Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why Woodland Hills Homeowners Choose CGI Construction
We provide CGI in Woodland Hills, from full-frame impact window replacements to precise repairs on older Series 950 casements. Our crews have spent years working on CGI products in the hills south of Ventura Boulevard, where stucco-over-wood framing and steep lots make installation details matter more than any spec sheet admits. Call (831) 290-6866 for a free estimate on CGI repair or replacement, and we’ll put the price in writing before any work starts.
CGI windows and doors are built in Miami for hurricane zones, which means they’re overbuilt for most of Los Angeles, and that’s exactly why they hold up here. But Woodland Hills brings its own set of problems: triple-digit summer heat that bakes west-facing seals, Santa Ana winds that test every weatherstrip, and hillside homes where wall settling slowly torques window frames out of square. We know these failure patterns because we see them on service calls every month, not because we read a national training manual.
We want to be clear up front: Mason Remodeling Co Woodland Hills is an independent CGI service provider. We are not affiliated with or authorized by CGI. What that means for you is simple: we recommend what’s right for your home, not what a manufacturer’s warranty program tells us to say. If a rebuilt sash makes more sense than a full replacement, we’ll tell you that. If the corrosion at the corner of your frame means new construction is the only honest answer, we’ll tell you that too.
Isaac Pruett, our owner, grew up in Los Angeles and trained at Los Angeles Trade-Technical College before putting in years of hands-on work across the Valley, including long stretches of projects near Warner Center and the neighborhoods surrounding it in Woodland Hills. He’s the one who sets our standard: tell you what it takes, tell you what it costs, and then get to work.
Why Trust Mason Remodeling Co Woodland Hills for Your CGI Construction?
CGI products are not forgiving of sloppy installation. The 8600 and 8300 impact lines rely on tight frame tolerances to maintain their design pressure ratings, and a flashing detail that’s wrong by half an inch can channel water into the wall cavity for years before anyone notices. Our technicians have handled enough CGI work in Woodland Hills to know the difference between a seal failure caused by age and one caused by a bad original install, and we fix both differently.
Every crew member who shows up at your door has been background-checked and identity-verified under what we call the Threshold Standard. You’ll get the technician’s name and photo before the visit, and they’ll show a photo ID badge when they arrive. No surprises at the door, no wondering who’s in your home. That matters on any job, but it matters more when the work involves removing windows from a ground-floor bedroom or working around a pool-facing wall where your kids play.
We default to genuine CGI components for anything that affects sealing or structural performance: corner keys, sash locks, fin seal weatherstripping, and insulated glass units built to the original spec. Aftermarket copies of those parts often compromise the impact rating, and we won’t install something that quietly reduces the protection you paid for. For cosmetic trim and non-structural screens, we source quality aftermarket parts that match the finish and profile, and we tell you which is which before we order anything.
Every CGI job we complete is covered by our 365-Day Done Right Promise: if the work isn’t right within a year of completion, we make it right at no cost to you. The price is written before we start, the guarantee is written before we start, and a live person answers our phone 24 hours a day, seven days a week if something comes up after the job is done.
Styles & brands we work with
Common CGI Construction Problems We Fix in Woodland Hills
- Fogging between panes on older CGI insulated glass units. This is the most common call we get in Woodland Hills, and west-facing elevations get hit hardest. Afternoon sun beats on those seals for hours in July and August, and when the desiccant inside the spacer bar is exhausted, moisture gets trapped between the panes. On Series 950 casements from the 1990s and 2000s, we often see all five or six units on one wall fail within a few years of each other. Replacing the insulated glass unit, or the full sash, restores clarity and thermal performance. Call (831) 290-6866 if you’re seeing condensation that won’t wipe off.
- Sticking or binding operators on casement and awning windows. Hillside homes south of the Boulevard sit on expansive soils and experience slow wall movement over decades. That settling, plus occasional seismic activity, pulls window frames slightly out of square. The result is a crank operator that binds halfway through its travel or an awning sash that won’t seat evenly against the weatherstripping. We rebuild the operator assembly and adjust the sash alignment rather than forcing the mechanism, which just accelerates wear and strips the gear teeth.
- Corrosion and pitting of aluminum cladding at exterior frame corners. Sprinkler overspray is the silent killer here. On pool-facing walls and anywhere lawn irrigation reaches the lower rails, we see pitting and white corrosion bloom at the corners of CGI frames. Woodland Hills water is moderately hard, and years of mineral-laden overspray will eat through the anodized finish. We clean and treat early-stage corrosion, replace corner sections when the pitting is localized, and recommend full frame replacement only when the structural integrity of the extrusion is compromised.
- Worn or brittle weatherstripping on the meeting rails of single-hung Series 700 windows. The Series 700 single-hung is a workhorse, but the fin seal and pile weatherstripping at the meeting rail degrades under UV and heat exposure. When it wears down, drafts come through the sash joint, and during Santa Ana wind events, the window rattles loud enough to wake the house. We replace the weatherstripping with OEM-profile fin seal and re-tension the sash balance, which usually solves both the draft and the rattle in one visit.
- Failed flashing and water intrusion around window and door perimeters. On stucco-over-wood-frame construction, which is most of the housing stock in Woodland Hills, the flashing details at the head and sill make the difference between a dry wall cavity and one that’s been quietly soaking up water for a decade. We see original installs where the head flashing was taped but not lapped correctly, or where the sill pan wasn’t sloped. These are the leaks that show up as peeling paint below the window or musty smells inside the stud bay. The fix is a proper re-flash with butyl-backed tape and new trim that matches the stucco reveal.
CGI Parts & Our Repair-vs-Replace Approach
Let’s be straight about parts. Genuine CGI components cost more than the aftermarket copies flooding the market, and there’s a reason. A CGI corner key is machined to exact tolerances so the frame holds its design pressure rating. A generic copy that’s off by a millimeter can create a stress point that fails at the worst possible moment. For anything that affects structural performance, sealing, or impact resistance, we install OEM parts. For cosmetic trim, screens, and non-structural hardware, we source quality aftermarket options that match the finish and save you money. We’ll always tell you which is which and what each option costs before we order a single part.
Our repair-vs-replace threshold is simple and honest. Glass seal failure can be rebuilt. Operators and hardware can be replaced. Frame corrosion that’s caught early can be treated. We recommend full replacement when the cost of rebuilding approaches 60-70% of a new unit, when the frame extrusions show structural corrosion, or when the homeowner is already planning a remodel and wants the performance of a current 8300 or 8600 impact line. We’ll walk you through the numbers either way. Call (831) 290-6866 and we’ll give you a written estimate for both options on the same visit.
Our CGI Service Process – Step by Step
- 1
Diagnosis. We start by identifying the exact failure: is it a seal, an operator, a frame issue, or a flashing problem? For glass fogging, we check the spacer bar condition and measure the unit to confirm the original glass package. For drafts, we use a smoke pen to trace air movement across the weatherstripping and sash joints.
- 2
Written price, before work starts. We explain what we found, what it takes to fix it, and what it costs. You get a written line-item quote on the spot, never a verbal estimate that grows on the final bill. This is a Threshold Group standard, not an upgrade.
- 3
Repair or installation. For glass replacement, we order the insulated glass unit to the original spec and set it in the existing sash. For full replacements, we remove the old unit, install the new frame with proper flashing and shim tolerances, and seal the perimeter to match your home’s stucco or siding profile. Every crew member is uniformed, identified by name and photo before arrival, and shows a photo ID badge at the door.
- 4
Testing. We operate every sash through its full travel, check the lock engagement, verify the seal compression, and run water tests on the exterior perimeter. If anything binds, leaks, or doesn’t seat, we fix it before we call the job done.
- 5
Written warranty. Every completed project is covered by our 365-Day Done Right Promise. If the work isn’t right within a year of completion, we come back and make it right at no cost. The terms are written on your estimate, not buried in fine print.
See the difference
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AfterCGI Products We Service & Install in Woodland Hills
Our experience covers the CGI product lines most common in Woodland Hills homes. The Series 950 casement and awning windows are the most frequent service calls we make, mostly for seal failures and operators on homes built from the 1980s through the early 2000s. The Series 700 single-hung appears on many mid-century ranch homes, and the 8300 and 8600 impact-resistant lines are increasingly specified on hilltop and canyon properties where wind exposure during Santa Ana events is severe. We service and install all of these.
We keep a stock of common CGI hardware locally: sash locks, corner keys, operators, weatherstripping profiles, and screen components. For glass units and full sash packages, we order directly to spec, typically arriving within one to two weeks depending on the factory schedule. If you need impact-rated windows for a remodel, we’ll help you choose between the 8300 and 8600 lines based on your specific elevation and exposure.
We Also Service These Brands
We’re not a single-brand shop. The same crews who rebuild CGI series 950 casements also work with KraftMaid and other cabinetry lines on kitchen remodels, Cambria, Silestone, and other countertop surfaces, and Kohler fixtures in baths and whole-home projects with our General Contractor services. When you call us for CGI service, you’re getting a team that sees the whole house, not just one window at a time. That broader view helps us catch related issues before they become separate service calls.
FAQs – CGI Construction Service in Woodland Hills
No. We are an independent CGI service provider, not a factory-authorized dealer or warranty station. That independence means we recommend what’s right for your home, not what satisfies a manufacturer program. We use genuine CGI parts where they matter and tell you exactly what we’re installing and why.
Yes, for all critical sealing and structural components: corner keys, sash locks, fin seal weatherstripping, and insulated glass units built to the original spec. Aftermarket copies of these parts can compromise the impact rating and void the manufacturer’s warranty. For cosmetic trim and non-structural screens, we offer quality aftermarket options at a lower cost and always disclose which is which.
Most hardware and weatherstripping repairs are done in a single visit, typically 1-2 hours per window. Insulated glass unit replacement takes longer because we order the glass to spec from the factory, usually one to two weeks. Full-frame window replacements depend on the product line and how many openings we’re doing; a typical 8300 or 8600 impact window install runs one to two days for full-home scope. We’ll give you a written timeline with your estimate.
We service and install the Series 950 casement and awning, Series 700 single-hung, and the 8300 and 8600 impact-resistant lines. We also repair older CGI products that predate the current naming scheme, including the 8700 series that appears on some mid-century homes in the Valley. If you have a CGI product we haven’t named here, call (831) 290-6866 and describe it. We’ll tell you honestly whether it’s worth repairing.
The CGI manufacturer’s warranty covers materials and manufacturing defects for a set period from the original purchase. If your product is still under warranty, we’ll advise you on the proper claim process with the manufacturer. For out-of-warranty products, our work is covered by our own 365-Day Done Right Promise regardless of the original warranty status. Call (831) 290-6866 and we’ll help you figure out what’s covered and what’s not.
Here are the current ranges for the CGI work we do most often in Woodland Hills:
| Service | Price Range |
|---|---|
| Impact Window Installation | $8,000 – $25,000 |
| Window Replacement | $4,500 – $15,000 |
| Roof Repair | $400 – $1,800 |
| Roof Replacement | $8,000 – $20,000 |
Exact cost depends on the number of openings, which series you choose, and what’s hiding behind the old frames once we open the wall. You’ll get a written line-item quote before any work starts. Call (831) 290-6866 to schedule a free estimate.
Yes. We regularly repair and rebuild older CGI products, including the Series 950 and 8700 that appear on homes built from the 1990s through the early 2000s. Parts availability varies by model, and we’ll tell you honestly if a particular component is no longer available and what your options are, including rebuilds with compatible hardware and glass packages.
Usually not. A Series 700 frame was not designed to carry the thickness and weight of true impact-rated laminated glass. Installing impact glass in a non-impact frame introduces stress points that can fail the corner welds and compromise the structural integrity. If you need impact protection on a Series 700, we recommend replacing the unit with a frame designed for it, and we’ll give you a written price for that without any pressure.
The 8600 series is designed to handle wind pressure and debris impact, but that doesn’t mean it’s silent. Rattle in high wind usually comes from worn weatherstripping at the meeting rail, worn or misadjusted window balances, or loose sill hardware. These are repair and adjustment issues, not defects in the glass or frame. We tighten, replace, and re-tension until the rattle is gone.
The main differences are in configuration options and styling, with the 8600 line offering more choices in custom shapes and architectural openings. Both are engineered to meet Florida wind and debris codes, which exceed anything Los Angeles hillside regulations require. For canyon and hilltop homes with strong Santa Ana exposure, either is a strong choice. We’ll help you pick based on your specific wind exposure, sun direction, and how many custom openings you have. Call (831) 290-6866 for a straight comparison.
We specialize in CGI windows and doors. For roofs, we provide full roof repair and replacement services in Woodland Hills, working with GAF, CertainTeed, and Owens Corning roofing systems. If a leak near a window or door is actually coming from a roof flashing detail above it, we’ll diagnose and fix that too, so you’re not paying for two separate service calls.
Book Your CGI Service in Woodland Hills, CA
If your CGI windows are fogging, rattling, or binding, or if you’re planning an impact replacement, call (831) 290-6866. A live person answers, 24 hours a day. We’ll get your details, schedule a free estimate, and put your price in writing before any work begins. Tell us what you need done. We’ll tell you what it takes and what it costs. Then we get to work.
Written by Isaac Pruett, Owner at Mason Remodeling Co Woodland Hills, serving Woodland Hills since 2004.
