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Top-Rated Flat, foam, or single ply roofing installers and replacers in Nashua - Updated Nov 2026

Avatar for On Top Roofing
On Top Roofing
4.6(
179
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Nashua, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"On Top Roofing is Top of the Line Roofer. Professional delivery with solid quality! Company was hired to correct the issues caused by a prior roofer whose incompetence has cost me additional thousands in repair. On Top Roofing installed a ridge vent that the prior roofer only placed on the roof, re-flashed the chimney where prior roofer failed to install to match new rook lines, re-surface flat rook where prior roofer ignored. In addition, On Top Roofing was used on apartment buildings to help close up the roof and eliminate a bat problem. On the Top Roofing is the only roofing company to use. It takes a while to get on their schedule, but they show when they say the will and do the job they say they will do. Only hire On the Top!! You will not regret."
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+11

Response time11 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Ranch Roofing
Ranch Roofing
4.7(
693
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Nashua, NH and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"I recently had Ranch Roofing install a new roof on my home and I am so grateful I chose them! I honestly cannot say enough good things about this company. From the very beginning, when I was searching for a roofing company, choosing a shingle color, and asking questions (since I know very little about roofing), the entire experience was wonderful. They were patient, knowledgeable, and always took the time to answer my questions and make sure I understood everything. The process was easy and stress-free. On installation day, the crew arrived, put up the tarps, and got right to work. The old roof came off, the new roof went on, and the results are absolutely beautiful! I chose Onyx Black, and I am so glad I did. It looks sharp! The new intake vents and ridge vents were also installed, and everything looks amazing. I had read about their reputation and how they stand behind their work, which gave me confidence in choosing them. They certainly lived up to that reputation. They are wonderf"
Additional Photos
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+2

Response time10 hrs
Recommended by97%of homeowners
Avatar for Nick Tracey Roofing
Nick Tracey Roofing
4.7(
26
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Nashua, NH and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"After talking with Nick On the phone, I knew we be going with him. He was very knowledgeable and knew exactly what was needed. He met us at our house within a day and the repair was done in less than 30 mins. Will need a new roof in a few years and I will definitely use this company to replace ours!"
Insall
Completed
Underlayments
Before
After

+7

Response time2 days
20 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for RB FARINA ROOFING & CONSTRUCTION, INC.
RB FARINA ROOFING & CONSTRUCTION, INC.
4.2(
80
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Nashua, NH and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"These guys are exceptional. We called Farina Roofing to come take a look at our roof which was in need of replacement. Ricardo and Rafael came out promptly to inspect the roof and provided us with an estimate right away. Their professionalism was unparalleled to other companies we met with and we were even more impressed by the quality of their work. Their crew was excellent and we are so pleased with the outcome. We definitely recommend them for any roofing project and would hire them back in the future."
commercial TV RB Farina Roofing Co
commercial TV RB Farina Roofing Co
commercial TV RB Farina Roofing Co
commercial TV RB Farina Roofing Co
commercial TV RB Farina Roofing Co

+32

31 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Small Dog Roofing
Small Dog Roofing
5.0(
21
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Nashua, NH and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Outstanding workmanship and well managed project leader. Attention to detail and great customer service. Highly recommend Small Dog Roofing for all of my and my clients needs."
Full roof replacement
Full roof replacement
Full roof replacement
Full roof replacement
Full roof replacement

+29

Response time2 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Scott's Roofing
Scott's Roofing
4.9(
48
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Nashua, NH and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

"I heard about this company from Home Advisor. I got three names through the site and also contacted a fourth. Scott's Roofing was the first to come out. They were also the lowest bidder. Their proposal was also the most comprehensive and detailed. When Sean Nadeau told me they'd have it done in a day or two, I was sure there was no way. Our house is literally This Old House, and it's also 2½ stories. Not only was the roof (including two porch roofs) completely stripped the first day, the new roof was completely finished also. A second crew came out two days later and installed new gutters and were done in two hours. The roof looks beautiful."
Before and After
Re-Roof in progress
Financing Available! * for qualified candidates!
Response time1 day
Response rate91%
Recommended by97%of homeowners
Avatar for Revive Roofing & Siding LLC
Revive Roofing & Siding LLC
4.5(
44
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Nashua, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Having just had my roof replaced by Revive Roofing & Siding, I can confidently say they live up to their reputation as the best-rated roofing company in Newton, NH. From the initial consultation to the final inspection, every step of the process was handled with professionalism and expertise. Keith and his team were efficient, courteous, and went above and beyond to ensure the job was done right. If you're looking for top-notch roofing services, look no further than Revive Roofing & Siding."
winsor NH
winsor NH
winsor NH
winsor NH
winsor NH

+40

Response time8 hrs
Response rate100%
41 neighbors recently requested a quote
Avatar for KTM Exteriors & Recycling LLC
KTM Exteriors & Recycling LLC
5.0(
7
)
Flat, Foam, or Single Ply Roofing - Install or Replace

Serving Nashua, NH and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"Siding Hardie Siding (Hardie qualified contractor.) James Hardie siding installed on residence. Hardie qualified installers, all Hardie procedures and products used including: edge cut sealer, cutting blades, fasteners and safety program. Excellent work right on schedule A+ rating (Raymond Madore homeowner) Roofing Owens Corning Roofing (Platinum Qualified Contractor) Installed roof on residence complete Owen Corning system including: Ice and water barrier, starter shingles, hip and ridge shingle, ridge ventilation, chimney flashings, valley flashings. One day install including old roof removal and excellent clean up + safety. A+ (Raymond Madore homeowner) KTM Exteriors HAMPSTEAD, NH 03841 Highly recommended. Questions call me. Raymond Madore 11 West Shore Road Windham, NH 7818445746"
Response time1 day
Response rate100%
2 neighbors recently requested a quote
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FAQs for flat, foam, or single ply roofing installation and replacement projects in Nashua, NH

Many roofing pros point to PVC as the top performer on flat roofs thanks to its tough seams and long-term waterproofing. A properly installed PVC membrane can last 30 years or more, resisting ponding water and harsh weather with ease. You will pay more up front than you would for EPDM, but the added durability often translates into fewer repairs and a lower cost per year of service.

Yes, a rubber roof is an environmentally friendly choice. Most rubber membranes contain recycled content and can reflect heat, which helps trim cooling bills in hot weather. Manufacturing has a lighter footprint than many traditional materials, and the long lifespan means fewer tear-offs headed to the landfill. If sustainability is a priority, ask your roofer about brands that carry third-party eco-certifications and confirm they meet local environmental standards.

The Nashua, NH homeowners’ guide to flat, foam, or single ply roofing installations and replacements

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