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
CWS Construction in Ontario, CA | Alder Contractors
We provide independent CWS cabinetry and countertop service across Ontario as your trusted Ontario General Contractor, from full kitchen installations to door-skin repair and seam fixes. What sets our CWS work apart here is simple: we know how these cabinet lines hold up in Ontario’s postwar tract homes, where 2×4 framing, raised subfloors, and Inland Empire heat stress cabinets in ways a new subdivision never will. If your CWS cabinets are delaminating, sagging, or showing seam failure, call (833) 467-7020 for a free estimate. We’re not CWS-authorized, sponsored, or endorsed – we’re the crew that actually installs and repairs the stuff.
Why Ontario Residents Choose Us for CWS Service
We’ve spent years installing and specifying CWS cabinetry and countertops across Ontario’s mix of 1950s-70s tract housing and newer east-side subdivisions. That means we know which CWS box lines and door styles actually survive Inland Empire heat and daily wear – and which ones will fight you from day one. Nelson Ibarra, our owner, grew up in the Willow Avenue corridor of Rialto and spent nearly three decades working the homes and commercial buildings that define this region. He learned the trade the hard way, starting with weekend job sites alongside his father, a drywall finisher, before formal training at Chaffey College. That background shapes how we approach every CWS install in Ontario: we check the studs, we shim what’s off, and we won’t sell you a cabinet line that doesn’t fit your house.
We’re an independent CWS sales & service contractor. No factory authorization, no corporate script. That independence means we’ll tell you straight when a CWS line fits your kitchen layout and when a different brand would serve you better. It also means we source OEM CWS doors, drawers, and hinges when you want to match an existing run, and we switch to quality aftermarket soft-close hinges and full-extension slides when the OEM part is discontinued or priced badly. The goal is a kitchen that works, not a brand loyalty exercise.
Styles & brands we work with







Common CWS Construction Problems We Solve in Ontario
- Thermofoil door skins peeling on CWS Madison cabinets. Ontario summer heat cycles through west-facing kitchens, and that repeated expansion and contraction eventually separates the thermofoil skin from the MDF core. We see this most in 1950s-70s homes where original windows put afternoon sun directly on cabinet faces. It’s usually a door-skin replacement, not a full cabinet job.
- Painted MDF fronts swelling and joint-cracking during Santa Ana season. When Ontario’s dry Santa Ana winds drop indoor humidity fast, painted MDF substrates shrink. That’s when you get hairline cracks at the door-frame joints on CWS painted lines. We repair or replace those fronts and adjust the seals so they don’t keep moving.
- Particleboard box construction sagging under heavy cookware. Older CWS installs in Ontario tract homes often sag where a prior homeowner added a microwave shelf without blocking, or where cast-iron pans and stoneware sit in wall cabinets. A sagging box in a 1965 Ontario kitchen usually means new cabinets, not new hardware. We’ll price it both ways and tell you what’s actually worth doing.
- CWS quartz seam and edge-profile failures at cooktop cutouts and sink rails. When the original install skipped proper support, slab-on-grade movement in Ontario’s older homes puts those seams under constant stress. The first sign is usually a hairline crack at the cooktop corner or a lifted seam at the sink rail. We can often re-set the seam if the slab itself is sound.
- Cabinet runs pulling off the wall in older Ontario framing. Those 2×4 walls in the 91761/91762/91764 tracts were built before modern anchoring standards. We’ve pulled CWS cabinets off walls where the boxes were hanging on half the fasteners they needed. We re-block the wall, set the boxes on shimmed toe kicks, and the install holds.
CWS Service in Ontario: What Local Conditions Mean for Your Equipment
Ontario’s postwar tracts in the 91761, 91762, and 91764 ZIPs were framed with 2×4 walls and often raised wood subfloors, which means a CWS cabinet run that sits perfectly plumb in a new east-side subdivision will need shimming and a fresh toe-kick scribe in an older Ontario kitchen. The floors have settled, the studs have drifted, and no cabinet line – CWS included – was ever designed to absorb that kind of movement without some field correction. Compounding it, those narrow lots mean we’re often staging cabinets in a driveway shared with a tilt-up warehouse crew’s trucks a few blocks away. Ontario’s industrial expansion along the I-10/60 corridors means half the construction traffic in this city is warehouse shell work, and the other half is us, coaxing new cabinetry into mid-century kitchens that predate modern cabinet standards. That’s the reality of CWS service in Chino and across Ontario, and it’s why we don’t treat an Ontario install like a template job.
On a 1962 stucco tract home off Grove Avenue in the 91762 ZIP, we pulled a CWS Madison thermofoil kitchen where three door skins had peeled and two boxes had sagged off the wall studs. We re-blocked the wall, set new CWS Concord all-wood boxes on shimmed toe kicks, and topped it with a CWS quartz Carrara-look slab. The homeowner got a kitchen that handles Ontario’s August heat without the delamination cycle starting over. That’s the kind of job we do regularly, and it’s the kind most contractors won’t touch because it’s slower than a swap-out.
CWS Models & Products We Service in Ontario
We install and repair the full CWS cabinet and countertop range across Ontario. That includes the CWS Concord series all-wood cabinetry, the CWS Madison series painted MDF cabinetry, and CWS quartz countertops in Carrara-look and solid-white slabs. Door styles we work with most are the CWS Shaker and raised-panel profiles in maple and thermofoil. For repair work, we stock common OEM CWS hinge types, drawer guides, and door blanks locally so an Ontario repair doesn’t sit waiting on a factory shipment. When an OEM part no longer exists, we move to aftermarket soft-close hinges and full-extension slides that outperform the originals. We’ll always show you the part options before we order anything.
See the difference
Before
After
Before
After
Before
AfterCWS Service Pricing in Ontario
CWS work in Ontario runs the same range as most quality cabinetry and countertop projects in the Inland Empire, with a few local variables: older tract homes need more wall blocking and shimming, and narrow lots can add staging time. Here’s what we typically quote for Upland CWS service and CWS-specific work in Ontario:
| Project | Typical Price Range |
|---|---|
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Backsplash Installation | $800 – $2,500 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
Every estimate includes a site visit, measurements, and a written line-item quote so you can see exactly where the money goes. No change orders down the line, no vague allowances. Call (833) 467-7020 to schedule your free estimate for CWS work in Ontario.
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
You can usually replace just the door skins on CWS Madison thermofoil cabinets if the box itself is structurally sound. Peeling thermofoil is a face problem, not always a structure problem. But if the boxes underneath are particleboard and they’re also sagging or water-swollen, new doors on dying boxes is money wasted. We’ll assess both and price the repair against replacement honestly. Call (833) 467-7020 for a free estimate.
CWS quartz countertops handle heat reasonably well, but no quartz is rated for direct, prolonged contact with a hot pan, and west-facing Ontario kitchens catch intense afternoon sun that raises ambient temperatures and stresses seams. The slab itself won’t crack from sun exposure, but seams at cooktop cutouts can fail if the original install skipped proper support. Have us check the seam support before summer hits its peak. Call (833) 467-7020 to schedule a look.
We can match CWS Concord all-wood cabinet runs from older installs if the door profile is still available and the finish hasn’t been discontinued. Twelve years is borderline – some finishes cycle out. Our approach is to pull a door sample, check current CWS offerings, and tell you what’s matchable versus what needs a full-run replacement. Call (833) 467-7020 to have us take a look at your existing run.
Yes, ADU conversions on Ontario’s older narrow lots change how we stage and sequence the install. We often can’t park a materials trailer on-site, so we stage CWS cabinet boxes and countertop slabs in a shared driveway or narrow side yard, then move pieces inside in a specific order. It adds planning time, but not much cost if we handle the whole job from framing through finish, including any CWS repair in Montclair or nearby areas. Call (833) 467-7020 to talk through your ADU kitchen scope.
For a typical 1950s Ontario tract kitchen, a CWS cabinet and countertop refresh usually lands between $9,000 and $20,000 depending on whether you keep the existing boxes or go full replacement. Refacing existing boxes with new CWS doors and drawer fronts runs lower; swapping everything to CWS Concord all-wood boxes and adding CWS quartz pushes higher. Call (833) 467-7020 for an exact quote – estimates are free.
Service Areas Near Ontario
Beyond Ontario, we cover CWS cabinetry and countertop service in the surrounding Inland Empire communities. We run CWS installs and repairs in Bloomington, Muscoy, Fontana, Colton, San Bernardino, and Grand Terrace. If you’re in one of those areas or nearby, count yourself covered – and if you’re up the mountain, we also provide CWS service in Running Springs and CWS service in San Antonio Heights. Our full coverage area is on the Ontario service area page.
Book Your CWS Service in Ontario Today
If your CWS cabinets are delaminating, your quartz seams are failing, or you’re planning a full kitchen remodel in Ontario, let us take a look before you spend a dime. We’ll give you a straight answer, a line-item quote, and a plan that fits your house and your budget. Call (833) 467-7020 to schedule your free estimate. Do it right the first time – the callback always costs more than the extra hour up front.
Written by Nelson Ibarra, Owner at Alder Contractors, serving Ontario and the Inland Empire since the early 2000s.