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CGI Construction in Mission Viejo, CA | Square One Builders
We provide independent CGI cabinet and countertop service across Mission Viejo, CA, covering everything from single-door replacement to full kitchen remodels in 92690, 92691, and 92692. What makes our CGI work here different is simple: almost every tract home in this city is HOA-governed, so we handle the architectural review submittal before we ever place a material order. That one step, done wrong, stalls a project for weeks. We get it right the first time. Call (877) 688-9930 for a free estimate on CGI cabinets, countertops, or a complete kitchen remodel.

Square One Builders is an independent construction shop, not a CGI-authorized dealer. We’ve spent years installing, fitting, and troubleshooting CGI cabinetry and countertop assemblies throughout South Orange County. You can read more about our broader CGI sales & service experience, or keep reading to see how it applies to Mission Viejo specifically.
Why Mission Viejo Residents Choose Us for CGI Service
You can talk to a salesman about CGI, or you can talk to a contractor who has built with it hundreds of times. We’re the second kind. Brent Calloway started Square One Builders after spending decades on South Orange County job sites, and he learned early that the difference between a kitchen that holds up and one that fails in five years comes down to how the cabinets were installed, not just which brand was ordered. CGI makes a solid frameless cabinet line, but the 5/8-inch particleboard boxes behave a certain way in Mission Viejo’s older tract homes, and you need someone who knows what to look for before the tear-out.
We quote and install CGI on its merits against other brands we carry, like KraftMaid for cabinetry or Cambria for countertops. Sometimes a repair beats a tear-out, and we’ll tell you that plainly. Other times the cabinet box has racked past shimming and you’re throwing good money after bad. Either way, you get a straight answer.
Styles & brands we work with







Common CGI Construction Problems We Solve in Mission Viejo
- Swollen sink base and toe-kick from slow plumbing leaks. Mission Viejo’s housing stock was largely built in the 1970s and 1980s, and that original supply-line and disposal plumbing is now 40 to 50 years old. A slow leak behind a CGI particleboard sink base goes unnoticed for months. By the time the homeowner sees the swelling, the cabinet floor is often compromised. We pull the base, assess whether the box is salvageable, and replace what needs replacing, including the plumbing that caused it.
- Sagging shelves and drawer bottoms under heavy dish stacks. The standard 5/8-inch particleboard boxes are fine when they’re sitting level. On Mission Viejo homes where the slab has settled and the original cabinet run was never re-shimmed, shelves and drawer bottoms deflect over time. We re-level the runs, shim as needed, and replace warped components with CGI OEM pieces or quality-matched equivalents.
- Soft-close slide and concealed-hinge failures. CGI’s undermount slides and concealed hinges are solid hardware, but they age. We see door-front hinge screw pull-out in the particleboard stiles on high-use cabinets, especially the pots-and-pans drawer and the sink cabinet. We install thread-repair inserts where the box is sound, and replacement hinges where it isn’t.
- Countertop seam and backsplash caulk cracking. Mission Viejo’s inland Orange County summers run hot, and winter rains bring a real moisture cycle. Quartz and granite expand and contract with temperature swings, and over time that movement cracks the caulk line where the countertop meets the backsplash. Water gets behind the cabinet run and the damage follows. We re-caulk, repair, and when the countertop has moved too much, we recommend a re-set or replacement.
- Racked cabinet frames on settled slabs. A 1979 tract home on a slab that has settled a quarter inch is common in Mission Viejo. The cabinets follow the slab, not the other way around. Doors stop aligning, drawers stick, and the whole run starts looking tired. We re-level and shim the run before touching the doors, because new doors on a racked frame is wasted money.
CGI Service in Mission Viejo: What Local Conditions Mean for Your Equipment
Mission Viejo is one of the largest master-planned communities in California, and that fact shapes every CGI job we do here. The city was mostly built out by the early 1990s as planned tracts, which means the construction work we see is overwhelmingly remodel, repair, and re-fit on 30-to-50-year-old homes. If you live in the tracts off La Paz Road or near Oso Creek, your home was likely built with original cabinetry that has outlived its hardware and is sitting on a slab that has settled since the Carter administration. CGI cabinetry works well in Mission Viejo, but only when the installer accounts for the slab, the old plumbing, and the HOA review process. That last one catches people off guard more than anything else.
Because almost every Mission Viejo tract is HOA-governed with an architectural review committee, a CGI cabinet or countertop job that changes anything visible from outside, a window over the sink, a range hood vent, an exterior door, needs a color-and-material submittal package approved before we can order. HOA sign-off, not the city permit, is often the long pole in our schedule. We prepare those submittal packages routinely.
On a 1979 tract home in the 92691 ZIP, we pulled a CGI square-edge oak kitchen where the sink base had swollen from a slow disposal leak and the cabinet boxes had racked off a settled slab. We re-leveled and shimmed the run, hung new full-overlay shaker CGI doors and drawer fronts, set an undermount sink and paired it with a quartz countertop and new backsplash. The homeowner had HOA-exterior approval squared away before we ever placed the order. That’s how the job should run.
CGI Models & Products We Service in Mission Viejo
We work with the CGI product line that’s most common in Mission Viejo homes: Euro-style full-overlay frameless cabinetry, including full-overlay slab and shaker door fronts, standard 5/8-inch particleboard-box base and wall cabinets with plywood upgrade options, and the CGI quartz and granite countertop programs paired with those cabinet lines. We also service the soft-close undermount drawer slides and concealed hinges that CGI specs. When a cabinet box is sound, we use CGI OEM replacement doors, drawer boxes, slides, and hinges. When OEM is discontinued or back-ordered, we match quality aftermarket Blum-style hardware and show you the cost gap before we order anything.
We stock common CGI replacement hardware locally for faster Mission Viejo turnaround. Doors and drawer fronts are ordered to spec, but the hinges, slides, and mounting hardware usually ship fast.

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AfterCGI Service Pricing in Mission Viejo
What you’ll pay depends on the scope. A backsplash is a different animal than a full kitchen, and we won’t quote you a number until we’ve seen the space. Below are the market ranges we work within for Mission Viejo, grounded in the jobs we’ve actually completed in South Orange County.
| Service | Typical Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Small Kitchen Remodel | $9,000 – $20,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Countertop Installation | $2,000 – $6,500 |
| Backsplash Installation | $800 – $2,500 |
| Kitchen Island Installation | $3,000 – $10,000 |
Your free estimate includes a site visit, measurements, and a written line-item quote before you commit to anything. Call (877) 688-9930 to schedule yours.
Serving Mission Viejo, CA — Our Local Coverage Area
We’re based in the Mission Viejo 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 Mission Viejo
No. Square One Builders is an independent construction shop that installs and services CGI cabinetry and countertops. We’re not manufacturer-affiliated or authorized by CGI. That independence means we’ll recommend a repair when a repair makes sense, and we’ll tell you when another brand in our portfolio fits your budget better. For more on how we source and install, see our CGI sales & service page.
A realistic CGI kitchen project in Mission Viejo runs between $14,000 and $45,000 depending on cabinet count, countertop material, and whether we’re doing a full gut or a cabinet-and-countertop refresh. A smaller kitchen or a bathroom vanity and countertop swap lands lower, in the $9,000 to $20,000 range. The HOA submittal process doesn’t add cost, but it can add time. Call (877) 688-9930 and we’ll give you an exact quote, free.
Most cabinet and countertop repairs take one to two days on site once materials arrive. Full kitchen remodels run two to six weeks depending on scope. The variable in Mission Viejo is HOA architectural review, which can add one to three weeks if the project changes anything visible from outside. We prepare submittals day one so the clock starts immediately.
We service the CGI Euro-style full-overlay frameless cabinet line, including full-overlay slab and shaker door fronts, standard 5/8-inch particleboard boxes, and plywood upgrade boxes, plus CGI quartz and granite countertop programs and the soft-close undermount slides and concealed hinges. If you have an older CGI kitchen from the 1990s or early 2000s, we can match doors and hardware where OEM is still available.
We use CGI OEM replacement doors, drawer boxes, slides, and hinges whenever the box is sound and OEM is available. When OEM is discontinued or back-ordered, we match quality aftermarket Blum-style hardware, and we show you the cost difference before ordering. If the cabinet floor has swelled or the frame is racked past shimming, we recommend replacement instead of a patch that fails in a season. Call (877) 688-9930 for an assessment.
Service Areas Near Mission Viejo
We run CGI service crews throughout South Orange County and the surrounding area. Beyond Mission Viejo, we handle jobs in our broader Mission Viejo service area, and we work regular routes into Portola Hills and Los Serranos for cabinet installs and countertop replacements. If you’re in a neighboring tract, call us and we’ll let you know our next availability.
Book Your CGI Service in Mission Viejo Today
Start from square one, build it right. We’ll come out, assess your CGI cabinets and countertops, and give you a written quote with no games. Call (877) 688-9930 and ask for Brent.
Written by Brent Calloway, Owner & General Contractor at Square One Builders, serving Mission Viejo since 1998.