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CGI Construction in Westchester, CA | Mason Remodeling Co Torrance
Westchester homeowners with original CGI windows, doors, or construction from the 1950s and 60s get a straight answer from us: we’re an independent construction crew in Torrance that has worked on CGI-built homes across this neighborhood for years, and we’ll tell you whether to repair or replace before you spend a dime. The one thing that makes CGI work different here comes down to LAX. Homes on the west side of Sepulveda Boulevard get direct jet blast and constant vibration that loosens window frames and roof flashing over decades, in a way you simply don’t see in Culver City or Playa Vista. If your CGI windows rattle, stick, or leak, call (424) 337-6939 for a free estimate, and we’ll come look at what’s actually happening behind the stucco.
Why Westchester Residents Choose Us for CGI Service

We’ve pulled enough original CGI aluminum frames out of Westchester homes to know what’s worth saving and what isn’t. That matters because the 1940s, 50s, and 60s housing stock here is not like newer construction. You’ve got raised foundations, original wood framing, stucco exteriors, and window systems that have been through sixty or seventy years of coastal air. Isaac Pruett, our owner, grew up in Los Angeles and studied construction technology at LA Trade-Tech before spending the better part of two decades working through every phase of residential remodeling. He reads a job site quickly and gives you a straight answer before anyone picks up a tool. When we work on CGI windows or patio doors in Westchester, we’re not learning on your house. We’ve seen this exact failure mode on streets from 83rd to Sepulveda, and we know what it takes to fix it properly.
We use genuine CGI hardware when it’s still available. We also tell you honestly when aftermarket equivalents or full replacement make more sense. No one should pay for a repair that’s going to fail again in marine air.
Styles & brands we work with







Common CGI Construction Problems We Solve in Westchester
- Galvanic corrosion where CGI aluminum frames meet original steel lintels. This is the signature problem on original 1950s and 60s Westchester homes. Two dissimilar metals touching each other in moist coastal air creates corrosion. The aluminum frame pits, the glass seal fails, and condensation forms between the panes. Some of these windows can’t be repaired safely once the frame integrity is gone.
- Seized CGI sliding patio door tracks from marine-layer grit. Westchester’s persistent marine layer leaves moisture on exterior surfaces, and that moisture traps grit in the track channels. Rollers grind down, the track corrodes, and eventually the door takes real force to move. We see this constantly in unrenovated homes where the original CGI sliding patio door systems are still in place.
- Cracked and separated CGI window caulking at stucco interfaces. The cool-moist air cycles along Westchester’s coastal side dry out exterior caulking faster than the mild climate would suggest. Once that caulking cracks, water gets behind the stucco and rots the original wood framing. On 1950s construction with older lumber, that rot spreads quickly before anyone notices.
- Broken CGI window hardware with no factory replacement available. Crank handles, sash locks, and other original CGI hardware snap or strip after decades of use. CGI no longer manufactures replacement parts for many of these older units, which means the honest fix is often an aftermarket equivalent or a full replacement window.
- Loose CGI window frames and roof flashing from LAX vibration. Homes on the west side of Sepulveda Boulevard get direct jet blast and constant vibration. Over decades, that vibration works CGI window frames loose in their rough openings and flexes roof flashing until fasteners back out. The result is rattling glass, water intrusion, and a frame that shifts every time a plane passes overhead.
CGI Service in Westchester: What Local Conditions Mean for Your Equipment
Here’s something you won’t find on a generic CGI service page. Westchester is crossed by the LAX runways in a way no neighboring city is. Homes on the west side of Sepulveda Boulevard take direct jet blast and constant vibration from every takeoff and landing. That vibration is not a one-time event. It’s a repeated mechanical stress, day after day, year after year, working against original 1950s construction. Window frames loosen in their rough openings. Roof flashing flexes until the fasteners walk out. Caulking at the stucco interface cracks under the repeated movement. Homeowners in Culver City or Playa Vista deal with normal coastal wear. Westchester homeowners deal with all of that plus structural vibration. When we inspect CGI windows or doors here, we’re not just looking at the unit itself. We’re checking how the entire assembly has responded to decades of LAX traffic.
CGI Models & Products We Service in Westchester
We service the original CGI product lines found throughout Westchester’s older homes, including the CGI 900 Series windows, CGI Estate Collection windows, CGI 500 Series windows, and CGI sliding patio door systems. When a repair is possible, we use genuine CGI hardware where it’s still available. When original CGI aluminum frames are too corroded for safe repair, we tell you straight and recommend full replacement with impact-rated units that will hold up in Westchester’s marine air and under LAX vibration. We never sell a repair that won’t last. Our CGI sales & service knowledge covers the full range of these older systems, and we stock the aftermarket equivalents that make fast turnaround possible for Westchester homeowners.
See the difference
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After
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AfterCGI Service Pricing in Westchester
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Roof Repair | $400 – $1,800 |
What drives the cost on a Westchester job is what we find behind the stucco. If the original framing around a CGI window has rotted from failed caulking, that rough opening needs new lumber before we set the new unit. If the steel header has corroded from galvanic reaction, that’s additional work. A free estimate includes all of this. We walk the job, open up what we can, and give you a written price before any work starts. Call (424) 337-6939 for an exact quote on your home.
Serving Westchester, CA - Our Local Coverage Area
We’re a General Contractor in Westchester 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 Westchester
My 1950s Westchester home still has original CGI aluminum windows. Do they need to be replaced or can they be repaired?
It depends on what’s failed. If the hardware is worn but the frame is solid and the glass seal is intact, repair may be possible using genuine CGI hardware when available or a compatible aftermarket equivalent. If the aluminum frame has pitted from galvanic corrosion where it contacts the steel lintel, or the glass seal has failed, replacement is usually the honest answer. We’ll show you what we’re seeing and give you a straight recommendation either way. Call (424) 337-6939 for a free inspection.
The CGI windows on my house shake when planes fly overhead. Is that normal for Westchester?
It’s common on the west side of Sepulveda Boulevard, but it’s not something you have to live with. Loose frames in their rough openings, worn weatherstripping, and backed-out flashing fasteners all let glass rattle under LAX vibration. We can often re-secure the unit and re-flash the perimeter to quiet it down. If the original frame is too corroded to hold fasteners anymore, replacement with impact-rated units is the better call. Call (424) 337-6939 and we’ll tell you what’s actually shaking.
Can you match the stucco around my CGI windows when you replace them on my Westchester home?
Yes. Westchester is full of original stucco exteriors, and we re-flash and match stucco returns on every window replacement we do. The goal is for the new window to look like it belongs there, not like a patch job. We use the same approach on the CGI 900 Series and Estate Collection replacements we’ve handled throughout the neighborhood.
My CGI sliding patio door is hard to open and the track looks worn. Is that a Westchester salt-air thing?
The marine layer moisture is definitely part of it. Moisture sits in the track, grit accumulates, and the rollers grind themselves down while the aluminum track corrodes. It’s a slow failure, and by the time the door is hard to move, the damage is usually done. We’ll be honest about whether a new roller and cleaned track will get you another year, or whether the door is ready for replacement. Call (424) 337-6939 for a free estimate.
Do you need a permit to replace CGI windows in Westchester, and does it affect my home’s original character?
Westchester requires permits for window replacement when the opening is being modified or structural work is involved, and we handle that paperwork as part of the job. Your home’s character is something we respect. Westchester’s original housing stock is worth preserving where it’s practical, but a corroded CGI frame that’s letting water behind the stucco isn’t character. It’s a problem. We’ll pull the permit, pass the inspection, and leave the exterior looking right.
Service Areas Near Westchester
We serve Westchester service area homes plus the surrounding communities. Our crew regularly works in Torrance, Redondo Beach, and Manhattan Beach, where similar coastal conditions and older housing stock show up again and again. For CGI work closer to the coast, see our CGI service in Redondo Beach page. If you’re further inland, we also cover CGI service in Torrance.
Book Your CGI Service in Westchester Today
If your CGI windows rattle, leak, or won’t open, call (424) 337-6939. We’ll schedule a free estimate, walk the home with you, and give you a written price before any work starts.
Written by Isaac Pruett, Owner at Mason Remodeling Co Torrance, serving Westchester since 2004.











