Home additions and remodeling in Southborough, MA
If you like where you live in Southborough, the house can change instead of the address. We plan additions, kitchens, baths and finished basements around how Southborough lots actually work, including septic, and you see the full scope and price in writing before you commit.
Gamache Construction in Southborough
Gamache Construction, a family-owned general contractor in business since 2006, serves Southborough, Massachusetts, from its office in neighboring Northborough. The company builds home additions such as in-law suites, primary bedroom suites and second stories, and remodels kitchens, bathrooms and basements across all of Southborough’s villages. Owner Chris Gamache runs three construction crews and brings in plumbing, electrical and tile trades as needed. Gamache Construction handles permits with the Southborough Building and Zoning Department at the Town House, provides free detailed written estimates, and warranties its labor.
The local facts that matter for a Southborough project
- Villages
- Cordaville, Fayville and Southville, plus the town center
- Land use (2021)
- 43% residential and 35% open space
- Drinking water
- Town system, with all water bought from the MWRA
- Permits
- Building and Zoning Department, Town House, 17 Common Street
Why septic comes up early on a Southborough addition
Septic is part of life for many Southborough homes. The town Health Department says the vast majority of its time goes to regulating private on-site sewage systems, which it enforces under the state Title 5 code. When an addition adds a bedroom, the system has to be shown to handle it, so we look at the septic situation during the first visit, before the design is drawn up.
The housing stock matters too. Southborough was mostly farms and small mills, and after the Fayville Dam and its reservoirs were built in 1898 the town saw little growth until the high-tech boom of the 1970s. That is why many neighborhoods are far younger than the houses around the town center. The Southborough Center Historic District was listed on the National Register of Historic Places in 2021, and new work on houses there gets matched to the existing trim and rooflines.
Permits go through the Southborough Building and Zoning Department. We file them.
What we build and remodel in Southborough
Additions
In-law suites, primary suites, second stories, sunrooms and mudrooms. See home additions.
Kitchens
New layouts, islands and cabinetry. See kitchen remodeling.
Bathrooms
Tiled showers and new vanities. See bathroom remodeling.
Basements
Living space below the house. See basement remodeling.
Whole-home work
Several rooms at once. See renovation and remodeling.
Painting
Interior painting. See painting services.
Garages and specialty builds
Garages, porches and other specialty construction.
Roofing
Roofs and siding go to Roofing by Gamache, our roofing division.
Can I add a bedroom to a Southborough house on septic?
Yes, if the septic system is designed for it. Under Title 5 the town Health Department has to agree the system can handle the extra bedroom, and we check this before the addition is designed.
Where are Southborough building permits issued?
At the Building and Zoning Department in the Southborough Town House, 17 Common Street. We prepare and submit the applications for our work.
Do I need an architect for an addition?
Not a separate one. Design and construction are handled under one roof, so the plans for your addition are drawn by our in-house architect. We talk through what your addition needs at the estimate visit.
Do you work in Fayville and Cordaville too?
Yes. We work in every part of Southborough, and Fayville has its own page.
How is the work warrantied?
Our labor carries a warranty, and the manufacturer warranties on installed products apply on top of that.
Easy to have in the house
An addition or kitchen means a crew working in your home. Many of our reviews mention how easy and respectful we are to work with. Gamache Construction holds a 5.0 rating from 34 Google reviews.
“They were very professional and did fantastic work. Contractors who are easy to work with are hard to find, but Chris was just that.”
The four steps of a Southborough project
Look at the lot
House, yard, septic and where new space could go.
Price it in writing
Scope, options and pricing before scheduling.
Get approvals
Permits from the Town House and any review the lot needs.
Build it
Chris’s crew and the trades, ending with a walkthrough.
Around Southborough
Our Northborough team works across MetroWest and Worcester County. Towns shown on this site are examples, not a complete boundary for project inquiries. Share your location and the work you are considering so we can confirm coverage for your project.
Thinking about more room in Southborough?
We start with the lot and the septic, then the design. You get a free written estimate before any decision is made.