Roof Cleaning (Soft Wash) in Jacksonville, FL
Those black streaks are not dirt, they are a living organism called Gloeocapsa magma, and pressure washing your shingles is the wrong way to remove it. We use a low-pressure soft wash so your roof gets clean without voiding your manufacturer warranty.
What Is Roof Soft Washing?
Soft washing is the industry-recommended method for asphalt shingle, tile, and metal roofs in Jacksonville, FL and across Duval County. We apply a biodegradable cleaning solution at low pressure, let it dwell long enough to kill algae, moss, and lichen at the root, then rinse gently from the ground or a low-impact setup. Most roofs are done in two to four hours, and every job starts with a free, written assessment so you know the price before any work begins.
What Gloeocapsa Magma Actually Is
Those black streaks running down your shingles are a cyanobacteria called Gloeocapsa magma, not soot, mildew, or dirt. It feeds on the limestone filler in asphalt shingles and spreads from roof to roof on the wind, which is why entire neighborhoods often develop streaking around the same time. It thrives in Jacksonville’s heat and humidity, and left alone it will shorten the life of your shingles.
- Soft washing kills it at the root instead of just blasting the surface
- High-pressure cleaning strips the protective granules off your shingles
- Most shingle manufacturers require low-pressure cleaning to keep your warranty valid
Every Roof Wash Includes
Full Roof Inspection
We check for loose or damaged shingles, flashing issues, and moss buildup before we start.
Low-Pressure Soft Wash
A biodegradable solution is applied and given dwell time to kill algae, moss, and lichen at the root.
Landscaping Protection
Plants and gutters are pre-rinsed or covered so runoff does not damage what is below.
Warranty-Safe Method
Our process follows manufacturer guidelines for GAF, CertainTeed, and Owens Corning shingles.
What Does Roof Soft Washing Cost?
Roof soft washing in Jacksonville typically starts around $350 and scales with roof size, pitch, and how much algae or moss buildup has to be treated. See our full pricing guide for ranges across every service, or request a free written estimate below.
Roof Cleaning Questions
Ready for a Roof That Looks New Again?
Call (904) 938-2244 or request your free estimate below. Call (904) 938-2244 or request your free estimate below for a low-pressure soft wash that is safe for your shingles and your warranty.