Roof cleaning in Granite Bay
Big oak canopy, big roofs, and the shade that feeds growth
Cable Pressure Washing and Solar Panel Cleaning takes roof cleaning requests across Granite Bay as part of our Placer County roof cleaning service. A trusted local roofing partner does the roof work, and you get one quote from Cable. We are a father-and-son team based in Rocklin, minutes down Douglas Boulevard. We take roof requests from Los Lagos and Wexford to Ashley Woods and the streets around Granite Bay Golf Club.
The black streaks on those roofs are organic growth, a roof algae called Gloeocapsa magma, technically a cyanobacteria often mistaken for a fungus or mold. It will not rinse off in winter rain. Granite Bay's larger lots and mature oak canopy add to the problem: shade holds moisture longer, and falling leaves and debris give the growth something to feed on. Here is the right way to deal with it, and what it costs.
The method
Soft wash only. Never high pressure.
A roof is the one surface where pressure washing does real damage. High pressure strips the protective granules off asphalt shingles and can crack concrete and clay tile, and either one shortens the life of the roof you are trying to protect. That is why a roof should get a soft wash: a low-pressure cleaning solution that kills the algae, moss, and lichen instead of blasting at the stains they leave.
Because the treatment attacks the growth itself, the roof does not just look better, it stays cleaner longer than a surface-level rinse could manage. A soft wash keeps working after it goes on, killing the growth over days and weeks while the weather carries the dead material off. The full method is covered on our roof cleaning service page, and the science of the streaks lives in the black streaks on roof guide.
What it costs
How your roof quote comes together
You send your roof details to Cable, and we share them with our trusted local roofing partner. Most roof jobs fall between $500 and $2,000. Cable and the partner build the exact quote together, and you get it in writing from Cable before any work starts.
| Service | Rate | Typical range |
|---|---|---|
| Roof cleaning (done by our roofing partner) | $500–$2,000 for most roofs | Exact price in one written quote from Cable |
| Gutter cleaning add-on | $1.00/lin ft single-story · $2.00/lin ft two-story | $200 minimum |
| Gutter brightening | Discounted add-on with gutter cleaning | |
Pricing current as of August 2026.
Want a number without a phone call? The cost calculator gives you an instant range, and bundling your roof with other surfaces on the same visit saves about 10%.
Local knowledge
Oak canopy, large lots, and roofs that need it more often
Granite Bay sits where the Sacramento Valley meets the first Sierra foothills, and the mature oak canopy across Los Lagos, Wexford, Ashley Woods, and the streets around Granite Bay Golf Club is the defining feature of the area's roofs. Large tile roofs on large lots sit under that canopy for years, and shade plus falling leaf and twig debris is exactly the combination that lets moss and black algae establish themselves faster than on an open, sun-exposed roof.
Tile under the oaks
Concrete tile is the dominant roofing material on Granite Bay's larger homes, and tile holds growth in its channels and overlaps longer than shingle does. Careless foot traffic cracks tiles, which is why growth should be treated with a soft wash rather than scrubbed or blasted off.
Shingle roofs and metal roofs
Composition shingle shows streaks sooner and darker, usually on the north-facing slope where shade holds moisture longest. The granule surface is exactly what high pressure destroys, which is why the soft wash matters most here. Metal roofs can be soft washed as well, with the same low-pressure method.
Roof maintenance pays twice under this much canopy: a roof cleaned before moss roots deep and before roof debris packs the valleys needs less of everything later, and mildew, mold, and lichen never get the foothold that turns a wash into a repair bill.
While we're here
Gutters are the natural add-on
Our own crew handles gutter cleaning, and it matters here, because the same oak leaves packing the roof valleys are packing the gutters too. Gutter cleaning runs $1.00 per linear foot on single-story homes and $2.00 per linear foot on two-story homes with a $200 minimum, covered in detail on our gutter cleaning in Granite Bay, CA page. If the faces of your gutters carry black tiger stripes that a wash will not lift, that is oxidation. Gutter brightening removes it, quoted as a discounted add-on when our crew is already on site for your gutters. Honest test first: if the striping comes off with a normal wash, we tell you to skip the brightening.
Solar on the roof? Our solar panel cleaning is done by our own crew, and they look over your roof and gutters at no charge while they are up there.
Who you're hiring
Insured, honest about scheduling, local
For exterior cleaning work in California no contractor license is required, so the words that actually protect you are the insurance ones. Cable carries liability insurance on every job, and if your HOA wants proof for our gutter or solar work, we send our certificate the same day. Your roof quote arrives in writing before any work starts.
Every inquiry gets a reply the same day. That is a commitment, not a goal, and it matters most on gated streets where scheduling has to work around gate codes and HOA rules; tell us at booking and we plan for it.
Service area
Serving all of Granite Bay
Los Lagos, Wexford, Ashley Woods, the streets around Granite Bay Golf Club, and every neighborhood in between: we take roof cleaning requests across the whole area. Everything else we do in Granite Bay, from house washing to gutters to solar, is on our Granite Bay pressure washing page, and we take requests for roof cleaning in Rocklin and roof cleaning in Roseville next door.
Next step
Getting a number from us
Call or text (916) 751-1775 with your address and we will reply the same day. Prefer it in writing? Start at the quote page and we will send one written quote for your roof.
- Same-day reply on every inquiry
- Free written estimate before you book
- A service-area business based in Rocklin, covering Granite Bay
Common questions