
Chelmsford, MA · Middlesex County
Construction & Carpentry Contractor in Chelmsford, MA
Remodeling, additions, roofing, decks, framing, windows and doors. Fully insured, free estimates.
(508) 598-8704Free Estimate in Chelmsford
No cost, no obligation. We reply within 24 hours.
Building in Chelmsford
For homeowners in Chelmsford, we are a genuine one-stop shop: framing, roofing, windows, doors, decks, remodels and additions, all handled by the same crew. Chelmsford is river-terrace subdivisions above older village centres, with wetland setbacks that constrain rear additions, and we build for that rather than around it.
The reason exterior work fails early in the Merrimack Valley is rarely workmanship on the visible surface. With cold inland winters with heavy snow, spring runoff that saturates low ground, and a freeze season that runs longer than the coastal towns, it is what sits behind that surface, and in Chelmsford we build accordingly.
What makes a Chelmsford lot straightforward or difficult is usually the ground, not the house. With flat river plain and sandy terraces above it, where wetland setbacks decide where an addition or deck can go, that is settled before we price the work.
River-terrace subdivisions here sit on sandy fill that drains fast at the surface but holds water below, so deck and addition footings behave differently than the soil test suggests.
Wetland setbacks constrain rear additions more than zoning does on many of these parcels.
Conservation review is common for rear work, and filing early avoids redesigning after approval.
Our Services in Chelmsford
Why Chelmsford Homeowners Call Us
- Local to Chelmsford - based in Marlborough, minutes away
- One crew for framing through finish carpentry
- Free, no-obligation on-site estimates
- Fully insured, permits and inspections handled
- Serving Middlesex County and the rest of Massachusetts
FAQ
Chelmsford Questions
Yes. Chelmsford is part of our regular service area - we're based at 190 Bolton St, Unit 11, Marlborough, MA 01752 and work throughout the Merrimack Valley and the rest of Massachusetts.

- (508) 598-8704
- 190 Bolton St, Unit 11, Marlborough, MA 01752
- @ofirconstruction
- Serving all of Massachusetts
Free Estimate
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