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CGI Construction in Claremont, CA | Square Deal Contractors
Square Deal Contractors provides independent CGI construction service across Claremont, from stucco repairs and fiber-cement siding work to full additions and garage conversions. The one thing that makes our CGI work here different: we know how these materials behave on Claremont’s 1920s – 1960s bungalows and ranch homes, and we know what the city’s design review board expects before a single wall goes up. If you’re planning a room addition, ADU, or exterior renovation with CGI-brand materials in Claremont, call (866) 623-7205 for a free estimate. We’re not affiliated with CGI the manufacturer. We’re a full-scope contractor who works with their products daily and tells you straight what will hold up here.
Why Claremont Residents Choose Us for CGI Service
Claremont isn’t a city where you can slap up any siding profile and call it done. The tree-lined streets around the Village and the Claremont Colleges carry a historic character the city protects, and the housing stock is overwhelmingly mid-century stucco and wood-frame construction. That’s exactly the environment where CGI fiber-cement, stucco finish systems, and weather barriers get tested. Nolan Breckett, our owner, has spent three decades in residential and light commercial work across Southern California, and he’ll tell you the same thing he tells every Claremont General Contractor client: older houses reward contractors who respect the original structure. We match CGI profiles and textures where they’re still made, and we recommend quality aftermarket alternatives only when the OEM line is discontinued or the substrate makes the original spec a poor choice. One contractor, every phase. No runaround, no surprise invoices.
We’re a full general contracting firm, not a siding subcontractor. That matters when your CGI repair is actually tied to a roofline flashing issue, a failing weather barrier at the wall-to-roof transition, or an ADU tie-in that needs structural work behind the finish. We see the whole wall assembly, not just the visible surface. For more on how we handle the brand across all our projects, see our CGI sales & service page.
Styles & brands we work with
Common CGI Construction Problems We Solve in Claremont
- Hairline cracking at fiber-cement butt joints. We regularly see this on 1950s and 1960s Claremont ranch homes where CGI siding and trim went over older, uneven sheathing without proper back-priming. The joints telegraph through the paint within a few hot summers. We pull the affected boards, inspect the sheathing, and re-install with proper joint treatment and flashing so the problem doesn’t come back in three years.
- Chalking and blistering on south- and west-facing stucco walls. Claremont sits at the base of the San Gabriels, well east of the coastal marine layer. The inland sun here is punishing on exterior coating systems, especially on the 1920s bungalows near the Village. We’ve seen CGI finish coats chalk down to the base layer within a decade on unshaded walls. The fix is usually a full re-coat with the right primer, not a cheap patch job.
- Cracking stucco patches at ADU and addition tie-ins. When a new detached-garage conversion meets the original 1960s lath and framing, the different substrates move differently. If the new substrate isn’t matched to the old framing rhythm, the patch telegraphs and cracks within the first season. We see this constantly on older Claremont lots near the Colleges.
- Weather-barrier and flashing failure at wall-to-roof transitions during Santa Ana events. Wind-driven rain from the northeast hits Claremont differently than the typical winter storm, and it finds every gap in aging flashing. Properties on hillside-edge lots get the worst of it, along with dry-season smoke exposure that degrades sealant faster. We re-flash first, then assess whether the CGI weather barrier behind it is still doing its job.
- Design-review rejections on CGI material mismatches. This one’s Claremont-specific. The city’s architectural review board will flag a rear addition if the stucco texture, trim profile, or roof line doesn’t match the original house, and we’ve had clients come to us after a first submittal stalled for exactly that reason. Getting the CGI material spec right before the plans go in saves weeks of back-and-forth.
CGI Service in Claremont: What Local Conditions Mean for Your Equipment
Here’s the thing most contractors from neighboring Inland Empire cities don’t appreciate until they’re standing in front of the Claremont planning counter: this city treats remodels and additions differently than by-right tract work in Upland, Ontario, or Rancho Cucamonga. Claremont’s design review and historic-preservation scrutiny means the CGI stucco texture, trim profile, and coating color on a rear addition or garage conversion often have to match the original 1940s or 1950s house within tight tolerances. On a detached-garage conversion near the Claremont Colleges, our crew matched new stucco texture and fiber-cement trim profile to the main house precisely, so the project could clear design review and finish as a permitted ADU. A detail like that seldom comes up in neighboring cities, but in Claremont it’s the difference between a permit issued and a submittal sent back—something our CGI in Montclair clients also appreciate. Nolan Breckett’s position on it: “Know what you’re getting into before the first nail goes in.”
CGI Models & Products We Service in Claremont
We work with CGI stucco and exterior wall finish systems common on mid-century Claremont bungalows, CGI fiber-cement siding and trim profiles used on ranch-home renovations, CGI underlayment and weather-barrier products on older wood-frame remodels, and CGI exterior coating and finish systems on stucco additions. When an original CGI product line is still available, we match it profile-for-profile and texture-for-texture. When it’s discontinued or the economics don’t make sense, we discuss aftermarket options before any material gets ordered. We stock commonly needed flashing, joint treatment, and coating materials for faster Claremont turnaround, but we never substitute a part without telling you and pricing it out first. The call depends on whether the substrate and structure are sound. We’d rather patch and re-flash an aging wall than tear out a serviceable one.
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AfterCGI Service Pricing in Claremont
CGI work in Claremont is always project-specific, and the numbers below are ranges our clients see for the larger scope of work where CGI materials play a supporting role. A detached-garage conversion, for example, involves structural, electrical, and finish work far beyond the siding. A stucco repair on an unpermitted patio enclosure is a different job entirely. Here are the ranges for the three sub-services we emphasize on CGI-related projects:
| Project | Price Range |
|---|---|
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Home Addition | $45,000 – $130,000 |
What drives the cost in Claremont: design-review iterations, matching existing stucco texture and trim profiles, the condition of the original framing and sheathing, and whether the project scope triggers hillside or historic-district requirements. Every estimate we write is line-itemed and scoped in writing. Call (866) 623-7205 to schedule a free estimate, and we’ll tell you exactly what you’re getting and why.
Serving Claremont, CA — Our Local Coverage Area
We’re based in the Claremont 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 Claremont
Yes, most additions and garage conversions in Claremont go through design review, especially near the Colleges and the Village historic core, and yes, your CGI material spec matters. The city will compare stucco texture, trim profile, roof pitch, and overall massing against the original house. If your CGI fiber-cement trim is a different profile than the original or your stucco finish reads differently in the submittal drawings, expect a rewrite request. We prepare CGI material specs that match the original structure before plans go in. Call (866) 623-7205 if you’re planning an addition and want to avoid a second submittal.
In most cases we find the original installation was done over uneven sheathing without back-priming the board ends and edges. Claremont’s hot, dry summers bake the paint and cause the boards to move, and the unpainted cut ends wick moisture from the occasional winter rain. The result is predictable: hairline cracks at the butt joints, then peeling. We pull the trim, inspect what’s behind it, and re-install with proper joint treatment and flashing, which typically solves the recurrence. Call (866) 623-7205 and we’ll assess your walls before recommending full replacement.
In most cases we can match it closely, and in many cases we can match it exactly if the original texture is a standard float or dash finish. The challenge comes when the house was coated decades ago with a finish that’s no longer manufactured or has been weathered into a texture that can’t be replicated from a new bag of material. We’ve matched original CGI stucco finishes on 1940s Claremont bungalows by testing sample patches on-site and adjusting the application technique until the texture reads the same at viewing distance. The design-review board will look. We make sure there’s nothing to flag.
If your Claremont property sits on a hillside-edge lot or backs up to open space, yes. Santa Ana wind-driven rain hits from the northeast and finds every gap in flashing, and wildfire-season smoke degrades exterior sealants faster than normal exposure. We recommend upgraded wall-to-roof flashing, properly lapped weather barrier, and back-primed fiber-cement trim on any new CGI-clad addition in those zones, including our CGI service in San Antonio Heights. It’s a small material upgrade that prevents the kind of slow water intrusion that leads to costly shear-wall repair later.
No. We are an independent contractor and are not authorized, endorsed, or affiliated with CGI in any way. We work with CGI-brand materials because they’re common on the mid-century Claremont homes we renovate, and we know their failure modes and proper installation methods from years of field experience. That independence means we can tell you honestly when an aftermarket product is a better fit for your budget or structure, without a brand agreement pushing one product line.
Service Areas Near Claremont
Our CGI construction work often brings us to nearby communities with similar mid-century housing stock, including Placentia, Fullerton, Westminster, Stanton, and Lakeland Village. For projects outside Claremont, we offer the same full-scope approach. If you’re in the Inland Empire and need CGI expertise, see CGI service in Upland or CGI service in Murrieta Hot Springs. For details on our core service territory, visit our Claremont service area page.
Book Your CGI Service in Claremont Today
Whether you’re planning a detached-garage conversion, a stucco re-coat on a 1950s bungalow, or a full addition that has to clear Claremont design review, call (866) 623-7205. We’ll set up a free estimate, walk the property with you, and give you a line-itemed scope before anything gets signed. The right material for your project and your budget. From roofline to backyard.
Written by Nolan Breckett, Owner at Square Deal Contractors, serving Claremont and South Orange County.