Kitchen remodeling
Bathroom remodeling
Home additions & ADU
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CWS Construction in Ontario, CA | Pinecrest Contractors
We provide independent CWS cabinet, vanity, and finish-line installation across Ontario, CA from our full-scope general contracting team. The thing that sets our CWS work apart here is sequencing: we know when a bath or kitchen scope has to wait on a sewer lateral replacement or subfloor correction first. We’re not affiliated with CWS or any manufacturer. We’re a licensed general contractor who has spent years working Ontario’s postwar tracts, and you can reach us at (855) 702-1622 for a free estimate.

Why Ontario Residents Choose Us for CWS Service
Most CWS cabinets and vanities fail in Ontario for the same handful of reasons, and they’re reasons a coastal contractor never sees. Gil Rourke, our owner, grew up in the Inland Empire and spent years working residential builds across the Temecula Valley before Pinecrest Contractors took on Ontario’s older housing stock. That history matters when a CWS vanity is sitting on a 1962 slab that moves with clay soil, or when a thermofoil door has been baking against a west-facing kitchen wall all summer. We know what to check before we ever open a box.
We’re local to the Ontario service area, and we stock the OEM CWS doors, drawer fronts, and hardware that keep a sound cabinet run serviceable. When a full kitchen or bath is being reconfigured, we switch to spec-matched aftermarket carcasses and hinges. That’s not a compromise. It’s the honest read on what a job needs versus what a salesperson wants to sell you. In central Ontario, that distinction saves homeowners real money.
Styles & brands we work with







Common CWS Construction Problems We Solve in Ontario
- Thermofoil and laminate door blistering on south- and west-facing kitchen walls. Ontario’s summer heat routinely pushes interior surface temperatures past 100°F, and CWS ready-to-assemble cabinet doors bear the worst of it. The thermofoil lifts, peels, and looks shot long before the cabinet box fails. We reface or replace the door set and keep the carcass when it’s still sound.
- Vanity tops and cabinet boxes splitting at the seams east of Euclid Avenue. The 1950s – 70s stucco tracts in 91761 and 91762 sit on clay-heavy soil that expands and contracts with seasonal moisture, and those 1960s slab floors transmit that movement straight up through the cabinet. Seams open, fasteners pop, and the top shifts. We level the subfloor before anything new gets set.
- Particleboard and MDF boxes swelling after a cast-iron drain leak. Ontario’s original cast-iron drain lines and galvanized supply lines are failing across the older housing stock, and when one lets go under a CWS vanity, the box swells and delaminates fast. We replace water-damaged units rather than patching cosmetics, and we fix the plumbing before the new cabinet goes in.
- CWS shower surrounds cracking at the flange on settled bath subfloors. A 1950s – 70s tract bath that’s moved over decades leaves the surround flange stressed and the panels pulling away. We remove the surround, correct the subfloor, and reset with the waterproofing done to manufacturer spec.
- Cabinet hardware and drawer fronts failing from daily use in tract homes. These original CWS runs have decades of open-close cycles on them. Hinges bind, drawer fronts sag, and slides wear out. When the cabinet run still has life, we rehang and rehang properly. It’s cheaper than a full replacement and looks right when it’s done.
CWS Service in Ontario: What Local Conditions Mean for Your Equipment
Central Ontario jobs in 91761 and 91762 routinely stall at inspection for a reason that has nothing to do with the cabinets: the original clay-surrounded cast-iron sewer lateral must be replaced before an ADU or room addition can pass. That’s the reality of working in this part of the city, and it directly changes how we sequence CWS bath and kitchen scope. We don’t set a new kitchen or bath on top of a lateral that’s about to be dug out. The lateral gets replaced first, then the CWS cabinets, vanities, and showers go in. A generic CWS page will never tell you that. Around Holt Boulevard in 91762, we’ve seen it enough times that it’s standard practice on our estimates.
CWS Models & Products We Service in Ontario
We handle CWS specialists ready-to-assemble and assembled kitchen cabinet collections, including the Woodland and Charleston-style door programs sold through Ontario building-supply channels. We also service CWS bathroom vanities and vanity tops sized for 1950s – 70s single-story tract baths, plus CWS quartz and granite countertop slabs and blanks used in central Ontario kitchen remodels. For tract-home rehabs, we stock CWS shower surrounds, tubs, and toilet packages so turnaround doesn’t drag. The right material in the right place, that’s where the job starts. We source OEM when a run is still serviceable, and we’re upfront when a box has reached the end of its life. Learn more about our CWS sales & service approach.
See the difference
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AfterCWS Service Pricing in Ontario
Here’s what Ontario homeowners can expect for the CWS work we handle most often:
| Service | Typical Range |
|---|---|
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
| Countertop Installation | $2,000 – $6,500 |
What drives the number is the condition of what’s underneath: the subfloor, the lateral, the supply lines. A vanity on a settled slab costs more than a vanity on a solid one because the prep work is different. Our free estimate gives you a written line-item quote before you commit to anything. Call (855) 702-1622 to schedule yours.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario 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 – CWS Construction in Ontario
Yes, when the original plumbing is still sound. But in a lot of 1960s Ontario homes east of Euclid, the cast-iron drain lines are not sound, and setting new CWS cabinets on top of a failing line just means tearing everything out again in a year. We inspect the plumbing condition before we quote and sequence the work correctly. Call (855) 702-1622 to have us take a look.
Because Ontario’s Inland Empire heat is a different animal. From June through September, temperatures routinely exceed 100°F, and a west- or south-facing kitchen wall traps that heat against the door surface until it’s well past what thermofoil is designed to handle. The adhesive film lifts, bubbles, and peels. Coastal cities rarely see sustained interior surface temps that high, so the failure mode shows up here years earlier.
Very likely, yes. Central Ontario’s original clay-surrounded cast-iron laterals are failing, and inspectors in 91761 and 91762 routinely require replacement before a room addition or ADU passes. A new bathroom added to a dying lateral won’t clear inspection. We sequence the lateral work first, then set the Upland CWS service shower, vanity, and finishes. Call (855) 702-1622 for a straight answer on your property.
We check the floor before we think about the vanity. Ontario’s clay-heavy soils move with seasonal moisture, and 1960s slabs transfer that movement straight up. If the floor is out of level, the new vanity will rock, open seams, and pop fasteners just like the old one did. We level, then set. It adds a step to the job, but it’s the only way the vanity stays right.
Often, yes. If the cabinet boxes are still square and dry, we can reface the door and drawer fronts with OEM or spec-matched replacements and rehang the hardware for a fraction of a full tear-out. But we tell you straight when a box has taken too much water or movement to be worth saving. Call (855) 702-1622 and we’ll give you the honest read.
Service Areas Near Ontario
We serve Ontario across 91758, 91761, 91762, and 91764, and we work nearby in Murrieta, Murrieta Hot Springs, Wildomar, Temecula, and Sedco Hills. If you’re in a neighboring community, see our CWS repair in Montclair or our CWS service in Fountain Valley. We cover the full Ontario service area with one coordinated crew.
Book Your CWS Service in Ontario Today
If you’ve got a CWS kitchen or bath that’s showing its age, call us at (855) 702-1622. We’ll schedule a free estimate, walk the job with you, and give you a written line-item quote. No pressure, just the straight read on what you’re working with.
Written by Gil Rourke, Owner at Pinecrest Contractors, serving Ontario and the Inland Empire.