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 Larkspur
A full Bathroom Remodeling project in Larkspur typically runs $9,000 to $28,000, with small bathrooms starting around $5,000 and walk-in shower installations landing between $4,500 and $12,000. We’re Barrett & Sons Construction, an owner-operated crew that has built our name on showing up when we say we will and putting every price change on paper before a single nail moves. Call us at (877) 610-1318 for a free estimate, and Tom or one of his sons will walk your Larkspur bathroom with you before anyone quotes a number.
Larkspur is not one kind of town, and your bathroom remodel is not one kind of job. The flat streets of Old Town along Magnolia Avenue hold early-1900s Craftsman bungalows with pier-and-post foundations and original redwood framing. The canyon roads winding up into Baltimore Canyon hold mid-century homes on steep, irregular lots where Cal Fire codes govern nearly every exterior change. We work both zones, and we know what each one throws at you when a wall comes open.
Why Barrett & Sons Construction Is Larkspur’s Preferred Bathroom Remodeling Company
We’ve been remodeling homes in Marin since 1998, and we’ve spent enough days in Larkspur’s 94939 and 94977 neighborhoods to know what’s behind the walls before we open them. Tom Barrett puts his name, his address, and his license number on every contract, and he answers his own phone. When you call about a Larkspur bathroom, you talk to someone who knows what a Baltimore Canyon driveway looks like and what a 1920s Old Town bathroom usually hides.
Every eligible Larkspur job includes permits pulled and inspections signed. That matters more here than most places, because opening a bathroom in this city can trip a seismic retrofit requirement on a pier-and-post foundation or a Cal Fire defensible-space review on a hillside parcel. We plan for that on day one. Any change to scope or materials comes to you as a written change order before work continues. No invoices you didn’t see coming.
We’re local enough that if something isn’t right, Tom can drive over and look at it. The 90-Day Done Right Promise is written on every contract: one call brings Tom back. That’s not a tagline. That’s what owning the job looks like.
Our Bathroom Remodeling Services in Larkspur
Full Bathroom Remodeling
A full bathroom remodel in Larkspur means gutting to the studs and building back correctly. In Old Town, that often means replacing rotted subfloor, addressing knob-and-tube wiring remnants, and installing a properly waterproofed shower system before tile goes in. On a Baltimore Canyon hillside, the same scope may also require ember-resistant venting and fire-hardened materials to pass final inspection. We quote the real job, not the pretty picture.
Walk-In Showers & Shower Remodeling
Walk-in showers are the most common request we get from Larkspur homeowners in their 50s, 60s, and 70s. We install Schluter waterproofing systems under tile, build curbless entries where floor framing allows, and work with Grohe or Sterling fixtures depending on your budget. A walk-in shower installation in Larkspur runs $4,500 to $12,000, with the higher end reflecting the framing and waterproofing corrections these older homes usually need.
Tub-to-Shower Conversion
Converting a tub to a shower in Larkspur usually costs $3,500 to $10,000. What moves the number is what we find when the tub comes out: rotted subfloor from decades of slow leaks, undersized joists, or a drain line that needs repositioning. We handle those as written change orders, approved by you in writing before we proceed. No surprises at the end.
Vanities, Tile & Fixtures
We install bathroom vanities in Larkspur for $800 to $3,000, and we carry premium lines you can look up, including Grohe and Sterling fixtures. For tile, we set on cement backer board systems that hold up to Larkspur’s damp winters. A bathroom in this valley sees more prolonged moisture than most of Marin, and cheap waterproofing fails quietly for years before you ever see it.
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 Larkspur
We install and stand behind brands with real warranties and verifiable specifications: Schluter waterproofing systems, Grohe fixtures, and Sterling tub and shower units. We also work with GAF materials when a bathroom project touches an exterior wall or roof penetration on a hillside home. If you have a preference, we’ll quote it. If you don’t, we’ll recommend what we’d put in our own homes up here.
Common Bathroom Remodeling Problems We See in Larkspur Homes
- Rotted subfloor from damp winters. Larkspur sits in a valley that funnels marine moisture inland from the bay. That means prolonged damp that rots subfloor around tubs, toilets, and showers in older homes faster than homeowners expect.
- Knob-and-tube wiring behind Old Town walls. A 1920s bathroom on Magnolia Avenue often still has original wiring. Open the wall to move a light fixture, and the new circuit can overload it, forcing a rewire before rough-in inspection passes.
- Failed waterproofing from original construction. Many bathrooms built before modern membranes went in have tile set directly on green board. Twenty or thirty years later, the wall crumbles behind the tile. We find this constantly in Larkspur’s older stock.
- Baltimore Canyon access problems. Roads too narrow and steep for a flatbed mean the crew hand-carries every sheet of subfloor, backer board, and sometimes a tub, up a switchback driveway. Out-of-area contractors routinely underbid this reality until they see the site.
Pricing for Bathroom Remodeling in Larkspur, CA
Here’s what we quote for Larkspur work, based on the homes we actually see here:
| Project | Typical 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 a Larkspur bathroom from the low end to the high end is rarely the tile you pick. It’s what we find when the walls come open: rotted framing, outdated wiring, a foundation that needs seismic attention, or Cal Fire venting requirements on a hillside. We write allowances into the contract for exactly these discoveries. An allowance that isn’t on paper is a surprise waiting for a date. Call (877) 610-1318 for a free estimate, and we’ll give you a written, line-item quote before you sign anything.
We Also Serve Cities Near Larkspur
Our crews serve Bathroom Remodeling in Larkspur and the surrounding communities, including Corte Madera, Kentfield, Mill Valley, and Tamalpais Valley. If you’re just over the line in one of those towns, the same written change-order process and 90-Day Done Right Promise apply.
Serving Larkspur, CA - Our Local Coverage Area
We’re based in the Larkspur 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 Larkspur
Yes, it can. When we open walls or move plumbing in a 1920s pier-and-post home, the building department may require seismic strengthening of the foundation before we can close things up. That’s a code trigger tied to the scope of the work, not something we invent. We flag it during the initial walk-through and write it into your estimate as a budgeted line item so it doesn’t hit you as a surprise later. Call (877) 610-1318 and we’ll tell you, in writing, whether your project is likely to trigger it.
Because the site is harder. Baltimore Canyon roads are too narrow and steep for standard construction vehicles, so crews often hand-carry lumber, concrete board, tubs, and equipment up switchback driveways. Hillside parcels also fall within Cal Fire’s State Responsibility Area, which means ember-resistant venting and fire-hardened materials that flatland Corte Madera jobs don’t require. The extra cost is labor and code compliance, not markup.
With us, you’ll already know it’s a possibility because we write an allowance for it into the contract. If we open a wall and find rotted subfloor, we stop work, write a change order for the new plywood and cement backer board system, and you approve it in writing before we proceed. With most contractors, you find out when the final bill arrives. That’s the difference. Call (877) 610-1318 to talk through what your bathroom might be hiding.
Yes. Larkspur requires a permit for plumbing fixture changes, and a tub-to-shower conversion changes the drain configuration and the waterproofing assembly behind the wall. We pull permits on every eligible job. It protects you at resale and in the event of a leak claim. The permit inspector works for you, not for me, that’s why I like him.
We install WaterSense-certified fixtures that meet Marin’s water-efficiency standards, and on Baltimore Canyon hillside parcels we install ember-resistant venting that passes Cal Fire inspection. These are not optional add-ons. We build them into your quote from the start. Call (877) 610-1318 for an exact quote, estimates are free.
What Larkspur’s Old Walls and Steep Driveways Really Add to Your Remodel
Here’s the thing most remodeling pages won’t tell you. Larkspur’s geography splits your bathroom remodel into one of two very different jobs, and neither is what a national company quotes from a call center. In flat Old Town, you’re working in early-1900s housing stock with pier-and-post foundations, original redwood framing, and a century of repairs layered on top. Open a bathroom wall on Magnolia Avenue, and you might find knob-and-tube wiring that overloads the moment the new circuit draws power, requiring a rewire before rough-in inspection can pass. You might find studs that are undersized by modern code, or subfloor that has been quietly rotting under tile for years.
In the canyons above the flats, the job changes entirely. Baltimore Canyon homes sit on steep, irregular lots inside Cal Fire’s State Responsibility Area. That means the venting on an exterior bathroom wall has to be ember-resistant. The siding and openings have to meet fire-hardening standards. And the practical reality that out-of-area contractors never price correctly: the road may be too steep and narrow for any delivery truck. On one Baltimore Canyon hillside home, our crew hand-carried a Kohler cast-iron tub and concrete board up a narrow switchback driveway because no truck could reach the site. When we opened the bathroom walls, we found failed waterproofing and rotted subfloor, so we wrote a change order for new plywood and a cement backer board system before any tile went in, and the owner approved it in writing that afternoon.
That’s the job. That’s what we price. And that’s why our quotes carry written allowances that cover what we can’t see until the wall comes open.
If you’re in Larkspur and you’re tired of contractors who underbid the canyon access and then send you change orders you never approved, call (877) 610-1318. Tom Barrett or one of his sons will walk through your bathroom, tell you what he expects to find, and hand you a written estimate with scope, allowances, and price changes documented before work begins. We’ve been doing this since 1998, and the 90-Day Done Right Promise means if it’s not done right, one call brings Tom back. Ask anyone on your street, or look up the license number yourself.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Larkspur since 1998.