An open living room and dining area after a whole-home remodel
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CWS · Ontario, CA

CWS Construction in Ontario, CA

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A remodeled staircase with wood treads and a slim metal railing
A finished basement family room with a media wall and wet bar
A remodeled laundry and mudroom with a bench, cubbies and painted cabinets
A built-in window seat in a bay window
A dining nook with a built-in banquette
A single-story rear room addition with tall windows and a new patio
An open kitchen and dining area after a remodel
A freestanding soaking tub in a remodeled primary bathroom
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CWS Construction in Ontario, CA | Mason Remodeling

We provide independent CWS service across Ontario, from cabinet refacing in older track homes to full standing seam metal roof replacements, as well as Ontario Bathroom Remodeling. What separates our CWS work here from a generic contractor’s is that we know how Ontario’s inland heat and dry air punish these specific products. If you’re dealing with swollen cabinet boxes, countertop seam separation, or a metal roof that pops and groans every afternoon, call (803) 680-2547 and we’ll give you a straight answer on what it takes to fix it.

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Why Ontario Residents Choose Us for CWS Service

A remodeled living room with built-in shelves around the fireplace

We’ve spent years working on CWS cabinetry, countertops, and metal roofing across Ontario, and we’ve seen the same failure modes repeat themselves on the same streets. Seasonal expansion loosens cabinet box joints. Unshaded west-facing windows bake quartz countertop seams until they separate. Metal roof fasteners back out from daily thermal cycling. Most contractors treat these as generic problems. We treat them as CWS-specific ones, because the fix differs depending on the product line, the year it was installed, and which part of Ontario you live in.

Isaac Pruett, our owner, grew up watching his dad do finish carpentry and spent two decades remodeling homes across Southern California before Mason Remodeling made CWS work a focus. He still walks every Ontario jobsite himself before we call the job done. You can read more about the way we operate on our CWS sales & service page. And if you’re wondering whether we’re authorized by CWS directly, the honest answer is no. We’re an independent service provider. That independence means we stock OEM-compatible parts and also know which aftermarket components actually hold up for discontinued lines, with trade-offs explained in plain language before you spend a dollar.

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Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

Common CWS Construction Problems We Solve in Ontario

  • Cabinet box joints loosening and door misalignment. Ontario summers routinely cross 100°F, and winters dip into the 40s overnight. That swing makes wood expand and contract, and CWS cabinet boxes, especially the semi-custom wood lines, feel it at every glued joint. Doors start rubbing, hinges sag, and what looked square a year ago now gaps at the corner. We re-square, re-glue, and swap in CWS-compatible hinge plates where the original geometry failed.
  • Particleboard and MDF cabinet bases swelling from under-sink leaks. Older Ontario homes, particularly 1970s and 1980s builds, often lack the bath and kitchen ventilation newer houses have. A slow under-sink leak saturates the cabinet base before you ever see water on the floor. The MDF crumbles, the sink starts dipping, and the doors won’t close. We cut out the damaged section, replace it with a sealed material, and set the sink back level.
  • Quartz and granite countertop seam separation and edge chipping. Direct sunlight through unshaded windows causes thermal movement that pulls seams apart and leaves edges brittle. In Ontario homes with big south or west-facing kitchen windows, we see this constantly. We re-bond seams with color-matched adhesive and repair chips with a filled, polished patch that blends into the surrounding stone.
  • Metal roof fastener back-out and panel expansion noise. Ontario’s inland heat cycles a standing seam panel through daily expansion and contraction. Fasteners with standard washers loosen, then leak at the penetration points. The roof also groans and pops as panels slide against the clips. We re-torque or replace fasteners with oversized neoprene washers and reset floating clips where panels have drifted.
  • RTA cabinet component failure after years of use. CWS Ready-to-Assemble cabinets are built from flat-packed components with cam locks and dowels. After years of loading and unloading, cam locks strip and shelf pins wallow out. We rebuild the boxes with stronger hardware or reface the whole run if the boxes are salvageable.

CWS Service in Ontario: What Local Conditions Mean for Your Equipment

A whole-home remodel with the living, dining and kitchen areas opened up

Ontario’s inland location means summer temperatures regularly exceed 100°F, and that heat does something specific to CWS standing seam metal roofing: a 20-foot panel expands and contracts up to a quarter inch every day. Installers who learned their trade on the coast often set fasteners with standard washers, which lose their seal as the panel moves. The result is leaks at fastener points that show up as water stains on ceilings months after installation. We set every CWS metal roof fastener with oversized neoprene washers that compress and rebound with the thermal movement. It’s a small detail that coastal crews overlook and Ontario homeowners pay for later.

Drive through neighborhoods like Los Olivos, just south of the airport, and you’ll see CWS metal roofs from the last decade showing uneven panel lines where expansion has shifted the floating clips - a different story from what we see providing Rancho Cucamonga Cws service. Down near Cypress Avenue and Vineyard Avenue, we’ve re-torqued more fasteners on these roofs than we can count. The fix isn’t complicated, but it has to be done by someone who understands the panel system, not a roofer who treats every metal roof like a pole barn.

CWS Models & Products We Service in Ontario

We work on the full CWS catalog that shows up in Ontario homes, including the Ready-to-Assemble kitchen cabinet line, the Semi-Custom Wood Cabinets, and CWS Quartz and Granite Countertops. On the exterior, we service and repair CWS standing seam metal roofing panels. For cabinet refacing and repairs, we use OEM CWS hardware and panels when they’re still available to match your existing finish and keep structural integrity. When a line has been discontinued, we source quality aftermarket components and tell you exactly what the difference means before we install them. If repair costs exceed 50% of replacement, we’ll say so plainly and recommend a full replacement instead of patching something that will fail again in two years.

Before & after

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Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

CWS Service Pricing in Ontario

A remodeled family room with new windows and a window seat

Here’s what CWS work typically costs in Ontario, based on the jobs we’ve completed across the city, including work as a General Contractor in Ontario:

Service Typical Range
Cabinet Installation & Refacing $4,000 – $13,000
Quartz & Granite Countertops $2,000 – $6,500
Standing Seam Metal Roof $15,000 – $40,000

Your actual price depends on cabinet count, countertop square footage, and roof panel condition. Every estimate we give is written, line-itemed, and fixed before any work starts. No verbal quote that balloons later. Call (803) 680-2547 to schedule a free estimate in Ontario, and we’ll walk the job with you and price it accurately.

Serving Ontario, CA - Our Local Coverage Area

We’re based in the Ontario 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 – CWS Construction in Ontario

Service Areas Near Ontario

We serve Ontario and the surrounding communities across the Inland Empire and into Los Angeles County. If you’re in Los Angeles, Sacramento, Fresno, San Jose, or San Francisco, we can help. We also maintain dedicated CWS service coverage for CWS service in Elk Grove and CWS service in Santa Rosa for our Northern California clients, and our Ontario service area page covers the full local footprint.

Book Your CWS Service in Ontario Today

We recently refaced a 1990s CWS oak kitchen off Los Olivos Drive near Ontario International Airport, where cabinet doors had swollen from years of heat and cooking moisture. Our team replaced the hinge plates with CWS-compatible soft-close hardware and installed new quartz countertops with a matching backsplash, wrapping the job ahead of schedule even with a last-minute island addition. Know who’s coming, know what it costs, know it’s backed up. Everything else is just noise. Call (803) 680-2547 for your free Ontario estimate.

Written by Isaac Pruett, Owner at Mason Remodeling, serving Ontario since 2004.

Ideas for every room in the house

Built-ins, window seats, family rooms and staircases: the changes that make a whole house work better.

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A home office with a built-in desk and shelvesAn open living space after a whole-home remodelA remodeled primary suite with built-in wardrobes and a window seatA remodeled hall bathroom with subway tile and a floating vanityA garage converted into a guest room and home officeNew painted shaker cabinets with an organized deep drawer

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