Commonwealth Bath Co.
Bathroom Vanity Installation in Massachusetts

Supplied, set and plumbed

Bathroom Vanity Installation in Massachusetts

Vanity, top, basin and valve replacement across Massachusetts — most jobs done in a single visit without disturbing the rest of the room.

Licensed Massachusetts NKBA Certified 4.9★ / 214+ Mon–Fri 7–6, Sat 8–2

Get Your Free Bathroom Estimate

On-site quote, firm number, no high-pressure sales. Response within 1 business day.

No spam. No high pressure. We call once, answer your questions, schedule the on-site if you want.

Licensed & Insured

MA Home & MA

NKBA Certified

Certified Bath Designer

4.9 / 5.0

214+ reviews

1180+ Bathrooms

Since 2013

Supplied, set and plumbed

The fastest change that actually makes a bathroom feel new.

A vanity swap is the highest-impact thing you can do to a bathroom without a full remodel. It changes the focal point of the room, updates the fixtures you touch every day, and takes a fraction of the time and budget of a gut.

The part people underestimate is the plumbing. Old supply valves seize, P-traps do not line up with a new cabinet's cutout, and a vanity that is a different height or depth exposes unfinished wall and floor. We handle all of that rather than leaving you with a gap and a note.

We supply and install, or install what you have already bought. Either way the old unit goes with us and the room is clean when we leave.

See all of our Massachusetts bathroom renovation services — from full gut remodels to accessible baths, tub-to-shower conversions, and master suite builds across Massachusetts.

Bathroom Vanity Installation in Massachusetts

What's included

Every vanity installation project includes:

  • Old vanity, top and basin removal
  • Haul-off of the old unit
  • New shut-off valves
  • Supply line replacement
  • P-trap and drain adjustment
  • Vanity set level and secured to studs
  • Top and undermount or vessel basin set
  • Faucet and pop-up assembly install
  • Backsplash where specified
  • Caulk and seal
  • Wall patching where the footprint changes
  • Mirror and light swap on request

Our Process

How the project actually runs.

No mystery. No surprise delays. Here's the exact sequence.

01

Measure and specify

We measure the rough-in, the supply and drain positions and the clearances so the unit you pick actually fits the room.

02

Remove

Old vanity, top and basin out. Valves shut, lines drained, everything wrapped and carried out.

03

Set and plumb

New valves, new supplies, trap aligned, cabinet levelled and secured. Top set and sealed.

04

Finish

Faucet and drain assembly, caulk, wall patch where needed, leak test and cleanup.

Materials We Trust

The brands and systems we spec.

We only install systems we can stand behind for twenty years. No brand bait-and-switch mid-job.

Premium bathroom materials

Quartz tops

The default for durability. Non-porous, no sealing, and it handles daily use better than natural stone.

Undermount basins

Nothing to catch on the counter edge when wiping down. Requires a top rated for undermount.

Wall-hung vanities

Needs solid blocking in the wall. We add it while the unit is off if it is not already there.

Quarter-turn shut-offs

We replace old multi-turn valves as standard. They are the thing that fails when you need them most.

Worth knowing first

Things most contractors won't tell you.

A different footprint means wall and floor work

A narrower or wall-hung vanity exposes unfinished wall and sometimes untiled floor. We price patching up front rather than discovering it on the day.

Old valves usually will not reseat

Shut-offs that have not moved in twenty years tend to weep once disturbed. We replace them as standard rather than gambling.

Double vanities need the rough-in checked

Two basins usually means a second drain and supply set. Whether that is simple depends entirely on what is behind the wall.

Electrical is often out of date

Older vanity areas frequently lack GFCI protection. If we are touching the circuit we bring it to current code.

Live Job Log

Recent Vanity Installation Jobs in Massachusetts

Real vanity installation projects finished in Massachusetts over the last few months.

Full Bathroom Remodel

Full Bathroom Remodel

Full gut remodel in a 1926 Worcester two-family: cast-iron waste replaced with PVC, PEX supply, Schluter Kerdi shower, 12x24 porcelain floor. Lead-safe containment throughout.

Worcester Jul 2026
Tub to Shower Conversion

Tub to Shower Conversion

Tub-to-shower conversion in a Boston triple-decker: pulled cast-iron tub down three flights, rebuilt framing, Kerdi-Line linear drain, frameless glass.

Boston Jul 2026
Walk-In Shower Installation

Walk-In Shower Installation

Curbless walk-in shower in a Chelmsford ranch: zero-threshold pan, Kerdi-Board walls, bench seat, thermostatic valve, grab-bar blocking added.

Chelmsford Jul 2026
Master Bathroom Renovation

Master Bathroom Renovation

Master bath remodel in a Lexington colonial: relocated supply for a freestanding tub, double quartz vanity, heated Ditra floor, Wellesley-style wainscot.

Lexington Jul 2026
Full Bathroom Remodel

Full Bathroom Remodel

Hall bath gut in a Plymouth cape: rotted subfloor replaced, new rough-in, 24x48 large-format walls, building and plumbing permits pulled.

Plymouth Jun 2026
Accessible Bathroom Remodel

Accessible Bathroom Remodel

Accessible bath conversion in Andover: 36-inch doorway widened, curbless shower, fold-down bench, ADA grab bars, comfort-height toilet.

Andover Jun 2026
Shower Replacement

Shower Replacement

Shower replacement in a Springfield two-family: failed mud pan removed, Schluter Kerdi system, subway walls, mosaic floor, new mixing valve.

Springfield Jun 2026
Bathtub Replacement

Bathtub Replacement

Bathtub replacement in a Reading colonial: cast-iron out, new alcove soaking tub, tiled surround, Schluter-Jolly edge profiles.

Reading May 2026

What homeowners say

Reviews from vanity installation clients.

48-inch shaker vanity, quartz top and new sconces. In and out in a day and the bathroom looks like a different room.

Ellen S.

Medford, MA · Vanity Installation

They replaced the shut-off valves without me asking, which the last plumber refused to touch. Small thing, big difference.

Paul D.

Norwood, MA · Vanity Installation

Double vanity in the master. They checked the rough-in first and told me exactly what the second drain would cost before starting.

Nina H.

Needham, MA · Vanity Installation

Questions

Most-asked about vanity installation.

Most single-vanity swaps are done in one visit, typically half a day to a full day. Double vanities or jobs needing wall repair can run into a second day.

Generally no, if the plumbing stays in place. If supply or drain lines move, or a new circuit is run, Massachusetts requires the relevant permit. We will tell you which applies.

Yes, and that is common. Send us the model and we will confirm the rough-in works with your existing plumbing before the day.

We patch and finish the exposed wall and floor. On a significantly smaller unit that can mean tile work, which we quote up front.

Yes, if you want it done at the same time. Doing it in one visit is cheaper than bringing someone back.

Ready when you are

Let's start your bathroom.

Free on-site estimate. Firm quote within 48 hours. No high pressure, ever.

1180+

Bathrooms Completed

4.9

214 Google Reviews

1 day

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Licensed & Insured NKBA Certified On-Time Finish

Get Your Free Bathroom Estimate

On-site quote, firm number, no high-pressure sales. Response within 1 business day.

No spam. No high pressure. We call once, answer your questions, schedule the on-site if you want.