Top-rated roofers.

Get matched with top roofers in Dover, NH

Enter your zip and get matched with up to 5 pros

TRUSTED BY DOVER, NH HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon490
    Verified roofing services reviews

Find Roofers in Dover

Avatar for Adam Vaillancourt Roofing & Gutters
Adam Vaillancourt Roofing & Gutters
4.7(
78
)

Serving Dover, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"We are extremely happy with our new roof. The crew manager Jeremy was diligent about how things were going and done. He answered any and all questions we had. His crew worked extremely hard in extreme heat. We don’t have any trees near our roof so they were in the sun all day. They never slowed down they kept a steady pace. They were at our home 2 days, they worked cash a team to complete the job and the clean up was done with precision each day. People going by we’re impressed with the professionalism of your company and of an amazing job. One of our neighbors is interested in your company doing his roof. We would highly recommend your company. Our new roof makes our house stand out in the neighborhood. Thank you Jeremy and Crew"
Gutter replacement Old gutters were poorly installed and improperly pitched.
New roof replacement in Jaffrey, NH with Owens Corning shingles and Platinum warranty.
Before and after photo of a house we did in Hancock NH. One of our favorite areas to work! We did this job in one day with Owens Corning shingles with a Platinum warranty. The last roof these homeowners will ever need.
Full roof replacement in Mont Vernon NH. Roof had cracked ridge cap, seal failure and was high nailed.We replace the roof in 1 day.
Response time1 day
Response rate94%
14 neighbors recently requested a quote
Avatar for Long Home
Long Home
4.2(
95
)

Serving Dover, NH and surrounding areas

Approved

In business since 1945

Free estimates

Warranties offered

"Long Roofing went above and beyond when installing our roof and gutter. The job turned out more difficult than we thought it would be but Long Roofing made me feel comfortable and reassured that they would fix everything. Everyone involved from the salesperson to customer service listened to our needs and treated me with respect. The roof looks amazing. I don't want to get into price, but even though you may get someone less expensive, using Log Roofing was well worth a little extra cost"
249 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Tar Star Roofing
Tar Star Roofing
4.9(
77
)

Serving Dover, NH and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Tar Star Roofing (Anthony) responded in one day, inspected my roof and provided a quote the next day. The crew started work a couple days later, very professional, experienced and courteous. They completed the job on time and to my complete satisfaction. Communications from Anthony were constant, including recommendations on additional repairs as damage was found, photo documentation and expert advice. I highly recommend Tar Star Roofing for any roofing needs."
Response time11 hrs
201 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for James & Whitney Co.
James & Whitney Co.
4.7(
12
)

Serving Dover, NH and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"The crew at James & Whitney co were extremely friendly, courteous and went out of their way to make sure that we were happy with our new roof. The job was done fast and is of wonderful quality. Beyond that, this is a company that truly stands behind their work, as they have reached out to me several times in the past few months to ask how the roof is holding up. I truly couldn’t recommend James & Whitney highly enough to anyone who needs work done on their roof."
Winter ready roof replaced by James & Whitney co.
Custom gutter systems by James & Whitney co.
New energy efficient windows by James & Whitney co.
Full roof installation by James & Whitney co.
Finished home siding job by James & Whitney co.

+2

Response time2 days
Response rate86%
58 neighbors recently requested a quote
Avatar for United Home Experts & United Painting Co
United Home Experts & United Painting Co
4.4(
186
)

Serving Dover, NH and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"They did a great job with my roofing project. Erik was great to work with, he was fast, honest, and friendly and Scott's install team was incredibly professional. My roof looks awesome. Would highly recommend and will work with them again for our windows."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

Response time1 day
Response rate97%
82 neighbors recently requested a quote
Avatar for Derek Cook's Roofing Specialists Inc
Derek Cook's Roofing Specialists Inc
4.9(
124
)

Serving Dover, NH and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Derek and his team did an outstanding job replacing our roof and skylights . They were on time, knowledgeable and cleaned up after themselves . Roof now looks amazing and I am in LOVE with our new skylights ! I highly recommend them !"
Roofing Projects
Roofing Projects
Roofing Projects
Roofing Projects
Roofing Projects

+48

Response time4 days
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Revive Roofing & Siding LLC
Revive Roofing & Siding LLC
4.5(
41
)

Serving Dover, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Quality firm that does great work. They put a new roof on 12+ years ago and recently came out to give us a "tune-up". Cement roof tiles. Looks like new. No issues and very responsive. Good folks."
winsor NH
winsor NH
winsor NH
winsor NH
winsor NH

+40

Response time9 hrs
Response rate96%
62 neighbors recently requested a quote
...
Showing 1-10 of 303
Roofing questions, answered by experts

A roof can collapse from a leak if the leak is left unattended long enough. A collapse will happen when the structural components of your roof become saturated with water over time. The roof deck or rafters can slowly weaken until they can no longer support the weight of your roof.

Yes, a roof blister can cause a leak if it gets to the point where it pops. Prior to popping, a roof blister is just an aesthetic issue, but once it pops, you’re left with a small hole in the shingle. Water from rain and snow can easily get inside this hole and interact with your underlayment, roof decking, and the building material below.

While you technically can add a roof over shakes or shingles, it’s not a good idea. Roofing over existing roofing creates a moisture barrier underneath the new roof and since the trapped material is wood, you can expect a moisture problem. While you could get away with installing a new roof over asphalt or steel, wooden roofs should be removed, new underlayment installed, and the new roof installed over that. Also, the extra weight would add strain to your roof structure.

In some cases, yes, you can put a second roof layer over architectural shingles, but it depends on your home’s structural stability and the local building codes where you live. Architectural shingles are thicker and heavier than standard asphalt shingles, so you may need structural reinforcement or a structural engineer’s inspection before proceeding. Additionally, some building departments don’t allow for two roof layers, regardless of the roof type. You should ask a professional if ripping the old roof off before installing the new one is the best option for you.

There’s no single best roofing material for flat roofs, but EPDM is considered an excellent option because it lasts longer than TPO roofing and built-up roofing, and it’s the most adaptive to extreme temperatures and variations in temperature. EPDM can also be highly energy-efficient at both ends of the climate spectrum, with black EPDM helping to reduce heating bills and white EPDM helping to keep your building cool in extreme summer temperatures.

The Dover, NH homeowners’ guide to roofing services

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