
Serving Alton, NH and surrounding areas
Approved
In business since 1945
Free estimates
Warranties offered
"Quick and easy. Roof looks great."

*The Angi rating for Roofing companies in Alton, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.
*The HomeAdvisor rating for Roofing companies in Alton, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.
Last update on November 30, 2025

Serving Alton, NH and surrounding areas
Approved
In business since 1945
Free estimates
Warranties offered
"Quick and easy. Roof looks great."

Serving Alton, NH and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Brian and his crew worked really hard and finished my roof in one day despite a rain delay. They did an excellent job and when they were done everything was back in place and cleaned up. My roof looks fantastic and I know it is one less thing I need to worry about."



Serving Alton, 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."





+40

Serving Alton, 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"





+14

Serving Alton, NH and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"I knew from the start I wanted a metal roof and that I wanted the Permalock product for its quality and durability, and that it looked like the shingle roof we had. The lifetime guarantee and product sold me. The roofers were great, and every night the place was cleaned up, very efficient company."





+4

Serving Alton, 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."





+21

Serving Alton, NH and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
As a family-owned and operated construction and roofing company, we take immense pride in our legacy of delivering top-notch services with a personal touch. With 20+ years of industry expertise, we have cultivated a reputation for excellence, reliability, and unparalleled customer satisfaction. \n \n \n \nOur dedicated team of skilled professionals are not just committed to the construction of your homes or buildings; we are committed to building lasting relationships with our clients. From residential roof construction to large-scale commercial projects, we approach each endeavor with passion, precision, and a genuine commitment to exceeding expectations. \n \n \n \nAt Paragon Exteriors, we believe in consistently building higher expectations and transforming visions into realities, one project at a time. Choose us for your construction and roofing needs, and experience the difference that family values and quality craftsmanship can make.

Serving Alton, NH and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 2004
Free estimates
Small jobs welcome
"Called Adam Vaillancourt Roofing to fix a leak in our roof based on their consistently high customer satisfaction ratings. We met with sales rep Jose Luna, who conducted a thorough inspection and found the leak easily. His presentation about the company and how they do their work was impressive and Jose was very professional and included a video that Jose shot while on our roof in which he explained not just the issues that were found but WHY the work was needed. He never pressured us into agreeing to anything. We signed a contract immediately. Fast forward a few weeks later and Paul Camarro and his crew showed up at the house on time and ready to work. When they were done, Paul showed us photos of the completed repair work, so I knew they delivered as promised. We will absolutely be calling Vaillancourt in a few years when our roof needs to be replaced. Highly recommend!"





+7
Serving Alton, NH and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
"Our project is scheduled for completion. The initial phase of receiving an estimate and securing financing has been very smooth and easy. Maddy Delisle was extremely attentive and patient working with us getting the project through the financing phase. She went above and beyond in answering our numerous questions. If you have a roofing or home improvement project ask for Maddy."

Serving Alton, NH and surrounding areas
Approved
In business since 2004
Free estimates
Warranties offered
"I'm a return customer. They did our replacement windows a few years ago, and they just replaced our asphalt roofing shingles. They did a wonderful job. I was amazed and impressed with how quickly, and how well, they completed the job. I love my new roof."





+114
From average costs to expert advice, get all the answers you need to get your job done.

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