Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Kohler Construction in Los Serranos, CA | Polaris Contractors
We provide independent Kohler construction service across Los Serranos, from fixture installs and tub-to-shower conversions to full bathroom remodels in hillside ranch homes and slope subdivisions. What makes our Kohler work different here is simple: we’ve spent years setting and troubleshooting these fixtures against the Chino Hills State Park boundary, where drainage review and runoff control shape every remodel before the first tile goes down. Call (855) 473-6535 for a free estimate, and you’ll get one team managing the full scope, from rough-in to finish trim.
Why Los Serranos Residents Choose Us for Kohler Service
Kohler builds fixtures that last decades, but Los Serranos tests them harder than most places. Hard inland water, hot summers, and hillside lots with real grade changes mean a Kohler faucet or tub that works fine with Kohler repair in Chino can seize, drip, or shift here within a few seasons. We know exactly how Kohler’s products behave in this terrain because we’ve pulled apart enough of them in Los Serranos bathrooms to see the patterns.
Rick Sondermann grew up in Corona del Mar and has spent nearly three decades building and renovating homes up and down the Southern California coastline. He learned construction fundamentals at Saddleback College in Mission Viejo, where hands-on coursework in building technology and estimating gave him a foundation he still draws on every day. That background shapes how our crews approach Kohler work in Los Serranos: we set fixtures to hold up against the local water, the local soil movement, and the local drainage demands, not just to look right on install day.
We’re an independent contractor, not a Kohler-authorized or manufacturer-backed service provider. That independence means we recommend what actually works for your Los Serranos home, whether that’s a genuine Kohler cartridge for a Purist faucet or an honest conversation about when a 40-year-old Bellwether tub should come out instead of getting patched again. As a full-scope general contractor, we also handle everything around the Kohler fixture: the wall framing, the drain re-grade, the waterproofing, the finish work. Kohler sales & service is one part of our broader residential remodeling scope, not a side hustle.
Styles & brands we work with







Common Kohler Construction Problems We Solve in Los Serranos
- Stiff or dripping Artifacts and Purist faucets. Kohler’s ceramic cartridge faucets are excellent, but years of hard Los Serranos water and hot-summer mineral buildup cause the cartridges to seize or weep at the base. Handles get stiff, then drips appear. We replace the OEM cartridge and clean the valve body rather than swapping a good fixture for a cheap one.
- Chipped or crazed enamel on Bellwether cast-iron tubs. When older Los Serranos ranch bathrooms get demo’d for a tub-to-shower conversion, the enamel rim on a cast-iron Kohler tub chips easily if the demo crew rushes. We see this constantly on the original ranch-era homes near the Los Serranos core. Sometimes the tub is salvageable; often it’s smarter to pull it and set a walk-in shower on a re-graded drain line.
- Santa Rosa and Memoirs toilet gasket leaks and supply-line corrosion. One-piece and skirted Kohler toilets develop tank-to-bowl gasket leaks and supply-line corrosion in Los Serranos homes where seasonal winter runoff and slab movement shift the fixture slightly. A small shift is all it takes to break a seal. We realign, replace gaskets, and use quality supply lines rated for local water conditions.
- Loose Kohler kitchen sinks and heavy brass faucet bodies in older wood-frame counters. In the older stucco-and-wood-frame homes scattered through Los Serranos, aging counters flex. A heavy solid-brass Kohler faucet body won’t seat cleanly without re-blocking underneath. We re-block, reseal, and set the fixture so it doesn’t pull loose in two years.
- Drainage conflicts when moving plumbing on hillside lots. Any Los Serranos remodel that relocates a Kohler fixture on a slope-adjacent lot can conflict with the existing drain path. Winter runoff moves fast off these grades, and a poorly tied shower or vanity drain backs up under load. We address the drainage plan before the Kohler boxes get opened, not after the leak shows up.
Kohler Service in Los Serranos: What Local Conditions Mean for Your Equipment
Los Serranos sits against the Chino Hills State Park boundary, and that changes how a Kohler remodel gets permitted and built. A bathroom or kitchen remodel that moves plumbing or adds a fixture on the hillside edge frequently triggers grading and drainage review from the city and open-space oversight. Winter runoff off steep lots moves quickly, and that water has to be managed before Kohler fixtures go in. On the ranch-era homes along the older Los Serranos core, we’ve seen drain lines that handled a single tub fine for decades suddenly back up when a second shower gets added uphill. The fixture itself is rarely the problem; it’s the grade and the drainage path.
This is what a contractor doing Kohler in Pomona or flat-lot Ontario work won’t tell you, because they don’t deal with it. Los Serranos hillside remodels need sediment control, silt fencing, and drain swales checked before the first rain, and fixture placement has to work with the slope, not against it. When we set a Kohler shower valve or a Santa Rosa toilet in Los Serranos, we’re thinking about where the runoff goes in January. That’s the difference between a remodel that stays dry and one that shows water damage after the first storm season.
Kohler Models & Products We Service in Los Serranos
We install, set, and repair across the Kohler lines Los Serranos homeowners actually put in their homes: Artifacts and Purist faucets, Memoirs and Santa Rosa toilets, Bellwether and Villager tubs, and Cairn and Whitehaven kitchen sinks. Our parts approach is straightforward. We use genuine Kohler OEM cartridges, gaskets, and trim where finish and fit matter, and quality aftermarket for basic supply lines and stops. That keeps your Kohler performing like a Kohler without paying factory markup on every single component.
For Los Serranos turnaround, we stock the common OEM cartridges and gaskets for the Kohler lines we service most, so a stiff Purist handle or a weeping Santa Rosa gasket doesn’t leave you waiting on a parts shipment. If a fixture is sound, we repair it. When an aging enamel tub or valve body is beyond economic repair, we say so honestly and quote replacement within our published ranges. Do it right the first time – the second time always costs more.
See the difference
Before
After
Before
After
Before
AfterKohler Service Pricing in Los Serranos
What you’ll pay for Kohler work in Los Serranos depends on the scope: a tub-to-shower conversion runs differently from a full bathroom remodel, and hillside drainage work may add cost compared to Kohler service in Montclair. Here are the ranges we work within:
| Service | Typical Range in Los Serranos |
|---|---|
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Full Bathroom Remodeling | $9,000 – $28,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
| Shower Replacement | $3,000 – $8,500 |
What drives the number: whether you’re keeping the existing drain or moving it, what’s under the floor once we open it up, and whether the project triggers hillside drainage review. Our free estimate includes a written line-item quote, and we don’t change the price mid-job unless you ask for a change. Call (855) 473-6535 to get an exact number for your Los Serranos home.
Serving Los Serranos, CA — Our Local Coverage Area
We’re based in the Los Serranos 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 – Kohler Construction in Los Serranos
Yes. We set Kohler kitchen sinks, faucets, and related cabinetry in full kitchen remodels throughout Los Serranos, including hillside lots where drainage and grading review apply. We handle the plumbing rough-in, re-blocking for the sink and faucet, and all finish work so the Kohler parts land cleanly. Call (855) 473-6535 to schedule a free kitchen remodel estimate.
No. Polaris Contractors is an independent general contractor serving Los Serranos. We are not authorized, sponsored, or backed by Kohler. We recommend and install Kohler products because they perform well in this area, but we work for you, not the manufacturer.
We use genuine Kohler OEM cartridges, gaskets, and trim wherever the finish and fit matter, and quality aftermarket components for basic supply lines and stops. If you want all-OEM parts on a repair, we’ll quote it that way. Estimates are free – call (855) 473-6535.
Most Los Serranos tub-to-shower conversions run one to two weeks, depending on whether we’re re-grading the drain line and whether the existing cast-iron or supply lines need replacement. We’ll give you a realistic timeline in the written quote. Call (855) 473-6535 to get started.
We service Artifacts and Purist faucets, Memoirs and Santa Rosa toilets, Bellwether and Villager tubs, and Cairn and Whitehaven kitchen sinks across Los Serranos. If you have a different Kohler model, ask us – if it’s a Kohler fixture, we’ve likely worked on it. Call (855) 473-6535 for a quick answer.
Service Areas Near Los Serranos
We serve Los Serranos and the surrounding communities, including Chino Hills, Chino, Ontario, and the hillside neighborhoods along the Carbon Canyon corridor. We also provide Kohler service in El Cerrito Corona and Kohler service in Home Gardens, plus full-scope remodeling across our broader Los Serranos service area.
Book Your Kohler Service in Los Serranos Today
If you’re planning a Kohler tub-to-shower conversion, walk-in shower install, or full bathroom remodel in Los Serranos or need Kohler in Yorba Linda, call (855) 473-6535 to schedule a free estimate. We’ll walk your slope lot, look at your drainage, and give you a written quote with real numbers. Rick Sondermann and the Polaris Contractors team are ready when you are.
Written by Rick Sondermann, Owner at Polaris Contractors, serving Los Serranos and the surrounding hillside communities.