Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Altadena
Bathroom remodeling in Altadena typically runs $9,000 to $28,000 for a full project, with most work taking three to six weeks once the permit is in hand. We’re Barrett & Sons Construction, and we’ve been walking through houses in the 91001 and 91003 zips long enough to know what’s behind the tile in a 1920s Craftsman or a 1950s ranch before we even open the wall. Call (877) 610-1318 and Tom or one of his sons will answer, talk through your scope, and come out for a free estimate. No call center, no out-of-state voice.
Why Barrett & Sons Construction Is Altadena’s Preferred Bathroom Remodeling Company
Tom Barrett founded this company in 1998, and his sons have been running crews ever since. When we say we know Altadena, we mean we know that LA County, not a city hall, issues your permits. We know the difference between a 1920s bungalow off Lake Avenue and a mid-century ranch up near the foothills off Loma Alta. We’ve pulled permits through the County’s Department of Public Works on dozens of jobs across Altadena, and the inspector who signs off on your rough-in is someone we’ve worked with before. That relationship matters when an unexpected condition shows up behind a wall.
Our Bathroom Remodeling team works the way you’d want a neighbor to work. Every scope item goes in writing. Every allowance gets a dollar figure before the first stud is touched. If a change is needed, you get a written change order with a price and you approve it before we proceed. We do not surprise anybody at the end of a job. Tom publishes his name, his address, and his license number. Look us up. Ask anyone on your street.
We answer the phone 24/7. A live person, every time. And when the job is done, you get our 90-Day Done Right Promise written on the contract: if something isn’t right, one call brings Tom back to make it right. That’s not a slogan. It’s a guarantee we’ve honored for over 29 years.
Our Bathroom Remodeling Services in Altadena
We handle every part of a bathroom remodel, and we do it with crews who understand what Altadena’s housing stock actually looks like once the drywall comes down. Here’s what Altadena homeowners call us for most often, along with our Driveway & Pavers in Altadena.
Full Bathroom Remodeling
A full bathroom remodel in Altadena means gutting the room, addressing whatever’s behind the walls, and rebuilding to current County code. In the Altadena area, that often means reworking plumbing that’s been in the slab since Eisenhower was president. We handle demolition, framing, waterproofing, tile, fixtures, electrical, and finish work. One crew, one schedule, one accountable name on the contract.

Walk-In Showers & Shower Remodeling
Walk-in showers are the most requested remodel in Altadena right now, especially in 1950s ranches where the original tubs are too narrow for aging homeowners. We frame for proper slope, install a mortar bed with modern waterproofing, and build the curbless entries that make sense for people who want to stay in their homes. A typical walk-in shower installation here runs $4,500 to $12,000 depending on tile selection and whether the studs need reframing once we open the wall.

Tub-to-Shower Conversion
Converting a tub to a shower in an Altadena bathroom usually runs $3,500 to $10,000. The cost swings on what we find underneath. In older homes, the original mortar bed was often laid directly on board sheathing with no waterproofing. That means rot. That means wall deflection. That means reframing studs before tile goes up. We find this on roughly half the pre-1970 conversions we do in Altadena, which is exactly why our contracts include a written allowance for structural corrections. You see the number before we spend it.

Vanities, Tile & Fixtures
Bathroom vanity installation in Altadena runs $800 to $3,000, and we stock premium brands our customers can look up. Simonton and Ply Gem products come up often on bathroom window replacements tied to a remodel, similar to the Altadena Windows & Doors work we do. We install tile from local distributors who serve the San Gabriel Valley, which means short lead times and no shipping surprises from across the country. Fixtures get spec’d in writing with part numbers before we order anything.

What happens when you call
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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.
Trusted Brands We Service in Altadena
We install materials you can verify, not mystery brands off a van. For bathroom windows that often get replaced during a remodel, we work with Simonton and Ply Gem, both of which meet the energy and fire-resistance standards Altadena’s Wildland-Urban Interface code requires. PGT is another option for impact-rated glass where the home sits close to the foothill vegetation line. And for shower enclosures and fixtures, we specify brands with real warranties and local parts availability. When you need a replacement hinge or cartridge five years from now, you won’t be hunting for a discontinued product.
Common Bathroom Remodeling Problems We See in Altadena Homes
- Knob-and-tube wiring behind tile: We open walls in pre-1950 Altadena homes and find knob-and-tube wiring that has been buried for decades. LA County code does not allow us to close that wall back up. The wiring must come out, which means a mandatory electrical upgrade before rough-in can continue. Our contract includes an allowance for this specifically because we see it so often.
- Rotted framing from shower-pan leaks: Original showers in many Altadena homes were built with mortar beds laid directly on wood sheathing. No waterproofing, no liner. Years of small leaks rotted the studs and the subfloor. We sister the framing, replace the subfloor sections, and build the new shower with a proper liner and slope before any tile is set.
- Fire-retardant insulation and ember-resistant vent requirements: Altadena sits in a designated Very High Fire Hazard Severity Zone. When a County inspector looks at an exposed wall cavity, certain fire-resistant materials and ember-resistant vent boxes are required. If your contract doesn’t include a written allowance for these, you’re getting a $3,000-plus surprise at the inspection. We put it in writing up front.
- Slab plumbing that’s done its time: Many 1950s and 1960s Altadena homes have cast-iron drain lines in the slab. Once we open the floor for a walk-in shower or a tub replacement, corroded sections are often exposed. We write a plumbing allowance into every contract so you know the range before we cut, not after.
Pricing for Bathroom Remodeling in Altadena, CA
Here are the real numbers for Altadena’s market right now. These are our working ranges, and they’re based on what we’ve actually priced and built in the 91001 and 91003 zips this year.
| Project | Price Range in Altadena |
|---|---|
| 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? Tile choice is a big one. A basic porcelain from a local distributor runs far less than a hand-set marble or glass mosaic. Structural conditions behind the walls move it too. Our written estimate includes an itemized scope with allowances for known unknowns, so you’re not guessing. Call (877) 610-1318 and we’ll come out, open the walls if you’ll let us, and give you a line-item price before you sign anything.
We Also Serve Cities Near Altadena
Our crews work throughout the San Gabriel Valley foothills. If you’re in Bathroom Remodeling in Altadena and need coverage nearby, we also serve Pasadena, La Cañada Flintridge, East Pasadena, and San Marino. Wherever the job is, the same owner-operated crew shows up, the same written change order policy applies, and the same 90-Day Done Right Promise covers the work.
Serving Altadena, CA - Our Local Coverage Area
We’re based in the Altadena area and know this community well, from Fence Installation in Altadena to full remodels. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Bathroom Remodeling in Altadena
Yes, you need a permit for a bathroom remodel in Altadena, because this is an unincorporated Los Angeles County community and all permit and inspection activity runs through LA County’s Department of Public Works, not a city building department. If the home is in the Eaton Fire burn zone, the permit path is different and more involved. Soil contamination testing is often required before any foundation or slab work, and the County will hold the permit to stricter Wildland-Urban Interface standards for exposed wall assemblies and fire-resistant materials. We handle the permit paperwork and the County scheduling so you don’t have to navigate that system alone. Call (877) 610-1318 and we’ll walk you through what your specific property requires.
The most common code issue in a 1950s Altadena bathroom is the electrical wiring hidden behind that plaster. If we find knob-and-tube, which is common in homes of that era, L.A. County won’t let us close the wall until it’s replaced with modern wiring and arc-fault breakers. You should also expect the inspector to require fire-retardant insulation and ember-resistant vent boxes in the exposed cavity, because Altadena falls under the Very High Fire Hazard Severity Zone. Both of these are predictable costs when you work in this area. We write allowances for them into your contract before we start, so they never arrive as a surprise. Get a free estimate by calling (877) 610-1318.
You can absolutely keep a clawfoot tub in an Altadena remodel. VHFHSZ rules govern wall assemblies, venting, and fire-resistant materials, not whether the room has a tub or a shower. We have restored original clawfoot tubs in some of the nicest Craftsman bathrooms up and down Lake Avenue. What changes once the walls are open is the fire-related code work behind the tub, not the tub itself. We’ll work around your original fixtures and build the fire-rated assembly the County requires without losing the character of the house. Call (877) 610-1318 to talk through your specific space.
Because Altadena is subject to county-level Wildland-Urban Interface building codes that Pasadena, as a separate city with its own building department and different fire zoning, does not always enforce in the same way. Once we open a wall in Altadena, the County inspector may require fire-retardant insulation, ember-resistant vent boxes, and specific wall assembly ratings. A quote that doesn’t carry a written allowance for these is leaving you exposed to a change order. We include it because we have seen the inspection. Call (877) 610-1318 for a quote that actually reflects what Altadena’s inspectors will ask for.
The punch list works the same way it does anywhere else, except the inspector signing off is from LA County, not a city. When we finish, you walk the room with the crew lead and note anything that isn’t right, a loose tile, a misaligned cabinet door, a valve that drips. We put it on a written list and we fix it. County inspection happens at the required stages: rough-in and final. If the inspector flags something, we correct it. Then our 90-Day Done Right Promise begins from the day we finish and you accept the work. One call brings Tom back. Call (877) 610-1318 to schedule your free estimate and get your scope in writing.
What a Bathroom Remodel in Altadena Actually Requires Once Walls Are Opened
Altadena is an unincorporated Los Angeles County community, which means your bathroom remodel permit is issued and inspected by the LA County Department of Public Works, not a city building department. That distinction matters more than most homeowners realize. Once we open a wall, all exposed work must meet current Very High Fire Hazard Severity Zone Wildland-Urban Interface code requirements. Those requirements do not apply uniformly in neighboring Pasadena. We know this because we’ve gone through the inspections. We’ve had County inspectors ask for fire-retardant insulation in a bathroom wall cavity while the homeowner across the street in Pasadena, same house age, same remod scope, never heard a word about it. We know what the County asks for before we submit the drawings. That’s the value of a local contractor in Altadena specifically.
On a 1920s Craftsman bungalow off Lake Avenue in the 91001 zip, our crew opened up a bathroom to find knob-and-tube wiring, a rotted 2×4 load-bearing wall from years of shower-pan leaks, and a subfloor with sections that had turned to powder. We stopped work, pulled a County permit, brought in our electrician to replace the wiring with arc-fault breakers, sistered the framing to carry the new walk-in shower, and wrote the unexpected conditions into a change order before touching the finish work. The inspection sign-off from LA County confirmed the wall assembly met VHFHSZ standards before we closed it up. That’s how a job should go. Everything in writing. Every surprise priced and approved before we spend your money.
If you’re planning a bathroom remodel in Altadena, especially in an older home or anywhere near the foothills, call (877) 610-1318 and ask for a free estimate. We’ll inspect before we quote, put your allowances in writing, and show you exactly what the County will require. No surprises. No mystery. Just a job done right, priced honestly, and backed by a name you can look up.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Altadena and the San Gabriel Valley since 1998.







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