
Basement finishing and remodeling for Worcester County and MetroWest homes
The extra room your family keeps wishing for may already be under your feet. We finish and remodel basements into family rooms, offices, gyms and guest space that feel like part of the house, and we deal with moisture before a single wall goes up.
- Moisture checked before finishes
- Permits and inspections handled
- Licensed in Massachusetts and insured
- Labor warranty
- Free written estimates
Basement remodeling at Gamache Construction
Gamache Construction finishes and remodels basements for homeowners in Worcester County and MetroWest from its office in Northborough, Massachusetts. The work runs from replacing failed basement flooring to full finishes with framing, insulation, electrical, lighting, a bathroom, storage and rooms such as offices, gyms and entertainment space. The family-owned company has been in business since 2006; owner Chris Gamache runs its three crews and brings in licensed plumbing and electrical trades as each basement needs them. Moisture is evaluated before any finishes go in. Permits and inspections are handled by the company, estimates are free and written, and labor carries a warranty. Basements are one of its renovation and remodeling services.
What can a finished basement be used for?
Almost any room that does not need much daylight. These are the spaces homeowners ask us for, and the work behind each.
Family and entertainment rooms
A second living room for movies, games and the kids, wired for the TV and sound you plan to put there.
Home offices
A quiet room with a door, good lighting and enough outlets, away from the household upstairs.
Home gyms
Durable flooring and the electrical capacity and ventilation that equipment needs.
Guest space
A room for visitors, with a bathroom nearby. A sleeping room needs a code-compliant escape window or door.
Bathrooms
A full or half bath, subject to where the drains sit, the plumbing permit and code requirements.
Wet bars and kitchenettes
Cabinets, a counter and a sink for entertaining downstairs, like the projects pictured on this page.
Storage
Built-in shelving and closets that keep the mechanicals reachable and the rest of the house clearer.
New flooring
Old basement flooring that has gapped, lifted or worn out, removed and replaced on its own.
Basement project photos


Why we check for water before we frame a single wall
A basement sits below grade, where groundwater and roof runoff press against the foundation. Drywall, carpet and wood framing put over a damp foundation will trap that moisture, and the result is mold, odor and a room you have to tear out. So moisture and waterproofing concerns are evaluated before any finish goes in, and they are part of the written scope when they need work.
- We look at the foundation walls and floor for signs of water, staining and efflorescence.
- Moisture and waterproofing concerns are evaluated before framing starts.
- Ventilation is improved so the finished space does not hold damp air.
- The layout and finishes are planned with you, including flooring that tolerates basement humidity, such as vinyl plank.
- Plumbing and electrical trades are coordinated by our crew, and we handle the permits.
Basement flooring that had developed gaps, replaced
Gamache did an excellent job on some flooring and painting for us! We had some flooring in our basement removed and replaced because the old flooring had developed gaps. The new flooring is great quality, and installed very well. They also painted the walls for us.
5.0 out of 5 on Google from 34 reviews. Read all reviews
From an unfinished basement to a finished room
Walk the basement
We go downstairs with you, check for moisture, note the mechanicals, ceiling height and drain locations, and talk about how you will use the space.
Write the scope
A free written estimate covering the moisture work, framing, utilities and finishes, with options and pricing.
Finish the space
Permits pulled, then moisture control, framing, insulation, electrical and plumbing rough-in, inspections, drywall, flooring and trim.
Final walkthrough
We go through the finished basement with you before close-out, with our labor warranty behind it.
What does it cost to finish a basement?
A basement is priced from what we find on the walkthrough, so the number lives in your written estimate. Here is where basement budgets go.
Financing your basement
Financing is available for basement projects. The financing page has the details.
Financing- Moisture workA dry basement needs little; one with water coming in needs it solved before anything else.
- Square footage finishedHow much of the basement becomes living space and how much stays as utility and storage.
- A bathroom or wet barNew plumbing, and a pump system if fixtures sit below the main drain line.
- Working around mechanicalsBoxing in ducts, pipes and beams, and keeping the furnace, water heater and panel accessible.
- Flooring and finishesVinyl plank, tile or carpet, plus doors, trim, lighting and built-ins.
Do you fix moisture problems before finishing?
Yes. Moisture and waterproofing concerns are evaluated first and handled before any framing, drywall or flooring goes in.
Can you add a bathroom in the basement?
Yes, subject to the plumbing conditions, permits and code. If the new fixtures sit below the main drain line, a pump system is needed to lift the waste.
Can a finished basement have a bedroom?
Yes, if it has an emergency escape opening. The building code requires a sleeping room to have a window or door large enough to get out through, and adding a bedroom on a septic system also brings in the local board of health.
Do I need a permit to finish a basement?
Yes. Finishing a basement needs a building permit, plus electrical and plumbing permits for that work, and we handle the permits and inspections with your town.
Can you just replace the flooring?
Yes. We remove failed basement flooring and install new flooring without remodeling the rest of the space, and we can paint the walls as part of the same job.
What flooring works best in a basement?
Vinyl plank and tile handle basement humidity better than solid hardwood, and we help you choose based on how dry the space is and how you will use it.
Other ways to get more from the house
Basement remodeling across the region
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.
Find out what your basement can become
Give us a rough idea of the room you want downstairs. We check the space for moisture, note what has to stay accessible, and put the options and pricing in a written estimate.
