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CGI Construction in Beverly Hills, CA | Mason Remodeling Co Los Angeles
We provide independent CGI window and door service across Beverly Hills, from Trousdale Estates to the Flats. We’re not a manufacturer-authorized dealer, and that’s the point: we answer to you, not a factory quota. Beverly Hills construction lives under a regulatory microscope, and our crews have spent nearly two decades installing and repairing CGI’s commercial-grade aluminum systems inside this city’s design-review, seismic, and noise-ordinance rules. Call (213) 632-5711 for a free estimate on any CGI window or door.
Why Beverly Hills Residents Choose Us for CGI Service
Most contractors in Los Angeles County touch a CGI window once a year. We work on them weekly. Our union-trained carpentry crews have reframed, flashed, and finished CGI windows and doors on the luxury estates of Beverly Hills, from Trousdale mid-century remodels to Golden Triangle historic restorations, as your trusted General Contractor - Beverly Hills. That means we know how CGI’s impact-rated glass and heavy aluminum frames perform when a hillside shifts six millimeters or when building code requires a specific reveal dimension on a Spanish Colonial. Isaac Pruett founded this company in 2004, and he trained in construction technology at Los Angeles Trade-Technical College before spending two decades on residential and light commercial jobs across the county. He still walks every Beverly Hills job site himself before we quote it. We carry genuine CGI replacement hardware, and our crews show up in marked uniforms with photo ID badges, so you’ll know exactly who’s at your door before they step inside.
Styles & brands we work with







Common CGI Construction Problems We Solve in Beverly Hills
Here’s what we see most often in this particular city, and why it happens here.
- Fogged dual-pane glass on south-facing Sentinel Series windows in Trousdale Estates. Constant UV exposure and the swing from dry, hot summers to wet winters saturates the desiccant inside the insulated glass unit, then the seal goes. You get permanent haze between the panes. On a Trousdale mid-century, that haze eats the view you paid millions for. We replace the glass, not the frame, whenever the frame is sound.
- Sagging rollers on original CGI Targa Series sliding doors in hillside homes. Beverly Hills hillsides move. Soil settlement shifts door frames a few millimeters, the track binds, and the rollers warp or flatten. A door that used to glide now takes two hands and a hip. We re-shim, replace the rollers with genuine CGI parts, and realign the track so the door runs clean again.
- Corroded aluminum at weep holes and sill tracks on ocean-view-facing Classic Series frames from the 1990s. Salt air and fog drip settle in the sill track, and uncoated aluminum from that era pits. We strip the corrosion, treat the track, and replace the weep covers so water still drains the way the frame was designed to drain.
- Seized multi-point locking rods on oversized Estate Collection pivot doors. These doors are heavy. When a seismic event racks the frame, or when the original installer shimmed it wrong under Beverly Hills’ no-deviation framing tolerances, the locking rods bind inside the door stile. The handle turns but the door won’t lock. We pull the hardware, free the rods, and re-shim the hinge side so the geometry works.
- Cracked or racked frames beyond repair. When an original CGI frame is cracked or racked past the point of shimming, we recommend a full unit replacement with a like-model current production window or door. Retrofitting a weakened frame means the next hillside shift breaks it again, and now you’ve paid twice.
One more thing about safety: CGI doors and windows are heavy. A large Estate Collection pivot door can weigh several hundred pounds, and the counterbalance and multi-point hardware are under real load. If a door is binding, sagging, or the lock rods are seized, don’t force it. Forced hardware shears, glass breaks, and someone gets hurt. Call us first. We’ll inspect it and tell you exactly what’s wrong before any work begins.
CGI Service in Beverly Hills: What Local Conditions Mean for Your Equipment
Here’s a fact you won’t find on a generic CGI page: Beverly Hills municipal code prohibits all exterior construction noise on Sundays and major holidays, and restricts it to 8am to 6pm Monday through Friday. Neighboring Los Angeles allows weekend work. Here, a Golden Triangle estate job must be sequenced entirely around those silent windows. That means we stage interior work, like hardware removal and frame prep, for weekends where it’s permitted, and reserve any cutting, drilling, or stucco work for weekday hours. It also means we schedule municipal inspections around the city’s quieter calendar. If a contractor quotes you a timeline that assumes weekend hammering on a Beverly Hills job, they’ve never pulled a permit here. We have. For more on how we work across this area, see our Beverly Hills service area details.
A Real Beverly Hills CGI Job, Start to Finish
Our crew spent three March days on a 1952 Spanish Colonial on North Alpine Drive in the Beverly Hills Flats replacing eight original steel casement windows with CGI Sentinel fixed and awning units. The original rough openings had been shimmed with redwood that had dry-rotted for decades from sprinkler overspray. We pulled the entire frames, reframed the reveals to suit the CGI flange system, and rebuilt the exterior stucco returns to match the home’s ornamental quoin detail. The owner’s building inspector approved the final inspection without a single correction note on our Bathroom Remodeling in Beverly Hills project. Around here, that’s almost unheard of.
CGI Models & Products We Service in Beverly Hills
We service the full CGI residential line: Sentinel Series impact windows, Estate Collection impact doors, Classic Series aluminum windows, and Targa Series impact sliding glass doors. We source genuine CGI replacement glass, rollers, and locking hardware directly from national distribution. For discontinued trim or custom mullions, we use extruded aluminum from certified West Coast fabricators matched to the same mill finish and Miami-Dade certification as the original. If a part is no longer produced, we’ll tell you that plainly, then show you the closest compliant alternative before we order anything. For broader CGI coverage outside this city, visit our CGI sales & service page.
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AfterCGI Service Pricing in Beverly Hills
Here’s what you can expect on the two most common CGI projects in Beverly Hills. These ranges reflect the extra labor and material coordination this city’s codes and design review require.
| Service | Typical Range in Beverly Hills |
|---|---|
| Impact Window Installation | $8,000 – $25,000 |
| Window Replacement | $4,500 – $15,000 |
What drives the price higher: second-story or hillside access, custom mullion fabrication, historic preservation requirements on a designated property, and stucco or quoin repair after frame replacement. What lowers it: standard replacement in a ground-floor opening with an off-the-shelf CGI current-production unit. Every estimate we write is a fixed, line-item price delivered before any work starts, and it covers permits, materials, labor, and cleanup. If the scope of work changes, we put the revised number in writing before we proceed. Call (213) 632-5711 to schedule a free estimate, and we’ll walk the property with you before quoting.
Serving Beverly Hills, CA - Our Local Coverage Area
We’re based in the Beverly Hills 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 Beverly Hills

Yes, when properly specced. CGI’s Sentinel and Estate lines carry the low-E coatings and insulated glass packages that meet California Title 24 energy requirements, and their aluminum frames come in the dark bronze and white finishes common on 1920s Mediterranean and Spanish Colonial homes in Beverly Hills. What matters more is the reveal dimensions and mullion pattern. The city’s design review board cares about sightlines, and we’ve framed enough historic-era openings here to know what passes. Call (213) 632-5711 and we’ll check your specific property’s requirements before you buy a single window.
In most cases, rollers only. If the frame is square and the glass is intact, we pull the sliding panel, replace the rollers with genuine CGI parts, clean and true the track, and reinstall. Seismic retrofit code for doors applies to the rough opening and anchoring, not the roller assembly, so a roller replacement doesn’t trigger a whole-unit upgrade. If the frame itself is racked from hillside settlement, that’s a different conversation, and we’ll show you the measurements before recommending anything. Call (213) 632-5711 for an exact assessment, and estimates are free.
We sequence all exterior-noise work, including demolition, cutting, drilling, and stucco patching, into the city’s permitted 8am to 6pm Monday through Friday window, and we do zero exterior noise work on Sundays and major holidays. On weekends, we limit the crew to interior-only work like hardware prep, finish sanding, and cleanup, which the code allows. We’ve never had a noise complaint on a Beverly Hills CGI job, and we plan every calendar day before the first truck arrives.
It depends on your policy language. Most Beverly Hills homeowners’ policies require like-kind and quality replacement, which aftermarket glass from certified fabricators satisfies when matched to the original Miami-Dade certification. But some policies specifically name genuine CGI replacement parts. We’re happy to provide the documentation your adjuster needs, including the glass certification and installation details, to support your claim either way. Call (213) 632-5711 and we’ll help you sort out the paperwork before you file.
They shim to the existing opening instead of checking the opening against the CGI flange system’s required tolerance. On a hillside, that opening has moved since the original framing went in, and if you don’t correct for the settlement before you set the window, you’re bolting a rigid aluminum frame to a surface that’s no longer square. We’ve fixed that mistake on more homes than we can count, usually because the original installer wanted to save a day. It costs more to fix than to do right the first time. Call (213) 632-5711 before you sign with anyone.
Service Areas Near Beverly Hills
We serve Beverly Hills and the surrounding area, including West Hollywood, Culver City, Venice, and parts of Los Angeles. For CGI work in the broader metro, see our CGI service in Los Angeles page, and for the San Fernando Valley side, our CGI service in Van Nuys page.
Book Your CGI Service in Beverly Hills Today

Know who’s coming, know what it costs, know it’s guaranteed. Our crews arrive in marked uniforms with photo ID badges. You’ll get a written line-item price before any work starts. And every completed job is covered by our 365-Day Done Right Promise. Call (213) 632-5711 to schedule your free estimate.
Written by Isaac Pruett, Owner at Mason Remodeling Co Los Angeles, serving Beverly Hills since 2004.











