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Cambria Home Additions & ADU: The West Palm Beach Owner’s Guide
Cambria home additions and ADU construction in West Palm Beach typically run $45,000 – $130,000 for a full addition and $90,000 – $220,000 for a detached ADU, and we’re one of the few remodelers in the area who specifies Cambria quartz by name in the written scope before the first tool is unpacked. Most homeowners reach out to us when they’ve already priced the countertops themselves, know exactly which Cambria design they want, and need a contractor who can build the room around it without shortcuts. You’ll get a written price from us before any work starts, and Graham Stein walks the job site himself before a single drop cloth goes down.
What you’re really buying with a Cambria home addition is the integration: the slab dimensions, the overhang support, the cabinet load rating underneath, and the way the quartz meets the new walls. Cambria is harder and heavier than most quartz lines (about 93% quartz by weight), which means the subbase and framing underneath it have to be spec’d differently than they would be for a laminate or a thinner natural stone. We account for that from the first framing inspection, not after the slab is already cut.
Which Cambria Models This Applies To
Every Cambria design we’ve installed in West Palm Beach homes, from the high-traffic Brittanicca and Torquay patterns to the darker Sutherland and Blackwood series, uses the same 1cm, 2cm, and 3cm slab thicknesses. The difference that matters for a home addition or ADU is the application: a 3cm slab can sit directly on cabinets without plywood underlayment, while a 2cm slab typically needs a support layer that Cambria’s fabrication specs call out by thickness and substrate type. If you’re planning an island or a breakfast bar overhang, Cambria’s published fabrication standards require specific overhang support brackets beyond a certain depth, and we build to those numbers, not to whatever the nearest supplier has on the shelf.
We’re an independent remodeling contractor in West Palm Beach, not a Cambria factory outlet, so your Cambria warranty travels with the product from the fabricator while our 365-Day Done Right Promise covers the installation and everything around it. When we quote a Cambria addition, the scope names the Cambria design, the slab thickness, the edge profile, the square footage, and the fabricator. You won’t see a line item that just says “countertop.”
Styles & brands we work with
Signs Your Cambria Home Additions & ADU Is Failing
Cambria itself doesn’t fail often. What fails around it is the work underneath or the planning that skipped a step. Here’s what we find when a West Palm Beach homeowner calls us about an addition or ADU that’s already showing problems:
- Hairline cracks radiating from a corner or sink cutout. This usually means the slab was set on a subbase that flexed, often because the framing below wasn’t stiffened for the weight of 3cm quartz. Cambria is tough, but it still needs a dead-flat, rigid surface under it.
- Overhang bounce when you lean on the island edge. Cambria’s fabrication guidelines call for brackets or corbels at specific intervals once an overhang passes a set depth. Skip the brackets and the stone will eventually stress at the cabinet line.
- Seams that open up or show daylight. In West Palm Beach humidity and temperature swings, the substrate and the quartz expand at different rates. A properly supported seam stays tight; a seam that opens means the substrate moved.
- Water staining at the backsplash-to-counter joint. This is a sealant and prep failure, not a Cambria failure. The joint was either not cleaned before caulk or the wrong caulk was used for a kitchen that sees daily cooking.
- Doors and drawers on the new cabinets binding or skewed. If the cabinet line under a Cambria top wasn’t leveled and shimmed before the slab went on, the weight settles everything unevenly. Within a season, drawers drag and doors hang crooked.
See the difference
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AfterReplacement Cost & What’s Included
For a full home addition in West Palm Beach with Cambria surfaces specified, you should budget $45,000 – $130,000. A detached ADU with a Cambria kitchen and bath runs $90,000 – $220,000 depending on square footage, site work, and utility runs. Within those ranges, the Cambria line item itself for countertops runs $2,000 – $6,500 installed, which is right in line with our broader countertop installation pricing for the West Palm Beach market.
What moves the number isn’t the quartz alone. It’s site access, existing foundation condition, whether we’re tying into the house or building a standalone structure, and what the local building department requires for setbacks and storm code. Every Elmstead quote in West Palm Beach names the Cambria slab, the cabinet line carrying it (KraftMaid and Wellborn are the two we specify most), the fixtures by brand, and the labor as separate line items. You get the written price before any work starts, and if something’s not done right after we leave, the 365-Day Done Right Promise means we come back and make it right.
DIY or Call Us?
Honest answer: most of what surrounds a Cambria addition is not a weekend project. Framing, foundation tie-ins, electrical runs, and setting 3cm quartz slabs are all work where a mistake costs more than the labor you’d save, and a dropped slab is a hospital visit waiting to happen. What you can safely do before calling us is measure your existing space, note where the plumbing stack and electrical panel sit, and pull together photos or a rough sketch. Graham will still walk the site himself, but that preparation helps the first conversation move faster.
If a Cambria top is already cracked or a seam has opened, don’t try to lift or shim it yourself. The slab weight in a full kitchen is easily several hundred pounds, and pinching or crushing injuries happen when stone shifts without proper support. Call (728) 203-3270 and we’ll assess what’s salvageable and what needs to be recut or replaced. The estimate is free, and it comes in writing.
FAQs
Cambria quartz installed on a properly prepared substrate in West Palm Beach will last 25 years or more without functional issues, and our 365-Day Done Right Promise covers the workmanship around it for the first year while Cambria’s own warranty covers the slab material itself. The limiting factor in Florida is rarely the stone; it’s whether the framing and cabinetry underneath were built to hold it. Call (728) 203-3270 and we’ll tell you what yours needs based on the actual job site, not a brochure.
Small chips can be filled by a fabricator and look nearly invisible, but a structural crack that runs through the slab thickness usually means the support underneath failed, and patching the stone won’t fix the cause. We’ll tell you honestly which one you have after inspecting the subbase in West Palm Beach, and the estimate is free.
A typical home addition with Cambria surfaces runs 8 to 16 weeks in West Palm Beach depending on permits, foundation work, and the cabinet and slab lead times. We give you a firm start and end window in the written scope before any work begins, and we call when we say we will.
We don’t warehouse Cambria slabs ourselves; we work with West Palm Beach fabricators who carry the full Cambria design line and cut to your exact template. What we do stock on the job is the supporting hardware, the brackets, the sealants, and the cabinet lines that carry the stone, so the Cambria slab is the last piece in and it fits the room we built for it. For a Cambria home addition or ADU in West Palm Beach, call (728) 203-3270 and we’ll put the price in writing before any work starts.
Written by Graham Stein, Owner, Elmstead Remodeling West Palm Beach at Elmstead Remodeling West Palm Beach, serving West Palm Beach and nearby areas.
