
Basement Waterproofing in Osterville, MA
Mussato Building Group finds and fixes basement water problems in Osterville, 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 12 miles away, and we work across Osterville village, Wianno, and Oyster Harbors.
- Family-owned since 2004
- Licensed + insured in MA
- 100+ projects completed
- 5.0 stars from 21 Google reviews
- BBB accredited
Waterproofing a basement in Osterville and Oyster Harbors
Osterville is one of the seven villages of Barnstable, on the south side of town along Nantucket Sound, with its center on Main Street, the Wianno shore on East Bay, and Oyster Harbors, a gated community on Grand Island reached over a drawbridge.
Near the bays and the sound and in low areas, groundwater can rise after heavy rain. In Osterville, we start with the outside, gutters and grading, and add an interior drain and a sump pump only where the water keeps coming in.
Near West Bay, East Bay, and Nantucket Sound, groundwater can rise after heavy rain, especially on lots in a flood zone. Most Osterville lots are on septic, so the sump pump discharges outside and away from the leach field, and digging along a foundation within 100 feet of a wetland or coastal bank goes to the Barnstable Conservation Commission first.

“Mussato Building Group has been a loyal and trusted partner of ours for over ten years and one hundred projects. Their professionalism and quality of work are second to none. We look forward to working with them far into the future.”
Waterproofing permits in Osterville
We prepare the drawings, file the applications, and schedule the inspections. Here is what a project like this usually needs:
- Electrical permit for a new sump pump circuit, pulled by a licensed electrician.
- The Barnstable Conservation Commission review if digging is within 100 feet of a wetland, coastal bank, or the shore.
- Inspection to find where the water gets in
- Gutter, downspout, and grading fixes
- Foundation crack and pipe gap sealing
- Interior perimeter drains
- Sump pumps with battery backup
- Exterior waterproofing and footing drains
- Moisture control before finishing
- Permits where the work needs them
Basement Waterproofing in Osterville: FAQ
Do you waterproof basements in Osterville village and Wianno?
Yes. We waterproof basements all over Osterville, including Osterville village, Wianno, and Oyster Harbors. Our base in South Yarmouth is about 12 miles away.
Do you waterproof basements in Oyster Harbors?
Yes. Oyster Harbors is part of Osterville, so any permits come from the Town of Barnstable. Because the community is gated, we confirm access and work hours before we schedule.
Can a sump pump drain into my septic system?
No. A septic system is built for wastewater only. The discharge line runs outside, away from the foundation and the leach field.
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