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    Average homeowner rating
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    Verified roofing services reviews

Top-Rated Roofers in Denville - Updated Nov 2026

Avatar for 1 ALL AMERICAN ROOFING LLC
1 ALL AMERICAN ROOFING LLC
5.0(
208
)
Asphalt Shingle Roofing - Repair

Serving Denville, NJ and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. \n \nCall us today you'll be pleased you did. Thank you \n

1 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for George J Keller & Sons LLC
George J Keller & Sons LLC
4.4(
262
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - Install or Replace - For BusinessAsphalt Shingle Roofing - Repair+26 more

Serving Denville, NJ and surrounding areas

Approved

In business since 1980

Free estimates

Warranties offered

"Roof was 25 years old and was due for replacement. I also had old LP fiberboard siding that needed replacing in some sections mainly the chimneys. The rest was ok and I couldn't see spending the money to replace it all. George Keller did a terrific job on the roof and worked with me to match the LP siding using James Hardie siding. Carl the estimator took his time gave me a detailed estimate with pictures showing all the sections of siding that would be replaced. George Keller had done other houses in our neighborhood and one neighbor, an architect, used them, so that speaks to their reputation. I would highly recommend them. They are very efficient and neat and will finish your job in a day or two."
Green With Envy
Modern Farmhouse
Metal Roofing
Green With Envy
Modern Farmhouse

+41

Response time12 hrs
Recommended by90%of homeowners
Avatar for Skyline Construction Group
Skyline Construction Group
4.9(
84
)
Flat, Foam, or Single Ply Roofing - Install or ReplaceAsphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Repair - For Business+3 more

Serving Denville, NJ and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"contacted the roofing company for a quote on a new roof,from the first meeting with gary to the end result the work was completed on time and to a very high standard.if your looking for a professional roofing company then gary and his team at Skyline Construction Group."
Response time10 hrs
Response rate93%
5 neighbors recently requested a quote
Avatar for Pro Master Construction NJ, LLC
Pro Master Construction NJ, LLC
5.0(
130
)
Asphalt Shingle Roofing - RepairFlat, Foam or Single Ply Roofing - RepairAsphalt Shingle Roofing - Repair - For Business

Serving Denville, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Pro Master Construction recently repaired my roof, and I am very impressed with their work. They were professional, efficient, and thorough. The repair was done quickly and the roof looks as good as new. I highly recommend Pro Master Construction for any roof repairs!"
Before
Before
Before
Before
After

+71

Response time6 hrs
Response rate98%
125 neighbors recently requested a quote
Avatar for All Point Construction, LLC
All Point Construction, LLC
5.0(
209
)
Asphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Repair - For BusinessFlat, Foam or Single Ply Roofing - Repair+3 more

Serving Denville, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Credit card accepted

"We had extensive roof damage due to severe storms. They repaired/replaced everything and now we have a beautiful new roof. Theyâ re very professional, courteous and do outstanding work. Their work price is very reasonable. I would definitely highly recommend All Point Roofing for roof repair."
Roof
Roof
New Roof
Response time1 day
Response rate96%
7 neighbors recently requested a quote
Avatar for Four Seasons Roofing and Construction
Four Seasons Roofing and Construction
5.0(
151
)
Asphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Repair - For BusinessFlat, Foam or Single Ply Roofing - Repair+1 more

Serving Denville, NJ and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Four Seasons Roofing did an exceptional job fixing my roof. The team was prompt, professional, and efficient. The repair was completed quickly and effectively. I highly recommend their services to anyone in need of roofing repairs. Thank you, Four Seasons Roofing."
nailing shingles
nailing shingles
installing drip edge
nailing shingles and installing plywood
view from the ground floor, during the process

+11

Response time5 hrs
Response rate94%
6 neighbors recently requested a quote
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Roofing FAQs, answered by experts

A gambrel roof and a mansard roof are similar in that they are both hipped roofs, meaning they have double slopes—one steep and one more gradual above the steep slope. The difference is that a gambrel roof has a double slope on only two sides of the structure, whereas a mansard roof has a double slope on all four sides.

Metal roofs do not inherently leak more than shingle roofs; when properly installed, they are generally less likely to leak. Asphalt shingle roofs are more susceptible to leaks due to factors like wind uplift, damage from extreme weather, moss growth, and ice dams. Over time, asphalt shingles also lose their protective grit, which reduces their waterproofing capabilities. In contrast, metal is a more resilient material that stands up better to heavy precipitation and high winds. However, metal roofs can develop leaks if they are poorly installed, have improperly sealed fasteners, or experience issues from thermal expansion. For this reason, professional installation and regular maintenance are crucial to ensure a metal roof's longevity and superior protection against leaks.

Yes, copper roof strips can help prevent shingle damage and are an alternative to algae-resistant shingles. They work in a similar way: they release copper ions that interfere with algae, moss, and other plant growth. Algae feeds on limestone in your roof shingles, and moss can uplift shingles and increase the risk of leaks. If you have issues with algae or moss on your roof, copper roof strips can help avoid damage.

Asphalt shingles have varying thicknesses across the length, so failing to stagger shingles from one row to the next will leave you with bulges and bumps if the thicker sections stack on top of each other. Not only is this unappealing, but it increases the risk of water intrusion. Stagger each new row by 6 inches to avoid this issue.

If your roof has a vapor barrier, you will need approximately one square foot of roof vent for every 300 square feet of ceiling space. If there is no vapor barrier, the roof should have one square foot of roof vent for every 150 square feet of ceiling space. If you are not comfortable making this determination, a local roofing professional can help.

The Denville, NJ homeowners’ guide to roofing services

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