Roof Cleaning Williamstown NJ

Roof Cleaning Williamstown NJ

Diamond roof cleaning has been serving Williamstown for the past 9 years. We are fully trained and certified. We were the first company in south jersey to offer a 5 yr warranty on roof cleaning. We use the most up to date cleaning solutions to give you the best results. If you have Ugly Black Roof Stains or Damaging Moss give us a call and we will determine the best solution to solve the problem at the best affordable price.

What causes the black roof stains in Williamstown? There is a form of bacteria called Gloeocaspa Magma that is feeding off of the limestone in the asphalt shingle. This Algae usually grows on the north side only but can cover both sides of the roof if you are in a heavily covered area of trees. It will form as streaks being wider at the gutter line then tailing towards the ridge line. Eventually if left untreated it will overtake your entire roof causing rapid granule loss leading to early roof replacement. Think of roof cleaning as maintenance just like changing your oil in your car. We do this to keep our cars running longer. At the same time we are cleaning the roof to keep the roof clean and to allow it to achieve its full life potential which is anywhere between 25-30 years for a dimensional shingle.

Roof Moss Williamstown

Roof moss is another culprit that will cause the roof to break down prematurely. Moss is usually caused by oak trees that are overhanging your roof. Every spring these trees drop their spore and cause the start of the moss on your roof. the moss in time will eventually grow under the edge of the tab causing it to lift. This can potentially cause the tab to be lifted off during a high wind storm and then cause a leak into your attic.

We treat the moss will our specialized cleaning solution. Our solution will kill the moss from the top down to the roots. By doing this it will allow for the moss to decompose and fall off naturally without any damage to the shingle. It will take anywhere between 2-4 months but this is the better option compared to power washing which will destroy your roof.

Diamond Roof Cleaning also provides :

Shingle Roof Cleaning Williamstown

Cedar Roof Cleaning Williamstown

Slate Roof Cleaning Williamstown

Metal Roof Cleaning Williamstown

Flat TPO Roof Cleaning Williamstown

Choose us in confidence with our now 9 years of being in business and our knowledge of all the aspects of Exterior Cleaning. We are fully Licensed, Insured, And Completely Background Checked thru a company called We also offer a 100% satisfaction guarantee on every job. Our way of business is to make sure every customer of ours is 100% happy with our work and our professionalism. We always make it appoint to go above and beyond the customers expectations.

Call today to have a Sparkling Tomorrow.

Give diamond roof cleaning a call at 609-929-5812 for your free estimate.


8 months ago
Our Building consists of stucco, siding & metal roof which we had Powerwashed and cleaned. Diamond Roof Cleaning did a phenomenal job everything came out beautiful. We’re very Thankful that we picked the right company for the job. Highly recommend.
Ruth Flom
Ruth Flom
7 months ago
Fantastic reviews led me to this company and I couldn’t have been happier with this outcome. My pavers look better than when they were installed. Outstanding service and results. Highly recommend!!!
Bryan White
Bryan White
a year ago
Diamond Roof Cleaning did an amazing job. Our roof looks like new. They were professional and caring about our property. I have already given our neighbors their name and phone number. Highly recommend! You won't be disappointed
Matthew Hibshman
Matthew Hibshman
5 months ago
Top notch contractor. I expected high prices because of the stellar reviews but the cost to clean my gutters was spot on reasonable. I emailed for a quote late in the evening and the owner responded within 30 min (at 11:30 pm). He sent a full estimate PDF quote within 24 hours that included a copy of his NJ contractors license, insurance, before and after pics and itemized estimate. The job was done within 3 business days of accepting the estimate. I received before and after photos of my gutters to show the work was one (because to be honest unless you get up on the roof it’s a blind service), and option to pay invoice electronically with a credit card. Do not hesitate to use this company. You’ll rest better knowing you are in good hands.
Debbie Hamilton
Debbie Hamilton
2 months ago
I’ve had a full cleaning last year and now a debris removal this week. Diamond Roof Cleaning is professional and so easy to deal with. Their prices are very reasonable and they do very good work! I highly recommend them’

Why Choose Diamond Roof Cleaning

Unmatched Service & Technology

From our state of the art cleaning systems, advanced cleaning methods to insure the best and safest results, to our intensive employee training, you can rest assured that with Diamond Roof Cleaning your home is being treated by the best and most reliable pressure washing and exterior cleaning company in Southern New Jersey! But don't take our word for it, our more than 420 5-star reviews speak for themselves!


There Is Nothing We Can't Clean

Whether your property has vinyl or brick siding. Whether it is a multi-building apartment community or and single family home, the soft washing and pressure washing professionals at Diamond Roof Cleaning can clean almost anything! Amazing results and friendly service and standard with us! We are proud to serve these great communities:

Fully Insured Pressure Washing Service In Southern New Jersey

From Our Blog

The Diamond Standard Of Exterior Cleaning Awaits