
Westborough, Massachusetts
Bathroom Renovation in Westborough, MA
Local bathroom remodels, walk-in showers, and full gut renovations for Westborough homeowners. Schluter waterproofing systems. Westborough permits pulled in-house. 5.0★ average from 24 homeowner reviews.
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On-site quote, firm number, no high-pressure sales. Response within 1 business day.
Licensed & Insured
Massachusetts HIC #211749
Lifetime Warranty
On our workmanship
5.0 / 5.0
24 homeowner reviews
520+ Projects
Since 2014
Serving Westborough
Bathroom renovations built for the way Westborough homes are actually built.
Westborough sits where Route 9 meets I-495 and the Mass Pike, at the headwaters of the Sudbury and Assabet rivers, with its own stop on the Framingham/Worcester commuter rail line. Commonwealth Bath Co. remodels bathrooms throughout the town.
The housing here runs heavily to 19th-century homes in and around the historic districts, plus colonials, capes and split-levels from the decades after the highways arrived, and that shapes almost every decision on a bath project — what the waste line is made of, whether the subfloor will carry tile, and how much of the budget disappears behind the walls before anything decorative gets installed. The older homes near the center bring plaster walls, lead paint and framing that is rarely square. The newer colonials usually have a builder-grade tub and surround that is ready for a tub-to-shower conversion or a proper rebuild with real waterproofing behind it.
Every Westborough project gets the same three things: an on-site walk before we quote, a fixed itemized price that does not move unless you change the scope, and one crew from demo through final inspection. We pull the building, plumbing and electrical permits and hand you the closed card at the end.
Nearby, we also work in Northborough, Southborough and Shrewsbury. See every town we cover, or our Massachusetts bathroom remodeling guide for costs, timelines and the process we follow on every job.

Service zip codes
01581
Roughly 7 miles from our Shrewsbury office.
Worth knowing in Westborough
Local details that matter.
Permits and inspections in Westborough
Massachusetts issues building, plumbing and electrical permits separately, and each carries its own inspection. We file all of them with Westborough's building department, schedule the inspectors, and close the permit out at completion. An open permit is a problem you inherit at closing, so we do not leave one behind.
Lead-safe work in pre-1978 homes
A large share of Westborough's housing predates 1978, which puts it under the EPA RRP rule and the Massachusetts Lead Law. On those homes, containment, HEPA filtration and verified cleanup are part of the job rather than a line item you get surprised by.
What actually drives the price
Two Westborough bathrooms that look identical can differ substantially in cost. Moving the toilet or shower drain means opening the floor. Cast-iron waste has to come out. A rotted subfloor under a leaking tub adds framing work. We find these on the walk-through, not halfway through demo.
Guaranty Fund protection for Westborough homeowners
Because we are registered with the Massachusetts Office of Consumer Affairs, your project is covered by the state Home Improvement Contractor Guaranty Fund. Hiring an unregistered contractor forfeits that protection entirely — it is the single strongest reason to check registration before you sign.
Services in Westborough
Everything we build.
Questions from Westborough
Most-asked about bathroom remodels in Westborough.
Every Westborough project starts with an on-site walk so we can see the existing plumbing, the subfloor and the wall construction before quoting anything. From there you get a firm, itemized written quote — no allowances that balloon later. Scope usually falls into one of four buckets: a cosmetic refresh with no plumbing moves, a full hall-bath gut and rebuild, a tub-to-shower conversion, or a master bath with relocated fixtures. See our pricing guide for what drives cost in each.
The Westborough building department requires permits for plumbing relocation, electrical changes and any structural work such as moving a wall or enlarging the footprint. Massachusetts treats plumbing and electrical as separate permits from the building permit, and each needs its own inspection. Purely cosmetic work — tile, vanity swap, fixture replacement with no pipe moves — usually does not. We pull every permit, coordinate the inspections and hand you the closed permit card at completion. That closed card matters at resale and for your homeowner's insurance.
Massachusetts has the oldest housing stock in the country, so this comes up on most Westborough projects. Any home built before 1978 falls under the EPA Renovation, Repair and Painting rule, and Massachusetts layers its own Lead Law on top for homes with children under six. On those homes, containment, HEPA filtration and verified cleaning are built into the job, not billed as an extra. Read our MA Lead Law guide.
Our backlog typically runs 6 to 10 weeks from signed contract to crew start. If you have a hard deadline — a relative moving in, a closing date, a rental turnover — say so at the estimate stage and we will sequence around it where we can.
Commonwealth Bath Co. works from an office in Shrewsbury and covers Shrewsbury, Westborough, Northborough, Southborough, Grafton, North Grafton, South Grafton, Holden and Leominster. If you are just outside those towns, call and ask. We will tell you straight whether we can take the job.
A standard hall bath gut and rebuild runs 3 to 4 weeks. A master bath with relocated plumbing runs 4 to 6 weeks. A tub-to-shower conversion on its own is 2 to 3 weeks, and a shower-only tile rebuild including frameless glass is about the same. The clock starts the day the permit is in hand, not the day you sign.
Yes. We are registered as Massachusetts HIC #211749 and carry $1,000,000 general liability insurance. Massachusetts registration also means your project is covered by the state Home Improvement Contractor Guaranty Fund — something you lose entirely if you hire an unregistered contractor. We hand over the registration number and certificate of insurance before you sign anything.
Every project is backed by a lifetime workmanship warranty for the original homeowner: defective workmanship is repaired or replaced at no additional cost. It does not cover normal wear and tear, acts of nature, or repairs someone else makes. The full terms are on our warranty page.
All of it, ZIP code 01581. Westborough is one of the towns we cover from our Shrewsbury office.
Ready when you are
Let's start your bathroom.
Free on-site estimate. Firm quote within 48 hours. No high pressure, ever.
520+
Projects Completed
5.0★
24 Homeowner Reviews
1 day
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Get Your Free Bathroom Estimate
On-site quote, firm number, no high-pressure sales. Response within 1 business day.

