Bathroom remodel cost guide
How Much Does a Bathroom Remodel Cost in San Jose?
A bathroom remodel in San Jose costs according to its scope, materials and size; our bathroom remodeling page gives the range: “Bathroom remodel costs range from $15,000 to $50,000+ depending on scope, materials, and size. We provide detailed estimates during your free consultation.” Where yours lands, or whether it goes past that range, depends on whether the toilet, shower or sink move, the shower or tub work, and the tile and fixtures.
The permit and the code items an inspector checks add to that, and this guide explains how each one changes the budget.
To price your own bathroom, call QA Builders at (669) 213-8077 or send us a few photos and measurements.
Bathroom remodel scope tiers, from refresh to new layout
Most bathroom projects fall into one of three tiers. The jump between tiers moves the price more than any finish choice, because each tier brings in more trades and a different San Jose permit.
Tier 1: refresh, with nothing moved
New paint, flooring, a vanity cabinet and countertop, mirrors and tile with no structural change. San Jose treats these as cosmetic improvements that need no building permit, and simple repairs to a faucet, toilet or drain need no plumbing permit either.
Tier 2: full remodel in the same layout
The room is taken down to the studs and rebuilt, but the toilet, shower and sink stay in place and their number does not change. New plumbing, electrical or fan work makes it what the city calls a minor remodel, permitted online at SJPermits.org without plans; the city may require both a rough and a final inspection.
Tier 3: new layout
Moving the toilet or shower, adding a second sink, moving a wall into a closet or changing a window makes it a major remodel. Plans are reviewed before the permit is issued, and the work adds new drain and vent runs, framing and often more floor and wall repair outside the bathroom.
Shower and tub choices that change the price
The wet area is where a bathroom budget is won or lost. The main choices, and what each one sets in motion:
- Keep the tub and retile around it. The lowest-cost option for the wet area, as long as the walls behind the old tile are sound.
- Replace a tub with a walk-in shower. The drain often has to move and grow, the floor needs a shower pan or a waterproofed mortar bed, and the walls get full waterproofing before tile.
- Curbless (zero-threshold) shower. The floor has to slope to the drain without a curb, which usually means recessing or rebuilding part of the floor framing: more structure, more labor.
- Glass. A frameless enclosure costs more than a framed door or a curtain, and custom panels are measured only after the tile is set.
- Tile area and pattern. Floor-to-ceiling tile, small mosaics and complex patterns add hours per square foot of wall.
Code sets a floor under every design. San Jose’s list for bathroom remodels cites the California Plumbing Code: a shower pan needs at least 1,024 square inches with a finished dimension of at least 30 inches in every direction, and a shower door must open to at least 22 inches clear. A shower squeezed into a small corner can fail these minimums, so check them before you fall in love with a layout.
Master bathroom remodel cost: why it grows faster than the room
A master bathroom remodel costs more than its extra floor area suggests. Two sinks need two sets of supply and drain lines; a separate tub and shower double the wet-area work; larger walls take more tile; and a bigger room often adds lighting, a heated floor or a linen closet. Many master bath projects also borrow space from a closet or bedroom, which turns them into a Tier 3 layout change with plans.
If the bedroom has no room to give, adding a bathroom as part of a master suite is an addition rather than a remodel. Our home addition cost guide covers that case.
Is a small bathroom remodel much cheaper?
Usually not by as much as its size suggests. A small bathroom saves on tile, flooring and vanity size, but it needs the same trades, the same permit and the same inspections as a larger one, and tight rooms can be slower to work in. The biggest saving in a small bathroom comes from keeping the toilet, sink and shower where they are.
Do you need a permit for a bathroom remodel in San Jose?
You need one as soon as the work goes beyond cosmetic: new electrical, plumbing or ventilation work, any change to walls, windows or framing, and any moved or added fixture. Two sets of rules then add items to the price.
California's water-conserving fixture rule
California Civil Code 1101.4 makes it a condition of final permit approval, for any permitted alteration to a single-family home, that all noncompliant plumbing fixtures in the house are replaced: toilets that use more than 1.6 gallons per flush, showerheads over 2.5 gallons per minute and interior faucets over 2.2 gallons per minute. In an older home this can reach fixtures in other bathrooms.
Key items a San Jose inspector checks in a bathroom
The city lists these as key requirements for minor kitchen and bathroom remodels, not as every code that applies; each one can add a line to the budget.
| Requirement | What it means for your budget |
|---|---|
| Exhaust fan of at least 50 CFM, Energy Star, ducted to the exterior; an opening window does not count | A bathroom with only a window, or a fan that vents into the attic, needs a new fan and duct run. |
| At least one light controlled by an occupant or vacancy sensor that turns it off automatically | A sensor switch or fixture is added to the lighting plan. |
| Toilet clearance of at least 15 inches from its centerline to each side and 24 inches in front | A toilet tucked next to a vanity or tub may have to move, which turns a refresh into a layout change. |
| Smoke and carbon monoxide alarms in each bedroom, outside sleeping areas and on each story, with a signed affidavit | Older homes may need new alarms before the final inspection. |
Is a bathroom remodel a good investment?
As our bathroom page says, “Bathroom remodels consistently rank among the top home improvements for return on investment.” Part of that return depends on the permit. San Jose reminds owners that state law requires sellers to disclose unpermitted work, and that insurance generally will not cover damage related to unpermitted work, so keeping the permit and its final inspection on record protects that return.
What to ask for in a bathroom remodel bid
- the waterproofing method for the shower walls and floor, named in writing;
- the tile area in square feet and who supplies the tile;
- a fixture list with flow ratings, so the Civil Code rule is covered;
- the fan model and where its duct exits the house;
- which items are allowances, and how large each allowance is;
- who applies for the permit (San Jose recommends a licensed contractor, since whoever signs the application carries responsibility for the work);
- a payment schedule tied to work completed; in California the down payment should never exceed 10 percent of the contract price or $1,000, whichever is less (CSLB; Business and Professions Code 7159.5).
Our guide on how to choose a remodeling contractor covers license checks and comparing bids in more depth. Planning a kitchen at the same time? The kitchen remodel cost guide explains its own scope tiers and permit path.
Talk to QA Builders about your bathroom
QA Builders (CSLB License #1073096) remodels bathrooms in San Jose, Willow Glen and the cities we serve in Santa Clara, San Mateo and Alameda counties, among them Santa Clara, Sunnyvale, Saratoga, Milpitas, San Carlos and Union City. We handle all permitting to ensure your project is fully compliant with local codes.
See our services on the bathroom remodeling page, and contact us for a free consultation and estimate: (669) 213-8077 or the contact page.