Fast, Reliable Bathroom Remodeling Across La Verne
Bathroom remodeling in La Verne typically runs $18,000 – $38,000 for a full gut-and-replace, while an ADU bathroom finish sits closer to $9,000 – $16,000 when the rough-in is already in place. Most jobs take two to four weeks once permits clear. As a La Verne-focused ADU and remodeling contractor, we know the difference between a house near Old Town that triggers design review and one off Wheeler Avenue that doesn’t. Call (855) 617-6356 and we’ll give you a straight answer about your lot before you spend a dime.
Why Holloway ADU Builders Is La Verne’s Preferred Bathroom Remodeling Company
We’re not a generalist remodeler dabbling in bathrooms. We’re an ADU-first builder led by Neil Trescott, and that changes how we approach every bathroom we touch in La Verne. When the bathroom sits inside an ADU, the ventilation, waterproofing, and wind-load details aren’t optional extras. They’re the difference between a unit that passes final inspection and one that gets a red tag.
La Verne homeowners call us because we understand the City’s locally administered ADU ordinance and how the Old Town La Verne Specific Plan layers on top of it. That’s not something you learn from a YouTube video. It’s something you learn by submitting plans, sitting in on plan-check comments, and putting work through inspection on real La Verne parcels. Our Bathroom Remodeling team has done exactly that, from 91750 foothill properties to single-story ranches near Damien High.
We show up when we say we will, we answer the phone, and we give you a written line-item quote so you can see exactly where your money goes. No vague allowances. No change orders because someone “forgot” a line item.
Our Bathroom Remodeling Services in La Verne
ADU Bathroom Rough-In and Finish
We run the DWV and water supply lines, set the shower pan, hang and finish the board, then move into finish work: tile, fixtures, vanity, glass. Because we treat ADU bathrooms as an integrated part of the ADU build, not a bolt-on afterthought, your rough-in coordinates with the wall framing, window placement, and exhaust routing from day one. In La Verne, that matters when your ADU sits behind a 1920s bungalow with a nonconforming rear setback and the bathroom layout has to squeeze into a footprint the City already approved.

Ventilation and Exhaust Fan Upgrades
This is where La Verne-specific code knowledge changes the quote. The City’s ADU ordinance requires continuous-flow ventilation in ADU bathrooms, not the cheap intermittent fan you’d find on a big-box shelf. Santa Ana wind events, which hit the foothill side of La Verne with real force, mean the roof cap needs a wind rating. We specify 110 mph-rated caps and engineer-stamped attachments when the Old Town Specific Plan triggers design review. A standard $60 fan with a plastic cap fails on both counts.

Waterproofing and Tile Shower Systems
A tiled shower is only as good as the waterproofing underneath it. In La Verne’s older housing stock, we regularly find what’s beneath the old tile: dry rot from failed pans, framing that lost the battle with decades of humidity, and substrates that were never properly sloped. We rebuild with sloped mortar beds or curbless systems that meet the City’s ADU accessibility standards, then waterproof the entire wet zone with bonded sheet membranes before the first tile goes up. Hidden leaks are the kind of failure you don’t see until insurance denies the claim.

Full Bathroom Remodeling
For primary-home bathrooms in La Verne, we handle the full scope: demo, rough-in reconfiguration, electrical, insulation, drywall, tile, cabinetry, and finish trim. Your house on Emerald Avenue gets the same line-item quoting and the same attention to code detail as our ADU work. If your bathroom remodel is part of a larger ADU project, one contractor relationship covers the whole thing from foundation to finished bathroom.

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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in La Verne
La Verne homeowners choose different ADU paths, and we work across that spectrum. For those going the prefab route, we’re authorized to work with Mighty Buildings and Boxabl, and we also handle Tuff Shed conversions where the bathroom rough-in needs to be built out inside an existing shell. Whatever route you take, the bathroom finish work rides on the same local code knowledge and the same wind-rated, continuously-ventilated, waterproofed detailing. We don’t stock parts for you to schlep across town. We bring what your project needs and install it right the first time.
Common Bathroom Remodeling Problems We See in La Verne Homes
- Standard bath fans with plastic roof caps that fail under Santa Ana uplift. We see these on ADUs and older homes across La Verne. The cap cracks or the seal lifts, and the first rain sends water into the ceiling cavity. By the time the stain shows, the damage is done.
- Mature citrus trees constraining drain line runs. Older La Verne lots, especially around Old Town and the foothill edges, have orange and lemon trees that overhang the exact zone where a new bathroom drain line needs to go. Skipping arborist review and root-zone protection can trigger a stop-work order and a dead or damaged tree you’ll miss for years.
- Tile shower pans with no sloped mortar bed. We’ve torn out showers in La Verne where water pooled in the corner because the pan was set flat. The leak didn’t show for a year. Then the subfloor failed. Insurance denied the claim because the original work wasn’t permitted.
- ADU bathrooms that fail design review because exterior penetrations weren’t documented. In Old Town La Verne, every exterior wall and roof penetration on an ADU can require engineer-stamped attachments. A contractor who doesn’t know the Specific Plan will install the fan and call it done. The City calls it back.
Pricing for Bathroom Remodeling in La Verne, CA
Here’s what we see in the La Verne market right now:
- ADU bathroom finish (rough-in already done): $9,000 – $16,000
- ADU bathroom full rough-in plus finish: $14,000 – $22,000
- Primary-home full bathroom remodel (gut and replace): $18,000 – $38,000
- Ventilation and exhaust fan upgrade with wind-rated cap: $650 – $1,400 depending on roof access and documentation
- Tile shower system with full waterproofing: $4,500 – $9,000 depending on size and tile selection
Your price moves with the size of the room, the tile you pick, whether plumbing fixtures need to move, and whether your parcel falls under Old Town design review. A compliant quote includes the line items a cheap quote misses: wind-rated roof cap, continuous-flow exhaust, sloped waterproof shower system, and the engineering documentation the City wants to see. Call (855) 617-6356 for a free written estimate. We’ll walk the scope with you and tell you exactly what your parcel requires.
We Also Serve Cities Near La Verne
Our crew works across the eastern San Gabriel Valley. Beyond La Verne, we regularly take bathroom remodeling and ADU projects in Claremont, Pomona, Montclair, and Upland. If you’re in one of those cities, the same local code knowledge applies, adjusted for each city’s own ordinance.
Serving La Verne, CA — Our Local Coverage Area
We’re based in the La Verne 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 La Verne
Yes. La Verne’s ADU ordinance requires continuous-flow ventilation in ADU bathrooms, and any exterior roof penetration should carry a wind-rated cap. We specify 110 mph-rated caps, especially on the foothill side of La Verne where Santa Ana winds hit hardest. The cap itself needs an engineer-stamped attachment when the Old Town Specific Plan triggers design review. A standard plastic cap does not meet the standard. Call (855) 617-6356 and we’ll tell you what your parcel needs.
The Specific Plan imposes design-review requirements on certain parcels near Old Town La Verne. That means exterior penetrations, including a bathroom exhaust fan vent, roof cap, or any wall penetration, may need engineer-stamped documentation. The same fixture a mile east might sail through. Your parcel either triggers review or it doesn’t, and we screen for that before we quote. Contact us for a free estimate.
The canopy and root zone of a mature citrus tree can force your new bathroom’s drain line to reroute, and cutting roots without arborist review can damage the tree and trigger a stop-work order. On older La Verne lots, especially near Old Town and the foothill edges, we evaluate the drip line before we set the bathroom footprint. Sometimes the tree stays and the bathroom shifts. Sometimes the bathroom stays and the line runs around the root zone. You’ll know before we dig.
A compliant quote should include line items for the wind-rated roof cap, continuous-flow exhaust fan, and any engineer-stamped attachments required by the Old Town Specific Plan. For showers, it should specify the waterproofing system, not just “tile work.” If a leak or wind failure happens later, your insurance carrier will ask whether the work was permitted and whether the materials met local code. Documented compliance is what keeps a claim alive. We’ll show you exactly what we’re installing and why.
Yes. Bathroom work in an ADU requires permits in La Verne, including for rough-in plumbing, electrical, ventilation, and waterproofing. The City’s locally administered ADU ordinance governs the unit as a whole, and the Old Town Specific Plan adds design-review layers on certain parcels. We pull the permits, coordinate the inspections, and make sure the paperwork matches the work on-site. Call (855) 617-6356 to schedule a free estimate and we’ll walk you through the process for your specific property.
Why the Local Ordinance Changes Everything
Here’s what we’ve learned working in La Verne that no generic bathroom remodeler will tell you: because La Verne’s ADU ordinance is locally administered and layered with the Old Town La Verne Specific Plan, a bathroom exhaust fan in a new ADU near the historic downtown may trigger design-review scrutiny that an identical fixture a mile east would not. The same $180 fan can carry different documentation requirements parcel by parcel. That’s not a county standard. It’s a La Verne reality.
We recently finished a bathroom remodel for an ADU behind a 1920s citrus-era bungalow in Old Town La Verne, where the rear garage sat on a nonconforming setback. Our tech upgraded the bath exhaust to a continuous-flow system and specified a wind-rated roof cap rated for 110 mph to handle Santa Ana events. The City’s ADU-specific standards allowed the detached unit to proceed without a variance, but the specific-plan design review required us to document every exterior penetration with engineer-stamped attachments for future insurance review. That’s the difference between a quote that gets approved and a quote that gets sent back.
La Verne sits at the base of the San Gabriel Mountains. Hot, dry summers demand real cooling load thinking. Santa Ana events test every exterior penetration. Intense winter storm bursts check your roof and landscape drainage. A bathroom remodel that ignores those realities isn’t cheaper. It’s just unfinished.
We work with the industry’s leading ADU manufacturers, including Mighty Buildings and Boxabl, plus Tuff Shed conversions, so you’re never locked into one path. One team from foundation to finished bathroom. That’s how we do it in La Verne.
Call (855) 617-6356 to schedule your free estimate. We’ll come out, look at your lot, screen the specific-plan triggers, and give you a written quote you can take to the bank.
Written by Neil Trescott, Owner at Holloway ADU Builders, serving La Verne and the eastern San Gabriel Valley.