Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Hillsborough
Bathroom remodeling in Hillsborough runs $9,000 to $28,000 for a full project, and most jobs here clear a hurdle most Peninsula homes never face: the Town of Hillsborough’s own Architectural Review Board. That review layer is the single biggest reason quotes in 94010 look different from quotes in Burlingame or San Mateo. We’re Barrett & Sons Construction, and we’ve worked enough Hillsborough estates to know the ARB submittal packet, the inspection cadence, and the tree-protection ordinance as well as we know the tile showrooms. If you’re planning a tub-to-shower conversion, a walk-in shower install, or a full gut remodel, call (877) 610-1318 and we’ll walk you through the schedule before you spend a dollar.
Why Barrett & Sons Construction Is Hillsborough’s Preferred Bathroom Remodeling Company
Tom Barrett founded this company in 1998, and his sons run the crews that work in Hillsborough streets off Crystal Springs Road, Chateau Drive, and Pullman Road. That matters here. Hillsborough has zero commercial zoning: every structure is a private residence, and every contractor working in 94010 answers to both the homeowner and a Town review process that neighbors don’t have. We’ve sat through enough ARB cycles to know what gets approved, what stalls, and how to keep the calendar honest. Homeowners who’ve been through one Hillsborough remodel tend to call us back for the second bathroom because we file the submittal, hold the inspections, and don’t let the project sit half-finished waiting on a committee.
We answer our phone. A live person picks up 24 hours a day, seven days a week, not an answering service in another state. Tom Barrett publishes his name, address, and license number; look us up before you sign anything. Every job includes permits pulled and inspections signed, and every scope or allowance change arrives as a written change order before a single nail moves. If something isn’t right after we finish, one call brings Tom back: that’s the 90-Day Done Right Promise, written on the contract, not buried in fine print.
Call (877) 610-1318 and ask for a free estimate. We’ll drive the schedule backward from your target finish date so the ARB timeline doesn’t become the ARB surprise.
Key Takeaways for Hillsborough Bathroom Remodeling
- ARB review adds 4-8 weeks when a bathroom remodel changes any exterior wall penetration: a vent, a window opening, a skylight. We file the packet and schedule around the clock.
- Full bathroom remodels in Hillsborough run $9,000-$28,000; small baths run $5,000-$12,000. Walk-in shower installs run $4,500-$12,000.
- Architect-stamped drawings are often required even for substantial remodels, especially on 1910s-1960s estates. We coordinate that before demo starts.
- Tree protection near heritage oaks can stop a skylight or vent plan cold. We bring the arborist in early when needed.
- We don’t start demo before the Town signs off. It’s the only way to keep a Hillsborough job on schedule without redoing drywall or tile.
Our Bathroom Remodeling Services in Hillsborough
Full Bathroom Remodeling
A full Bathroom Remodeling job in Hillsborough means taking the room to studs, reworking the plumbing and electrical buried in thick plaster walls, and rebuilding to a standard that clears both the building inspector and the architectural review. We’ve done full remodels on Spanish Colonial Revival homes off Crystal Springs Road and mid-century moderns on the upper hillside roads where the original 1950s tile colors still drive the material conversation. We plan the submittal around what the ARB wants to see: material boards, exact fixture specs, and a clear note on any exterior change. No loose allowances. No surprises.

Walk-In Showers & Shower Remodeling
Walk-in shower installation in Hillsborough runs $4,500 to $12,000, and the curbless question comes up on nearly every job where the homeowner stays in place rather than sells. On hillside lots underlain by expansive Bay Area clay, floor movement is real, and a curbless pan needs careful subfloor prep we plan for on day one. We build with a Moen digital valve or similar named fixture so the homeowner isn’t stuck with a mystery-brand mixing valve when the trim wears out. The ARB usually cares about this work only when the shower changes an exterior plumbing wall or adds a window; we’ll tell you in the first walkthrough whether your plan triggers review.

Tub-to-Shower Conversion
Converting a tub to a shower in Hillsborough typically costs $3,500 to $10,000, and it’s the most common job we do in 94010’s older estates. The original 1920s and 1930s bathrooms were built around deep soaking tubs, and many homeowners are ready to trade the tub for a low-threshold shower. On plumbing walls that face the street or a neighbor’s view corridor, the exterior vent and stucco patch must match the existing color and texture; we note that in the submittal and match it on site. Like all our work, it’s permitted, inspected, and covered by the 90-Day Done Right Promise.

Vanities, Tile & Fixtures
Vanity installation in Hillsborough runs $800 to $3,000, and tile selection is where the ARB material palette comes into play if any surface is visible from outside or changes an original character feature. We stock and install KraftMaid and Cambria in kitchen spaces, and we apply the same premium-brand standard to bathroom vanities and solid-surface tops. In bathrooms that aren’t changing the exterior envelope, you can choose freely and we’ll install on your schedule; in bathrooms that do trigger review, we’ll pull samples and build a materials board before you commit to anything. Clear specs, written allowances, no change-order disputes.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
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.
How Hillsborough’s ARB Shapes a Bathroom Remodel
This is the part that surprises most homeowners, even ones who’ve done projects before. Hillsborough’s Architectural Review Board reviews even a bathroom remodel when any plumbing wall, vent, or skylight changes the exterior envelope. That’s not the rule in Burlingame. Not in Millbrae. Not in San Bruno. Here, a simple over-the-counter permit isn’t enough when the project vision involves moving a window to add shower glass or cutting a new vent through a stucco wall on a 1930s estate.
That Town-level review adds 4-8 weeks to the calendar and routinely requires architect-stamped drawings for changes visible from the street or affecting original estate character. We manage that entire packet: drawings, materials board, arborist letter where trees are near the work, and a schedule that keeps the crew productive on interior work while the committee meets. The alternative, starting demo before approval and then undoing drywall or tile to match the approved palette, is the single most common failure mode we’re called in to fix. We would rather not create the problem.
Trusted Brands We Service in Hillsborough
We carry lines you can look up: Simonton windows, certain branded fixtures and valves, and premium tile lines that hold their finish in humid Hillsborough bathrooms. For exterior-adjacent openings, we’ve paired Simonton units with the Town’s strict massing and material standards when the design required a window change. When Hillsborough homeowners ask about impact-rated or coastal-rated glass, we’re honest about what the Town will approve and what it won’t; we’re not going to sell a window package the ARB will bounce. We keep samples local and can bring a board to your kitchen table before you decide.
Common Bathroom Remodeling Problems We See in Hillsborough Homes
- Demo before ARB approval. We’ve walked into jobs where a crew opened a bathroom wall and exposed a changed vent or enlarged window that had no Town sign-off. The result: stop work, backfill drywall, and a timeline that slips two months. We file first, demo second.
- Skylight plans near heritage oaks. Hillsborough’s tree-protection ordinance can require an arborist report before any grading or roof penetration near a protected mature oak. Ignore that and the Town issues a stop-work order. We bring the arborist in before the plan set is sealed.
- Loose plumbing fixture allowances. In a market where the ARB requires exact specs, a “plumbing allowance” that isn’t on paper becomes a change-order dispute. We write every fixture, finish, and allowance into the scope before work begins, and any change arrives as a written change order.
- Post-and-pier foundation surprises. Many Hillsborough hillside homes sit on original post-and-pier or cripple-wall foundations. A tub-to-shower conversion that adds a heavier tile load or moves a drain can expose structural work the original quote never covered. We inspect the subfloor before finalizing the number, not after.
Pricing for Bathroom Remodeling in Hillsborough, CA
Here’s what you can expect to pay in 94010. These are Hillsborough-market ranges, not Bay Area averages, and they assume unnamed allowances are written into the contract before work starts. A full bathroom remodel runs $9,000 to $28,000. A small bathroom remodel runs $5,000 to $12,000. Walk-in shower installation runs $4,500 to $12,000. Tub-to-shower conversion runs $3,500 to $10,000. Bathroom vanity installation runs $800 to $3,000.
| Bathroom Remodeling Service | Typical Hillsborough Price 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 number in Hillsborough is the approval layer. A bathroom that doesn’t touch an exterior wall or window can move fast. A bathroom that changes a window opening, adds a skylight near a heritage oak, or reworks an exterior vent carries the review weeks and the architect-stamped drawings. We give you a written, line-item quote before you sign, and the price doesn’t change unless you change the scope. If you want a second opinion on another written estimate, we’ll provide one free. Call (877) 610-1318 to schedule your free estimate. We’ll help you price the job honestly, including the weeks the Town will take.
We Also Serve Cities Near Hillsborough
If your home sits just outside the 94010 line, we serve Hillsborough neighbors in Burlingame, Millbrae, San Mateo, and San Bruno, and we’re a short drive from each. While those cities don’t carry the Town-level architectural review layer, we bring the same written-scope, permit-pulled, 90-Day Done Right standard to every bathroom we remodel. Call us if you’re on the border and aren’t sure which permit path applies to your project.
Serving Hillsborough, CA - Our Local Coverage Area
We’re based in the Hillsborough 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 Hillsborough
Only when you change the exterior envelope. A bathroom that reworks the shower, vanity, or tile behind existing walls usually needs only a standard building permit. But the moment your plan moves a window, adds a skylight, relocates an exterior vent, or changes any stucco or roofline visible from the street, the Town’s Architectural Review Board becomes the gatekeeper, and that adds 4-8 weeks plus an architect-stamped submittal packet. We’ll tell you at the walkthrough which path your project takes. Call (877) 610-1318 to get started.
We sequence the work so the crew stays busy on interior-only scope while the committee reviews the exterior portion. Framing, plumbing rough-in within existing walls, electrical, and shower pan prep can all proceed on a standard permit while the ARB package works its way through the Town calendar. We hold only the exterior-adjacent work for the committee’s sign-off. No sitting half-finished. No undoing drywall later. If you want to see a real sequencing example, ask us about the 1930s estate off Crystal Springs Road where we converted a tub and kept a 10-week schedule with zero change orders.
Yes, with the right subfloor prep. Hillsborough’s hillside lots often sit on post-and-pier or cripple-wall framing, and clay soil expansion means the floor moves. We inspect the joist spacing and level before finalizing the number, and we spec the pan and waterproofing to handle the movement so a curbless shower doesn’t crack at the grout line. On steep lots, we may also need a drainage check if the addition changes load on a slope. We price that into the written quote, not as a change order later. Call (877) 610-1318 and we’ll inspect before you commit.
Include architect-stamped drawings, a materials board with the exact window unit and trim color, a note matching any exterior stucco or vent color to the existing finish, and site photos showing the existing condition. If any protected oak is near the window or drain line, add a certified arborist letter confirming no impact. We assemble the packet for you, because Hillsborough’s comment process bounces incomplete submittals and every bounce adds weeks. If you’d like us to review a packet before you file, call (877) 610-1318; we’ll check it at no charge.
A full bathroom remodel in Hillsborough runs $9,000 to $28,000, which is typically $2,000 to $6,000 more than a comparable job in flat cities like Burlingame or San Mateo when the project touches the exterior. The difference is the architect’s submittal, the Town review calendar, and the extra care hillside foundations and tree ordinances demand. If your job stays fully interior, Hillsborough prices line up close to the rest of the Peninsula. We’ll show you exactly which line items apply to your job before you sign. Call (877) 610-1318 for a free, written estimate.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Hillsborough since our founding in 1998.







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