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Caesarstone Home Additions & ADU: The Fort Lauderdale Owner’s Guide
If you’re planning a home addition or ADU in Fort Lauderdale and want Caesarstone surfaces throughout, a full project typically runs $45,000 – $130,000 installed, with countertops accounting for roughly $2,000 – $6,500 of that depending on slab selection and linear footage. We install Caesarstone quartz as part of complete additions and accessory dwelling units, from kitchen counters in a new in-law suite to bathroom vanities in a detached ADU behind a Victoria Park home. Most owners don’t discover a Caesarstone problem until the surface shows a hairline crack near a sink cutout or the seam begins separating months after the original installer walked off the job. What you’re usually looking at isn’t a defective slab. It’s what happens when the substrate underneath flexes, the overhang wasn’t supported, or the wrong adhesive met South Florida humidity.
Key takeaways:
- Caesarstone additions and ADU projects in Fort Lauderdale run $45,000 – $130,000, with countertop work at $2,000 – $6,500 on top of structural and finish costs.
- We’re an independent installer, not affiliated with Caesarstone, but we source genuine slabs and match existing Caesarstone colors when you’re extending a current surface.
- Written price before work starts, written guarantee on the finished install, and a 365-Day Done Right Promise if anything fails.
Which Caesarstone Models This Applies To
Caesarstone runs several product lines, and the one you have matters when you’re adding square footage. The Classic and Supernatural collections (think 5100 Empira White, 5141 Frosty Carrina, 6131 Bianco Drift) are the most common in Fort Lauderdale kitchens and ADUs because they’re stocked regionally and priced in that $50 – $90 per square foot range before fabrication. The newer Metropolitan and Whitelight collections push higher, often $85 – $120 per square foot, and some colors carry longer lead times if the local distributor doesn’t keep them in the warehouse. Here’s the thing most owners miss: Caesarstone slabs come in two thicknesses, 2cm and 3cm. If you’re matching a kitchen island to an existing run of countertop, get your fabricator to measure the existing thickness before you buy. A 2cm slab set next to a 3cm slab looks wrong from across the room, and you can’t fix it with a thicker edge profile once it’s cut. Every Caesarstone slab also has a printed identification label on the back side with the color name, lot number, and thickness. Snap a photo of that label before the old countertop gets demoed. That one photo saves you a month of back-and-forth if you ever need a warranty claim or a matching piece cut later.
On the OEM versus aftermarket question for Caesarstone specifically: there’s no such thing as an aftermarket Caesarstone slab. It’s a brand name, like Cambria or Silestone, and you either buy genuine Caesarstone from an authorized distributor or you buy a different quartz that looks similar. We also work with KraftMaid cabinetry underneath Caesarstone tops, and we’ve matched plenty of Silestone and Cambria jobs where a homeowner wanted to shift brands mid-project. If you’re extending an existing Caesarstone surface, matching the exact color from a photo is unreliable. The lot number on that back label is the only way to get a true color match, because quartz pigments shift slightly between production runs.
Styles & brands we work with
Signs Your Caesarstone Home Additions & ADU Is Failing
- Hairline crack running from a sink or cooktop cutout. This is the classic failure point on quartz, and in Fort Lauderdale we see it most on cabinets that have settled in the sandy, shifting soil common to neighborhoods east of US-1. The countertop is rigid. The cabinet below isn’t. When the cabinet flexes, the stone absorbs the stress at its weakest point, which is always the narrow strip between the sink and the front edge.
- A seam that’s visibly separating or darkening. Seam adhesive degrades faster in Florida humidity, especially if the original installer used a polyester adhesive instead of a color-matched epoxy. Once a seam opens, water gets in, and the dark line you’re seeing isn’t dirt, it’s moisture trapped in the joint.
- An island overhang that bounces when you lean on it. Caesarstone allows a 12-inch unsupported overhang on 3cm slabs, less on 2cm. If your overhang flexes, the support brackets were either skipped or spaced too far apart. Every time that stone flexes, you’re one step closer to the crack described above.
- A dull, hazy patch that won’t polish out. Quartz doesn’t need sealing like granite, but harsh cleaners, especially anything with bleach or oven cleaner, can etch the resin binder. Once the resin is damaged, the surface looks permanently cloudy in that spot.
- Water staining around the faucet base or sink rim. This usually isn’t the Caesarstone at all. It’s the silicone joint failing between the fixture and the stone. Left alone, though, it keeps water against the slab edge, and repeated wet-dry cycles in a Fort Lauderdale kitchen can cause discoloration along the cutout.
See the difference
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AfterReplacement Cost & What’s Included
In Fort Lauderdale, replacing or extending a Caesarstone countertop during an addition or ADU project typically lands between $2,000 and $6,500, depending on how many linear feet you need, which collection you choose, and whether you’re matching an existing slab or starting fresh. A compact ADU kitchenette with 20 square feet of Classic-series Caesarstone runs closer to the bottom of that range. A full addition kitchen with an island, waterfall edge, and 60-plus square feet of Whitelight or Metropolitan sits at the top.
When we quote Caesarstone work, the written price includes the slab, fabrication, delivery, installation, sink cutout, edge profile, and the substrate underlayment, which is the plywood or cement board layer between the cabinets and the stone. If your existing substrate is water-damaged or out of level, we’ll tell you that on the first visit and write it into the number before any work starts. No change order after demo day. The finished install carries a written guarantee, and if anything fails inside the guarantee period, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it’s in writing on every project we take in Fort Lauderdale.
DIY or Call Us?
Countertop-level Caesarstone failure isn’t a DIY fix. These slabs weigh roughly 15 pounds per square foot, so a typical kitchen island top runs 150 to 400 pounds. Moving one without the right equipment damages both the stone and whoever is underneath it. What you can safely check on your own: whether cabinets show visible gaps at the floor, whether the island overhang flexes when you press down, and whether the seam has opened enough to catch a fingernail. Those three observations tell you a lot about why the surface failed, and they help us give you a straight answer over the phone.
What goes wrong with DIY on this material is predictable. A homeowner reads that quartz is “maintenance-free,” assumes it’s indestructible, and tries to cut or polish a damaged spot with tools meant for granite. Quartz melts and burns under high-speed dry cutting. The repair ends up costing more than leaving it alone. If your Caesarstone surface is showing any of the signs above, call us at (754) 551-2922 and describe what you’re seeing. We’ll tell you over the phone whether it sounds like a surface issue, a cabinet issue, or a seam issue, and what it costs to put right.
FAQs
A properly installed Caesarstone countertop should last 20-plus years, even in Florida’s humidity. The surface itself doesn’t fail with age; what fails is the installation around it. If the substrate was right and the seams were epoxied correctly, the slab will outlast the cabinets under it.
Small hairline cracks can sometimes be filled with a color-matched epoxy and sanded flush, but the repair is visible up close and it doesn’t address whatever caused the crack in the first place. For a crack running through a sink cutout or a seam that’s separated, replacement of that section is the honest answer. Call (754) 551-2922 and we’ll tell you straight which path applies to your situation.
Once the slab is selected and templated, fabrication usually takes 5 to 10 business days depending on the color’s availability. Installation takes one day for a simple kitchen, two days if there’s an island with a waterfall edge or a complex seam layout. We’ll give you a written schedule before we start, and we show up inside the window we gave you.
We don’t warehouse slabs, and for a good reason: Caesarstone colors are lot-specific, and storing a year-old slab in a humid warehouse risks color drift. We source fresh slabs from the regional distributor for every job, and we send you the exact color and lot number in writing before fabrication begins. That’s how we guarantee the surface that goes in matches the surface you chose.
If you’re planning a home addition or ADU in Fort Lauderdale and want Caesarstone done right the first time, call us at (754) 551-2922 for a free estimate. Tell me what you need, I’ll tell you what it costs, then we’ll get it done.
Written by Trevor Nash, Owner, Penhallow Remodeling Fort Lauderdale at Penhallow Remodeling Fort Lauderdale, serving Fort Lauderdale and nearby areas.
