A well-built home addition should feel like it was always part of the house — not an obvious afterthought bolted onto the side. As a licensed home addition contractor, US Pro Paint & Renovation builds home additions and finishes basements across the South Shore, Greater Boston, and Cape Cod, managing design, permitting, structural construction, and interior finishing under a single contract — unlike home additions contractors who subcontract out each trade separately.
By JR Reis, Owner & President · Last updated July 2026
If any of these sound familiar, then an addition is worth a look:
Bedroom, family room, or general living space additions. We build them to match your home's existing structure and style.
When your lot size limits building outward, we add second story. Then you gain square footage without extending the footprint.
A dedicated primary bedroom and bathroom addition. In fact, this is often one of the highest-return additions you can make.
Practical entry space that adds functional storage and everyday convenience.
Light-filled additions that extend your living space and connect it to the outdoors.
We convert an unfinished basement into usable area & it costs less per square foot.
First, we look at your current layout, the structure, the zoning rules, and your goals. Then we pick the best approach together.
Next, we draw up plans that blend in with your home. After that, we handle all the permits, inspections, and city sign-offs.
We build the foundation, framing, roofing, and outer walls with quality materials, because the addition has to last for decades.
Then we complete the insulation, drywall, electrical, plumbing, flooring, windows, doors, and trim. We match your home’s existing style throughout.
Finally, we check every detail in a thorough inspection. We also leave your property clean, polished, and move-in ready.
Every project is different, so here’s what moves the price:
In Massachusetts, home additions usually run $150 to $400 or more per square foot. So a 400-square-foot addition often runs $60,000 to $160,000 or more. The final price comes down to the type and the finish level. Keep in mind that a finished basement costs less per square foot than building outward.
Primary Service Area (South Shore — closest to our Hingham headquarters): Hingham, Quincy, Weymouth, Braintree, Cohasset, Scituate, Norwell, Hanover, and Marshfield.
Secondary Service Area (Greater Boston & Cape Cod): Cambridge, Newton, Plymouth, Wellesley, Needham, Dedham, and towns across Cape Cod.
The cost of home additions typically runs $150 to $400+ per square foot, depending on type, foundation requirements, and finish level. A 400 sq ft addition generally runs $60,000 to $160,000+. We provide free on-site evaluations with realistic cost estimates before any design or permit work begins.
Master bedroom suites, family room additions, and mudroom additions consistently rank among the highest-ROI room additions in this market. A well-executed addition that adds functional square footage can return 50–80% of its cost at resale.
Yes — additions are among the most impactful home improvements for resale value, particularly in a market where buyers consistently pay premiums for livable square footage. A professionally built, permitted addition increases both assessed value and buyer appeal.
Prioritize a valid Massachusetts contractor license and insurance, demonstrated experience with permitted structural work, a transparent written scope and contract, clear communication, and verifiable local references. We’re fully licensed and insured, handle all permits in-house, and bring 23+ years of addition experience to every project.
Everything — architectural design, permit applications, foundation and structural construction, framing, roofing, exterior work, electrical, plumbing, insulation, drywall, flooring, painting, and final inspection, all under a single contract with one point of contact.
Yes, depending on size, location, and type. Adding a bedroom raises value by increasing bedroom count, a key pricing factor for buyers and appraisers. Adding livable square footage to a home below the neighborhood average size tends to be particularly high-return.
From planning through final inspection, we manage every phase of your addition under one contract. Above all, we design the new space to feel like it was always part of your home.
Get your free estimate, or call (617) 922-6305 to get started.
