
Deck Builder in Harwich, MA
Mussato Building Group builds new decks and replaces old ones in Harwich, 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 7 miles away, and we work across Harwich Center, Harwich Port, West Harwich, East Harwich, North Harwich, South Harwich, and Pleasant Lake.
- Family-owned since 2004
- Licensed + insured in MA
- 100+ projects completed
- 5.0 stars from 21 Google reviews
- BBB accredited
Building a deck in Harwich
Harwich stretches from its Nantucket Sound beaches and harbors north to the ponds and cranberry bogs around Pleasant Lake.
Harwich meets Nantucket Sound, with harbors at Saquatucket, Wychmere, and Allen. Close to the sound and the harbors, a deck takes more wind, sun, and salt than one inland, so we use corrosion-resistant hardware and low-maintenance boards where the location calls for it, and we check whether the lot is in a FEMA flood zone before we size the footings.
Homes near Nantucket Sound in Harwich Port and West Harwich often sit in flood zones, while lots up around Pleasant Lake are wooded and farther from salt air.

“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.”
Deck permits in Harwich
We prepare the drawings, file the applications, and schedule the inspections. Here is what a project like this usually needs:
- Building permit from the Harwich Building Department, with footing and framing details on the plans.
- Conservation Commission review if the deck is within 100 feet of a wetland, coastal bank, dune, or salt marsh.
- Flood-zone details on the plans if FEMA maps the lot in an AE or VE zone.
- New composite, PVC, and wood decks
- Deck replacement and tear-out
- Second-story and multi-level decks
- Stairs, landings, and entry steps
- Composite, PVC, cable, and wood railings
- Hot tub platforms framed for the load
- Footings, ledger flashing, and framing to code
- Permits and town approvals
Deck Builder in Harwich: FAQ
Do I need a permit for a deck in Harwich?
Yes, in most cases. A new or rebuilt deck needs a building permit from the Harwich Building Department. If the lot is near a wetland, dune, or the shore, the Harwich Conservation Commission reviews it too. We handle the paperwork.
Do you build decks in Harwich Center and Harwich Port?
Yes. We build and replace decks all over Harwich, including Harwich Center, Harwich Port, West Harwich, East Harwich, North Harwich, South Harwich, and Pleasant Lake. Our base in South Yarmouth is about 7 miles away.
What decking holds up best in Harwich?
On a lot close to the sound and the harbors, composite or PVC boards with stainless or hot-dip galvanized hardware are the low-maintenance choice. Farther from the water, cedar and pressure-treated wood also work well if you are willing to clean and stain them every few years.
Can you replace an old deck in Harwich instead of building a new one?
Yes. We remove the old deck, inspect the ledger, posts, and footings, and rebuild on a sound structure. Reusing the footings is possible when they are in good shape and meet current code.
More in and around Harwich
- Deck Builder in Dennis, MADennis Village, East Dennis, South Dennis
- Deck Builder in Chatham, MAChatham Village, North Chatham, South Chatham
- Deck Builder in Brewster, MAWest Brewster, Brewster Village, East Brewster
- Deck Replacement in Harwich, MATear-out and rebuild of old, soft, or unsafe decks
- Basement Finishing in Harwich, MAMedia rooms, gyms, bars, guest suites, and egress windows
- Basement Remodeling in Harwich, MADated or damp finished basements rebuilt from the foundation in
- Basement Egress Windows in Harwich, MACode-size escape windows and window wells for basement bedrooms
- Bathroom Remodeling in Harwich, MATile showers, tubs, vanities, and powder rooms
- Kitchen Remodeling in Harwich, MALayouts, islands, custom cabinetry, and counters
- ADU Builder in Harwich, MADetached guest cottages, in-law suites, and garage conversions
- Deck Builder in Barnstable County, MAAll 15 towns of the county
- Deck Builder on Cape CodThe whole Cape, from Bourne to Provincetown
- How Much Does a New Deck Cost on Cape Cod?Guide
- Composite Decking Cost: What You Are Paying ForGuide
Tell Us About Your Project
© 2026 Mussato Building Group Inc. All rights reserved. Yarmouth, MA, Serving Cape Cod.

