Roof Cleaning & Black Streak Removal

Those Black Streaks? They're Not Dirt.

Kodesh Pro-Wash provides soft wash roof cleaning for homes in Suwanee, Alpharetta, and Johns Creek, using a low-pressure treatment under 100 PSI with an algaecide solution that kills black algae at the root. At about $0.30/sq ft, a 1,500 sq ft roof runs around $450 and takes 2-4 hours.

Last updated: October 5, 2026

Get Free Estimate Call: (678) 916-8616

5-Star Google Reviews

Fully Insured

5.0

318 Google Reviews

Professional roof cleaning removing black algae streaks from asphalt shingles

Starting at

$450

Roof cleaning photos from our jobs

From our own roof cleaning jobs. We only show photos of real roofs we have cleaned.

Asphalt shingle roof during low-pressure soft wash roof cleaning

See the full gallery

What's included in roof cleaning

Low-pressure soft wash, no pressure on the shingles
Black algae streaks and moss treated on every slope
Gutters and downspouts rinsed after treatment
Landscaping pre-rinsed and rinsed again afterward
Walkways and siding below rinsed of runoff
Downspout outlets cleared of runoff debris

How it works

Step 1
Get your quote
Tell us the address and roof size, or we measure it for you.
Step 2
We schedule
We schedule a dry day.
Step 3
You enjoy a clean home
The streaks fade from the roof, and the shingles are left intact.

Why homeowners choose Kodesh Pro-Wash

Owner-operated

Anthony, the owner, is on the jobs himself.

Five-star Google reviews

Read what customers wrote on our reviews page.

Answered 7 days

Calls and texts answered 7 AM – 10 PM.

Read our customer reviews

Quick answers before you bookTap to read how the method works and what to expect

What causes those black streaks on my roof?

Those dark streaks are Gloeocapsa magma—a blue-green algae that feeds on the limestone filler in asphalt shingles. It's extremely common in Georgia's humid climate and spreads across your roof over time. Beyond looking bad, it traps heat (raising your cooling bill) and slowly deteriorates shingle granules, shortening roof life by years. The fix is soft wash roof cleaning: a low-pressure treatment under 100 PSI that kills the algae at its root without damaging shingles or voiding warranties.

Source: Kodesh Pro-Wash•Updated: March 2026

What Your Neighbors Say

Word-for-word Google reviews from real Kodesh Pro-Wash customers

“Highly Satisfied with Kodesh Pro Wash's pressure washing service! The crew was on time and precise, they washed my house & roof within 2 hours and everything looked brand new! Very pleased with their customer service, work quality, detail oriented! Will be recommending this company to my neighbors in St Marlo!”

Jasson Barrera· Google review

Great price

“Anthony did a great job communicating everything from start to finish. The technician Alex did a great job completing the project and paying attention to detail. Overall very happy with thru pressure washing services. Prices were fair, highest out of all 3 quotes but they delivered a premium pressure washing services!”

Soon Koon· Google review

“Anthony was friendly and did a great job. He even came back again to go over a few spots and made sure we were satisfied with the job”

Ram D· Google reviewServices: Power/pressure washing

Browse customer reviews View on Google

Here's Why It's Worth Fixing

A clean roof isn't just about looks. That algae traps heat (higher AC bills) and eats away at shingles (shorter roof life). Cleaning now saves you thousands later.

ARMA Approved

Our method is recommended by roofing manufacturers

Extends Lifespan

Add 5-10 years to your roof - save thousands on replacement

Warranty Safe

Won't void manufacturer warranties like pressure washing can

Energy Savings

Clean roofs reflect heat, reducing cooling costs up to 15%

What's Included:

Extends roof lifespan by 5-10 years - saves $1000s
Removes harmful algae, moss & lichen safely
Approved by ARMA - won't void warranties
Improves energy efficiency by reducing heat absorption
Dramatically increases curb appeal and home value
Prevents costly premature roof replacement
Safe for all roofing materials including asphalt, tile, metal
Fully licensed and insured

Free Roof Inspection Included

Every roof cleaning includes a complimentary inspection. We'll identify any issues and provide photos documenting your roof's condition before and after cleaning.

Schedule Free Estimate

Or Call: (678) 916-8616

Get Your Roof Cleaning Quote

See your price in 30 seconds — no waiting required

Get Your Free Quote

Takes 30 seconds · We respond in as little as 10 minutes

5.0(318 Google reviews)

Frequently Asked Questions

Yes, soft wash roof cleaning is the only method recommended by shingle manufacturers. We apply the cleaning solution at under 100 PSI, far gentler than a garden hose, so there's no granule loss or warranty risk like high-pressure washing can cause.

Yes, we clean roofs throughout Johns Creek, Suwanee, Alpharetta, Duluth, and the rest of Metro Atlanta. Our soft wash treatment handles the black algae streaks common on roofs near the Chattahoochee River corridor and other humid, tree-covered neighborhoods.

Those streaks are Gloeocapsa magma, an algae that feeds on the limestone filler in asphalt shingles. It's not just cosmetic — it traps heat, raises cooling costs, and shortens shingle life if left untreated.

At our rate of about $0.30 per sq ft, a 1,500 sq ft roof runs around $450 and a 3,000 sq ft roof runs around $900. Pricing depends on roof pitch, access, and how much algae buildup needs treating.

Most roof cleaning jobs take 2-4 hours. We apply the cleaning solution, let it dwell for 15-20 minutes to kill algae at the root, then do a light rinse — the rest of the cleaning finishes naturally with the next few rains.

No, as long as it's done with soft washing. High-pressure washing on a roof can void warranties and strip granules, which is why we never use it — our low-pressure soft wash method is warranty-safe and manufacturer-approved.

No. We apply the cleaning solution at low pressure and never use a pressure washer on shingles, which is what causes granule loss.

Most streaks lighten the same day. Heavier growth can keep fading over the next few rains as the dead algae washes off.

No. We need an outdoor water spigot and access to the yard.