Top Rated 5 Star Roof Cleaning Penns Grove NJ

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Power Washing Genie and roof cleaning offers SUPERIOR cleaning for your Penns Grove home or business. Got a roof with ugly black stains? Is your roof in need of a refreshing clean? Want to increase your home’s protection and curb appeal? Let Power Washing Genie soft wash your roof today. With no harsh pressure or chemicals, it’s like treating your roof to a day at the spa! With our Penns Grove Original 5 Year Roof Warranty and fair & honest pricing, you don’t have to spend a fortune! We are Avalon’s best soft wash roof cleaning company!

Power Washing Genie is South Jersey’s trusted local expert for all exterior cleaning projects. We have uniformed, professional, and a courteous staff. We are fully insured and have the tools and knowledge to get any size property complete and done in a timely fashion. We have the highest reputation in the area and our consistent reviews show our dedication to our customers. Power Washing Genie simply provides the best power washing in the area. It’s no surprise we’re the highest rated power washing company with online reviews in South Jersey!

Roof Cleaning FAQs

A roof is a very vital part of your house. It protects you from rain, sun and other weather elements; it also reduces energy costs by preventing heat loss through convectional phenomenon! But what if there were an issue with its cleanliness? That’s where Power Washing Genie comes into play – we offer high-quality residential cleaning services for both small businesses as well homeowners alike. Our experienced technicians use safe low pressure techniques (less than 150 psi) on all surfaces regardless whether they are steep angles or flat roofs so any type can be safely cleaned without leaving behind unwanted bird droppings which could lead to further problems suchs termites infestation

What are the black stains that form on your shingles?

The black stains that commonly build up on shingle roofs are not dirt or soot, but rather an algae. The fungus-like creature called Gloeocapsa Magma thrives in this environment and can cause shingles to discolor over time if left unchecked by appropriate measures taken against it – for example removing dead plants near your home which provide food sources for Cyanobacteria (the correct name of “fungus” associated with these organisms). These brownish patches will have tiny root systems winding their way into pores where they feed off organic material found within siding materials such as granules from damaged bricks; when you see dark spots around windowsills consider how often they may be getting wet!

Can You Pressure Wash A Roof?

The simple answer is no, you can not and should never attempt to pressure wash a shingle roof. It is debatable weather tile roofs should be pressure washed but pressure washing a shingle roof in many cases can void the warranty.

How To Clean A Shingle Roof?

Since pressure washing is not an option for cleaning shingles what other options are available for roof cleaning?

Soft washing is the best method for roof cleaning. Soft washing is done using an algicide mixture that removes the algae, moss, and lichen and the roof which helps keep it away for much longer. Soft washing is a safer, more efficient way of cleaning roofs and its’s the only approved cleaning method by ARMA.

Roof cleaning is generally best left to professionals. Power Washing Genie has high grade equipment and trialing for safe roof cleaning.

How To Keep Your Roof Cleaner For Longer?

There are a few ways to keep your roof cleaner for longer:

Keep Gutters Clean and Flowing To Prevent Water Stagnation
Trim back any trees or bushes that may cover the roof
Install Zinc Strips (Optional)
Purchase Algae Resistant Shingles

Black stains on your roof can be an eye sore, but they’re not just a cosmetic issue. Black roof algae appears as black stripes streaking toward your gutter line. These black spots and streaks are mistaken as stains on the roof and nothing more. Unfortunately, they are much more than an eyesore and will not go away on its own. Left untreated, these specific algae will continue to expand and begin compromising your home’s number one protection. These roof algae will begin decomposing your roof immaturely, and due to the ARMA (American Roof Manufacturer Association) clause will void your warranty due to it being untreated. This algae gets its nutrients to survive on your roof by feeding on the lime stone filler inside the asphalt shingle. Power Washing Genie roof cleaning has an inexpensive solution to remove your stains.

Roof cleaning is the process of removing algae,^[1] mold, mildew, lichen and moss from roofs.^[2] Also cleaning oxidation on metal roofs. Cleaning can extend the duration of a roof’s ability to function.^[2] Algae and other types of build-up often form on the north and west parts of roofs that are shaded or receive less sun, and can reduce a roof’s life expectancy.

Why use a Soft Wash Roof Cleaning system and not just Pressure Wash?

What goes into cleaning a roof properly? Why can’t I Pressure Wash it? First, roof cleaning and pressure washing are two very separate techniques with very distinct equipment. Pressure washing a roof takes years off the roof life and voids warranties. Pressure washers are designed to clean and break free grime and other stains with the use of force or PSI (pound per square inch). This unregulated pressure is the damaging factor and the wrong way to clean a roof. Power Washing Genie uses State-of-art-equipment Soft Wash Cleaning coupled with the correct cleaning agents. In fact, the correct chemical usage is the main facet in cleaning a roof properly. Pressure from the unit in the Soft Wash Cleaning System has very little to do with the end result. A Soft Wash System only delivers about 65 P.S.I, as much as a household garden hose

Roof algae: more than just a curb appeal

Well it’s Alive! Yes! Those ugly black streaks known as roof algae or the scientific name Gloeocapsa Magma, has gained notoriety in the Southeastern part of the United States. This particular type of cyanobacteria is responsible for creating black stains and streaks on roofs. The bacteria accumulate over time as it feeds on moisture and calcium carbonate. This accumulation begins to show the black stains as the cyanobacteria develop their dark and hard UV-protective outer coating. These stains take months, or even years, to appear, but once they are present they are here to stay, living and feeding on your roof shingles. So how did they get on my roof you ask? Well you could thank your neighbor or someone in the area, algae spore are thought to break free and become air born and land on your house. These algae spore set up shop on the North Side of your house, as they begin to feed on your asphalt shingle. Every rainfall or moist weather forecast causes an increase in the growth of the roof algae / Gloeocapsa Magma. This formation of roof algae can be noticed streaking towards your gutter line. As our climate in New Jersey and surrounding areas begin to warm our problem with roof algae begins growing as well.

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Learn what could be grown on your roof:

Gloeocapsa Magma

The most common class of roof algae is Gloeocapsa Magma, which is a bacterium that thrives off of water and in return expels oxygen afterward. This is what causes those black streaks on your metal roof! These dark stained areas are actually a conglomeration of algae that can prevent the sun from burning off the organic growth from your roof’s surface.

Lichen

This type of roof growth is a combination of algae and fungus. When these two growths get together they can produce living organisms living on your roof. The lichens will use their perennial root structure to attach tightly and stubbornly to your metal roofing surface which makes them extra difficult to remove. If you do not remove the Lichen in a timely manner, they can damage your roof permanently and even cause surface rust which can turn into structural damage weakening your roof’s composition.

Roof Moss

Moss is similar to Lichen in many ways since it has a strong root system called rhizoids which anchor its body to your metal roofing surface. The moss then can team up with the Lichen and create a layer of organic growth super power lichen/algae ecosystem on your roof by collecting organic dust, dirt, and organic particles to feed itself and continue to grow.

Mold

This is the one everybody is worried about especially on the inside of the home! Mold is a very un-healthy plant that can grow on your roof. Moldy roofs can be detected in brown or black areas, or it can accumulate as a stinky smelling area that can be slippery as well. Mold loves areas rich with water such as rainy climates or an area where the irrigation system is constantly spraying every morning.

Mildew

Mildew is similar to mold as in it can thrive in mildlyd wet areas and cause health issues. It can appear as a powdery substance and have many different colors and hues or shades. Colors of mildew growths can range from pink to a dark black.

Homeowners trust one company with their multi-million dollar homes and that’s Power Washing Genie! We’ll take care of everything from start to finish! We have professionally trained technicians and a fleet of high performance vehicles that will complete your job in a matter of hours! With our plant and property protection plants, shrubs and landscaping will all be protected as well. You wont have to worry about what you’re cleaning. Our technicians will take care of it all. Roofs, siding, brick, driveways, patios, fences and porches. Get it all cleaned in one visit!

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   Power Washing Genie
   146 Google reviews 
  Write a review 
 
 
 
   
 
 
      Posted on Google  
   
   Dan Linthicum 
 September 21, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Ray and his team of professionals came and cleaned my place of business up right! The job was quick, clean, and done with the upmost professionalism. 10/10 would recommend to anyone!
  
 
     Posted on Google  
   
   Christine Callahan 
 June 4, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent job!
  
 
     Posted on Google  
   
   Charles Andaloro 
 May 18, 2026
 
 
 Trustindex verifies that the original source of the review is Google. The service was prompt and the workers courteous. Highly recommend them.
  
 
     Posted on Google  
   
   Candace Nicole 
 April 26, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Power Washing Genie did a phenomenal job on my home, everything looks absolutely amazing! Professional, efficient, and clearly takes pride in their work. Highly recommend to anyone looking to refresh their home’s exterior.
  
 
     Posted on Google  
   
   Susan Shaw 
 April 9, 2026
 
 
 Trustindex verifies that the original source of the review is Google. I had my entire roof power washed to get rid of  quite a lot of moss that had grown on the roof due to overhanging tree branches and no sun on several areas of the roof.
Ray and company did the power washing in early December (2025).  They did a very thorough job - and informed me that approximately after 8 weeks, the moss  should be gone and the roof should be clean.  If it wasn’t, to give them a call and they would come back and reapply the solution again .  There would be NO COST to me as they value their customers and their work ethic.
By the 1st  week in  April (2026), there was still some evidence of moss and discoloration on the roof.  Due to the horrible NJ winter with no  sun and lots of ice and snow, not all of the moss had died.  I called them and they came out within just a few days - and power washed the roof again .
NO CHARGE to me - Ray is definitely true to his word!!😃
Now, with the warmer weather and sunshine , I can already see the difference- the roof is looking good!!
He is a very cordial person, informs you of what the  job entails and gets the work done in a timely manner.
I definitely recommend his company for any future work that needs to be done!!😊
  
 
     Posted on Google  
   
   Chris Randazzo 
 April 9, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Came out and banged it right out ! Great guy's! Beat everyone else's price by a LOT !
  
 
     Posted on Google  
   
   Deborah Toth 
 April 8, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Our wood deck and composite railings were covered in thick green mildew and black mold. Two men from Power Washing Genie arrived on time, were professional and worked carefully  to make sure our plants were protected all while making our deck look like new! We were so pleased with the way it turned out! Would highly recommend them and definitely use them again.
  
 
     Posted on Google  
   
   John Ferrillo 
 April 8, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent communication in what they do.
Arrived on time, protected my property and explained every aspect of the cleaning.
This is an important service to keep your roof under warranty. Saw results while they were still here more to come in the coming weeks.
I highly recommend this company.
  
 
     Posted on Google  
   
   Dirk Miller 
 April 5, 2026
 
 
 Trustindex verifies that the original source of the review is Google. They got here and sprayed the roof front and back and we’re very pleasant to talk with and after a week the roof looks brand new

Explore the Beauty of Penns Grove with Power Washing Genie

Welcome to Penns Grove, where history meets modern vibrancy! Power Washing Genie is proud to serve this picturesque town and its surrounding areas with top-notch exterior cleaning services. Nestled along the Delaware River, Penns Grove boasts a rich heritage dating back to the 17th century.

Point of Interest:

Historic Charm: Take a stroll through Penns Grove’s historic district, showcasing elegant architecture that echoes tales of a bygone era. The town’s historic landmarks, such as the Finn’s Point National Cemetery, provide a glimpse into its storied past.

Riverfront Beauty: Enjoy the scenic Delaware River waterfront, offering serene views and recreational opportunities. Power Washing Genie ensures that your property’s exterior matches the natural beauty of its surroundings.

Community Spirit: Penns Grove thrives on community events and cultural richness. From local festivals to farmer’s markets, the town buzzes with activities. Power Washing Genie is committed to supporting the vibrant atmosphere by keeping commercial spaces clean and inviting.

Our Services: Power Washing Genie covers a range of exterior cleaning services in Penns Grove, from power washing to concrete cleaning. We understand the unique needs of this community and strive to enhance the aesthetic appeal of every property we touch.

Let Power Washing Genie be your partner in preserving Penns Grove’s allure. Contact us for expert exterior cleaning services that blend seamlessly with the town’s historical and natural charm. Your property deserves the best, and Penns Grove deserves to shine!