Roof Cleaning

Your Southern New Jersey Roof Cleaning Experts

Have you been noticing black streaks on your roof? Does your roof suffer from a general darkening of appearance? Have you noticed that your utility bill has unexpectedly increased? Well those ugly roof stains are not caused by planes or air smog but they are caused by an algae called Gloeocapsa Magma. This form of algae will grow all over the north facing side of your roof. In Southern New Jersey you cannot drive down a street without seeing a roof that bears the telltale black streaks. As this invader literally eats away at your shingles, it is also eating away at your wallet! What most people do not realize is that they can safely have their roof cleaned without the use of a high pressure washer. As a matter of fact, you should NEVER use high pressure on your roof no matter what anyone tells you. You will cause irreversible damage and be left with no alternative but to replace the roof.

We at Diamond Roof Cleaning are here to help you not only clean your roof the safe way but to save you money as well. Our time proven process has cleaned well over 100,000 roofs and counting. Which is why we can safely say that Diamond Roof Cleaning is the leader in soft wash roof cleaning in NJ!

Reasons Why You Should Have Your Roof Cleaned

Roofs are meant to reflect the sun and keep the attic cool through the use of ridge vents and fans. Black Roofs Cost money by absorbing the heat from the sun. This black mold can and will get into your attic and cause a mold problem inside your home, causing other health related problems.

  • Aesthetics
  • Avoid Premature Shingle Failure
  • Energy Savings
  • Help the Environment
  • Proper Home Maintenance
  • Increase Home Value

Our Roof Cleaning Process

Diamond Roof Cleaning has a specially blended solution that is designed to treat and kill the algae that are growing on your roof. But we don’t just get up there and start spraying when we arrive. Our Lead Tech will first introduce ourselves to the customer, and then clearly state what we will be doing. The tech will then place our ladders up on the gutter line of the roof using a ladder standoff. This helps protect the gutters from being damaged. We then remove any debris from the roof and inside the gutters. After those steps, we will look at your roof to make sure there are no areas of concern such as leaking pipe collars, Nail Pops, or Ridge Problems.

If we do spot something we will let you know before we proceed. If we can address the problem we will and if not we will give you the name of a company in your area that we know will do a great job!. Once everything is OK to move forward we will then treat the whole roof and clean the dirty areas. The end result is that your roof will be free of any black streaks before we leave. Moss is treated and could take up to 6 months for it to remove itself depending on the amount of moss on the roof.

We can safely clean almost any type of roof system. We have cleaned Slate Roofing, Cedar Roofing, TPO Flat Roofing and Metal Roofing. Each system has to be treated a little bit different from each other but that is why we are the go-to roof cleaning company in New Jersey. Our experience and knowledge are unsurpassed and unmatched. We continue our education every year by attending trade shows and networking with other companies through the United States.

Also save money on electric bills because the roof can do its job and reflect heat instead of absorbing heat. Retain the life span of the roof.

Roof Cleaning FAQs

What causes black streaks on a roof?

Black streaks often come from Gloeocapsa magma, a type of algae, not ordinary dirt. Address spots before they grow into streaks across the roof and hurt curb appeal. Wind or animals carry spores from roof to roof, affecting yours and your neighbors’ roofs. GAF's technical bulletin on algae staining explains the discoloration. The Asphalt Roofing Manufacturers Association provides guidance on cleaning roof algae. For help with black streaks, ask Diamond Roof Cleaning for a free estimate.

How do you remove black streaks from a roof safely?

Professional soft washing uses a low-pressure cleaning application, time for the treatment to work, and a low-pressure rinse. Plants below are protected during the work. GAF's technical bulletin on algae staining warns that pressure washing can loosen shingle granules. The Asphalt Roofing Manufacturers Association also says never to use a pressure washer on asphalt shingles. Leave slippery-roof work to a professional. Get a free roof-cleaning estimate from Diamond Roof Cleaning.

What do shingle manufacturers say about cleaning roof algae?

Their guidance is clear: keep pressure washers off asphalt shingles. GAF's technical bulletin on algae staining warns that power washing may dislodge protective granules. The Asphalt Roofing Manufacturers Association describes a cleaning treatment with dwell time followed by a low-pressure rinse, plus landscaping protection and protective equipment. These steps are good reasons to hire a professional. Contact Diamond Roof Cleaning to request your free estimate.

Why hire a professional soft washer instead of DIY?

Saves time. Our pro equipment and cleaning agents make light work of black streaks compared to consumer grade. Less surface-damage risk — we never ever use high-pressure on your roof. Free estimate: 609-929-5812. 684 Google reviews at 5*.

What should I check before hiring a roof cleaner in New Jersey?

Before you hire a roof cleaner, use this checklist:

  • Ask for the company’s NJ Home Improvement Contractor (HIC) registration number and verify it with the New Jersey Division of Consumer Affairs license lookup. Diamond’s current registration number is 13VH08303600.
  • Choose soft washing, never pressure washing for shingles.
  • Ask for proof of insurance.
  • Get a written estimate covering treatment areas and plant and gutter protection.
  • Ask about their pre-treatment checks: ladder standoff, roof and gutter debris, and pipe-collar leaks, nail pops or ridge issues they’ll flag.
  • Read recent customer reviews.
  • Choose a South Jersey company you can reach after the work.

Request a free estimate from Diamond Roof Cleaning.

5 Year Spot-Free Warranty

Our philosophy is simple. Provide outstanding results at affordable prices. We use state of the art technology and an unmatched level of dedication to make sure you are thrilled with your results. But in the extremely rare instance that you are not we have a 5 Year Spot-Free Warranty to back our Roof Cleaning Service!

Diamond Roof Cleaning Warranty

Here is an Example of A Roof Replacement Cost

An A-frame 2000 Sq. Ft. roof with an addition on the back. Total Cost to Replace – $8500-$9600! Wow, that’s Outrageous!, an actual estimate the home owner received. We can clean a roof for less than 10% of the cost of a New Roof! That’s less than 10% of the cost of a new roof which was not needed after visual inspection. There was no damage and no leaks just a mildew infested roof which is now cleaned.

Our Roof Cleaning Gallery

Description

CLIENT REVIEWS

Joanne Tarditi
Joanne Tarditi
★★★★★
2 months ago
We are very pleased with the service we received from Diamond Roof Cleaning! Our detached garage ,which is under trees, had a lot of moss growing on the pyramid roof. Mike explained the process of what they were going to do. Diamond Roof cleaning did an excellent job! We are also impressed with the way they sent out their proposal by email..
K
K
★★★★★
5 months ago
Diamond Roof Cleaning power washed our house and deck. They were great. Very careful around the property. The crew were very helpful and explained everything. The house and deck came out sparkling clean. Would not hesitate to use them again.
Elena Pendino
Elena Pendino
★★★★★
5 months ago
Diamond delivered exceptional power washing services with professionalism and precision. Their skilled team uses top-of-the-line equipment to restore my roof to spotless condition. I appreciate their careful handling of surfaces, efficient work, and eco-friendly cleaning methods that are safe for people, pets, and plants. With prompt communication and attention to detail, they consistently exceed expectations, making them a reliable choice for both one-time and ongoing power washing needs.
Lou Marandino
Lou Marandino
★★★★★
9 months ago
Mike and his crew do a wonderful job. Diamond Roof Cleaning has come out multiple times to clean my siding. The house always looks pristine after they are finished. They were able to clean stains on the concrete that were there for years.
Melissa Hagerty
Melissa Hagerty
★★★★★
3 months ago
Mike and his team were amazing to work with. They were very communicative and on time. Our roof looks great ! Highly recommend

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. See what customers say in our 680+ Google reviews at 5★.

best-service

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