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Cambria Home Additions & ADU: The Tampa Owner’s Guide
If you’re planning a home addition or ADU in Tampa and want Cambria quartz countertops as part of the finished space, you’re looking at a project that typically runs $45,000 to $130,000 for the addition itself, with Cambria surfacing quoted as a separate line item based on square footage and edge profile. We see most Tampa homeowners discover they need guidance on Cambria integration when they’re mid-plan: the slab size they assumed would work doesn’t cover the island, or the edge detail they selected isn’t compatible with the cabinet profile underneath it. Elmstead Remodeling Tampa installs Cambria in additions, ADUs, garage conversions, and whole-home remodels throughout Tampa, and we’re an independent contractor, not a Cambria factory branch or warranty center. Most owners call us after realizing that “Cambria-compatible” means matching slab dimensions, fabrication tolerances, and seam placement to the structural reality of an addition, not just liking the color in a brochure.
The facts below cover what actually matters when Cambria stone meets a new addition or ADU in Tampa: which measurements drive the slab order, why Florida humidity affects the substrate under the stone, what our written price includes before a single tool comes off the truck, and how the 365-Day Done Right Promise applies to a project this size. Graham Stein, our owner, writes every scope himself, and he writes it down before we start so nobody is guessing mid-project.
Which Cambria Models This Applies To
Cambria offers over 130 design options across multiple collections, but the practical differences for an addition or ADU come down to slab format, finish, and fabrication requirements. Cambria slabs run 132 inches by 65.5 inches in the standard format, with some designs available in 132-inch by 132-inch jumbo slabs. If your Tampa addition includes an island longer than 10 feet, you’ll need a jumbo slab or a seam, and that decision needs to happen before drywall, not after cabinets are set.
The finishes matter too. Cambria’s matte finish, introduced across many designs, hides fingerprints better in a kitchen that sees family traffic, but it also shows oil differently than the high-gloss finish. For a Tampa ADU with a wet bar or an outdoor kitchen alcove, the gloss finish holds up better against humidity, while the matte reads warmer under Florida’s natural light. When we walk a Tampa addition site, we check the cabinet base for proper support. Cambria requires support for overhangs beyond 12 inches, and cantilevered breakfast bars in a sunroom addition often exceed that. The OEM-vs-aftermarket question for Cambria isn’t about the stone. The stone is the stone. It’s about the fabrication: template precision, seam color matching, and edge profile routing. We use Cambria-approved fabricators in Tampa for every slab, so the manufacturer’s warranty travels with the finished project.
You can identify your slab needs by checking the cabinet layout, not the wall. Measure the longest run of countertop, note every overhang, and mark where a sink or cooktop will sit. That three-point check tells us whether we’re quoting a standard slab or a jumbo, and whether the seam will land in a visible stretch of stone.
Styles & brands we work with
Signs Your Cambria Home Additions & ADU Is Failing
- Seam separation at the island or peninsula. Tampa’s summer humidity makes wood cabinet frames expand and contract. When the substrate moves and the stone doesn’t, the seam opens. This points to inadequate support blocking underneath, and it’s the most common failure we find in additions where the cabinet install predated the countertop template.
- Chipping at the overhang edge. An overhang beyond 12 inches without steel or corbel support flexes under weight. Cambria is hard, but pressure on an unsupported edge will chip it. In ADUs with compact kitchens, people lean on the edge more than they realize, and the damage shows up fast.
- Dull spots or etching that won’t buff out. Quartz resists staining, but acetone, paint thinner, or strong alkaline cleaners can break down the resin. We see this in Tampa additions where homeowners cleaned paint overspray from the new counters with whatever solvent was already on site.
- Wobbling or cracked cabinet substrate under the stone. If the base cabinets were installed as part of a quick conversion and not leveled before the slab went down, the stone carries stress points. A crack in Cambria almost always traces back to a cabinet that wasn’t shimmed on the Tampa slab floor.
- Water damage at the seam under a sink or cooktop. A poorly sealed seam lets water sit against the cabinet, which swells and pushes upward into the stone. In a Tampa ADU without continuous air conditioning, that cycle accelerates.
See the difference
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AfterReplacement Cost & What’s Included
For a home addition or ADU in Tampa, the full project runs $45,000 to $130,000, and within that scope, Cambria countertop installation typically lands between $2,000 and $6,500 depending on square footage, slab format, edge profile, and seam count. A standard 30-square-foot kitchen in a garage-conversion ADU often falls near the bottom of that range. A 60-square-foot island in a ground-up addition with a jumbo slab and a waterfall edge lands near the top. The stone itself typically accounts for 40 to 55 percent of the countertop line. The rest is template time, fabrication, delivery, and installation.
What’s included in our written price, every time: the template visit, the slab or jumbo selection, fabrication with edge profile, delivery to your Tampa job site, installation, seam setting, sink cutout, and haul-away of the old countertop if one exists. What’s included in the project price: shoe covers and drop cloths on every visit, quiet tools during family rest hours where possible, and a photo of the clean-up before the crew leaves. The 365-Day Done Right Promise covers the entire completed project. If something isn’t done right, we make it right. We don’t write estimates that grow after the crew arrives. The number Graham writes down is the number.
DIY or Call Us?
Cambria is not a DIY material. It’s a 2-ton slab that moves with a fabrication crane, and a dropped corner doesn’t chip politely. It takes the corner off, the cabinet, or the person underneath it. We say this plainly because we’ve seen homeowners try to “adjust” a slab with a furniture dolly. The safe checks you can do yourself: look for visible seam gaps, test the overhang for flex by pressing lightly on the edge, and check under the sink for water stains on the cabinet top. Leave everything beyond that to a crew with a template guy and a countertop rig. A fabricator who cuts on site is not a fabricator. The stone gets templated in your Tampa kitchen or addition, cut in the shop, and installed by a team that sets it level and seals every seam. If you’re mid-project and the Cambria is already part of the plan, call (850) 779-4017 and we’ll give you a written price for the countertop portion or the full addition scope. The estimate is free, and it’s the same number whether you’re pricing a 30-square-foot ADU kitchen or a full addition island wall.
FAQs
Cambria quartz is warrantied by the manufacturer for the life of the original owner against manufacturing defects, and in our experience a properly supported slab in a climate-controlled Tampa addition will outlast the cabinets under it. The failure points are seams and substrate, not the stone itself. Call (850) 779-4017 if you want an exact assessment of your setup.
Small chips can be filled by a fabricator, but a crack that traces back to cabinet movement will open again until the support underneath is corrected. We’ll tell you which situation you have during the walkthrough, and the written price covers exactly the repair or replacement your layout needs. Call (850) 779-4017 to schedule the look.
Templating takes one visit, fabrication runs 5 to 10 business days depending on the slab and edge, and installation is typically one day. The full addition or ADU project timeline depends on scope, but the countertop phase is predictable once cabinets are set. Call (850) 779-4017 and we’ll give you a written schedule along with the price.
We order directly from Cambria through their slab selection process, and we also work with KraftMaid cabinets, Silestone as a Cambria alternative, and Kohler fixtures for the surrounding scope. If you want Cambria specifically, we’ll bring the slab options to you before we write anything down. Call (850) 779-4017 and ask for Graham.
Written by Graham Stein, Owner, Elmstead Remodeling Tampa at Elmstead Remodeling Tampa, serving Tampa and nearby areas.
