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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified roofing services reviews

Top-Rated Roofers in Florham Park - Updated Nov 2026

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

Serving Florham Park, 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

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 Florham Park, 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 Jersey Roofing, LLC
Jersey Roofing, LLC
4.9(
454
)
Asphalt Shingle Roofing - Install or Replace

Serving Florham Park, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Ervis and his crew did an outstanding job. The price was fair and the quality was excellent. My roof was replaced in one day! I had 4 contractors that gave me estimates for the roof replacement and Jersey Roofing offered the most competitive price. There was a supervisor at all times onsite which I liked. I highly recommend Jersey Roofing for A+++ quality and service."
Roofing project in Morristown, NJ
ROOFING 2017-2018
ROOFING 2017-2018
ROOFING 2017-2018
ROOFING 2017-2018

+98

Response time8 hrs
Response rate100%
70 neighbors recently requested a quote
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Roofing FAQs, answered by experts

You can put new shingles over old shingles, but most municipalities only allow for two layers of shingles before you have to rip off the old roof and start fresh. In some areas, only a single layer of shingles is allowed due to the weight a bundle of shingles adds to your structure. In most cases, it’s a good idea to remove your old shingles before you install new shingles, especially if you suspect that a roof leak may have compromised the decking underneath.

The warranty for algae-resistant shingles varies by manufacturer, but the industry standard is 25 years for overall shingle durability and lifespan and between 10 and 15 years for algae resistance. Some products come with longer warranties for discoloration of up to 30 years. Check warranty coverage for the shingle and algae protection before deciding on a roofing product.

Spray foam roofs don’t stand up well to impact, so they won’t last as long as something like a tar and gravel roof and other flat roof materials in areas where extreme weather is common. Due to the reduced durability, you’ll also need more frequent maintenance and repairs for a spray foam roof, and those costs will add up over time. Spray foam roofs are relatively uncommon, so you may also struggle to hire a roofing contractor who can install one.

Copper roof strips offer better coverage and more damage protection than zinc roof strips. Although both deter moss and algae growth, copper also offers UV protection. Zinc strips require more strips than copper to cover the roof’s surface area, which means more holes in your roof. Copper strips are also more flexible and last longer than zinc strips.

Always inform your insurance company when you get a new roof. A new roof may entitle you to lower rates or discounts, and if you need to make a claim, they’ll have up-to-date information on your roof. You’ll need to provide documentation—ask your insurance agent what you need to submit to prove you had your roof replaced.

The Florham Park, NJ homeowners’ guide to roofing services

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