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Top-Rated Flat, foam or single ply roofing repairers in Derby - Updated Nov 2026

L&L Contracting LLC
4.6(
31
)
Flat, Foam or Single Ply Roofing - Repair

Serving Derby, CT and surrounding areas

Approved

In business since 1987

Free estimates

Customers say: Super punctual

"L&L made several visit including Saturday and Sunday to evaluate the job and made several suggestions as to the best way to replace the roof without any damage to the interior of our house.They promised to pick a good day to do the job and complete the job in one day. They arrived at about 7:30 AM with a crew of about 10 workers and had the complete roof replaced and the yard completely cleaned up before 4:30 PM. This included new lead flashing for the chimney and replacing 2 sheets of plywood. In addition they guaranteed the workmanship of the roof for as long as we owned the house. We had no problems at all.
"
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Allied Roofing
Allied Roofing
4.9(
43
)
Flat, Foam or Single Ply Roofing - Repair

Serving Derby, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"Very responsive. Came out to look at the roof and give an estimate and returned the next da to repair the roof. They took pictures to show me the issues both before and after."
Fiber board install
EPDM rubber roof install process
Finished EPDM flat roof install
finished EPDM roof install
Synthetic underlayment install process

+14

Response time5 hrs
Response rate99%
98 neighbors recently requested a quote
Avatar for Ace Roofing
Ace Roofing
5.0(
19
)
Flat, Foam or Single Ply Roofing - Repair

Serving Derby, CT and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I recently had asphalt shingle repair done, and I couldn?t be happier with the results. From start to finish, the experience was smooth and professional. They showed up on time, clearly explained what needed to be fixed, and gave a fair and transparent estimate. The quality of the work really stood out?the repaired shingles blend in perfectly with the rest of the roof, and everything looks solid and well-done. They paid attention to detail and made sure the area was clean before leaving. What I appreciated most was their honesty and communication throughout the process. It?s not always easy to find reliable roofing work, but this was definitely a great experience. I?d highly recommend them to anyone needing asphalt shingle repair. Thanks jonathan."
TPO Roof Install
TPO Roof Install
TPO Roof Install
TPO Roof Install
TPO Roof Install

+2

50 neighbors recently requested a quote
Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
122
)
Flat, Foam or Single Ply Roofing - Repair

Serving Derby, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"A soft wall due to improperly installed gutter by some other entity or homeowner caused water to constantly leak into the wall from the exterior roofline. This soft wall grow moldy and become riddled with pests/bugs. The contractor identified the potential issues, agreed to explore and open the walls and discuss the conditions, made sound recommendations for repair and did exactly what was noted in the repair (replaced a load bearing exterior wall, fixed the sill plate, completed the roof, shingles etc. and closed up the walls on the inside with insulation and sheet rock.). The work was timely, well done, the workers were clean as they did the job and kept the rest of the property clean. The manager of the job David Apel was and is an excellent communicator with phone/email/text and photos of processes and progress. I am going to use this company in my own investment endeavors on other properties and projects given the level of finished work, the timing and especially the level of detailed communication."
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1837

Response time1 day
Response rate92%
Recommended by85%of homeowners
G Roofing, LLC
5.0(
12
)
Flat, Foam or Single Ply Roofing - Repair

Serving Derby, CT and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

6 neighbors recently requested a quote
Avatar for A1 Home Improvement, LLC
A1 Home Improvement, LLC
4.8(
19
)
Flat, Foam or Single Ply Roofing - Repair

Serving Derby, CT and surrounding areas

Approved (Corporate)

In business since 1980

Free estimates

Emergency services offered

"I had the roof, siding and gutters replaced on my house. Three different crews performed the work and all of them did a great job. Entire project took about 3 weeks. I am very pleased with the results and would recommend A1 to others"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Response time2 days
Response rate100%
12 neighbors recently requested a quote
Avatar for Overstate Roofing Services Inc.
Overstate Roofing Services Inc.
4.2(
79
)
Flat, Foam or Single Ply Roofing - Repair

Serving Derby, CT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Excellent experience with Overstate Roofing Services. They responded promptly to a massive roof leak at one of my rental properties, and completed the repair with top priority. The free estimate and proactive customer service and support made the undertaking less daunting. Thanks to Avi and his team."
Roof replacement
Roof replacement
1702 neighbors recently requested a quote
Recommended by1%of homeowners
Avatar for LCA Home Improvement
LCA Home Improvement
5.0(
11
)
Flat, Foam or Single Ply Roofing - Repair

Serving Derby, CT and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Carlos and Luis, along with a few day workers, did a great job installing my new roof. They replaced and added copper as needed. They were professional and easy to deal with. I feel that their price was VERY competitive. Looking forward to utilizing their skills on other projects! E.Bednarz"
Response time7 hrs
Response rate88%
Recommended by90%of homeowners
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