
Basement Egress Windows in Brewster, MA
Mussato Building Group installs basement egress windows in Brewster, MA. We are a family-owned general contractor founded in 2004, with more than 100 projects completed and a 5.0 rating from 21 Google reviews. Our base in South Yarmouth is about 10 miles away, and we work across West Brewster, Brewster Village, and East Brewster.
- Family-owned since 2004
- Licensed + insured in MA
- 100+ projects completed
- 5.0 stars from 21 Google reviews
- BBB accredited
Egress windows in Brewster
Brewster sits on the bay side of the Lower Cape, with sea captains’ houses along Route 6A and quiet neighborhoods around its freshwater ponds and Nickerson State Park.
An egress window is usually what makes a basement bedroom legal. Brewster homes are on septic systems, so a new bedroom always starts with the septic design. On septic, the new bedroom also needs the Brewster Board of Health to confirm the system can carry it under Title 5, so we check that before we cut the foundation.
Near the bay and the ponds, groundwater and heavy rain are the main risks for a new window well. We build the drainage at the bottom of the well and grade the soil around it so water moves away from the opening.
In the Old King’s Highway district of Brewster along Route 6A, an egress window on a side of the house that can be seen from the street can need a certificate from the Brewster Old King’s Highway committee. We place the window where it works for the room and for the review.

“I’ve worked with Joe and his team on several projects and the workmanship is consistently excellent. Their attention to detail and the ease of communication is second to none. Highly recommended.”
Egress window permits in Brewster
We prepare the drawings, file the applications, and schedule the inspections. Here is what a project like this usually needs:
- Building permit from the Brewster Building Department for the foundation cut and the new opening.
- Review by the Brewster Board of Health under Title 5 if the window is for a new bedroom on a septic system.
- Flood-zone review if the house sits in a FEMA flood zone.
- An Old King’s Highway certificate if the new opening can be seen from a public way in the historic district.
- Code check of the opening, sill height, and well
- Foundation cut for the new opening
- Egress window set, flashed, and sealed
- Window well with ladder or steps where needed
- Drainage at the bottom of the well
- Interior framing, insulation, and trim around the window
- Replacement of small basement windows
- Building permit and inspection
Basement Egress Windows in Brewster: FAQ
Do I need a permit for an egress window in Brewster?
Yes. Cutting a foundation wall is structural work, so the Brewster Building Department issues a building permit and inspects the opening. We handle it.
Do you install egress windows in West Brewster and Brewster Village?
Yes. We install basement egress windows all over Brewster, including West Brewster, Brewster Village, and East Brewster. Our base in South Yarmouth is about 10 miles away.
What size does the egress window need to be?
At least 5.7 square feet of clear opening, at least 24 inches of clear height and 20 inches of clear width, with the sill no more than 44 inches above the floor.
Does a basement bedroom in Brewster need anything else?
Enough ceiling height, and septic or sewer capacity for the extra bedroom. Brewster homes are on septic systems, so a new bedroom always starts with the septic design.
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