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Location and Projects

Address
95 Stow Rd, Marlborough, MA, 01752
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Mainsail Construction

Mainsail Construction, 95 Stow Rd, Marlborough, MA holds a Home Improvement Contractor license according to the Massachusetts license board.

Their BuildZoom score of 92 ranks in the top 32% of 139,240 Massachusetts licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring Mainsail Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Mainsail Construction Contact Information

Phone: (508) 680-4001
Address: 95 Stow Rd, Marlborough, MA 01752

Mainsail Construction Reviews
5 out of 5 stars, based on 1 review

  • By Mark D.
    November 2, 2025
    Install a Hide-A-Door

    10/10 — If I Could Give More Than 5 Stars, I Would!

    I wanted to take a moment to provide the most favorable review possible for Mainsail Construction of Marlborough, MA. From start to finish, Kevin Kelly and his crew were absolutely top-notch.

    They recently installed a Hide-A-Dorr at my home in Upton, and I can honestly say the experience exceeded every expectation. Their craftsmanship was outstanding, and the care they took while working in my home was exceptional. They arrived right on time, completed the job exactly when they said they would, and left the workspace spotless. You’d never even know they had been there.

    What truly stood out, beyond the skill and precision of their work, was their professionalism. Every interaction reflected integrity, courtesy, and pride in their craft. It’s rare these days to find a team so clean, careful, and conscientious, and it made the whole experience an absolute pleasure.

    I would highly recommend Mainsail Construction without hesitation and will absolutely have them back for future projects. Reviews help people understand a company’s true character, and in this case, Mainsail’s ability, attitude, and attention to detail are second to none.

    If I could give them 10 stars, I would.
    Kevin and Scott, we thank you from the bottom of our hearts for a job beautifully done!

    — Mark Donnelly, Upton, MA

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Building Permits by Mainsail Construction

Sort by: Notable Notable | Date Date | Job Value Job Value
Bfdgeneral
2013-09-10
Bfdventfir: general permit for install of 3 ventless natural gas fireplaces
Valuation:
$0
Permit #:
GP283454
Status:
Closed
Fee:
$38
Permit Type:
N/A
Building Type:
N/A
Bfdgeneral
2013-09-10
Bfdventfir: general permit for install of 3 ventless natural gas fireplaces
Valuation:
$0
Permit #:
GP283458
Status:
Closed
Fee:
$38
Permit Type:
N/A
Building Type:
N/A
Bfdtempdmp
2012-11-20
Temporary placement of (1) dumpster for debris removal from construction renovation work
Valuation:
$0
Permit #:
TD200253
Status:
Closed
Fee:
$135
Permit Type:
N/A
Building Type:
N/A
Interior renovation to include minor demolition and re-construction of 2- apartments
Valuation:
$0
Permit #:
FDC200251
Status:
Closed
Fee:
$211
Permit Type:
N/A
Building Type:
N/A
Street
Valuation:
$0
Permit #:
OCCU-152879
Status:
Closed
Fee:
$92
Permit Type:
N/A
Building Type:
N/A