







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Santa Clara
Bathroom remodeling in Santa Clara typically runs $9,000 – $28,000 for a full gut and rebuild, with smaller jobs like a shower replacement landing between $3,000 and $8,500. Most of the homes we work on here are 1950s and 1960s ranches, and opening those walls nearly always turns up electrical and plumbing that current code will not pass. That is exactly why we write a fixed price and a line-item allowance before demo day, so the number on your contract is the number on the final invoice. If you are planning a Bathroom Remodeling project anywhere from the Old Quad to the Rivermark area, call (669) 274-2362 and we will walk the job with you first.

Why Penhallow Remodeling San Jose Is Santa Clara’s Preferred Bathroom Remodeling Company

Santa Clara homeowners tend to ask sharper questions than most. You have watched neighbors get burned by low-bid contractors who disappear after the check clears or leave a shower that leaks into the slab six weeks later. Our answer is simple: a General Contractor in Santa Clara who provides a written price before any work starts, a written 365-Day Done Right Promise, and a real person who answers the phone 24/7. Trevor Nash runs every estimate personally, and he will tell you what the permit triggers before the inspector does.
We serve Santa Clara neighborhoods including the tree-lined blocks around Central Park, the 1960s ranches south of El Camino Real, and the newer townhome developments near Levi’s Stadium. Our background-checked, uniformed crews know which era of construction they are opening up before the first tile comes off. That local familiarity is why our Santa Clara jobs pass inspection more smoothly and why our change orders are rare, small, and always approved in writing first.
Styles & brands we work with







Small Bathroom Remodel in Santa Clara
Small Bathroom Remodel work in Santa Clara most often means a hall bath or guest bath in a 1950s – 60s ranch, typically 35 to 50 square feet, where every inch has to work harder. Homeowners here ask for this when the original cast-iron tub is stained through, the tile grout has failed, or a growing family needs the space to function for ten more years without looking dated. In Santa Clara, a small bath remodel runs $5,000 – $12,000 depending on whether you keep the existing footprint, what we find behind the walls, and whether the city requires electrical upgrades once the walls are open.
Keeping Your Footprint, Replacing Everything Else
Most small baths in Santa Clara stay in the same footprint. We replace the tub or shower, swap the vanity, re-tile the floor, and address the waterproofing that failed. What changes the price is what the permit inspector finds: a 1960s panel that will not support a GFCI circuit, or a cast-iron drain that has thinned at the slab.
When the Layout No Longer Works
Sometimes a small bath needs the toilet or shower moved, even by a foot. That involves cutting into the slab, which in a Santa Clara ranch means working around post-tension or rebar. We will always tell you if a move is worth the cost before you commit, and we write the allowance so the price does not drift on you.
Shower Remodel in Santa Clara

Shower Remodel work in Santa Clara is the single most requested bathroom upgrade we do, and for good reason: original 1960s stall showers in these ranch homes were built with green board and mastic, not cement board and waterproof membrane. When the grout cracks and water gets behind the tile, the studs rot and the subfloor softens. In Santa Clara, a shower remodel runs $3,000 – $8,500 for a full replacement, and $4,500 – $12,000 if you want a walk-in shower installed where a tub used to sit.
Walk-In Showers and Curbless Entry
Older homeowners in Santa Clara often want a curbless walk-in shower so they can age in place without a step over a tub wall. The catch in a 1960s slab foundation is that the drain needs to be recessed into the concrete, which is more invasive than a standard tub-to-shower swap. We include that structural work in the written quote so there are no surprises when the saw comes out.
Frameless Glass and Waterproofing Done Right
We install frameless glass enclosures with a cement board substrate (the moisture-resistant layer behind your tile) and a full waterproof membrane that ties into the pan. That is the part you will never see but the part that keeps your Santa Clara shower from failing in five years. Cambria quartz shower curbs and benches carry their own warranty alongside ours.
Trusted Brands We Service in Santa Clara
We install and service fixtures and materials from brands that stand behind their products the same way we stand behind our labor. Cambria and Silestone quartz for shower curbs, benches, and vanity tops. Kohler and Moen fixtures for valves, showerheads, and tub fillers. Wellborn cabinetry for vanities built to fit Santa Clara’s compact bath footprints. Because our crews are local to the South Bay, we can have parts and replacement pieces in hand faster than a contractor running jobs out of Oakland or Fremont, and we also offer a Santa Clara Cgi service for specialized installations.

See the difference
Before
After
Before
After
Before
AfterCommon Bathroom Remodeling Problems We See in Santa Clara Homes
- Galvanized steel drain pipes at the end of their life. Original 1950s – 60s plumbing corrodes from the inside out, and a bath remodel that skips a subfloor leak test closes the wall on a problem that smells like sewer gas within weeks. We pressure-test drains before we close anything up.
- Ungrounded two-wire electrical behind the walls. Santa Clara’s post-war ranches often have original wiring that will not pass a modern GFCI requirement once the wall is open. If the scope of work does not include it, the inspector will red-tag the job until it is added mid-project.
- Failed waterproofing from original builder-grade showers. Green board and mastic were the standard on 1960s tract homes, and they do not hold up. Wall rot and hidden mold are the reward for letting it go another season.
- Seismic shear concerns when opening a wall between bath and bedroom. In a high-seismic zone, any wall that runs parallel to the roofline may be doing structural work. Cutting an opening for a larger shower without an engineer’s letter can draw a stop-work order from the City of Santa Clara.
Pricing for Bathroom Remodeling in Santa Clara, CA
Here is what Santa Clara homeowners should expect to pay, written plainly. These are real ranges from jobs we have quoted and built in this city, not national averages.
| Project | Santa Clara Price Range |
|---|---|
| Bathroom Remodel (full) | $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 |
| Shower Replacement | $3,000 – $8,500 |
What moves the number up in Santa Clara: a permit-triggered electrical panel upgrade, cast-iron drain replacement under the slab, moving plumbing in a post-tension foundation, and structural work if a wall is load-bearing. What keeps it down: keeping the same footprint, reusing the existing vent stack, and choosing a shower insert over custom tile. We write the allowance for the unknowns into your contract, and every change order is priced and signed before we touch it. Call (669) 274-2362 for a free, no-pressure estimate on your Bathroom Remodeling project.
We Also Serve Cities Near Santa Clara
Our crews work throughout the South Bay, including San Jose, Cupertino, Mountain View, and Los Gatos. If you are just over the border in any of those cities, the same written pricing and 365-Day Done Right Promise applies to your Bathroom Remodeling in Santa Clara project, with crews that know the local building departments and inspection quirks.
Serving Santa Clara, CA - Our Local Coverage Area
We’re based in the Santa Clara 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 About Bathroom Remodeling in Santa Clara
It can. The north side of El Camino Real sits over old orchard sites, and the city sometimes triggers an archaeological review when ground is broken or a foundation is cut. We handle the paperwork and build the review timeline into the schedule so it does not stall your project unexpectedly. Call (669) 274-2362 and we will tell you whether your specific address is likely to require one.
Often yes, if the scope of work opens walls and the inspector requires GFCI protection that the existing 100-amp panel cannot safely support. The honest answer is that many Santa Clara ranches need a panel upgrade to pass final inspection once electrical work is part of the permit. That is exactly why we write an electrical allowance into the contract before we start.
We pressure-test the drain the moment the old pan is out, before any new work goes in. If a cast-iron drain under the slab is compromised, we write the exact repair cost as a change order and get your written approval before we cut concrete. You will know the number, you will approve the number, and there is no surprise invoice at the end. Call (669) 274-2362 for a free estimate that includes this step.
It can, because both draw on the same panel. If a Santa Clara home already has an EV charger circuit pulling 40 or 50 amps, the load calculation may push a 100-amp panel over its limit when a bathroom circuit is added. We do a load check as part of the written estimate, so if a panel upgrade is needed you will know on day one, not when the inspector shows up.
Yes, in most cases, by cutting a narrow trench in the slab and re-routing the drain to the existing vent stack. The complexity depends on whether the slab is post-tension, which some Santa Clara ranches have and which requires extra care and rebar detection. We will know after looking at your foundation drawings, and we will price the move in the written quote before you commit. Call (669) 274-2362 to schedule a free estimate.
Our normal timeline from signed contract to first day of demo is two to four weeks in Santa Clara, depending on permit issuance and material lead times. This is planned construction work, so we will give you a real arrival window and hold to it. Call (669) 274-2362 and we will map out the schedule for your specific project.
Written by Trevor Nash, Owner at Penhallow Remodeling San Jose, serving Santa Clara homeowners with written pricing and a 365-Day Done Right Promise on every project.











