Additions and ADUs start with the town, not the drawing: zoning, setbacks, lot coverage, and the permit path decide what can be built. We handle that work, then design and build the addition so it reads as original to the house. Our carpentry and finish work is performed by our own dedicated team, not a rotating cast of unknown crews. Licensed trades such as plumbing and electrical are coordinated and supervised by us. Licensed in Massachusetts, HIC 169948 and CSL CS-110634, verifiable at mass.gov.
Your first payment is a flat Design and Planning fee that counts toward your project total. The Proposal is a firm price and a mutual commitment; the Contract confirms it after measurements and is not a renegotiation. Plan for a possible deviation of up to 10 percent from the estimate as standard budgeting guidance. Scope changes you request are handled by change order.
See the tiers and what each includes →If your project includes cabinets, countertops, or hardware, explore those selections in our own showroom in Waltham.


A whole-house remodeling project on Garland Road in Newton transformed a small home into a 5,500 square foot residence. The project involved installing a…
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Bay State Remodeling skillfully created a new bathroom addition from scratch, seamlessly integrating it with their existing primary bedroom space.
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