Warranty Safe
Our no-pressure method follows ARMA and shingle manufacturer guidance, so your roof warranty stays intact and documented.
Our Services
Jacksonville Roof Cleaning
Professional roof soft washing for homes across Jacksonville and Duval County. Those black streaks are living algae, not dirt — we kill them with a no-pressure treatment that meets manufacturer guidance and leaves your shingle warranty intact.
Roof Soft Washing, Never High Pressure
The dark streaks running down Jacksonville roofs are Gloeocapsa magma, a hardy blue-green algae that feeds on the limestone filler in asphalt shingles. It is a living organism, not dirt, which is why rinsing does nothing and why it always comes back on roofs that were only surface-cleaned.
Left alone it spreads across the slope, holds moisture against the shingle and slowly degrades the mat underneath. In our climate that shortens roof life measurably — and a roof replacement in Jacksonville runs many multiples of what a clean costs.
Pressure washing a roof is worse than leaving it dirty. A high-pressure tip strips the protective granule layer off asphalt shingles, and once those granules are gone the shingle has lost its UV protection and begins failing quickly. It also voids most manufacturer warranties outright, which homeowners usually discover only when they try to claim.
We use the soft wash method the Asphalt Roofing Manufacturers Association recommends: a cleaning solution applied at roughly garden-hose pressure that kills the algae at the root, followed by a gentle rinse. Results appear within minutes and continue improving over the following weeks as the dead growth weathers off.
Never let anyone put a pressure washer on an asphalt roof. If the granules come off, the shingle is finished — and the manufacturer warranty went with them.
Why It Matters
Why Jacksonville Homeowners Choose Professional Roof Cleaning
What you actually get from having this done properly, by a Jacksonville crew that does it every day.
Kills Algae at the Root
We treat the organism rather than rinsing the surface, so the black streaking does not simply reappear after the next Jacksonville downpour.
Extends Roof Life
Removing algae stops it holding moisture against the shingle mat — a leading cause of premature roof failure in humid Florida conditions.
Eco-Friendly Treatment
Biodegradable solutions, landscaping pre-wet and protected, and runoff considered — this is the St. Johns River watershed.
Licensed & Insured
Fully licensed and insured for work at height across Duval County, with certificates provided before we set foot on your property.
Free On-Site Estimates
We assess pitch, access and how far the algae has spread in person, then give you a fixed written price with no obligation.
Local Conditions
What Jacksonville's Climate Does to Your Roof
Jacksonville sits in one of the worst regions in the country for roof algae. Over 50 inches of annual rainfall, summer humidity above 70% and mild winters mean Gloeocapsa magma never gets a dormant season. Roofs here typically start streaking within three to five years of installation.
Tree cover makes it markedly worse. Live oaks shade slopes so they stay damp for hours after rain, and they drop leaves, catkins and tannin-heavy debris into valleys year-round. Properties in Mandarin, Avondale and Orange Park under mature canopy tend to need attention soonest, while homes in Atlantic Beach, Neptune Beach and Ponte Vedra carry the added burden of airborne salt.
Black Streaking
The classic Jacksonville roof complaint. Dark vertical streaks are algae colonies feeding on shingle limestone, always worst on the north-facing slope that dries slowest.
Moss & Lichen
Under heavy oak shade, moss and lichen take hold in the shingle joints. Lichen roots into the mat itself and needs treating, never scraping.
Granule Loss
Granules in your gutters signal shingle wear. It is usually age or previous high-pressure cleaning — which is exactly why we never use pressure on a roof.
Clogged Valleys
Oak leaves and pine needles pack into roof valleys and behind chimneys, holding water where it should be running off and staining the shingle below.
Salt Air Weathering
Roofs in Atlantic Beach, Neptune Beach and Ponte Vedra collect airborne salt that dulls surfaces and accelerates corrosion of flashing and fasteners.
Storm Debris
Hurricane season leaves grit, branches and shingle fragments across Jacksonville roofs. Left in place it traps moisture and hides damage that should be found early.
Method Matters
Soft Washing vs Pressure Washing for Roofs
On a roof this is not a judgement call. One method is recommended by shingle manufacturers; the other voids their warranty.
Roof Soft Washing
- Runs at roughly garden-hose pressure — around 100 PSI
- Kills Gloeocapsa magma algae at the root
- Leaves the protective granule layer completely intact
- The method the Asphalt Roofing Manufacturers Association recommends
- Results typically last three to five years in Jacksonville
- Keeps your shingle manufacturer warranty valid
High-Pressure Washing
- Runs at 2,000–4,000 PSI — enough to strip shingle granules
- Removes the UV protection the granules provide
- Voids most shingle manufacturer warranties outright
- Can lift and break the seal between shingle courses
- Drives water up under courses and into the roof deck
- Only removes surface growth, leaving living spores behind
When a Roof Should Not Be Cleaned
- Roofs with active leaks — the leak needs repairing before any water is introduced.
- Shingles already shedding granules heavily, where the roof is near end of life anyway.
- Brittle or cracked concrete and clay tile that cannot safely bear foot traffic.
- Immediately before a storm, when solutions will not get their required dwell time.
- Roofs with loose or lifted flashing, which should be secured first.
- Any roof where a contractor proposes walking a steep pitch without fall protection.
What You Get
What's Included in Every Roof Cleaning Visit
No upsells on the day and no surprises on the invoice — this is the standard scope of work.
- Roof condition assessment and photographs before we begin
- Pitch and access checked, with fall protection where needed
- Landscaping and shrubs pre-wet and covered
- No-pressure soft wash solution applied across all affected areas
- Correct dwell time so the algae is killed, not just wetted
- Gentle rinse that leaves the granule layer untouched
- Valleys and behind-chimney debris cleared
- Before-and-after photographs sent on completion
Surfaces We Handle
Asphalt Shingle
The Jacksonville standard. Soft wash only — pressure strips granules and voids the warranty.
Architectural Shingle
Thicker and more textured, so algae hides deeper. Needs proper dwell time rather than more force.
Concrete & Clay Tile
Durable but brittle underfoot. Treated from ladders and walk boards to avoid cracking.
Metal Roofing
Cleans well; we use finishes that will not corrode fasteners or dull the coating.
Flat & Low-Slope
Common on additions and commercial units. Drainage is checked as part of the visit.
Cedar Shake
Rare here and very soft. Cleaned almost entirely chemically at minimal pressure.
How It Works
How an Exterior Clean Works,
Step by Step
From the first walk of the property to the last pass, here is what actually happens and why each step is there.
01
Estimate and Surface Assessment
We look at the property, identify every surface and its condition, and work out the method for each. That includes flagging anything that will not fully come out, before we quote, not after.
02
Protecting Plants, Electrical and Fixtures
Plants and beds get soaked with plain water first, so the first thing they take up is water rather than product, and they get covered on hot days. Outlets, meters and exterior fixtures are taped. This step is the difference between a clean house and a clean house with a dead hedge.
03
Chemical Application and Dwell Time
The cleaning solution goes on at low pressure and is left to work. Dwell time is what actually does the cleaning, and it varies with temperature — the same mix works faster on a warm afternoon than it does in January. Rushing this step is the most common reason a wash comes out patchy.
04
Rinse and Post-Treatment
Everything is rinsed at a pressure appropriate to the surface. On concrete and other flatwork, a light post-treatment goes down afterwards. It is the step you cannot see, and it is why a professionally cleaned driveway stays clean for months rather than weeks.
05
Final Walkthrough
We walk the property with you before we pack up. If something needs another pass, it gets another pass.
Pricing
Jacksonville Roof Cleaning Pricing
Typical Jacksonville pricing so you can budget before you call. Every job is confirmed with a fixed written quote after a free on-site estimate.
Single Story
One-storey roof up to roughly 2,000 sq ft of surface.
$299per roof
Final price confirmed after a free on-site estimate.
- Full soft wash treatment
- Landscaping protection
- Valleys cleared
- Gutter faces rinsed
- Before/after photos
Most Popular
Two Story
Two-storey or steeper-pitch roof up to roughly 3,500 sq ft.
$449per roof
Final price confirmed after a free on-site estimate.
- Everything in Single Story
- Extended-reach equipment
- Full valley treatment
- Downspouts flushed
- Condition report
Roof & Gutters
Roof soft wash plus complete interior gutter clearing.
$599bundle
Final price confirmed after a free on-site estimate.
- Everything in Two Story
- Gutters cleared inside
- Drainage tested
- Single-visit scheduling
- Priority booking
Expert Advice
Expert Tips from Our Jacksonville Roof Crew
Advice from a decade of soft washing roofs in this climate — including the things that will save you money whether or not you hire us.
Treat Streaking Early
Algae is far cheaper to remove at the first faint streak than after it has covered a slope. Early treatment also means less solution and a shorter visit.
Trim Overhanging Branches
Live oak limbs over the roof keep slopes damp and drop tannin-heavy debris constantly. Cutting them back is the single best thing you can do between cleans.
Consider Zinc or Copper Strips
A strip fitted near the ridge releases trace metal ions each time it rains, which suppresses algae down the slope. It is not a substitute for cleaning, but it slows regrowth.
Never DIY on a Wet Roof
Wet shingles and algae are genuinely dangerous underfoot, and most homeowner roof injuries in Florida happen on ladders. This is not the job to save money on.
Check Your Gutters for Granules
A gritty sludge in the gutters means the shingles are shedding. If you find it, get the roof assessed before booking a clean — cleaning will not fix a worn roof.
Inspect After Every Storm Season
Jacksonville storms lift shingles and pack valleys with debris. A look each autumn catches small problems while they are still cheap to fix.
FAQ
Roof Cleaning Questions
The questions Jacksonville homeowners ask us most about this service, answered straight.
Still Have Questions?
Call us or send a message — we will give you a straight answer, whether or not it leads to a booking.
Call NowMost Jacksonville roof cleanings run $299 to $599. A single-storey roof is typically $299, a two-storey roof around $449, and bundling gutter clearing brings it to about $599. Pitch, height, access and how far the algae has spread are the main variables. Every quote is fixed in writing after a free on-site estimate.
Not the way we do it. We never use high pressure on a roof. Our soft wash applies the cleaning solution at roughly garden-hose pressure, which leaves the protective granule layer completely intact. It is the method the Asphalt Roofing Manufacturers Association recommends, and it is what keeps your warranty valid.
They are Gloeocapsa magma, a blue-green algae that feeds on the limestone filler in asphalt shingles. It is a living organism rather than dirt or mildew, which is why rinsing does not remove it and why it returns on roofs that were only surface-cleaned. Killing it at the root is the only lasting fix.
Typically three to five years in Jacksonville, depending on shade and tree cover. Because we kill the algae rather than rinse it off, regrowth is slow. Roofs heavily shaded by live oaks in areas like Mandarin or Avondale tend to be at the shorter end of that range.
No. Pressure washing would, which is precisely why we do not do it. Our no-pressure soft wash follows manufacturer guidance, and we document the method used so you have a record if your warranty provider ever asks.
Every three to five years for most Jacksonville homes. Roofs under heavy oak canopy or on shaded north-facing slopes often need it closer to every three. If you can see streaking from the kerb, it is already well established and worth booking.
We cover all of Jacksonville and Duval County, including Riverside, Avondale, San Marco, Mandarin, Arlington, Southside, Springfield and Murray Hill, plus Atlantic Beach, Neptune Beach, Jacksonville Beach, Ponte Vedra and Orange Park. If you are just outside those areas it is still worth asking.
Service Area
Roof Cleaning Across Jacksonville
We cover all of Jacksonville and Duval County, from the historic districts to the beaches. If your neighbourhood is not listed, it is still worth asking.
- Jacksonville
- Riverside
- San Marco
- Mandarin
- Orange Park
- Atlantic Beach
- Neptune Beach
- Jacksonville Beach
- Ponte Vedra
- Southside
- Arlington
- Westside
- Northside
- Avondale
- Murray Hill
- Springfield
Browse All Service Areas
Not sure if we reach you? Get in touch and we will tell you straight away.
Related Services
Often Booked Together
Bundling services into one visit saves you a second call-out and usually costs less overall.
House Washing & Soft Washing
Low-pressure cleaning for vinyl, stucco, brick, fiber cement and painted wood, including soffit, fascia and gutter exteriors.
See Pricing →
Gutter Cleaning & Brightening
Two different jobs: clearing debris from inside the gutter, and removing the black striping from the outside.
See Pricing →
Driveway & Concrete Cleaning
Driveways, sidewalks, walkways, garage floors and entryways cleaned with a surface cleaner for an even finish, then post-treated.
See Pricing →
Get a Free Estimate
Tell us the address, roughly what needs cleaning, and when suits you. We will come out, look at the actual surfaces and give you a written price before any work starts.
Call Now