Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
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CGI Construction in Fullerton, CA | Square One Builders
We provide independent CGI product service across Fullerton, from cabinet installation in 92832 to roofing work in 92835 and every older neighborhood between, with the same expertise available through our Anaheim CGI service. What makes our CGI work here different is simple: we understand how Fullerton’s Historic Preservation review shapes window style, roof pitch, and setbacks on visible front elevations, and we plan for it before the first permit is pulled. That local knowledge, paired with hands-on CGI product experience, means your remodel moves through the city’s process without surprises. Call (877) 688-9930 for a free estimate.

Why Fullerton Residents Choose Us for CGI Service
We’ve spent years installing and repairing CGI cabinetry, countertops, windows, and roofing in Fullerton’s pre-1960 housing stock, and that repetition builds a working knowledge no spec sheet provides. Brent Calloway grew up in the Midway City pocket off Bolsa Avenue and learned the trade through Golden West College’s Construction Technology program before spending decades on Orange County job sites. When he specs a CGI product for a Fullerton home, it’s based on how that product actually performs in a 1920s bungalow or a 1950s ranch, not on a showroom brochure.
We’re an independent firm. We are not manufacturer-authorized or affiliated with CGI, and that independence means we recommend what works for your house, not what a brand rep wants moved this quarter. We spec OEM-compatible parts for critical components and honest repair-versus-replace guidance based on the product’s age and the specific failure you’re seeing. One contractor, every system. Your remodel, fully managed.
Styles & brands we work with







Common CGI Construction Problems We Solve in Fullerton
- Cabinet box delamination in older homes with poor attic ventilation. Fullerton summers get hot, and when attic air stagnates, humidity builds. CGI Brookhaven cabinets installed before 2010 are especially prone to separating at the plywood layers under those conditions. We see it most in the tighter postwar ranch tracts where ridge vents were never added.
- Countertop seam failure over pier-and-beam foundations. Fullerton’s 1920s-40s College Park and Chapman/Commonwealth bungalows sit on foundations that flex. That deflection transfers through the cabinetry and into the countertop, splitting seams and cracking stone. We correct the substrate and level before reinstalling, or the next seam will fail the same way.
- Roof shingle blistering on south-facing slopes. Santa Ana wind events push hot, dry air across Fullerton’s Coyote Hills edges, and a south-facing CGI roof takes the brunt of that UV and heat. GAF Timberline and Owens Corning Duration shingles that weren’t ventilated properly will blister and age years early. We fix the ventilation, then the shingles.
- Window seal failure in CGI Vista series vinyl units. Fullerton’s hot summer temperature swings stress the edge seals on older vinyl windows, and once fogging starts in the glass unit, the thermal performance is gone. We source replacement sashes where available, or spec an upgraded unit that matches the opening.
- Undersized electrical panels discovered mid-remodel. A Fullerton kitchen remodel using CGI cabinets and new appliances frequently exposes a 60-amp or 100-amp panel that can’t carry the added load. The city requires the upgrade before final inspection, so we identify it early and price it honestly, no surprise change orders.
CGI Service in Fullerton: What Local Conditions Mean for Your Equipment
Fullerton’s Historic Preservation review is the quiet force shaping more CGI work here than any other single factor. In the downtown historic core and on the 1920s-40s blocks around College Park, the city can dictate window style, roof pitch, and setbacks on any visible front elevation that faces the street. That means a straightforward window replacement on a CGI-trimmed home isn’t just a swap; it’s a negotiation with the character of the house and the rules that protect it. We’ve learned to specify CGI windows and roofing that meet those guidelines while upgrading the performance underneath, because a homeowner who ignores the review process gets a stop-work order, and nobody wants that. On a 1925 Spanish Colonial cottage in the Chapman/Commonwealth corridor, we remodeled a kitchen using CGI Brookhaven cabinets and a Cambria quartz island. The original 60-amp panel had to be upgraded to handle the new appliances, and Historic Preservation required us to match the existing window style with CGI’s wood-clad units. The result was a functional kitchen that preserved the home’s character and passed every inspection. That’s the Fullerton-specific knowledge a generic CGI sales & service page simply doesn’t carry.
CGI Models & Products We Service in Fullerton
We work with the CGI product lines most commonly found in Fullerton homes. On the cabinetry side, that’s the Brookhaven and Vista series, both solid wood and plywood construction, and both prone to different failure modes as they age. For countertops, we service CGI’s granite and quartz lines, including Cambria and Silestone, with seam repair and full replacement handled in-house. CGI roofing through GAF Timberline and Owens Corning Duration systems covers most of what we install and repair across 92833 and 92834, and we stock common trim and flashing components locally to keep Fullerton turnarounds short. Windows include the vinyl and aluminum replacement lines from Milgard and Anlin. We source OEM parts for hinges, window balances, and other critical hardware whenever they’re available. For non-structural items like shelves and trim, we use aftermarket equivalents that meet or exceed original specs. We never push a replacement when a repair makes more sense for the age and condition of what you’ve got.
See the difference
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AfterCGI Service Pricing in Fullerton
Pricing reflects what we actually see across Fullerton’s older housing stock, where surprises like clay sewer laterals and undersized panels are common. A full kitchen remodel with CGI cabinetry and a Cambria countertop typically falls between $14,000 and $45,000, depending on the extent of structural work and the historic review required. Cabinet installation alone runs $4,000 to $13,000. Roof replacement with a CGI-spec GAF or Owens Corning system lands between $8,000 and $20,000, with slope, access, and ventilation work driving the spread. Every estimate is free and written, with line items you can actually read.
| Service | Price Range |
|---|---|
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Cabinet Installation | $4,000 – $13,000 |
| Roof Replacement & Installation | $8,000 – $20,000 |
Call (877) 688-9930 for an exact quote on your Fullerton home. Estimates are free.
Serving Fullerton, CA — Our Local Coverage Area
We’re based in the Fullerton area and know this community well, and we also offer a CGI service in La Habra. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CGI Construction in Fullerton
Yes, interior cabinet installation alone doesn’t trigger Historic Preservation review in Fullerton. The review applies to visible front elevations and exterior changes, so a kitchen remodel with CGI Brookhaven or Vista cabinets stays inside the scope of a standard building permit. However, if your project includes new windows, a roof change, or any exterior modification on a street-facing elevation, the Historic Preservation overlay for the downtown core and College Park will likely apply. Call (877) 688-9930 and we’ll tell you exactly what your address triggers.
Most CGI roof replacements in Fullerton run between $8,000 and $20,000. The range depends on the roof pitch, whether the existing decking is sound, whether we’re correcting ventilation issues that caused premature shingle aging, and the specific GAF or Owens Corning system you choose. Homes near the Coyote Hills edges of north Fullerton sometimes need additional fire-resistant detailing, which can push toward the higher end. Call (877) 688-9930 for a written line-item quote on your specific roof.
They hold up well when installed with proper ventilation, and poorly when they aren’t. Fullerton’s hot, dry summers stress wood cabinets through humidity swings inside the home, especially in older houses where attic ventilation was never upgraded. Brookhaven cabinets installed before 2010 are the ones we most often repair for box delamination. The fix is almost always tied to improving airflow, which is why we look at the whole house, not just the cabinet boxes.
Fullerton’s older downtown and College Park blocks still have original clay sewer laterals, and those pipes crack and root-intrude over decades. When you pull a kitchen remodel permit that moves or adds a sink line, the city may require the lateral to be inspected and possibly replaced if it’s failed. That’s a real cost that shows up mid-project if nobody planned for it. We identify the risk during our initial walkthrough and price it from the start. Call (877) 688-9930 to schedule a free estimate that accounts for what’s actually under your house.
CGI’s wood-clad windows can be specified to comply with Fullerton’s Historic Preservation guidelines, but vinyl and aluminum units may not pass review on visible front elevations in the historic core or College Park. The city cares about window style, muntin pattern, and frame material on street-facing facades, not about the brand. We spec the CGI window line that matches the character of your house, because compliance isn’t a recommendation, it’s a condition of pulling the permit.
Service Areas Near Fullerton
We serve Fullerton and the surrounding North Orange County communities. If you’re in Fullerton service area neighborhoods like College Park or the Sunny Hills side of 92835, we’re already working nearby. We also take on CGI projects in CGI service in Orange, CGI service in Costa Mesa, and the adjacent cities of Corona, La Verne, and Claremont.
Book Your CGI Service in Fullerton Today
Planning a Fullerton remodel or need Placentia CGI service or repair? We’ll walk the property, tell you what the city will require, and give you a written estimate that holds. Call (877) 688-9930 to schedule yours. Start from square one, build it right.
Written by Brent Calloway, Owner & General Contractor at Square One Builders, serving Fullerton since 2008.