Roof Washing Services in Hammonton, NJ

Algae streaks, moss, and grime build up on roofs across South Jersey's humid climate. Bethany Associates removes these safely with soft washing methods that protect shingles while restoring your roof's appearance.

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Licensed, insured, and review-backed

Exterior Cleaning Services Offered

Towns Served Across South Jersey

Residential & Commercial Property Types

Schedule Roof Washing Today

If your roof is showing streaks, moss, or buildup, reach out to Bethany Associates for a soft wash cleaning designed to protect your shingles and restore your roof's look.

About Us

Roof Cleaning Built for New Jersey Homes

Black streaks and moss aren't just cosmetic. They trap moisture and wear down roofing material over time. Our team uses low-pressure soft washing to break down algae and grime without damaging shingles, gutters, or landscaping below. Homeowners throughout Hammonton and surrounding towns trust us to keep roofs looking clean and lasting longer.

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Service benefits

What Our Roof Washing Covers

Every roof gets a treatment suited to its material and buildup, applied with care around vents, flashing, and vegetation.

Soft washing safe for asphalt and shingle roofs

Removal of black algae streaks and moss

Treatment for lichen and organic growth

Low-pressure application to protect shingles

Gutter and downspout rinse included

Plant and landscaping protection during cleaning

Testimonials

What Customers Say About Bethany Associates

Read what customers say about working with our team.

4.9 • 718 reviews

Google ReviewsLeave us a review

Damien and Will did a great job getting the moss off my garage roof. I would recommend Bethany Associates for all power washing needs.

Owner reply

Fantastic! And that roof wash comes with a 5 Year Clean Roof Warranty, so it will be looking good for a while! Thank…

Carol Somaine

2026-04-14

This was my first experience with a power washing service and it could not gone been better than it did with Bethany Associates. They are highly professional from start to finish. The salesperson broke down the quote…

Owner reply

Thank you for the wonderful review, Michelle! It's exciting to see what a difference pressure washing can make! It's a…

Michelle Lennox

2022-05-07

Very friendly and attentive to all aspects of power washing my house. See you this week for the windows! I’ve been using BA for 20 years. I highly recommend. MaryClare Malady

Owner reply

Always a pleasure helping out, Miss MaryClare! Thank you for being a loyal customer of Bethany Associates for two…

MaryClare Malady

2026-09-08

Angel did a great job of washing our windows. Highly recommend.

Owner reply

Thank you for sharing your review, Miss Cynthia! Angel is a hard worker with a great attitude. Thanks for choosing…

Cynthia Aloise

2026-08-31

Bethany Associates made the entire process a wonderful experience! From Isaiah and Leah helping with questions and scheduling to Hayden and Jimmy, who did an outstanding job washing the windows, everyone was kind,…

Owner reply

Wow, what an amazing review! Thank you for sharing your wonderful feedback! The team will be encouraged to hear how all…

Sharon R

2026-08-21

He came and power washed the roof, he did a great job. He explained the process of the work and I appreciate it. Great job, thank you

Owner reply

Awesome! Glad you're happy with the technician and the outcome. Thank you for choosing Bethany Associates for your…

Bernadette Gai

2026-08-21

Our Process

How We Wash Your Roof

We keep the process straightforward from the first call to the final rinse, so you know what to expect at each stage.

01Step 1

Roof Inspection

We look over the roof's material, slope, and the extent of algae or moss growth before choosing our cleaning approach.

02Step 2

Surface Preparation

Landscaping, outdoor fixtures, and delicate areas near the roofline are covered or moved to prevent overspray.

03Step 3

Soft Wash Application

A cleaning solution formulated to kill algae, moss, and lichen is applied at low pressure to lift stains without harming shingles.

04Step 4

Rinse and Final Check

We rinse the roof thoroughly, clear gutters of runoff debris, and walk the property to confirm the results before finishing.

Frequently asked

Roof Washing Questions from Hammonton Homeowners

Get clear answers about roof washing, preparation, timing, maintenance, and what to expect before requesting an estimate.

Will pressure washing damage my shingles?

High pressure can lift or crack shingles, which is why we use soft washing instead. This method relies on cleaning solution and low water pressure to remove algae and moss without stripping granules from the roof.

What causes the black streaks on my roof?

Those streaks are typically caused by gloeocapsa magma, a type of algae that thrives in humid climates like South Jersey. It spreads across shingles and darkens over time if left untreated.

How often should a roof be washed?

Most homes benefit from a roof wash every one to two years, depending on tree coverage, shade, and local humidity. Roofs near heavy tree cover tend to need more frequent attention.

Is roof washing safe for older roofs?

Yes. Our soft washing approach uses low pressure specifically because it's gentle enough for aging shingles. We also inspect the roof beforehand to flag any areas that need extra care.

Do you clean metal or tile roofs too?

We adjust our cleaning solution and technique based on roofing material, including metal and tile. Each surface reacts differently to algae and moss, so treatment is tailored accordingly.

Will the cleaning solution harm my plants or lawn?

We take precautions to protect landscaping before applying any solution, including covering plants and rinsing runoff areas. Our goal is to clean the roof without leaving lasting effects on your yard.

How long does a roof washing appointment take?

Most residential roof washing jobs are completed within a few hours, depending on roof size and the amount of buildup present. Larger or steeper roofs may take longer to treat properly.

Do you serve areas outside Hammonton?

We provide roof washing throughout South and Central Jersey, including Mays Landing, Williamstown, Egg Harbor City, Vineland, and Galloway, along with the surrounding communities.

Schedule Roof Washing Today

If your roof is showing streaks, moss, or buildup, reach out to Bethany Associates for a soft wash cleaning designed to protect your shingles and restore your roof's look.

Request Service