Cambria Home Additions & ADU Nationwide

Cambria Home Additions & ADU: The Boca Raton Owner’s Guide

We stock and install Cambria-compatible surfaces for home additions and ADU projects in Boca Raton, with typical installed pricing from $45,000 to $130,000 for full additions and $90,000 to $220,000 for detached ADUs. Most Cambria slab selections are available within 48 hours through our distributor network, and we deliver a written price before any work starts. Homeowners usually discover an issue when their addition’s quartz surface shows seam separation, discoloration from UV exposure through Boca Raton’s south-facing windows, or cracking where the substrate settled differently than the main structure.

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Which Cambria Models This Applies To

Cambria’s quartz surfaces for residential additions and ADUs fall into several product lines, and matching the right slab to your existing installation matters for seam visibility and thermal expansion. The Brittanicca, Torquay, and Berwyn designs are the most common requests we see in Boca Raton’s coastal contemporary builds, though we also source from the Jewel Collection for accent walls in poolside ADUs. To identify your existing Cambria, check the underside of removable outlet covers or the cabinet deck for a small etched code, typically a 6-8 digit number that corresponds to the batch and color formula.

The OEM-versus-aftermarket question is straightforward with Cambria: there is no aftermarket quartz that matches Cambria’s exact resin-to-mineral ratio or its 25-year transferable warranty. We source through Cambria’s authorized Florida distributors, which means the slab arrives with full warranty documentation and batch-matching for seams. If your addition was built between 2010 and 2019, watch for the older “B” series designations, these slabs are slightly thinner (2 cm versus 3 cm) and require different edge-build techniques that affect your countertop height by roughly three-quarters of an inch. We verify this on every remeasure in Boca Raton because flooring transitions between old and new construction rarely account for the difference.

Signs Your Cambria Home Additions & ADU Is Failing

• Seam separation or lifting at joints. Cambria expands and contracts with temperature swings, and Boca Raton’s afternoon heat buildup in unshaded additions can stress seams installed without proper expansion gaps. The substrate beneath, often OSB in faster-built ADUs, flexes more than the quartz allows.
• Surface dulling or etching that doesn’t clean off. True Cambria is non-porous, so staining is rare; dull spots usually mean the factory polish has been compromised by improper cleaners or heat exposure above 300°F from grills or hot pans in outdoor kitchen additions.
• Hairline cracks radiating from sink or cooktop cutouts. These originate from inadequate support beneath the cutout edge, a common issue in ADU builds where cabinet framing wasn’t reinforced to Cambria’s 3-inch overhang specification.
• Discoloration near windows or sliding doors. South and west exposures in Boca Raton receive intense UV, and while Cambria resists fading better than most quartz, prolonged direct sun through low-E glass failures can shift lighter colors, particularly in the white and cream families.
• Water pooling where the surface meets the backsplash. This indicates sealant failure or, more critically, that the slab has settled away from the wall due to structural movement in the addition’s foundation, common in areas with sandy soil like western Boca Raton.

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Replacement Cost & What’s Included

For a full Cambria surface replacement in a Boca Raton home addition, expect $45,000 to $130,000 for the complete addition build including structural, mechanical, and finishes, or $2,000 to $6,500 for standalone countertop replacement within an existing addition. ADU construction with Cambria surfaces runs $90,000 to $220,000 depending on whether the unit is attached or detached, and whether you’re matching existing main-house finishes.

The range reflects three variables: slab grade (standard designs versus the Jewel Collection’s higher resin content), cutout complexity (farm sinks and induction cooktops require additional reinforcement), and access, tight ADU interiors in Boca Raton’s older neighborhoods sometimes require crane placement or panelized installation that adds labor. Our quote itemizes each line: material per square foot, fabrication, delivery, installation, and sealant. Under Clause 1 of the Haven Standard, that written price is fixed; no change proceeds without a signed change order, which is why our projects finish within a few percent of the number you agreed to. The 365-Day Done Right Promise covers the installation workmanship, and Cambria’s own warranty covers the material.

DIY or Call Us?

There’s a clear boundary here. A homeowner can safely verify the slab code, photograph the damage, and check for obvious substrate movement, these steps help us prepare an accurate quote before we arrive. What you should not attempt is removing a Cambria slab yourself. Quartz is heavy, a 3 cm slab runs roughly 20 pounds per square foot, and improper lifting risks personal injury plus damage to the cabinets below. More critically, seam repair or reinstallation requires vacuum-bonding equipment and color-matched epoxy that isn’t available retail.

We’ve seen DIY removal attempts in Boca Raton ADUs where the homeowner cracked the cabinet face frame or, worse, discovered the electrical rough-in was routed too close to the cutout edge. Our crews are background-checked and uniformed; every visit includes a documented photo record as standard. Call (754) 254-8065 to schedule your free estimate, we’ll measure, identify your Cambria code, and deliver a written price before any work starts.

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