Local business · Brentwood, NHLocal business · Brentwood, NH
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Coastal Windows and Siding, Inc. replaces windows, siding and roofs. In 2023, a customer wrote that Mike Thibaudeau listened, and that together they came to a solution that kept their older home's look in relation to its other 28 windows; that customer had compared quotes from 2 other companies first. On HomeAdvisor and Angi, the company describes itself as family owned and serving New Hampshire and Southern Maine, and it says it has 30 years in business. A 2023 customer said a job stripping old shingles and underlayment and replacing all of it was done in one day, with the shrubs around the foundation protected. In 2020, a customer said the removal of the existing roof and installation of the new roofing were done in the same 8 hour day, and that they used a magnet on wheels to pick up loose nails. A 2019 customer said the company replaced the vinyl siding on their house with a midnight blue shake style siding, and that the crew worked long hours even when it was quite cold. A 2020 customer described small cottage cedar siding work and metal trim installation that followed a clear and detailed estimate. In 2018, a customer said they installed 2 new construction windows, including 1 where a window did not exist, matched the trim to the existing windows and brought in an electrician to move an outlet. That 2018 customer also said communication wasn't stellar, though the job got done eventually. A 2016 customer said they were very happy with the quality and price of their windows. On HomeAdvisor the company holds 4.9 stars from 15 ratings, and Angi shows 4.9 stars from 15 ratings.
Did the job (stripping old shingles and underlayment and replacing all) in one day. They did a good job of protecting shrubs around the foundation and an excellent clean up.
My windows are being measured by the expert installer, Andy, today. My first meeting with Mike Thibaudeau from Coastal Windows and siding in NH was outstanding. After looking at 2 other companies and getting quotes from them, I decided on Coastal Windows and siding because Mike was very thoughtful, clearly had expertise and product knowledge, and because he is a tremendously good listener, something the other company's representatives did not excel at. He never talked over me and together we came to a solution that worked and kept the integrity of our older home "look" in relation to our other 28 windows! Will use them again when the time comes.
Job we done!! Owner great to work with! Highly recommend. Always in touch, willing to work with any new changes!
Great job, very professional and a pleasure to deal with. Yard was left clean with no debris. Highly recommend.
They did a great job with the removal of the existing roof and installation of the new roofing in the same 8 hour day. They protected all of the scrubs and did a good job cleaning up around the house using a magnet on wheels to pick up the loose nails. Thanks Bob H.
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Certified attributes are verified against the public registry. Others are the business's own statement.
1 change recorded — last scanned Oct 23, 2026.
Typical your area range for this kind of work, from regional averages — not a quote from Coastal Windows and Siding, Inc.. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,000 – $11,000
Typical exterior project around $7,500
Owner on the job installing windows5.0