Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Kensington
A bathroom remodel in Kensington typically runs $9,000 to $28,000, depending on whether you’re replacing fixtures in place or moving walls, plumbing, and tile on a hillside lot. Most full remodels here take three to six weeks because so many homes need structural attention before tile ever touches the wall. If you’re weighing whether to renovate a 1940s bathroom in Kensington, the smartest first step is a written, line-item estimate from a crew that has actually worked on post-and-pier foundations. Call Barrett & Sons at (877) 610-1318 and you’ll talk to a live person who knows Kensington’s permit process, not a call center reading from a script.
Kensington’s bathrooms live in houses built when cast iron and galvanized pipe were standard, which means the remodel conversation usually starts behind the walls, not on top of them. We’ve opened enough of these bathrooms to know what the county inspector will want to see before you spend a dollar on tile. Tom Barrett and his sons run the crews themselves, and they’ve spent nearly three decades working the East Bay hills, including the unincorporated pockets most contractors don’t understand.
Why Barrett & Sons Construction Is Kensington’s Preferred Bathroom Remodeling Company
We’re an owner-operated shop, which in Kensington matters more than in most places. Tom Barrett’s name is on the truck, his sons are on the job most days, and his address and license number are published for anyone to look up before signing anything. That’s the kind of accountability you want when your bathroom sits over a cripple-wall foundation on a slope, and the contractor you hire claims permits are “optional.” They’re not, and we pull every one through Contra Costa County before work starts.
Kensington homeowners have told us stories about other crews showing up, taking measurements, and then going silent when the county asked for a geotechnical report on a hillside bathroom addition. We don’t get caught off guard by that because we’ve done the Bathroom Remodeling work here long enough to know what Martinez wants to see. Our quotes hold because we scope them honestly, and every change order arrives in writing before any price shifts.
Response time to Kensington is straightforward: we answer the phone when you call, and we schedule onsite estimates around your week, not ours. The crews that serve Kensington live in the Bay Area, not two counties away. When you call (877) 610-1318, you reach a person who can talk about your neighborhood, not a recorded menu.
Our reputation in Kensington rests on the 90-Day Done Right Promise, written on every contract. If something isn’t done right after we leave, one call brings Tom back. No fine print, no arguing. That promise has kept us busy in Kensington and Kensington for years, because homeowners here want a contractor they’ll see at the hardware store on Saturday, not a franchise dispatching strangers.
Our Bathroom Remodeling Services in Kensington
Full Bathroom Remodeling
A full remodel in Kensington usually means gutting a space that hasn’t been touched since the Eisenhower years. We handle demolition, plumbing rough-in, electrical updates, waterproofing, tile, fixtures, and the county inspection that follows. On hillside homes, we coordinate with structural engineers when the bathroom sits over a cripple wall that needs bracing before we set a tub.

Walk-In Showers & Shower Remodeling
Many Kensington homeowners swap a low-clearance tub for a walk-in shower, especially in the smaller upstairs baths common to 1930s bungalows. We build curbless showers with Schluter waterproofing systems when the subfloor allows, and we frame the shower to work with the slope of the house, not against it. Grohe fixtures are a popular choice here because they hold up to the hard water that comes through East Bay MUD lines.

Tub-to-Shower Conversion
In Kensington, a tub-to-shower conversion often reveals cast iron drain lines that have to be cut back and replaced before the new shower base goes in. We quote that work up front, not as a surprise after demo day. The county inspects the drain change, and we schedule that inspection so your bathroom isn’t left torn apart while paperwork sits in Martinez.

Vanities, Tile & Fixtures
If your bathroom just needs a refreshed vanity, new tile, and better fixtures, we do that too. We install Sterling and Grohe products by name, not mystery hardware off a van, and our tile crews work with the uneven floors common to older Kensington homes so the finished surface is flat and the grout lines stay tight.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Kensington
We stock and install Schluter waterproofing membranes, Sterling tubs and shower bases, and Grohe faucets and valves, so Kensington customers see the brand names on the boxes before they’re installed. This matters in older homes because the right waterproofing system is the difference between a shower that lasts thirty years and one that rots the redwood framing behind it in five. We don’t substitute generic materials to pad a margin, and our pricing lists the brand names in writing.
Common Bathroom Remodeling Problems We See in Kensington Homes
Every neighborhood has its own renovation headaches. In Kensington, these are the four we run into most often.
- Galvanized supply lines and cast iron drains: Homes built in the 1920s through the 1950s often still have original plumbing that’s corroded or cracked, especially on the hot side. A bathroom remodel that ignores these lines is asking for a leak behind a brand-new wall.
- Cripple-wall foundations under sloped bathrooms: Many Kensington bathrooms sit over short wood-framed foundation walls that were never bolted to the mudsill. The county may require retrofit work before we pull the bathroom permit, and we handle that coordination rather than leaving you to figure it out.
- Moisture damage from trapped hillside fog: Kensington’s elevation catches more coastal fog than El Cerrito below, and older bathrooms with single-pane windows and no exhaust fan trap that moisture against redwood framing. We frequently replace rotted studs and sill plates before tile work begins.
- Permit confusion from unincorporated status: Kensington is not part of Berkeley or El Cerrito, and some contractors assume they can pull permits at the wrong counter. We pull every Kensington bathroom permit through Contra Costa County in Martinez, and we build the county’s review timeline into our schedule.
Pricing for Bathroom Remodeling in Kensington, CA
A full bathroom remodel in Kensington generally lands between $9,000 and $28,000. Small bathrooms that keep the same footprint usually fall in the $5,000 to $12,000 range, while walk-in shower installations run $4,500 to $12,000 depending on waterproofing scope and glass. Tub-to-shower conversions sit between $3,500 and $10,000, and a new vanity with tile work starts around $800 and climbs with material choice.
What moves a Kensington bathroom quote up or down? Foundation and framing work, drain line replacement, whether you’re moving walls, and the tile you pick. A hillside home that needs cripple-wall bracing will cost more than a flat-lot bath, and we’ll show you that line item in writing. Call (877) 610-1318 for a free, no-trip-charge estimate inside the county, and we’ll walk you through the numbers in plain English before you sign anything.
We also publish a senior and veteran discount of 10% on every job, and if you have a written estimate from another contractor, ask about our free second opinion. You’ll get an honest read on whether that number is realistic for Kensington, not a sales pitch.
We Also Serve Cities Near Kensington
We work throughout the East Bay hills and flats, from El Cerrito and Albany to Richmond and Berkeley. If you need Roofing in Kensington handled while we’re there, we do that too. Window and door work in Kensington is another common companion to a bathroom remodel, and you can ask about Windows & Doors in Kensington during the same visit. One crew, one call, and a written scope for the whole list.
Serving Kensington, CA - Our Local Coverage Area
We’re based in the Kensington area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Bathroom Remodeling in Kensington
Most Kensington projects start within two to four weeks of the signed contract, depending on county permit review time. We don’t promise same-day starts on remodeling work because a bathroom built right takes planning, but we’ll give you a start date in writing. Call (877) 610-1318 to get your free estimate on the calendar.
Yes, we serve all of Kensington, including the steep streets off Arlington Avenue and the homes along the ridge near the Kensington Community Center. Our crews are used to the narrow driveways, tight turns, and sloped lots that define hillside neighborhoods, and we plan material delivery accordingly. No address in the 94530 ZIP code is out of reach.
Kensington bathroom remodels often run slightly higher than flatland jobs in El Cerrito or Berkeley because hillside foundations and older plumbing add scope. A full remodel here typically ranges from $9,000 to $28,000, while a small bath that needs no structural work can start around $5,000. The best way to know your exact number is a free written estimate, and we never change it without a written change order first.
Yes, we pull every eligible permit through Contra Costa County in Martinez, because Kensington is unincorporated and doesn’t have its own city hall. The inspector works for you, not for us, which is exactly why we like having them on the job. Permits protect your home’s value and your safety, and we build the inspection schedule into your timeline.
Every Barrett & Sons bathroom remodel is covered by our 90-Day Done Right Promise, written on the contract, not hidden in fine print. If something isn’t right after we finish, one call brings Tom back to make it right. We also honor manufacturer warranties on Schluter, Sterling, and Grohe products, and we’ll register those warranties for you when the job is complete. Call (877) 610-1318 to talk through your project, and we’ll schedule a free estimate that fits your week.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Kensington and the East Bay with bathroom remodeling done right since 1998.







Before
After
Before
After
Before
After