Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
CGI Construction in Muscoy, CA | Timberline Contractors
We install, service, and correct CGI cabinetry, countertops, and shower systems across Muscoy’s 92405 corridor, and also provide CGI service in San Bernardino neighborhoods nearby. The honest answer from years working unincorporated San Bernardino County: most CGI work here isn’t a fresh install, it’s fixing a previous owner-builder attempt that never should have passed a county inspection. We’re the independent contractor that brings it to code and makes it last through the Cajon Pass wind season. Call (866) 253-5808 for a free estimate.
Nelson Fung runs Timberline Contractors, and he cut his teeth on exactly the kind of self-built homes that dominate Muscoy’s lot lines. We know CGI’s framed and frameless cabinet lines, their quartz and granite countertop program, and their frameless glass shower enclosures inside out. We’re not a CGI dealer. We’re not authorized by CGI. We’re the crew that shows up after the previous job failed, takes it back to studs, levels the boxes, and gets the county to sign off. Muscoy is our Muscoy service area, and we’ve seen every failure mode this valley can throw at a kitchen or bath.
Why Muscoy Residents Choose Us for CGI Service
Most contractors can hang a cabinet box. Very few have corrected CGI installs in Muscoy’s older, incrementally built stock, where floors run out of level, slabs slope, and unpermitted room conversions hide behind drywall. That’s the job. Nelson learned the trade at Los Angeles Trade-Technical College before spending years on Eastside bungalow remodels and mid-size commercial builds. He runs Timberline Contractors with a simple rule: do it right the first time or explain yourself twice. Muscoy homeowners call us because we tell them straight whether a racked cabinet carcass is worth saving or whether the particleboard swelling behind an uninsulated exterior wall means replacement.
We carry OEM CGI hinges, slides, and glass hardware, plus quality aftermarket soft-close and gasket parts for older boxes that still have life. Every estimate is itemized. Every permit question gets answered before we open a wall. That matters on a county island where the paperwork rules differ from San Bernardino city two miles away, and from our CGI repair in Rialto just to the west.
Styles & brands we work with







Common CGI Construction Problems We Solve in Muscoy
Here’s what actually goes wrong with CGI installations in Muscoy’s housing stock, and what we do about it:
- Swollen cabinet sides from exterior-wall contact. Older self-built Muscoy homes often have uninsulated exterior walls. When CGI boxes are set directly against those walls, condensation cycles in the inland valley’s hot, dry air wick moisture into the particleboard sides, and within a couple of seasons the door hinges pull and pop. We pull the boxes, add a vapor gap, and reset with proper standoffs.
- Racked doors and failed soft-close hardware on out-of-level floors. Muscoy’s older homes frequently have unpermitted flooring or patched slabs that run out of square. Cabinets installed over that twist, drawers rack, and the soft-close mechanism gives out early. We level the base first, then reset the boxes so the CGI hardware actually functions.
- Frameless glass shower seal and hinge failures from heat cycling. The triple-digit summer heat in this part of the county expands and contracts glass hardware. A frameless CGI shower enclosure installed without a properly shimmed, waterproofed curb will start leaking at the seal line within a year or two. We rebuild the curb correctly and replace the hinge hardware with OEM or better.
- Delaminated doors and drawer fronts near heat sources. A DIY install that put CGI doors too close to a poorly vented range hood or an oven will show edge delamination quickly. We re-spec the clearance and replace the affected fronts.
- Permit failures on unpermitted additions. When a CGI kitchen or bath sits inside a garage or room conversion that was never permitted, the county will not sign off on the new work until the underlying structure is brought into compliance. We handle that conversation with San Bernardino County Building & Safety directly.
CGI Service in Muscoy: What Local Conditions Mean for Your Equipment
Here’s the thing most contractors will not tell you upfront: because Muscoy is an unincorporated county island, a CGI kitchen or bath remodel here pulls a San Bernardino County building-and-safety permit, not a city permit. And on the foothill edge at the base of the Cajon Pass, that county review can also trigger WUI (wildland-urban interface) defensible-space and fire-resistant construction conditions. A job two miles into San Bernardino city proper never sees that. A homeowner off the Muscoy bench near the national forest boundary who wants new CGI cabinets and a walk-in shower may first need to address defensible-space clearance, vent screening, or fire-rated exterior details before the county will release the permit. It’s a wrinkle the big-box installers skip because they’re not the ones standing in front of the inspector. We manage it as part of the scope, not as a surprise change order.
One foothill-edge property off the Muscoy bench sticks with us. A prior owner-builder had set CGI boxes straight onto a slab that sloped nearly an inch across ten feet. Every door was racked, and the particleboard sides were swollen from years of condensation against an uninsulated wall. We pulled the boxes, furred and leveled a new sub-base with a vapor gap, reset the CGI frameless cabinets with OEM soft-close hardware, and tied the layout to a county permit that also accounted for the WUI edge before the quartz tops went down.
CGI Models & Products We Service in Muscoy
We work across the full CGI residential range: Euro-style framed and frameless kitchen cabinetry, the all-plywood box cabinets with soft-close hardware, the quartz and granite countertop program, and frameless glass shower enclosures. On the parts side, we use CGI OEM hinges, slides, and glass hardware wherever the original specification still makes sense. Where a box is worth saving but the original hardware was never great to begin with, we upgrade to quality aftermarket soft-close and gasket parts. The exception is structural: a water-swollen carcass or a frame racked beyond shimming gets replaced, because a repair that fails in eighteen months costs twice as much as doing it right. This same service extends across our broader CGI sales & service footprint.
See the difference
Before
After
Before
After
Before
AfterCGI Service Pricing in Muscoy
The cost of a CGI project in Muscoy depends mostly on what’s behind the walls. A clean kitchen remodel runs differently than one where we’re correcting unpermitted framing or leveling a sloped slab. These are the realistic ranges we quote, consistent across our service area, including CGI repair in Highland and surrounding foothill communities:
| Service | Typical Range in Muscoy |
|---|---|
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Cabinet Installation & Refacing | $4,000 – $13,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Quartz & Granite Countertops | $2,000 – $6,500 |
Every estimate is free and line-itemed. You’ll see the permit cost, the materials, the labor, and any correction work before you sign anything. Call (866) 253-5808 and we’ll walk the site with you.
Serving Muscoy, CA — Our Local Coverage Area
We’re based in the Muscoy area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help, including CGI service in Crestline up the mountain.
FAQs – CGI Construction in Muscoy
Yes. Muscoy is an unincorporated area of San Bernardino County, so permits come from San Bernardino County Building & Safety, not a city building department. We handle the permit application, inspections, and any WUI conditions the county attaches on the foothill edge. Call (866) 253-5808 if you want to know exactly what your specific street triggers.
Sometimes, but not automatically. If the kitchen or bath sits inside an unpermitted garage conversion or room addition, the county will not finalize new work until that underlying structure is brought into compliance. We have brought many of these into compliance over the years. It adds scope, but it’s the only way to get a signed-off permit and a legal remodel. Get a free consultation at (866) 253-5808.
Because the floors and slabs beneath them are out of level. Muscoy’s older self-built homes frequently have unpermitted flooring or patched concrete that runs out of square by an inch or more across ten feet. The fix is leveling the base before the boxes go in, not forcing the hardware to compensate.
Yes, if the curb is shimmed and waterproofed correctly and the glass hardware is rated for the thermal cycling. Where DIY installs skip the waterproofing on the curb, the seal fails within a year or two and hinges loosen. We rebuild the curb, re-spec the gaskets, and use OEM or better hardware so the enclosure holds through the heat season.
Often yes. On the foothill edge where Muscoy approaches the national forest boundary, the county can require defensible-space and fire-resistant construction measures before releasing a permit, even for an interior kitchen or bath remodel. We check this before quoting so you’re not surprised mid-permit. Call (866) 253-5808 for a straight answer on your property.
Service Areas Near Muscoy
We also cover CGI work in CGI service in Eastvale, CGI service in Jurupa Valley, Hesperia, Cypress, and Buena Park. If you’re on the county side of the line or in a neighboring incorporated city, the permitting changes. We handle both.
Book Your CGI Service in Muscoy Today
Call (866) 253-5808 and we’ll schedule a walkthrough of your kitchen or bath. The estimate is free, the permit path is explained upfront, and the finished job will last. Muscoy is a place we know block by block.
Written by Nelson Fung, Owner & General Contractor at Timberline Contractors, serving Muscoy and San Bernardino County’s unincorporated areas.