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TRUSTED BY WHIPPANY, NJ HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon776
    Verified roofing services reviews

Find Roofers in Whippany

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 Whippany, 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
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Skyline Construction Group
Skyline Construction Group
4.9(
84
)
Asphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Repair - For BusinessFlat, Foam or Single Ply Roofing - Repair+3 more

Serving Whippany, NJ and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Contacted Skyline Construction Group after a leak appeared in my roof. Fast response, honest genuine help and advice. Came back the same day to fix the problem. Would highly recommend their services. Thank you Skyline Construction Group."
Response time10 hrs
Response rate93%
3 neighbors recently requested a quote
Avatar for Monarch Roofing LLC
Monarch Roofing LLC
5.0(
198
)
Asphalt Shingle Roofing - Repair

Serving Whippany, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"I was most satisfied with the job quality for our replacement roof. Thanks a lot Monarch Roofing team. I will definitely call you again for any roofing and masonry needs."
Response time11 hrs
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Prestige Roofing & Construction LLC
Prestige Roofing & Construction LLC
4.9(
62
)
Flat, Foam or Single Ply Roofing - RepairAsphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Repair - For Business+3 more

Serving Whippany, NJ and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I had a great experience with Prestige Roofing & Construction from beginning to end. Everyone was professional and we are so happy that we chose this company for our new roof! Canâ t wait to hire them for our next project! Five stars!!!!!!"
Chimney Repair
New steps
Roof replacement
Steps Rebuilt
Steps Rebuilt

+3

Response time4 hrs
Response rate98%
5 neighbors recently requested a quote
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Showing 1-10 of 1434
Roofing questions, answered by experts

An improper DIY roof cleaning could cause leaks by damaging the roofing material. Things like using too much water pressure on the shingles or applying a harsh cleaning solution could cause damage. If you do enough damage, you could harm the ability of the shingles or other roof materials to keep water out of your home.

A roof pitch multiplier is an accurate way to calculate roof square footage, and it’s handy for purchasing the correct amount of materials. To determine your roof pitch multiplier, you'll need to calculate the roof slope, square it, and add it to 144. Next, find the square root of the total and divide it by 12. The answer is your roof pitch multiplier. Once you know the roof pitch multiplier, multiply it by the total square feet of your building to determine the total roof surface area.

Whether replacing the entire roof or just installing roof shingle replacements in small areas, always pull up the old roof shingles. While you can technically put new roof shingles (but not other roof materials) over old shingles, this can add weight strain to the roof and prevent the new shingles from securing properly to the roof.

The roof overhang, also known as the eaves, does count as part of the roof’s square footage because it must be covered with the roofing material. The overhang is one of the reasons why you can’t base your roof's square footage on the square footage of the house. The roof square footage must also account for the pitch of the roof as well as the eaves.

You can only overlay a roof once. Any additional layers of shingles will add too much weight and may also violate building codes. Once your roof has had an overlay, you’ll need to have a full roof replacement, including a tear-off of all existing roofing materials, when it’s time for a new roof. 

The Whippany, NJ homeowners’ guide to roofing services

From average costs to expert advice, get all the answers you need to get your job done.