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Cambria Home Additions & ADU: The Jacksonville Owner’s Guide
If you’re planning a home addition or ADU in Jacksonville with Cambria countertops specified, the installed project typically runs $45,000 – $130,000 for a full addition and $90,000 – $220,000 for a detached ADU, with Cambria surfacing representing roughly $2,000 – $6,500 of that depending on square footage and edge profile. Elmstead Remodeling Jacksonville works with Cambria quartz throughout home additions and ADU builds across Jacksonville, including kitchen and bath counters, wet bars, and laundry folding surfaces. Most homeowners call us after a smaller remodel revealed how much they need additional square footage, or when an aging parent or adult child needs a self-contained living space on the same lot.
Here’s what to know before you commit: Cambria is a quartz surface, not natural stone, which means it resists staining and never needs sealing. That matters in Jacksonville’s humidity, where natural stone can wick moisture and harbor mildew in the grout lines and edges. A home addition or ADU is a structural project first and a finish project second, and Cambria belongs in that finish phase. We treat the two separately so the numbers stay honest: the shell, the systems, and the surfaces each get their own line item.
Which Cambria Models This Applies To
Cambria manufactures quartz slabs in three series families: the Classic Series, the Coastal Series, and the Design Series, plus limited seasonal collections. For home additions and ADUs in Jacksonville, we most often install Coastal Series patterns like Torquay, Windermere, and the warmer Brittanicca tones, because they hold up visually against Florida’s bright natural light without showing every fingerprint. The Classic Series works well for laundry rooms and utility counters where the budget matters more than the pattern. The Design Series delivers the bold veining and dramatic movement that reads well on a large island, but costs more per slab and generates more waste in fabrication.
The compatibility gotcha most homeowners miss: Cambria slabs are manufactured at a standardized jumbo size, which means a large island or an L-shaped run may require two slabs with a seam. Jacksonville’s humidity causes slab expansion and contraction, so we insist on a minimum 1/8-inch expansion gap at walls and at any butt joint against cabinetry or backsplash. Skimping on that gap is the most common cause of surface cracks we see in existing installations, not the material failing itself.
Elmstead Remodeling Jacksonville is an independent remodeling contractor. We are not a Cambria affiliate or factory showroom. We specify Cambria by name because it performs well here and carries a manufacturer warranty you can verify directly.
Styles & brands we work with
Signs Your Cambria Home Additions & ADU Is Failing
A planned or existing home addition or ADU does not fail the way a single part fails, but the warning signs are concrete. Here’s what we look for when a Jacksonville homeowner says something feels wrong:
- Cracks radiating from a corner cut. Sink cutouts and inside corners create stress points. A crack running from a corner usually means the fabrication radius was too tight or the expansion gap was undersized. The fix is often a new slab, not a patch.
- Seam separation or lippage. Jacksonville’s moisture swings can cause slab movement. If you can catch a fingernail on a seam, the joint was not leveled at install or the substrate has flex. This gets worse, not better.
- Dark staining at the slab edge. Cambria is non-porous, but the adhesive used at the edge can wick moisture if the substrate behind the cabinet face was not sealed. In a humid climate, that wick becomes a mildew line.
- Undersized support causing deflection. A breakfast bar overhang longer than 12 inches without corbels or steel brackets will flex. You can feel it: a slight bounce when you lean. That flex eventually cracks the quartz.
- Foggy or cloudy surface patches. Quartz does not etch like marble, but harsh alkaline cleaners break down the resin binder over time. The surface goes dull in the scrubbed areas while the rest stays polished.
See the difference
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AfterReplacement Cost & What’s Included
In Jacksonville, Cambria countertop installation within a home addition or ADU runs $2,000 – $6,500 installed, depending on square footage, edge profile, and whether the slab is a stock Coastal pattern or a premium Design Series. The broader addition itself lands at $45,000 – $130,000, and a full detached ADU at $90,000 – $220,000. Those numbers include the shell, rough mechanicals, fixtures, and finishes, not just the countertops.
Our written price is given before any work starts on your home addition or ADU in Jacksonville. What’s included: slab material, templating, fabrication, delivery, installation, the sink cutout, and the plumbing stub-out coordination. What’s not buried: Cambria fabrication waste, which runs 15-30% on bookmatched designs, and any electrical work needed to move an outlet or add an island circuit. We name the material, name the day the slab gets templated, and name the price. Name the material, name the day, name the price – then there is nothing left to wonder about.
Every project also carries our 365-Day Done Right Promise. If the Cambria is not installed right, or the addition work is not right, we make it right.
DIY or Call Us?
You can safely inspect the slab yourself: run your hand along the seams, check the expansion gap at the walls, and look for hairline cracks at the sink corners. Those checks cost nothing and tell you a lot. What you should not do is attempt to move, re-level, or re-seam a Cambria slab. A full slab weighs 600 – 900 pounds. It takes a minimum of two installers with suction cups and a templated layout, and a dropped slab does not just crack – it can crush a foot or shear a cabinet face off.
If the issue is a failing edge profile, a separated seam, or a cracked corner cut, that is a fabrication and install problem. Call Graham Stein and the Elmstead crew at (904) 643-6243. We’ll assess the slab and give you a written price before any work starts, whether it’s a repair or a replacement.
FAQs
Cambria quartz carries a lifetime limited warranty from the manufacturer and, installed correctly with proper expansion gaps, it should outlast the cabinetry it sits on. The realistic failure point in Jacksonville is not the slab – it is the adhesive line and the substrate, which typically last 15 – 20 years before movement or moisture requires a reset.
A hairline crack at a seam can sometimes be re-adhered and tinted by a fabricator, but a crack radiating from a sink cutout or an inside corner is a structural failure in the slab. Patching it buys a year at most. Call (904) 643-6243 and we’ll tell you honestly which path applies to your slab.
Once the slab is templated, fabrication runs 5 – 10 business days, and installation is typically one day for a kitchen island or bath vanity. The full home addition or ADU timeline runs 4 – 9 months depending on scope, with the Cambria install scheduled in the final two weeks.
We do not warehouse Cambria slabs on-site. We order directly from Cambria’s distribution to the fabricator handling your project, which means you get the exact pattern and lot you selected, not whatever happens to be sitting in a warehouse. We do stock the installation materials: the adhesives, the leveling clips, and the expansion-gap shims.
For Jacksonville specifically, yes. Quartz is non-porous, which means no sealing schedule and no mildew in the surface itself, and Cambria’s warranty travels with the home if you sell. We also install KraftMaid cabinetry, Silestone quartz, and Kohler fixtures on the same projects, so you can coordinate the full finish package through one contractor and one written price.
Planning a home addition or ADU in Jacksonville with Cambria surfaces? Call (904) 643-6243 and ask for Graham Stein. We’ll talk through the layout, the slab selection, and the written price before any work starts.
Written by Graham Stein, Owner, Elmstead Remodeling Jacksonville at Elmstead Remodeling Jacksonville, serving Jacksonville and nearby areas.
