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TRUSTED BY NORTHFIELD, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon923
    Verified roofing services reviews

Find Roofers in Northfield

Avatar for AMJ Contractors, LLC
AMJ Contractors, LLC
4.5(
104
)
Asphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Repair - For BusinessFlat, Foam or Single Ply Roofing - Repair+12 more

Serving Northfield, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Emergency services offered

"I am a 69 year old female. I am beyond grateful for Rafael and his company, AMJ Contractors. He went above and beyond!! When I noticed my ceilings and walls were bowing, Total panic. Saturday, I put out a general request for quotes. Rafael Jimenez, the proud owner of AMJ Contractors was the first to respond and here within the hour. I explained my current financial situation and if only the absolute bare minimum be done. Before he went on the roof, I asked if he knew anyone in need of a huge air conditioner. I needed it out so I could put my new little one in. As I walked him to his truck. He looked at me and said, if you are available on Monday, I’ll come back with a helper. Only pay me for the roof supplies. I will fix your roof and put in your 3 air conditioners. I was stunned Tears flowed Two days later, My 3 air conditioners were installed with thick plywood from his shop. Next on my roof for hours with big smiles!! A true family man Top notch job Highly recommended"
 Flat roof
 Amjcontractors jobs
 Amjcontractors jobs
 Amjcontractors jobs
 Amjcontractors jobs

+79

Response time1 day
Recommended by93%of homeowners
Avatar for Great Group Home Improvement, LLC
Great Group Home Improvement, LLC
4.7(
52
)
Asphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Repair - For BusinessFlat, Foam or Single Ply Roofing - Repair+1 more

Serving Northfield, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"I recently hired Great Group Roofing and couldn?t be happier with the experience. From the initial estimate to the completed roof installation, the team was professional, punctual, and highly skilled. They kept the worksite clean, communicated clearly throughout the project, and completed the job on schedule. The quality of workmanship exceeded my expectations, and my new roof looks fantastic. If you?re looking for a reliable roofing company that delivers excellent service and quality results, I highly recommend Great Group Roofing!"
Roof Replacement
Roof Installation
Custom Deck build
Chimney
Deck

+15

Response time5 hrs
Response rate99%
Recommended by56%of homeowners
Avatar for Roof Maxx of Hamilton Township, NJ
Roof Maxx of Hamilton Township, NJ
5.0(
5
)
Asphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Install or Replace

Serving Northfield, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

Pam and Brant, both local in South Jersey, saw how often homeowners struggled with aging roofs and expensive replacements. Pam’s work in real estate and Brant’s experience in sales showed them the real benefits of Roof Maxx’s shingle restoration.\n\n In 2024, they brought Roof Maxx to South Jersey and have since helped hundreds of homeowners extend their roof’s life and save thousands. As local owners, they’re committed to honest guidance and real results for their community.

Logo
Roof Replacement
Roof Replacement
Roof Replacement
Roof Replacement

+1

1 neighbors recently requested a quote
Avatar for ZZeo's Home Renovations
ZZeo's Home Renovations
4.9(
121
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - RepairFlat, Foam or Single Ply Roofing - Repair

Serving Northfield, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Small jobs welcome

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big, or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business!

Response time5 hrs
7 neighbors recently requested a quote
Recommended by88%of homeowners
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Roofing questions, answered by experts

While spotting a bit of algae on your roof may not bother you at first glance, it is certainly bothering your roof shingles. The presence of algae can cause decay and shorten the lifespan of your roof’s shingles, which can lead to much bigger problems down the road. While this issue may seem cosmetic at first glance, it goes much deeper than that.

DIY is not recommended, as slate requires specialized handling and proper underlayment installation for durability.

The most common defect in a flat roof is leaking. Flat roofs have minimal slope, so water pools more readily on a flat roof than on a sloped roof, and the risk of the waterproof membrane failing increases with exposure. Tears and punctures from foot traffic and blown debris are other common problems, especially with single-ply roofing membranes like TPO and EPDM roofs.

The golden ratio for roof pitch is 1:1.62. It’s simply a standard aspect ratio that home and building designers and architects use when deciding how steep a roof should be to maintain visual appeal. The golden ratio can apply to any home or structure with a visible roof that isn't considered a flat roof.

The average cost to winterize a house is about $250, but it can range from $65 to $1,000 depending on the type of work that needs to be done. For homeowners that are experienced DIYers, it can save quite a bit on costs. However, you shouldn’t attempt tasks you aren’t familiar with or are potentially dangerous.

The Northfield, NJ homeowners’ guide to roofing services

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