
About Thornton Garage Doors
For over 42+ years, we've been the trusted name in residential garage door services throughout New Hampshire.
Our Story
Thornton Garage Doors was founded with a simple mission: to provide homeowners with exceptional garage door services backed by integrity, expertise, and genuine care. What started as a small family operation has grown into one of New Hampshire's most trusted garage door companies.
Over the past 42+ years, we've installed, repaired, and maintained thousands of garage doors across the region. Each door tells a story—a new family moving into their dream home, a business owner upgrading their property, or a long-time customer who trusts us to keep their door running smoothly year after year.
Today, we remain locally owned and operated in Thornton, NH. Our team of factory-trained technicians brings the same dedication and attention to detail that built our reputation. We're not just a garage door company—we're your neighbors, committed to the communities we serve.

Our Core Values
These principles guide every interaction, every repair, and every installation we complete.
Integrity
We do what's right, even when no one is watching. Honest assessments, fair pricing, and recommendations based on your needs—not our bottom line.
Excellence
Good enough isn't in our vocabulary. We pursue excellence in every aspect of our work, from the quality of parts we use to the cleanliness of our work site.
Community
We're more than a business—we're part of this community. We support local causes, employ local people, and treat every customer like a neighbor.
42+
Years Experience
4861+
Happy Customers
3-Year
Warranty
100%
Satisfaction Rate