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TRUSTED BY SANDOWN, NH HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon619
    Verified roofing services reviews

Top-Rated Roofers in Sandown - Updated Nov 2026

Avatar for All Under One Roof
All Under One Roof
4.7(
131
)
Heating Cable for Roof - InstallAsphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Install or Replace+26 more

Serving Sandown, NH and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"All under one roof did a fantastic job removing two layers of shingles and installing new roof. The whole team was hard working and completed the job in one day. When they were done my yard was cleaned of all debris. I highly recommend All Under one roof."
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+26

Response time6 hrs
5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Scott's Roofing
Scott's Roofing
4.9(
48
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - Install or Replace - For BusinessFlat, Foam, or Single Ply Roofing - Install or Replace+3 more

Serving Sandown, NH and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

"Three weeks ago I decided to replace my 30 year old. I Googled roofing contractors and happened upon Scottâ s Roofing . I started reading their reviews and they were all five star and very complimentary. I called and talked to Sean Nadeau, one of the principals in the company.and he promptly sent a detailed proposal including the workmanâ s Compensation & General Liability insurance certificates. I then called and spoke to Darby Sullivan, office manager and she was very patient while we finalized the contract. Scott â s Roofing arrived on time, stripped and replaced the roof in the most professional way. Kevin, an on-site supervisor was present. Sean also arrived mid morning to check on the progress. The crew worked very hard and I could not have been more pleased with the outcome of the roof installation. I would like to thank Sean, Darby, Kevin & the crew for all of their hard work and attention to detail. This review, like all of the other reviews, merits the five star rating. Use â Scottâ s Roofing â and you will not be disappointed. Henry J. Pagliarulo"
Before and After
Re-Roof in progress
Financing Available! * for qualified candidates!
Response time1 day
Response rate91%
Recommended by97%of homeowners
Avatar for Small Dog Roofing
Small Dog Roofing
5.0(
21
)
Asphalt Shingle Roofing - RepairFlat, Foam, or Single Ply Roofing - Install or ReplaceTraditional Tile Roofing - Repair+9 more

Serving Sandown, NH and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I bought my home last year and with it came a roof that had seen better days. Jonathan from Small Dog Roofing did a great job walking me through the process for a full replacement and I could not be happier with the quality of service and product. Definitely recommend for your roofing needs!"
Full roof replacement
Full roof replacement
Full roof replacement
Full roof replacement
Full roof replacement

+29

Response time2 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for United Home Experts & United Painting Co
United Home Experts & United Painting Co
4.4(
186
)
Asphalt Shingle Roofing - Install or Replace

Serving Sandown, NH and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"it went great. After I called them, I didn't have to wait a long time for an appointment. The gentlemen providing the service was professional and courteous. He didn't try to sell me something I didn't need but made me aware of the overall condition of the roof."
Additional Photos
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+10

Response time1 day
Response rate100%
41 neighbors recently requested a quote
Avatar for JP Carroll Roofing - Boston
JP Carroll Roofing - Boston
4.8(
20
)
Asphalt Shingle Roofing - RepairAsphalt Shingle Roofing - Install or ReplaceInspection - Roofing

Serving Sandown, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Warranties offered

"JPCarroll did a fabulous job on replacing my complicated, decrepit Victorian roof, completing it in a timely way and against adversity – they did the whole thing in the month of January in freezing temperatures and sometimes snow and ice. I interviewed five other roofers. However, their sales person took more time and provided far more specificity than any of the other others. Their bid was not the cheapest but turned out to be the best value by far. They went the extra mile to resolve many unforeseen problems, and the quality of work was high. Everyone I dealt with, owners, staff, and laborers, were courteous and responsive throughout. The job supervisor, Kevin, was thoughtful and included me on numerous decisions. Luke Carroll, production coordinator for the job, was always available to help, as was everyone else, even on weekends. They coordinated well with my carpenter, replacing a significant amount of trim, siding, and more as a team. The people doing the actual labor worked"
JP Carroll Roofing
JP Carroll Roofing
JP Carroll Roofing
JP Carroll Roofing
JP Carroll Roofing

+14

141 neighbors recently requested a quote
Avatar for OTB REMODELING
OTB REMODELING
5.0(
16
)
Metal Roofing - Install or ReplaceAsphalt Shingle Roofing - Install or Replace

Serving Sandown, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"OTB was great to deal with. Wind storm ripped half the shingles off of my garage, Chris came out the next day to give me a quote. Price was excellent and the job was done a week later. His contractor was well informed and professional, and left my home looking better than ever. I would highly recommend using them for any project."
Front
Back
Side 1
Side back
After

+21

Response time9 hrs
Response rate100%
1 neighbors recently requested a quote
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Roofing FAQs, answered by experts

Asphalt roofs provide better insulation than metal roofs, but that doesn’t always mean that asphalt roofs are better for reducing heating and cooling bills. In hotter climates, metal roofs will usually be better for home efficiency because the material reflects more sunlight and reduces solar heat gain. In colder climates, asphalt roofs are sometimes superior in terms of efficiency because they introduce more solar heat gain to your home and have greater insulating capabilities. However, metal roofs installed with an air gap can provide similar levels of insulation.

The common formula for measuring a roof is length x width equals square footage. Professional roofers measure the length and width of your roof, including dormers, and determine its pitch and rafter sizes. If a roof surface is a triangle, they’ll divide that square footage by two, then add up the square footage of each surface to get the total for the roof.

Roofers most often use nails to fasten roofing shingles and other roofing materials. Nails have more holding power than staples and offer better weather resistance and longevity. However, it is possible to use staples instead of nails when installing a roof. Staples are less expensive, but not as high-quality.

No, you do not need gable vents if you have a ridge vent. In fact, gable vents would actually interrupt the process that ridge vents are set to conduct. You would be better off to decide between the two depending on your home’s needs.

While there are many benefits to installing a metal roof on your home, there are some downsides, too. Zinc roofs, in particular, are susceptible to corrosion from overly salty air directly near coastal areas. Another potential downside of zinc roofing is that it must be allowed to expand and contract with the weather. This means special attention is necessary to how it's fastened to the home to avoid issues. 

The Sandown, NH homeowners’ guide to roofing services

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