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 Crestline, CA | Square One Builders
We provide independent CGI construction service across Crestline, including full kitchen remodeling, cabinet installation and refacing, and quartz or granite countertop work. The difference here is that we have spent years working on CGI products in actual CGI in San Bernardino Mountain homes, so we know how they behave under snow load, freeze-thaw cycles, and WUI fire requirements. Call (877) 688-9930 for a free estimate. We are not affiliated with or endorsed by CGI. We are a local general contractor who works with their cabinetry and countertop lines every season.

Why Crestline Residents Choose Us for CGI Service
Most Crestline homes are not suburban boxes. They are mid-century cabins, A-frames, and older owner-built structures on steep forested lots, many with deferred maintenance and add-on rooms that were never truly level. That changes how cabinetry and stone tops fail, and it changes how they need to be installed. We have pulled swollen CGI sink cabinets out of chalets off Lake Gregory Drive and re-leveled floors before reinstalling the same cabinet line with a quartz top that actually holds. Brent Calloway, our owner, grew up learning framing, concrete, and finish work the hard way, and he applies that same ground-up thinking to every CGI kitchen and bath we touch. Start from square one, build it right.
We use CGI OEM hinges, slides, and door or drawer fronts when the box is sound so the finish and fit stay consistent. When OEM is discontinued we move to quality aftermarket hardware, but we tell you before we do. That honesty is why Crestline homeowners call us instead of a flatland shop that has never seen what a mountain winter does to a particleboard cabinet core.
Styles & brands we work with







Common CGI Construction Problems We Solve in Crestline
- Swollen and delaminated cabinet boxes. Freeze-thaw cycles and interior humidity swings at 4,000+ feet cause CGI cabinet box joints and particleboard core panels to swell, especially under sink cabinets and against exterior walls with poor vapor control. We find soft backs before you see a ceiling stain.
- Loose hinges, sagging doors, and drawer rub. Thermal cycling through cold nights and warm afternoons works screws and hinges loose on CGI cabinet doors and drawers. Flatland installs rarely see this. We re-tension, re-shim, and replace worn CGI OEM hardware so doors close clean again.
- Moisture wicking behind wall cavities. Snow load and ice dams at roof penetrations and eaves can wick moisture into wall cavities behind CGI cabinetry. By the time a homeowner notices, the cabinet back is often soft or mold is starting. We repair the source and only then rebuild the cabinet run.
- Countertop seam cracks on sloped floors. Granite and quartz seams and laminate edges on CGI countertops fail when a cabinetry run is installed out of level on a settling mountain floor. The stone takes the stress and cracks at the seam. We re-level the run before setting the top.
- Refacing decisions on older cabins. Many Crestline owners want to reface rather than tear out. We will repair and reface solid CGI boxes honestly when the core is still sound. Once a box core is swollen or delaminated from moisture, replacement is the only fix that lasts, and we will say so plainly.
CGI Service in Crestline: What Local Conditions Mean for Your Equipment
Here is the part generic CGI pages miss. Crestline lots around Lake Gregory are steep, tree-dense, and reached by narrow winding roads, so getting CGI cabinet and countertop deliveries up the hill and staging them without blocking a one-lane mountain access is a scheduling problem flatland installs never face. We plan deliveries for the bottom of the drive, hand-carry boxes when the truck will not make the turn, and stage stone tops so a neighbor can still get home. That is not a detail. It is the difference between a project that finishes and one that leaves a delivery truck stuck on a switchback. On a chalet-style cabin off Lake Gregory Drive we tore out a water-swollen CGI cabinet run under a sink that had been leaking behind a wall for two winters, reframed and re-leveled the floor, and replaced the boxes with new CGI cabinets plus a quartz top seamed to handle the floor slope. We staged the delivery at the bottom of the narrow drive and hand-carried the boxes up so the truck never blocked the lane.
CGI Models & Products We Service in Crestline
We work across the CGI product lines most common in Crestline homes: standard and semi-custom kitchen cabinetry, bathroom vanities and linen cabinets, cabinet refacing doors and drawer fronts, and the CGI quartz and granite countertop programs. When a box is sound we repair and reface using CGI OEM parts to keep the finish and fit consistent. When the core is moisture-damaged or the gable has shifted, we replace with new CGI cabinetry rather than patching something that will fail again. We keep common CGI hinges, slides, and door fronts on hand for faster turnarounds in the 92325 area, and order model-specific items as needed. For broader CGI product questions, see our CGI sales & service page.
See the difference
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AfterCGI Service Pricing in Crestline
What drives the cost here is condition and access. A tight, level kitchen takes less prep than a sloped cabin floor with a water-swollen sink base. Free estimates include a site look, measurements, and a written line-item scope. No surprise change orders.
| Service | Typical Crestline Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Backsplash Installation | $800 – $2,500 |
| Kitchen Island Installation | $3,000 – $10,000 |
Refacing a sound CGI box usually lands at the lower end of cabinet work. A full tear-out with floor re-leveling and new quartz runs higher. Call (877) 688-9930 for an exact quote on your Crestline kitchen. Estimates are free.

Serving Crestline, CA — Our Local Coverage Area
We’re based in the Crestline 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 – CGI Construction in Crestline
Winter is when interior humidity climbs and exterior temperatures swing hard, so the particleboard cores in CGI cabinet boxes absorb moisture and expand, especially under sinks and against exterior walls. The fix starts with finding the moisture source, not just sanding the door. Call (877) 688-9930 and we will trace it.
Yes. We stage deliveries at the bottom of steep or narrow drives and hand-carry boxes or stone tops up when a truck cannot safely make the turn. We plan the route before delivery day so the lane stays clear.
It can. When the cabinetry run is out of level and the stone is seamed under stress, the seam is where it fails. We re-level and shim the boxes before setting the top, then seam to match the actual floor, not the original plan.
CGI cabinetry is not the layer that satisfies WUI defensible-space or ignition-resistant exterior requirements. Those rules govern the building envelope, vents, roofing, and siding. We coordinate full-scope work so interior cabinet replacement never conflicts with exterior hardening permits. For more on how we serve the mountain, see our Crestline service area page.
If the boxes are dry, square, and solid, refacing with CGI OEM doors and drawer fronts is the better value. If the core is swollen, delaminated, or mold-stained, replacement is the only fix that lasts. We will show you which one you have before you spend a dollar. Call (877) 688-9930 for a straight read on your cabinets.
Service Areas Near Crestline
We work throughout Crestline and the surrounding mountain and foothill communities. Service requests also come from Corona, La Verne, El Cerrito Corona, Montclair, Claremont, and Norco. For neighboring mountain work, see CGI service in Mentone and CGI service in Rainbow.
Book Your CGI Service in Crestline Today
Call (877) 688-9930 to schedule a free estimate for CGI cabinetry, countertop, or full kitchen work in Crestline. We will come out, look at the actual floor and walls, and give you a written scope. No pressure, no vague promises.
Written by Brent Calloway, Owner & General Contractor at Square One Builders, serving Crestline, Highland CGI service areas, and the San Bernardino Mountains.