Specializing in Flat Roof
Repair & Replacement

Family Owned & Operated
3rd Generation Roofing Contractors
Serving Boston since 1969

Family Owned & Operated
3rd Generation Roofing Contractors
Serving Boston since 1969

(617) 544-7556

Family Owned & Operated Since 1969
3rd Generation Roofing Contractors serving Boston

Flat Roofing Reviews & Testimonials

Your feedback helps us to continually improve the roofing services that we provide. Please tell us about your experience using the form at the bottom of the page, and/or click on one of the icons above and review us on Google, Yelp, and Angies List.

Paul is very responsive and followed through with the project on time and for the exact price he quoted. I’ve been recommending him to my other friends who live in Boston.
John G – Charlestown


Quick. Prompt. Very knowledgeable. Thorough. We ended up not needing the major repairs we had feared, and we know we’re going back to Paul when it comes time. Nice to know there are still some folks around who know how to treat their customers and run an honest business.
Geoff D. – Dorchester


It was a pleasure to work with Kostas Roofing. Any anxiousness or questions I had were answered promptly and in plain English. The price was modest and they were always on time. The job took a day longer than originally anticipated – due to severely rotted wood that needed to be replaced. When they finished, everything was cleaned up nicely. We would definitely use them again.
Janice Saxton – Boston, Mass


I manage several 3 decker rentals in South Boston. Working with Kostas Roofing was painless and effortless. Prices were fair, work was professional, ON TIME! Thanks again.
Patrick O. – South Boston


I typically never write referrals. But our recent experience with Kostas Roofing is worth mentioning. After a recent major storm, one of our ceilings came in on us in the back bedroom. We had water, soggy insulation, and broken sheet rock all over the floor. Based on a referral, we called Paul at Kostas and he came right out. The damage was extensive. Paul wrote us up an estimate, and said he’d be happy to get started on it right away. We told him that we still wanted to get a couple more quotes, and that we’d get back to him. We called two more roofing contractors that morning. The first one didn’t have time to come out that morning, but he gave us a rough estimate over the phone, indicating that he might be able to take care of it in a few days. Considerably higher than Kostas, we called a second roofer. He said he’d be right out to check out the roof. We waited for 2 hours before we called him back. He apologized, said he was in route, and would see us in about 1 hour. After another hour and 45 minutes, we called him a third time (and 4th,5th..) – no answer, no show. It’s now about 5 pm, and what had started out as a clear day was now quickly looking like rain. We called Paul back at Kostas, and again, he came out immediately with his brother Nick and crew, and got to work. By sunset, they had the old roofing torn off and set us up with an emergency patch until morning. They came back out at 8 am, and had the roof finished up by noon. What an efficient crew! Best experience we’ve had with a contractor.
Abe Collins – Somerville, MA


Thanks for the good job on the roof repair.
Mary G. – Chelsea, Massachusetts


I called three different roofing companies – Kostas was the first to show up. They quickly surveyed the leak, and clearly explained our options for addressing the issue. The entire roof needed to be replaced, including some wood replacement where the water had been getting in – this was much more than the simple roof repair we were hoping for. Money was tight – and I simply didn’t have the money to pay for the roof. Regardless, they started replacing the roof that same day – and allowed me to pay it off in 3 payments. Bless you!
Fred D. – Cambridge, Mass


Kostas came to my home and used infrared goggles to pinpoint exactly where my roof was leaking. I was amazed with their work and how quickly they were finished.
J. T. – Woburn, MA


Excellent. Estimate was fair, work was satisfactory, and they didn’t ask for any money up front.
Thomas P. – South Boston, MA


Paul & his brother Nick repaired our roof three months ago – we’ve had 5 good storms since then, still no leaks. So far so good!
Jason S. – Framingham, Massachusetts

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Flat Roofing Suppliers Boston

Residential & commercial flat roofing contractor specializing in flat roofs, flat roof repair, flat roof replacement, rubber roofs, rubber roof repair, rubber roof replacement, EPDM roofing, and tar & gravel roofs. Our service area includes, but not limited to Boston, Cambridge, Chelsea, Dorchester, Framingham, Medford, Newton, Somerville, Waltham, Woburn, & Worcester, Massachusetts.