Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across San Mateo
A full bathroom remodel in San Mateo typically runs $9,000 to $28,000, with walk-in shower installations landing between $4,500 and $12,000 and tub-to-shower conversions between $3,500 and $10,000. Those are real numbers from the bids we’ve written here, not national averages pulled from a database. Call (877) 610-1318 and we’ll walk your specific bathroom, measure everything, and hand you a line-item written estimate before you commit to anything.
We’ve worked in every corner of San Mateo, from the Craftsman bungalows near downtown’s 94401 to the postwar ranches in the flatlands and the homes sitting on bay fill east of Highway 101. That local depth matters because a bathroom remodel is rarely just a bathroom remodel. Open a wall in a 1952 ranch and you may find galvanized drain lines ready to crumble. Open one in 94404 and the building department may want a soils report before you pick out a vanity. We plan for that on the front end so you’re not paying for surprises on the back end.
Why Barrett & Sons Construction Is San Mateo’s Preferred Bathroom Remodeling Company
Tom Barrett founded this company in 1998, and he still answers his own phone. His sons run the crews. When you hire us for a bathroom remodel in San Mateo, the name on the contract is the name on the truck, and the person who shakes your hand at the estimate is the person who’ll be back if anything needs attention under our written 90-Day Done Right Promise. That promise is printed on every contract: if it’s not done right, one call brings Tom back.
We publish Tom’s name, his license number, and our business address. Look it up before you sign anything, we’d rather you did. We also put every allowance, every scope change, and every price adjustment in writing before a single nail moves. The permit inspector works for you, not for us, and we like it that way. On a San Mateo remodel, permits are not optional. Not in 94404, where bay mud changes foundation requirements, and not in 94402, where hillside seismic considerations can enter a bathroom framing inspection.
We answer the phone 24 hours a day with a live person, not a voicemail box or an out-of-state call center. If you call at 6 a.m. on a Tuesday, a person picks up. Around here, that’s how it should work.
Our Bathroom Remodeling Services in San Mateo
Full Bathroom Remodeling
A full bathroom remodel in San Mateo means taking the room to the studs and rebuilding it properly. In the 1940s-to-1960s ranches that dominate the flatlands, that almost always means replacing corroded drain lines, repairing water-damaged subfloor, and squaring up framing that has drifted over 70 years. We pull the permit, schedule the inspections, and write every change order before work proceeds. Our Bathroom Remodeling team handles the whole job, from demolition to final walkthrough.

Walk-In Showers & Shower Remodeling
Walk-in shower installation in San Mateo runs $4,500 to $12,000 depending on tile choices, glass enclosure, and what we find behind the old surround. Homes near the coast deal with persistent morning fog and onshore moisture that keeps north-facing walls damp for months at a time. That moisture is why we check the framing and waterproofing before we hang backer board, not after. A shower that looks fine on the surface can hide a failed moisture barrier behind it.

Tub-to-Shower Conversion
Converting a tub to a shower is the single most common request we get from San Mateo homeowners in their 50s and 60s and up. It’s a practical change: step-over height drops, access improves, and the room feels larger. In San Mateo, a tub-to-shower conversion runs $3,500 to $10,000. The range widens when the home sits on the east side of the city, where opening a plumbing wall can trigger structural review if the foundation shows signs of settling in bay mud.

Vanities, Tile & Fixtures
Whether you’re doing a full gut or a focused refresh, we install vanities, tile, and fixtures with the same permit and inspection discipline we bring to larger remodels. A vanity swap in San Mateo runs $800 to $3,000. Tile work depends on square footage and material. We carry premium brands you can look up and verify, so you know exactly what’s going into your home before it’s ordered.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Mateo
For bathroom windows and any glazing work, we install and service Simonton, Ply Gem, and PGT products. These are brands you can research, with warranties that stand up. We keep local stock available for San Mateo customers, which shortens lead times when a remodel exposes a window that has to be opened up or replaced to meet egress code. We don’t put mystery brands in your home, and we don’t ask you to trust a label you can’t look up.
Common Bathroom Remodeling Problems We See in San Mateo Homes
- Failed waterproofing behind older tub surrounds. San Mateo’s morning fog and onshore moisture keep north-facing walls damp through spring. Behind a 30-year-old tub surround, that moisture often means dry rot and mold that’s invisible until demolition starts.
- Cripple-wall foundations and undersized anchor bolts. Homes built before modern seismic codes, especially in the flatlands, often have foundation details that fail current standards. Opening a bathroom wall gives us the chance to inspect what’s underneath, and a permit brings that work into compliance.
- Corroded galvanized or cast-iron drain pipes. In the 1910s-to-1930s Craftsman and Spanish Colonial Revival homes near downtown San Mateo, original drain lines are at the end of their service life. A bathroom remodel is the right time to replace them, but only if the scope is written before tile goes up.
- Bay mud settlement east of Highway 101. In 94404, soft mud soils and high water tables mean standard footings don’t always work. A bathroom remodel that touches load-bearing walls can require a soils report and structural engineer’s foundation design. We build that allowance into the estimate before you sign.
Pricing for Bathroom Remodeling in San Mateo, CA
Here are the ranges we typically quote for bathroom work in San Mateo. These are market-calibrated for this city, not pulled from a national chart.
| Service | Typical Range in San Mateo |
|---|---|
| Full Bathroom Remodel | $9,000 - $28,000 |
| Walk-In Shower Installation | $4,500 - $12,000 |
| Tub-to-Shower Conversion | $3,500 - $10,000 |
| Bathtub Replacement | $3,500 - $10,000 |
What moves the number is what we find once walls open: framing repairs, drain replacement, waterproofing rebuilds, and foundation work triggered by code. That’s why we write allowances into every contract and put every price change on paper before work proceeds. An allowance that isn’t on paper is a surprise waiting for a date. Call (877) 610-1318 for a free estimate. We’ll walk the space and tell you straight what it’ll cost.
We Also Serve Cities Near San Mateo
Our crews work throughout San Mateo and into Foster City, Belmont, Hillsborough, and Redwood Shores. If you’re on the Peninsula and within easy reach of our Bay Area office, we can schedule your estimate and typically get on site quickly once you approve the scope. Call and ask.
Serving San Mateo, CA - Our Local Coverage Area
We’re based in the San Mateo 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 San Mateo
Because the ground under much of 94404 is bay fill: soft mud, high water table, and measurable liquefaction risk. The city’s building department routinely requires a soils report and structural engineer’s foundation design for work that touches load-bearing walls. A bathroom remodel that would sail through inspections two miles west in 94402 can trigger foundation review here. We factor that into the estimate up front, so you’re not selecting tile and then waiting on a soils report. Call (877) 610-1318 if you’re planning a remodel east of 101 and want to know what applies to your block.
Corroded drain lines and failed waterproofing. In the 1940s-to-1960s ranches across the central flatlands, original galvanized pipes are often paper-thin, and decades of fog-driven moisture leave the subfloor behind the tub rotted through. That’s the single most common change order we write, which is why we put drainage and waterproofing allowances in the contract before demolition starts. You’ll know the price of the repair before we make it. Call (877) 610-1318 to schedule a pre-inspection.
West-side homes in 94402 and 94403 sit close to the San Andreas Fault corridor, and hillside terrain adds load-bearing and shear considerations that flatland homes don’t face. When we open a bathroom wall, we look at the framing through that lens: undersized headers, questionable connections, and drift that could affect the remodel. If we find something, you get a written change order and a repair plan before tile goes up. The inspector will look at it too, and we’d rather you hear it from us first.
Yes. Once the wall is open and the permit is active, the inspector can and often will look at the waterproofing condition behind the tub surround. If the old membrane failed and the framing is compromised, that’s a code issue and a safety issue, not something you can paper over. We plan for that inspection when we plan the remodel. If you’ve got an older surround and suspect moisture, call (877) 610-1318 and we’ll take a look before you commit to tile.
Because a 1950s bungalow in San Mateo can hide almost anything behind its walls: dry rot, failed waterproofing, suspect framing, corroded drains. A not-to-exceed allowance clause gives you a written ceiling on what those conditions can add to the project, and any increase above that ceiling requires a written change order with your signature before we move. You’ll never open a bill at the end that you didn’t approve along the way. That’s how we’ve run Barrett & Sons since 1998, and how we’ll run your job.
Call Barrett & Sons Construction for Your San Mateo Bathroom Remodel
If you’re planning a bathroom remodel in San Mateo, call (877) 610-1318. We’ll schedule a free estimate, walk your space with you, and put a written line-item scope in your hands. Tom Barrett answers his own phone. Permit pulled, change orders in writing, and a 90-Day Done Right Promise on every job. Ask anyone on your street, or look up the license number yourself.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving San Mateo and the surrounding Peninsula since 1998.







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