4.5 
647 *The Angi rating for Roofing companies in Williamstown, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.
*The HomeAdvisor rating for Roofing companies in Williamstown, NJ is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.
Last update on November 19, 2025
Serving Williamstown, NJ and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Best roofing company in the business thank you Garden State Roofing and Chimney!"
+23
Serving Williamstown, NJ and surrounding areas
Approved
In business since 2004
Free estimates
Credit card accepted
"I contacted Done Rite Roofing after noticing missing shingles. They responded quickly and repaired the roof the same week. Solid workmanship and fair pricing."
Serving Williamstown, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Credit card accepted
"I highly recommend this company. They just finished replacing my roof - they did the roof in a timely fashion ahead of schedule and the roofer did an amazing job."
Serving Williamstown, NJ and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"Great, they found loan company for me with terms I could afford, notified me they could start roof within two weeks. When the day came they were finished in one day. They cleaned up after themselves and the roof looks well done."
+4
Serving Williamstown, NJ and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1994
Free estimates
Warranties offered
"I just had my roof replaced with Lane Roofing. Shawn Keys was very honest and helpful. He inspected my roof and told me everything that needed to be repaired and replaced and updated me through the whole process and shared photos from start to finish. The crew was great. They showed up early and cleaned up like they were never there. I would highly recommend Lane Roofing & Exteriors."
Serving Williamstown, NJ and surrounding areas
Approved
In business since 2001
Free estimates
Emergency services offered
"Yes Tony the Owner was exceptional to work with! Had job done in a timely fashion and came right out when I had a leak in my roof to temporarily fix until it was replaced. Would highly recommend! ⭐️⭐️⭐️⭐️⭐️"
+11
Serving Williamstown, NJ and surrounding areas
Approved
In business since 2013
Free estimates
Warranties offered
"Florida room roof had to be replaced, a small job. The crew that came out to replace it did the entire replacement (turned out to be 2 roofs one on top of the other) in about 3 hours. They cleaned up everything including doing a magnetic sweep of the areas wheee they had been working. Iâ m very pleased with the result."
+22
Serving Williamstown, NJ and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Having been "burned" by a prior roofing contractor I was skeptical about finding the right contractor to do my new roof. Listen up people...you want a good contractor don't use this company...You want an EXCEPTIONAL contractor call American Construction. Everything and MORE was done as promised and completed in ONE DAY!!! Greg Dobkin,OM, Joe Gura, PM and Chris the owner even made periodic visits throughout the day to ensure the roof was being done correctly and to my satisfaction. No shortcuts or addon cost! I can guarantee you will NOT be disappointed!!!!!"
+27
Serving Williamstown, NJ and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"They did a phenomenal job soft washing my house. Highly recommend Roof Wizard !!"
+3
Serving Williamstown, NJ and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1975
Free estimates
Emergency services offered
"Jim personally took care of my roofing project. Crew was very thorough, could not be happier with the result. Would use for ANY other project"
+4
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