
Basement Egress Windows in Sandwich, MA
Mussato Building Group installs basement egress windows in Sandwich, 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 20 miles away, and we work across Sandwich Village, East Sandwich, and Forestdale.
- Family-owned since 2004
- Licensed + insured in MA
- 100+ projects completed
- 5.0 stars from 21 Google reviews
- BBB accredited
Egress windows in Sandwich
Sandwich is the oldest town on Cape Cod, settled in 1637, with historic homes along Route 6A and newer neighborhoods in Forestdale.
An egress window is usually what makes a basement bedroom legal. Most Sandwich homes are on septic systems. On septic, the new bedroom also needs the Sandwich Board of Health to confirm the system can carry it under Title 5, so we check that before we cut the foundation.
Near Cape Cod Bay and the marsh, 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 Sandwich 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 Sandwich 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 Sandwich
We prepare the drawings, file the applications, and schedule the inspections. Here is what a project like this usually needs:
- Building permit from the Sandwich Building Department for the foundation cut and the new opening.
- Review by the Sandwich 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 Sandwich: FAQ
Do I need a permit for an egress window in Sandwich?
Yes. Cutting a foundation wall is structural work, so the Sandwich Building Department issues a building permit and inspects the opening. We handle it.
Do you install egress windows in Sandwich Village and East Sandwich?
Yes. We install basement egress windows all over Sandwich, including Sandwich Village, East Sandwich, and Forestdale. Our base in South Yarmouth is about 20 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 Sandwich need anything else?
Enough ceiling height, and septic or sewer capacity for the extra bedroom. Most Sandwich homes are on septic systems.
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