Roof Cleaning In Charleston, SC

Keep Charleston's Humidity from
Taking Over Your Roof

A Charleston roof lives right on the coast, which means it takes constant salt-air exposure that roofs a few hours inland never have to deal with. That salt, paired with the moisture in the air, gives algae and mildew a steady foothold up top, and it’s a big part of why cleaning a coastal roof is a different job than cleaning one anywhere else. The thing most homeowners get wrong is the method. Almost everyone assumes a roof gets cleaned the same way a driveway does, with high-pressure blasting the surface until it’s clean.
We never put high pressure on a roof. Instead, we soft wash, using the proper chemicals and procedure to clear the algae and mildew without damaging a single shingle. It’s the approach that keeps a roof intact while still getting it fully clean, and it’s how Seaside Pro Wash handles every roof we touch.
To talk through your roof or get on the schedule, give us a call at (843) 790-4298.

The Roof Types We
Clean in Charleston
We soft wash both of the roof types most common around here, and we adjust the approach to match the material so each one gets cleaned safely.
Asphalt Shingle
Roofs
Asphalt shingle is the roof most Charleston-area homes have, and it’s the surface that shows the algae and mildew the most. We soft wash it at low pressure, 300 PSI or less, with a diluted cleaning solution, never high pressure, so the shingles stay put and undamaged. The chemistry does the real work of clearing the growth; we rinse the roof rather than blast it.

Metal
Roofs
Metal roofs get soft washed too, with the proper solution and the same low-pressure principle. The difference is in the mix: metal gets more dilution and more rinsing than a shingle roof, which protects the finish and the coating while still lifting the algae and mildew off. Different material, same goal: clean without causing damage.

Why Charleston Homeowners
Choose Us for Roof Cleaning
Letting someone up on your roof takes some trust, so here’s what stands behind ours.

Low-Pressure Soft Wash That Won't Damage Your Roof
We use low-pressure soft washing, 300 PSI or less on roofs, and heavily diluted, plant-conscious solutions, so surfaces get clean without getting damaged. That matters because high pressure can strip the granules off shingles and force water where it doesn’t belong. Metal roofs get the extra dilution and rinsing for the same reason: get it clean, leave it intact.

We Inspect Your Roof Before We Clean It
Before any solution goes down, we look the roof over for problems like loose or lifting shingles or a flashing issue. If we spot something that needs a repair, we tell you before we start, not after. You get an honest heads-up instead of a surprise, and you decide how you want to handle it.

Licensed and Insured for Work at Height
Roof cleaning means ladders, heights, and a crew moving around on your property. We’re fully licensed and insured, so your property is protected from the first rinse to the final walkthrough. When the work happens up top, that coverage is the difference that lets you relax while we do it.

A Local Charleston Crew That Knows Lowcountry Roofs
We’re a locally owned Charleston company, and we see every day what the area’s humidity and salt air do to the roofs around here. That means we clean with the local conditions in mind rather than treating your roof like it’s sitting somewhere dry and inland. It’s your neighborhood, and it’s ours too.
See What Professional
Roof Cleaning Can Do

How Our Roof
Cleaning Process Works
From your first call to the finished job, here’s how window cleaning goes.
Your Free
Estimate
Reach out by phone, online, or ask us to come take a look in person. We assess the roof, its size, its pitch, and how much growth has built up, and for larger or more complex roofs, we come out and inspect the property firsthand. From there, you get a free quote covering the scope of the job and what to expect.
Scheduling
the Job
Once you approve the estimate, we book the job and confirm the date with you. Roof work is weather-dependent, so if heavy weather rolls in, we pause the outdoor work and reschedule as needed rather than push through conditions that aren’t safe or effective.
Roof Inspection
and Heads-Up
Before we clean, the crew inspects the roof for damage, things like loose or blue shingles and flashing issues. If a repair is needed, we let you know before we proceed. We clean roofs; we don’t do roof repairs, so we flag the issue and leave it in your hands to address.
The Soft
Wash
This is the core of the job. We work at low pressure, 300 PSI or less, never high pressure. The crew rinses the roof, applies the diluted cleaning solution, lets it do its work, then rinses it back off. Metal roofs get more dilution and more rinsing than shingles. Our crew typically walks the roof using proper footwear and safety gear, running soft-wash equipment rated at 300 PSI or less along with diluted chemicals, ladders and stabilizers, harnesses, and specialized boots.
Walkthrough
and Invoice
When the work is finished, we walk the completed job with you so you can see the result up close. We invoice after the job is done and you’re satisfied with how the roof turned out, not before.

Roof Cleaning Pricing
in Charleston
Every roof is quoted according to the work involved. Size, pitch, height, accessibility, and the amount of organic growth all affect the final price, with most cleanings taking about two to four hours.
- Roof Cleaning Starting at $450. The base price generally applies to smaller, straightforward roofs. Larger, steeper, multi-story, or more complex roofs cost more, with the biggest projects reaching around $3,000.
- Bundle and save. Book roof cleaning alongside other residential services, and it's 5% off for two services, 10% off for three or more services, so pairing your roof with a house wash, or your roof with a house wash and gutters, brings the whole visit down.
Our Roof
Cleaning Guarantee
We don't put a warranty on roof cleaning, but we stand behind the work, and if you're not happy, we'll make it right. There's no formal coverage window, and we won't pretend otherwise; what you get instead is a straightforward promise that if something about the finished job isn't right, you let us know and we come back out to fix it.
What
Customers Say

Roof Cleaning
FAQs
Do you pressure wash my roof?
No, we soft wash roofs and never use high pressure on one. We clean at 300 PSI or less using the proper chemicals and procedure, which clears the algae and mildew without damaging the roof. It’s the single most common question we get about roof cleaning, and the answer holds for both shingle and metal roofs.
How often should I have my roof cleaned?
We recommend a roof cleaning every three to five years for most Charleston-area homes. The Lowcountry’s humidity and salt air feed the organic growth, so roofs here often need attention on the sooner end of that window. If you’re seeing dark streaks or patches come back, that’s the signal it’s time.
How long does a roof cleaning take?
Most roof cleanings take about two to four hours. The exact time depends on the roof’s size, its pitch, and how much growth needs clearing. A bigger or steeper roof takes longer, while a smaller, straightforward one is on the shorter end.


Let's Keep Your Charleston Roof
Looking Clean Through Every Season
Getting started is easy, and there’s no obligation. We offer free estimates by phone, online, or in person, so you can find out what your roof needs and what it costs before you commit to anything. Whether your Charleston roof is showing streaks or just due for a refresh, Seaside Pro Wash is ready to take a look. Call us at (843) 790-4298 to get your free roof cleaning quote.






