Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Alamo
Bathroom remodeling in Alamo typically costs between $9,000 and $28,000 for a full gut-and-replace, with smaller projects like tub-to-shower conversions running $3,500 to $10,000. The timeline in this unincorporated Contra Costa community is different from neighboring cities, because every permit routes through the County office in Martinez, not a local city hall. We’re Barrett & Sons Construction, and we’ve been working with Alamo homeowners long enough to know which county forms to submit, which fire-safe window requirements apply in the foothills, and how to keep a project moving when an extra plan review hits the schedule. Call (877) 610-1318 for a straight answer on your project.
Why Barrett & Sons Construction Is Alamo’s Preferred Bathroom Remodeling Company
Tom Barrett put his name on the truck in 1998 and his sons have run crews alongside him ever since. That matters in Alamo, where homeowners tend to ask around before hiring. When you call us, Tom answers. When a change order comes up, it arrives in writing before the work happens. And when the job is done, our 90-Day Done Right Promise says one call brings him back.
Alamo’s permit path surprises a lot of homeowners. There is no building counter in town. Everything goes through the Contra Costa County Department of Conservation and Development in Martinez, and if your home falls within the State Responsibility Area High Fire Hazard Severity Zone, that means Chapter 7A fire-safe construction review may apply even to a bathroom remodel that touches an exterior wall or window. We file those applications ourselves, and we know which inspection steps add days versus weeks. The permit inspector works for you, not for me; that’s why I like him.
For homeowners between 50 and 70 who’ve been burned by a national remodeler’s phone quote and door-step surprise, Barrett & Sons runs differently. Every allowance is in writing. Every scope change is a written change order. Every eligible job is permitted and inspected. And we stock premium brands across the trades, so you know exactly what’s going into your walls.
Our Bathroom Remodeling Services in Alamo
Full Bathroom Remodeling
A full bathroom remodel in Alamo usually runs $9,000 to $28,000, depending on layout changes, waterproofing scope, and fixture grade. Many of the late-1960s through 1990s homes along Stone Valley Road and Livorna Road were built with builder-grade vanities and shallow tubs that have hit the end of their useful life. We pull the old room down to studs, correct any framing issues from decades of shower moisture, and rebuild with current code-compliant waterproofing and ventilation.

Walk-In Showers & Shower Remodeling
Walk-in shower installation in Alamo typically costs $4,500 to $12,000. In hillside developments like Alamo Springs, the work often includes a Chapter 7A fire-safe window review when the shower wall shares an exterior wall. We handle the county paperwork and plan around those extra review days so the punch list does not stall.

Tub-to-Shower Conversion
Tub-to-shower conversion is one of the most requested projects in Alamo, especially for homeowners who want a safer entry without widening the entire bath. It runs $3,500 to $10,000. We recently completed one in the Alamo Springs neighborhood where the original mid-1990s builder-grade soaking tub was leaking into the subfloor. Our rough-in revealed untreated framing that had wicked moisture for years. After repairing the joists and re-flashing the window, we installed a Moen Adler pressure-balance valve, a Schluter waterproof membrane, and a ¾-inch frameless glass enclosure. The county inspector’s sign-off took an extra week because of the fire-safe glazing requirement for the ember-resistant zone.

Vanities, Tile & Fixtures
Bathroom vanity installation in Alamo runs $800 to $3,000 for a standard replacement. Tile and fixture upgrades follow a similar range depending on square footage and material. We carry names like Cambria that you can look up before the contract is signed. No mystery brands off a van.

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 Alamo
Your windows and exterior vents matter in Alamo’s fire hazard zone. We regularly install Ply Gem and Simonton windows in hillside bathrooms where the county requires dual-pane, tempered glass rated for ember exposure. We also work with PGT impact-rated products where the plan review calls for hardened exterior openings. Because we’re local to the Bay Area, parts orders for Alamo jobs don’t sit in a national warehouse queue; our material suppliers are the same suppliers Alamo’s custom homebuilders use.
Common Bathroom Remodeling Problems We See in Alamo Homes
- Builder-grade tile over green board or plain drywall. Homes built from the late 1960s through the 1990s in Alamo often used water-resistant drywall rather than true cement board or membrane waterproofing. By year 20 or so, the grout lines leak and the framing starts to soften. We strip it to the studs and install a Schluter membrane or cement board with proper seam taping.
- Expansive Diablo clay shifting the slab. Alamo sits on clay soils that swell in rainy winters and shrink through summer. Cutting new plumbing lines without proper joint detailing invites cracked finishes when the slab moves. We account for that movement at the design and rough-in stage.
- Window-driven fire-safe review delays. If a bathroom remodel touches an exterior wall or window in the Alamo Springs or Diablo foothills area, the county’s Title 7A fire-safe checklist often applies. Homeowners who start the project assuming Danville-style city hall rules get caught off guard by the extra plan review in Martinez.
- Ventilation that never worked from day one. Many older Alamo bathrooms lack dedicated exhaust fans or vent into an attic instead of the roof. Proper venting is a code requirement, but it’s also what keeps your new tile and grout from mildewing within two years.
Pricing for Bathroom Remodeling in Alamo, CA
Here is what we’re seeing for actual line-item pricing in Alamo’s 94507 zip code:
| Project | Typical Alamo Range |
|---|---|
| Bathroom Remodel | $9,000-$28,000 |
| Small Bathroom Remodel | $5,000-$12,000 |
| Walk-In Shower Installation | $4,500-$12,000 |
| Tub-to-Shower Conversion | $3,500-$10,000 |
| Bathroom Vanity Installation | $800-$3,000 |
What moves the price is not mystery markup; it’s whether you’re moving plumbing, whether the county’s fire-safe window review applies to your exterior wall, and what grade of tile, fixture, and glazing you choose. We provide a written line-item quote before the first nail moves, and any allowance change arrives as a written change order. Call (877) 610-1318 to schedule your free estimate.
We Also Serve Cities Near Alamo
In addition to our Bathroom Remodeling work in Alamo, our crews cover Saranap, Moraga, Walnut Creek, and Danville. Many of those towns have their own city-level permit counters, which means a homeowner who moves from one to another is often surprised by a completely different plan review path. We handle the paperwork for all of them, so you don’t have to learn another jurisdiction’s rules. If you’re in Alamo, see our Bathroom Remodeling in Alamo page for neighborhood-specific notes.
Serving Alamo, CA - Our Local Coverage Area
We’re based in the Alamo 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 Alamo
Yes, because Alamo is an unincorporated community with no local city hall, so all building permit applications route through Contra Costa County’s Department of Conservation and Development office in Martinez. The good news is you don’t have to drive there yourself; we submit the paperwork on your behalf, and we know which fire-safe checklist items apply in Alamo’s high fire hazard severity zones.
It can. In Alamo’s State Responsibility Area High Fire Hazard Severity Zone, any remodel that touches an exterior wall or window can trigger Chapter 7A fire-safe construction review, which often means upgrading to ember-resistant or impact-rated glazing. We flag that before the plan review does, and we build the timeline for it into our written estimate. Call (877) 610-1318 and we’ll check your specific parcel.
Most of Alamo’s housing stock was built from the late 1960s through the 1990s with builder-grade bathrooms that are now at the end of their service life. The bigger risk is not overimprovement; it’s moisture damage that a home inspector flags at sale. A practical upgrade like a $3,500 to $10,000 tub-to-shower conversion with full waterproofing protects the framing and gives you a bathroom you can actually use. The bigger-ticket remodels make sense when the existing bath is so dated it drags down the listing price.
The most common hidden cost we see in Alamo is water-damaged subfloor and framing discovered after demo. A mid-1990s soaking tub that has been leaking for years often leaves untreated floor joists that need repair before any new work can pass inspection. That’s why our written quotes include a contingency line for structural repair, and we never hide the cost by issuing a surprise invoice later. An allowance that isn’t on paper is a surprise waiting for a date.
No. Many Alamo neighborhoods, especially the master-planned foothill developments like Alamo Springs, have HOA architectural review committees that are stricter than a city planning department. Plus, the county’s Chapter 7A fire-safe review adds an approval layer Danville’s city-funded reviews don’t always have in the same form. We’ve seen bathroom remodels in Alamo take longer to approve than the same project would in Walnut Creek, solely because of the dual county-and-HOA review path.
If you’re ready to talk through a bathroom remodel in Alamo, call (877) 610-1318. We’ll walk the site, write the scope, and put your numbers in writing before anything gets torn out.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving the Bay Area since 1998.







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