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Silestone Construction in West Hills, CA | Mason Remodeling Co Thousand Oaks
We provide independent Silestone construction and repair service across West Hills, from full countertop fabrication to island rebuilds and seam work, as your trusted West Hills General Contractor. We are not a factory-authorized Cosentino dealer, and we won’t pretend to be. What we bring instead is twenty years of watching how Silestone behaves inside hillside homes here, where the sun hits harder than it does down in the Valley and where the ground underneath a kitchen island does not always stay put.
Call (805) 309-3386 for a free estimate. We will give you a written price before any work starts.
Why West Hills Residents Choose Us for Silestone Service

Silestone is a quartz surface, roughly 90% crushed quartz bound with resin. It is tough, but it is not indestructible, and in West Hills it gets tested in ways a showroom in a flat part of town will never replicate. Our crew has been pulling countertops apart and putting them back together here long enough to know which failures are the stone’s fault and which ones started in the ground or the framing underneath.
Isaac Pruett, our owner, grew up in Los Angeles and learned the trade at Los Angeles Trade-Technical College before spending years on job sites across the region. He runs Mason Remodeling Co Thousand Oaks with a simple rule: tell people what something costs, show them who is coming, and back the work in writing. That is why every Silestone job we touch in West Hills starts with the same three things: a named technician with a photo ID badge, a written price, and a workmanship warranty that lasts 365 days from completion.
We keep genuine Silestone remnants in our local slab yard and stock color-matched quartz epoxy, so most repairs do not wait on a factory shipment. For anything bigger, we schedule a template and fabricate at a partner shop that handles Silestone daily.
Styles & brands we work with







Common Silestone Construction Problems We Solve in West Hills
Here are the five failures we see most often when we are called out to West Hills kitchens.
- Seam separation on long runs. Dark Silestone colors absorb more heat. On a long island or an L-shaped run that catches the western sun, the slab expands, and the epoxy seam is the first thing to let go. We see this constantly with Eternal Charcoal Soapstone. The fix is a re-seam with proper color-matched epoxy, and sometimes a seam realignment if the cabinets below have shifted.
- Chipping along overhangs and island edges. A lot of West Hills homes were built in the 1960s and 1970s on expansive soil. The cabinets settle unevenly, the slab loses support at the overhang, and a dropped pot or a heavy turkey pan chips the edge. We level the cabinet run first, then repair the edge with quartz epoxy or recommend targeted replacement if the chip is too deep.
- Dull spots and etching near south-facing windows. Hard UV exposure does not etch Silestone, but abrasive cleaners will, and once the polish is gone the surface shows every fingerprint. We re-polish with the right grit sequence and educate the homeowner on what not to use near those bright West Hills windows.
- Water wicking under undermount sinks. Original caulking fails after a few winters of rain-humidity cycling. Water seeps under the Silestone lip and darkens the joint. We pull the sink, clean the underside, re-caulk with a marine-grade sealant, and sometimes add support brackets if the sink was never properly carried.
- Cracked islands from sub-slab movement. This is the one that shocks people. The countertop cracks because the house pad under the island settled into a pocket of washed-out fill. Patching the crack without fixing the drainage is a temporary bandage. See the section below, because in West Hills this is more common than anywhere else we work.
Silestone Service in West Hills: What Local Conditions Mean for Your Countertop

South of Victory Boulevard, many of the original hillside homes in West Hills still have the drainage swales that were installed when the house was built in the 1960s or 1970s. Those swales were sized for a different era’s stormwater assumptions. Today’s winter rains hit harder, and the Santa Susana Mountain runoff adds to what those channels have to carry. When the swale is undersized, water finds the path of least resistance, and around here that path is often under a slab-on-grade addition or along the foundation edge.
Here is what that means for Silestone owners specifically. We routinely find islands and peninsulas cracked because the sub-slab fill underneath was undermined by stormwater. The crack is in the quartz, but the failure started in the ground. If we just patch the stone and walk away, the crack returns, usually two winters later. The honest repair means fixing the drainage first, re-compacting or re-supporting the cabinet run, and then addressing the Silestone. That sequence costs more than a simple patch, but it is the only version that holds.
One of our crews replaced a cracked Silestone Eternal Noir island in a custom home off Platt Avenue near Victory Boulevard. The original slab had spider cracks radiating from a seam over a dropped cabinet run. Underneath, we found the 1960s foundation pad had settled into a washed-out pocket from a failed downspout drain. We rebuilt the cabinet support, regraded the adjacent drainage with a French drain to daylight, and installed a new Silestone Eternal Calacatta Gold slab with an oversized overhang. Eighteen months later, the owner reports no movement and a seamless polish that holds up to the afternoon sun. That job is the clearest example of what “Silestone construction” actually means in West Hills: the stone and the ground under it have to be fixed together.
Silestone Models & Products We Service in West Hills
We service the full Silestone range, but the collections we work with most often in West Hills are the Eternal Collection, Sunlit Days, Le Chic, and the Loft Series. The Eternal colors, especially the darker ones, show heat-related seam stress more than lighter lines, and the Loft Series’ matte finishes need a different polishing approach than a standard polished slab.
We are an independent Silestone service provider, not a factory-authorized shop. That matters because we have no incentive to steer you toward a full replacement when a repair is the right call. We use genuine Silestone remnants from our slab yard for patches and replacements, and color-matched quartz epoxy for fills. For failed seams or severe chipping on an aged slab, we will tell you plainly when targeted replacement makes more sense than repeated patching. Our Silestone sales & service work carries the same 365-Day Done Right Promise as everything else we do.
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AfterSilestone Service Pricing in West Hills

Here are the actual numbers for the Silestone work we do most often in West Hills. These are Thousand Oaks market rates, and they hold for West Hills as well.
| Service | Price Range |
|---|---|
| Silestone countertop replacement (per sq ft installed) | $2000 – $6500 |
| Kitchen island installation with Silestone top | $3000 – $10000 |
| Seam repair and re-polish on Silestone | $400 – $1800 |
What drives the final number is the slab size, the edge profile, whether the cabinets below need leveling, and whether any drainage or structural work has to happen before the stone goes down. A free estimate from us includes all of that, in writing, before we start. Call (805) 309-3386 and we will walk the job with you.
Serving West Hills, CA - Our Local Coverage Area
We’re based in the West Hills area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – Silestone Construction in West Hills
Yes, with the right color choice and installation method. Silestone is heat-stable enough for outdoor use, but dark colors like Eternal Charcoal Soapstone will absorb more heat and expand more than light colors, which stresses seams and edges. We recommend lighter Eternal or Sunlit Days colors for south-facing outdoor counters in West Hills, and we always build in slightly wider seam gaps to allow for thermal movement. Call (805) 309-3386 for a specific recommendation based on your exposure.
In most West Hills hillside homes near Victory Boulevard, a crack along an island seam points to ground movement, not a defective slab. The original 1960s and 1970s drainage around those homes is often undersized for today’s heavier winter rains, and water undermines the compacted fill under the slab. The pad settles, the cabinets twist, and the seam cracks. We fix the drainage first, re-support the cabinet run, and then repair or replace the stone.
For a typical West Hills kitchen with 30 to 50 square feet of countertop, Bathroom Remodeling in West Hills and full Silestone replacement including fabrication and installation runs $2000 to $6500. Larger custom kitchens with islands and tall backsplashes run higher. The range depends on slab selection, edge profile, and whether cabinets need work. Call (805) 309-3386 for a written line-item quote. Estimates are free.
Usually, yes. Small to medium chips along an island edge can be filled with color-matched quartz epoxy, shaped to the original edge profile, and polished to blend. The repair is strong enough for daily use and nearly invisible on most colors. If the chip is large or the slab is already stressed from cabinet settling, we will tell you honestly whether a targeted slab replacement is the better long-term choice.
In West Hills, where buyers expect custom homes to have quality surfaces, a properly installed Silestone countertop in the kitchen is a selling point. But the value add disappears if the stone is cracked from drainage issues or if the installation looks patched. A clean, level run of Silestone with a proper overhang reads as a maintained home. That is why we fix the structure underneath before we set the stone. Call (805) 309-3386 if you are thinking through whether to repair or replace before a sale.
Service Areas Near West Hills
We serve the whole West Hills area, from the hillside streets south of Victory Boulevard to the neighborhoods near Platt Avenue and beyond. We also handle Silestone work in West Hills service area communities, plus Silestone service in Thousand Oaks, Silestone service in Calabasas, Oak Park, and Topanga.
Book Your Silestone Service in West Hills Today
Call (805) 309-3386 to schedule a free estimate for Silestone repair, replacement, or island installation in West Hills. A live person answers, we will put the price in writing, and we will show up with a name and a badge you can verify at the door. Tell me what you need done. We’ll tell you what it costs and how long it takes, then we’ll do exactly that.
Written by Isaac Pruett, Owner at Mason Remodeling Co Thousand Oaks, serving West Hills since 2004.











