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Cambria Construction in Ontario, CA | Pinecrest Contractors
We install and service Cambria quartz countertops across Ontario as an independent contractor, handling kitchen counters, islands, and backsplashes for postwar tract homes and newer builds alike. What most sets our Ontario Cambria work apart is this: we know the slabs have to sit dead flat on cabinets that have spent fifty years riding clay soil movement, and we plan every template and cure around 100°F+ Inland Empire summers. If you’re pricing a Cambria project in Ontario, call (855) 702-1622 and we’ll give you a straight read on scope before any work starts.

Why Ontario Residents Choose Us for Cambria Service
We’ve fabricated and installed Cambria quartz in hundreds of Inland Empire kitchens and baths, so slab behavior in this heat isn’t theoretical to us. We know how Cambria Torquay moves under a full sun load against a south-facing window, and we know where a seam should land so it doesn’t fight the cooktop cutout. Gil Rourke, our owner, learned this trade hands-on starting at seventeen, framing alongside his older brother before years of running full remodels across the Temecula Valley and building expertise that now supports our Upland Cambria service as well. The right material in the right place – that’s where the job starts. For Ontario homeowners, that means Cambria only goes down after we’ve checked what’s underneath it.
We’re independent. Not authorized, sponsored, or backed by Cambria, and we say so plainly. What we offer instead is manufacturer-aligned installation: Cambria-matched slab material, OEM-approved color-matched seam adhesive, and a crew that templates, cuts, and sets quartz every month, not every other year. You get one contractor accountable for the substrate, the slab, and the seam, from the roof down to the pavers if the project goes that far.
Styles & brands we work with







Common Cambria Construction Problems We Solve in Ontario
- Seam cracking at cooktop and sink cutouts. Ontario’s 1950s – 1970s tract homes east of Euclid Avenue sit on clay-heavy soil that heaves with seasonal moisture. That movement doesn’t just crack driveways; it twists old cabinet runs out of plane. When a Cambria slab goes down on boxes that were never flattened, the stress concentrates at the narrow points around cutouts and the seam pops. We re-square or shim the base before the slab lands.
- Thermal shock and edge chipping at the range and dishwasher. June through September sends interior temperatures past 100°F, then air conditioning drops them again. A thin, unrelieved Cambria overhang near a heat source gets stressed by that swing. We see chipped edges on slab noses years after install, almost always where the original fabricator skipped relief cuts or let the overhang run too far past the cabinet face.
- Failed silicone seams pulling away from backsplash tile. Santa Ana wind season shakes walls and dries the air, and that’s when we get calls about hairlines opening along the backsplash-to-counter line. The usual cause: the original remodel left no expansion gap. We cut the joint correctly and use OEM-approved color-matched adhesive so the seam can move without failing.
- Discolored or lifting edges around undermount sinks. Ontario’s original cast-iron drain lines are failing everywhere, and when a plumber re-runs pipe under a cabinet without a dry-fit check, moisture can trap under the Cambria apron. We’ve pulled apart enough of these to know the fix starts underneath, not on top of the stone.
- Etching and dulling. Rare on Cambria quartz itself, but failed 100%-silicone seams that pull away from tile read as discoloration to most homeowners. If the quartz is sound, we repair the seam rather than rip out a full top. Replacement only when a crack runs through a cutout or the run is too short to re-seam cleanly.
Cambria Service in Ontario: What Local Conditions Mean for Your Equipment
The single biggest difference between a Cambria install in Ontario and Cambria service in Chino or other neighboring cities is what’s under the slab. Central Ontario, the 91761 and 91762 ZIPs, was built out fast in the 1960s and early 1970s. The original sewer laterals are cast iron, they’re past their service life, and the city’s clay soil shifts enough to crack them. Where it bites a Cambria project is at inspection: Ontario inspectors routinely require lateral replacement before they’ll sign off on a kitchen or bath remodel tied to failing plumbing. That means in central Ontario, most Cambria jobs now start with a sewer scope and often a lateral replacement before we can even template. We coordinate that repair first, re-square the base cabinets, and then the slab goes down. It adds a step, but it’s the step that keeps a quartz top sitting true five years later. On a tract home off Euclid Avenue in 91762, we templated a Cambria Torquay island for a partial remodel only to find the original cast-iron drain under the sink collapsing. We pulled the permit path together, rerouted the lateral, re-squared the boxes, and then scheduled a dawn concrete pour so the substrate could cure before the heat hit. Color-matched seams, dead-flat base, and a quartz top that hasn’t moved since.
Cambria Models & Products We Service in Ontario
We work across the Cambria line most common in Inland Empire kitchens: Torquay, Ella, Britannica, and Berwyn all show up regularly in our Ontario projects. Torquay remains the workhorse for bright kitchens; Ella reads warmer and hides more, which suits a 1970s Ontario stucco home with original oak trim. Our parts approach is simple: Cambria-matched slab material and OEM-approved color-matched seam adhesive for every install, plus quality aftermarket clips and sink supports where they outperform stock hardware. We keep matching seam material on hand for the models we install most, so an Ontario repair call — or a Cambria repair in Montclair — doesn’t wait on a regional distributor to ship. If a seam fails and the slab is sound, we repair rather than replace. You pay for the fix, not a demolition.
See the difference
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AfterCambria Service Pricing in Ontario
What you’ll spend on a Cambria job in Ontario depends first on substrate work, not slab choice. A house on a raised foundation with rotten cabinet boxes under the old counter will cost more than a slab-on-grade home with level boxes. Here’s where our Ontario pricing typically lands:
| Service | Price Range |
|---|---|
| Countertop Installation | $2,000 – $6,500 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Kitchen Island Installation | $3,000 – $10,000 |
| Backsplash Installation | $800 – $2,500 |
Every estimate includes a substrate check, a sewer scope recommendation where the age of the home calls for it, and a written line-item breakdown so you see exactly what you’re paying for. Call (855) 702-1622 for a free estimate and we’ll walk the job with you.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario area and know this community well, with Rancho Cucamonga Cambria service also within our regular coverage. Use the map below to see our full service area — if you’re nearby, we can almost certainly help.
FAQs – Cambria Construction in Ontario
No. We’re an independent general contractor that buys through Cambria fabricator channels and installs to the brand’s material spec. We’re not affiliated with or endorsed by Cambria, and we’d rather be upfront about that than trade on a badge we don’t have. What we bring is hundreds of Inland Empire installs and a crew that knows how the slabs behave in Ontario’s heat.
Yes, and in central Ontario that’s the sequence we’d push for anyway. We coordinate the lateral replacement with the plumbing scope, then template only after the cabinet bases are re-squared and the substrate reads flat. That ordering keeps the slab from getting cut to boxes that still need to move. Call (855) 702-1622 and we’ll map the sequence before you commit to anything.
We use Cambria-matched slab material and OEM-approved color-matched seam adhesive on every install and repair. For sink clips and supports, we’ll use quality aftermarket hardware where it outperforms the stock pieces. The goal is a seam and an edge that hold, not a parts list that looks good in an invoice.
Most straightforward kitchen counter installs run one to two days on site after template, with template to install typically two to three weeks depending on slab availability. In Ontario summers we schedule pours and cuts in the early morning because by 10 a.m. the mix is setting faster than it can be finished, which is a scheduling reality we plan around. City permitting for a lateral replacement adds its own timeline if the scope calls for it.
Slab pricing depends on the Cambria model and the square footage. In our Ontario projects, countertop installation lands between $2,000 and $6,500 all-in, and a small kitchen remodel with Cambria and backslash typically runs $9,000 to $20,000. The exact number comes down to how much prep the substrate needs. Call (855) 702-1622 for a free estimate with a written line-item breakdown.
We handle Cambria work across Pinecrest Contractors’ full range: Cambria sales & service information is here for the brand-specific approach we take, and our Ontario service area page covers the city’s neighborhoods and ZIP codes in more detail.
Service Areas Near Ontario
Beyond Ontario, we run Cambria installs and repairs for kitchens and baths across the Inland Empire corridor. Homeowners in Cambria service in Placentia and Cambria service in Fountain Valley often face the same clay-soil substrate and heat-cure scheduling issues we manage in Ontario. We also take on Cambria work in Rancho Cucamonga, Upland, and Chino, where the housing stock and plumbing age run parallel to Ontario’s.
Book Your Cambria Service in Ontario Today
If your Ontario kitchen is ready for Cambria, call (855) 702-1622 to schedule a free estimate. We’ll walk the site, check the substrate, and give you a written price that covers what’s actually there, not a guess. One contractor, every system.
Written by Gil Rourke, Owner at Pinecrest Contractors, serving Ontario and the surrounding cities since the early 2000s.