaping protected, neighbors respected.
We walk the finished job with you. If anything's not right, we fix it then and there.
Most San Mateo roofs run from a few hundred dollars for a single-story to over a thousand for large, steep, or estate roofs. Size, pitch, material, and moss coverage set the price. Quotes are free and back within 24 hours.
Yes — it's the manufacturer-recommended method for shingle and tile alike. Low pressure plus the right detergent kills growth at the root without stripping granules or cracking tile.
Typically 2–3 years. Heavily shaded San Mateo roofs under tree canopy trend toward the shorter end.
Increasingly yes — California insurers review aerial imagery, and visible moss can trigger non-renewal. A soft wash returns the roof to insurable condition.
Yes, and it’s one of our most common San Mateo calls. We clean the roof with a method matched to the material, photograph it before and after, and give you a written service record for your agent. Details on our insurance roof notice page. Your carrier decides what satisfies its requirements.
A roof algae called Gloeocapsa magma. It feeds on the limestone in asphalt shingles and spreads downhill with rain, which is why it starts on the shaded side. Soft washing kills it at the root. A pressure washer smears it and strips granules, so we never use one on a roof.
Free estimate within 24 hours. No pressure, no upsell, just a straight answer on what it'll cost and when we can start.
Questions? Email us anytime: pressurewashbynick@gmail.com