Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Bathroom Remodeling Across Martinez
A full bathroom remodel in Martinez runs $9,000 to $28,000, and the older your home, the more likely that number climbs once walls come open. Most of our Martinez jobs start with a free on-site estimate, a written scope, and a permit pulled before demo day. If you’re planning a remodel in the historic core or the hills above the Carquinez Strait, call (877) 610-1318 and we’ll walk the space with you.
Martinez isn’t like remodeling a bathroom in a 1990s tract house a few miles inland. Here, salt air works on metal fasteners, adobe clay shifts under pre-1920 foundations, and original subfloors rot from the crawlspace up. We’ve been working these blocks long enough to know what fails, what holds, and why cheap hardware costs more within a decade. That local knowledge changes the materials we specify, the way we waterproof showers, and the order we do the work.
Why Barrett & Sons Construction Is Martinez’s Preferred Bathroom Remodeling Company
Tom Barrett founded this company in 1998, and his sons run the crews. We’re owner-operated, name-on-the-truck people, not a franchise dispatching strangers. When you call (877) 610-1318, a live person answers. When you sign a contract, the 90-Day Done Right Promise is written on it, not buried in fine print. If something isn’t right, one call brings Tom back.
We know the difference between a 1908 Craftsman near the downtown historic district and a 1960s ranch on the eastern edge of Martinez. That matters, because the first one will almost certainly have unbolted mudsills and a subfloor that’s been breathing crawlspace moisture for a century. Our reputation around Martinez comes from jobs where we opened a wall, found rot or missing anchors, and handled it with a written change order instead of a surprise invoice. You can look up Tom’s name, address, and license number before you sign anything.
Our Bathroom Remodeling Services in Martinez
Full Bathroom Remodeling
A full remodel in a Martinez home often starts below the floor, not at the vanity. In pre-1920 houses, the original 1×4 plank subfloor is frequently rotted at the toilet flange, and the wall framing behind the tile was never bolted to the mudsill. We relevel, sister joists, anchor, then build the bathroom you’ll actually use. Marine-grade plywood goes down before the first tile is set.
Walk-In Showers & Shower Remodeling
Walk-in showers are one of the most requested projects in Martinez, especially for homeowners planning to age in place. The catch is waterproofing. Older Martinez bathrooms are often unventilated, and moisture from Carquinez Strait marine air condenses on plaster, wets the studs, and turns framing to punk. We install waterproof membranes behind every shower we build, no exceptions. The tile looks good; the wall behind it is what makes it last.
Tub-to-Shower Conversion
Converting a tub to a shower in a 1920s Martinez home usually means opening the walls. That’s the honest answer. You cannot know what’s behind the original lath and plaster until you open it, and what we find is often rot or missing seismic anchors. We handle the structural fixes as part of the conversion scope, with a written change order before any additional work moves forward. Expect the conversion itself to run $3,500 to $10,000 in Martinez, with structural upgrades priced separately in writing.
Vanities, Tile & Fixtures
Vanity mounting is one of those details that separates a remodel that lasts from one that doesn’t. Standard steel screws rust in Martinez’s salt air and fixtures pull out of the wall within a few years. We specify stainless or hot-dip galvanized hardware for anything that bears weight. Tile selection follows the same logic: sealed grout joints and fixtures rated for coastal conditions, not whatever’s cheapest off the shelf.
What happens when you call
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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 Martinez
We install materials you can look up, not mystery brands off a van. For windows and glass enclosures in Martinez bathrooms, we regularly specify Simonton and PGT products because their frames hold up to salt air and sustained wind off the Carquinez Strait. Frameless glass shower enclosures get the same treatment: marine-grade hardware and proper seals so the glass doesn’t fog, pit, or loosen. We order what the job needs and we stand behind it.
Common Bathroom Remodeling Problems We See in Martinez Homes
- Rotted subfloor at the toilet flange. The original 1×4 plank subfloor in many older Martinez bathrooms traps moisture from the crawlspace and rots right where the toilet sits. New tile over a rotting subfloor cracks within the first year. We check for this before demo, not after.
- Galvanized screws rusting out of vanity mounts and towel bars. Salt air from the strait accelerates rust on standard steel hardware. Fixtures pull loose, then the drywall behind them crumbles. We use stainless or hot-dip galvanized fasteners on every mount.
- Wall framing unbolted from the mudsill. Pre-1920 homes near the downtown historic district were built before seismic anchor requirements existed. The expanding adobe clay beneath them has pushed perimeter concrete, racked walls, and shifted floors. A bathroom remodel is often the moment these structural issues finally get addressed.
- Condensation trapped behind unventilated plaster walls. Marine air moves through older Martinez homes more than you’d think. Without ventilation or a waterproof membrane, moisture condenses inside walls and rots studs behind tile that looks fine from the outside.
Pricing for Bathroom Remodeling in Martinez, CA
Here’s what we see in this market. A coastal-spec full bathroom remodel in Martinez, including structural relevel and marine-grade materials, runs $9,000 to $28,000. A small bathroom remodel in a historic home with subfloor repair runs $5,000 to $12,000. Walk-in shower installation with marine-grade waterproofing runs $4,500 to $12,000. A tub-to-shower conversion with a seismic anchor upgrade runs $3,500 to $10,000. The price gap between coastal-spec and inland-spec is real: stainless hardware, marine-grade plywood, waterproof membranes, and structural anchors add cost up front but prevent failures that cost far more within a decade. Estimates are free, and every scope change arrives as a written change order before work proceeds.
| Service | Price Range (Martinez) |
|---|---|
| Bathroom Remodel (coastal-spec, incl. structural relevel & marine-grade materials) | $9,000-$28,000 |
| Small Bathroom Remodel (historic home, with subfloor repair) | $5,000-$12,000 |
| Walk-In Shower Installation (marine-grade waterproofing) | $4,500-$12,000 |
| Tub-to-Shower Conversion (with seismic anchor upgrade) | $3,500-$10,000 |
Call (877) 610-1318 for a free, written estimate. Tom or one of his sons will walk the scope with you, and you’ll get a line-item quote before you sign anything.
We Also Serve Cities Near Martinez
Our Bathroom Remodeling crews work throughout the Martinez area, including Pleasant Hill, Contra Costa Centre, Waldon, and Benicia. If you’re close by, give us a call and we’ll schedule a walkthrough at your convenience.
Serving Martinez, CA - Our Local Coverage Area
We’re based in the Martinez 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 Martinez
Because the adobe clay beneath many older Martinez homes expands and contracts seasonally, pushing perimeter concrete, racking walls, and shifting floors. In homes built before 1920, the mudsills were often never bolted to the foundation, and that movement has done real structural damage that shows up once a bathroom is opened. We inspect the foundation first because releveling and anchoring has to happen before tile goes down, not after. Call (877) 610-1318 and we’ll assess your situation for free.
In Martinez, the answer is usually yes. The strait funnels marine air through the gap in the Coast Ranges, and that air reaches most of the city, not just the shoreline. Galvanized steel rusts faster here than it does a few miles inland in Concord or Walnut Creek. Stainless hardware, marine-grade plywood, and proper waterproof membranes cost more up front. They cost far less than redoing the work in five years. Call (877) 610-1318 for exact numbers on your project.
Coastal-spec means stainless or hot-dip galvanized fasteners instead of standard steel, marine-grade plywood instead of standard subfloor, sealed grout joints, and a waterproof membrane behind every shower. Inland-spec skips those upgrades. The price difference on a typical Martinez bathroom runs into the thousands, but the inland-spec version will start rusting, rotting, or cracking within a decade. We price both honestly and tell you which one your house actually needs.
Honestly, no. The original lath-and-plaster walls in a 1920s Martinez home hide too much: rotted studs, missing seismic anchors, and decades of trapped moisture. You cannot properly waterproof or anchor a shower without opening the framing. We open what we need to, document what we find, and issue a written change order before any scope increase. The conversion itself runs $3,500 to $10,000. Call (877) 610-1318 for a free estimate and we’ll show you exactly what we’re looking at.
We pull permits and sign off on inspections on every eligible job. In an unreinforced masonry home in Martinez, that means the inspector verifies your structural upgrades meet current seismic code before we close anything up. The inspector works for you, not for us, and that’s exactly why we like him. You get a written record that the work was done right, and we get a satisfied neighbor who’ll see us at the hardware store. Call (877) 610-1318 with any questions.
Call Barrett & Sons Construction for Your Martinez Bathroom Remodel
You won’t get a call center. You’ll get Tom, one of his sons, or a crew lead who’s been doing this in Martinez for years. We’ll price the job honestly, write the scope down, and pull permits before a single nail moves. Call (877) 610-1318 today to schedule your free estimate, or ask about our 10% Senior & Veteran discount and our free second opinion on any written estimate you’ve already received. We’ll see you around town.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Martinez and the surrounding Bay Area since 1998.