







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 independent CGI in Woodland Hills construction repair and service, specializing in impact window installation, window replacement, and the failure modes that valley heat and hillside sun actually cause. CGI builds impact-rated windows and patio doors engineered for hurricane zones, and Woodland Hills homes put them through a different kind of test: relentless San Fernando Valley heat that bakes seals, warps tracks, and pits aluminum cladding over time. We know these products from years of pulling them apart, not from a factory manual, and we’re independent, not authorized by CGI, which means our advice goes straight to what’s actually wrong and what’s worth fixing.
Call (341) 217-2776 for a free estimate on any CGI window, door, or related repair in Woodland Hills.
Why Trust Sawyer Remodel Woodland Hills for Your CGI Construction?

Luca Romano grew up in Los Angeles, trained at LA Trade-Technical College, and has spent nearly two decades on job sites across the West Valley, from Warner Center to the hillside streets above Topanga Canyon Boulevard. He’s pulled CGI Sentinel Series and Estate Collection units out of 1960s ranch homes and 1980s custom builds alike, and he knows what these frames do after ten or twenty summers in Woodland Hills heat. The work tells you everything. We just make sure it tells the right story.
Our techs don’t just swap glass. They know CGI’s frame extrusions, balance spring tolerances, and the way impact-rated laminated glass behaves when the interlayer starts to delaminate at the edges. We use OEM CGI parts whenever they’re available because impact ratings depend on exact tolerances. When OEM isn’t an option on a discontinued model, we source hardened aftermarket components that match the original specs, not whatever’s cheapest at the supply house. Every job comes with The Relay Visibility Guarantee: a written price before work starts, live arrival time tracking, and photo updates before and after. Plus the 365-Day Done Right Promise, in writing, on every project.
Styles & brands we work with







Common CGI Construction Problems We Fix in Woodland Hills
- Fogging between panes in older CGI insulated glass units. We see this constantly on west-facing walls in Woodland Hills, where afternoon sun beats on the glass for hours. The edge seals fail, moisture gets pulled between the panes, and the window fogs from the inside. On a CGI Sentinel Series fixed unit, that usually means ordering the matching OEM insulated glass unit and re-glazing the original impact-rated frame, not replacing the whole window.
- Sagging or misaligned sashes on CGI impact-rated sliders. Impact-rated glass is heavy. After enough cycles, the interlocking weather seal on a CGI Estate Collection slider starts to bind, and the door gets stiff to operate. That’s not a lubrication problem; it’s sash geometry. We reset the panel, replace worn alignment blocks, and get the seal interlocking clean again.
- Worn roller assemblies on CGI patio doors. Second-story decks in Woodland Hills collect dust, leaf debris, and the fine grit that blows up Topanga Canyon on Santa Ana days. That grit chews through rollers. We replace them with OEM-spec roller assemblies designed for the door’s weight class, and we clean and align the track so the new rollers don’t die early.
- Cracked or pitted exterior aluminum cladding. CGI’s aluminum cladding takes a beating in our hotter microclimates, especially on homes near the hills where sun exposure is direct all day. Pitting and hairline cracks open a path for water behind the frame, which leads to rot in the rough opening. We strip the failed cladding, inspect for hidden water damage, and re-clad with materials matched to the original finish.
- Failed balance springs on CGI double-hung windows. When a CGI Tribute Series sash refuses to stay up, the balance spring is done. This is a five-minute diagnosis and a straightforward replacement, but it needs to happen before the homeowner starts propping windows open with scrap wood and hearing the frame rack under the load.
On a 2004 Mediterranean-style home near the Woodland Hills Country Club, our tech pulled a CGI Sentinel Series 72-inch fixed window that had lost its seal. Condensation was trapped between the panes, and the homeowner had already spent a weekend trying DIY drying tricks that don’t work. We ordered the matching OEM insulated glass unit, re-glazed the original impact-rated frame, and had it watertight in eight days. That same client called us back when two side-by-side CGI sliders on their second-story balcony started grinding; the roller tracks were packed with grit.
CGI Parts & Our Repair-vs-Replace Approach

We prefer OEM CGI replacement parts: rollers, balance springs, weatherstripping, lock sets, and insulated glass units. Impact-rated windows are built to tight tolerances, and a generic roller from the big box store changes the seating height enough to ruin the weather seal. For older CGI models where the factory no longer stocks parts, we use hardened aftermarket components matched to the original load specs, not universal-fit hardware. We’ll tell you straight when a unit is beyond service. If the frame is twisted, the insulated glass unit has delaminated, or the cost of three separate repairs approaches replacement cost, we say so. A patch on a failing frame only buys time, and we’d rather quote a new CGI window or door that’s warrantied than bill you twice.
If you’re weighing repair versus replacement on a CGI unit in Woodland Hills, call (341) 217-2776. We’ll diagnose it on site and give you a written line-item price either way.
Our CGI Service Process – Step by Step
- 1
Diagnosis. We inspect the frame, glazing, hardware, and rough opening for water intrusion. For CGI impact units, we verify the laminated glass interlayer hasn’t started to cloud or delaminate, and we check the interlocking seals on sliders and doors. You get a written diagnostic report with photos.
- 2
Repair or install. We remove the failed component, whether that’s a sash, an insulated glass unit, a roller assembly, or a full frame. On new CGI window installs in Woodland Hills, we flash the rough opening properly and set the frame in a way that handles our heat cycles without binding.
- 3
Test. We cycle every sash and slider, check the interlock, run water tests on new installs, and confirm operation torque is within spec. CGI’s heavier panels need the hardware set right or they’ll fail early.
- 4
Warranty. Every job carries our 365-Day Done Right Promise. If something wasn’t done right in the first year, we come back and make it right, in writing, no argument. The Relay Visibility Guarantee means your price, arrival time, and photo updates are confirmed before we pick up a tool.
See the difference
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AfterCGI Products We Service & Install in Woodland Hills

We work on every CGI residential line you’re likely to find in Woodland Hills homes:
- CGI Sentinel Series – the workhorse impact window line, common in newer custom builds and retrofits.
- CGI Estate Collection – higher-end units with heavier frames and larger format glass, found on a lot of hillside properties.
- CGI Tribute Series – double-hungs and casements that show up frequently in single-story ranches from the 1970s and 1980s.
- CGI Commercial Series – impact-rated storefront and multi-family units, typically on the commercial edges of Woodland Hills and mixed-use buildings.
We keep common OEM-spec rollers, weatherstripping, and balance springs stocked locally for CGI units, which means faster turnaround on the repairs Woodland Hills homeowners actually need. Insulated glass units and specialty hardware are ordered to spec, which typically adds a few days.
We Also Service These Brands
CGI isn’t the only window and door line our General Contractor team installs and repairs. Our crews also work on KraftMaid cabinetry, Cambria and Silestone countertops, and Kohler fixtures as part of our broader remodeling and renovation scope. That matters if you’re already into a project and discover one more window that needs attention.
FAQs – CGI Construction Service in Woodland Hills
Can you repair a CGI impact window instead of replacing the whole frame? Yes, in most cases. If the frame is square and the impact-rated glass is intact, we can replace the failed component: the insulated glass unit, the balance spring, the roller assembly, or the weatherstripping. We only recommend full replacement when the frame is compromised or the cost of multiple repairs doesn’t make sense against a new unit.
Why did my CGI window suddenly become hard to open or close? Most likely a worn roller assembly, a failed balance spring, or sash misalignment from settling. Woodland Hills homes built in the 1960s through 1980s move a little over decades, and CGI’s heavy impact-rated panels magnify the effect. Call (341) 217-2776 and we’ll diagnose the exact cause on site.
Do you install new CGI Sentinel Series windows on older homes in Woodland Hills? We do. Many of the older single-family homes here were built with wood-frame construction and original windows, so retrofitting CGI Sentinel Series impact windows is common. The install gets a proper flash and seal treatment in the rough opening, which matters on stucco exteriors that absorb a full day of valley heat.
What does it cost to replace fogged glass in a CGI window in Woodland Hills? It depends on the unit size and glass type, but a single insulated glass unit replacement runs far less than a full window replacement. Full window replacement in Woodland Hills runs $4,500 to $15,000, and impact window installation runs $8,000 to $25,000 depending on scope. Call (341) 217-2776 and we’ll give you an exact price in writing before any work starts.
Can you match the bronze or white CGI finish on a replacement window? Yes. We match both the finish color and the extrusion profile on the replacement unit so it doesn’t stand out against adjacent windows. This matters on homes where a single window is being swapped and the rest of the openings are original.
Is Sawyer Remodel Woodland Hills authorized by CGI? No. We’re an independent CGI service provider. That means we can recommend the right repair honestly without factory overhead influencing the quote, and we can also tell you when a competitive product would serve your home better.
How much does CGI construction cost in Woodland Hills? Impact window installation typically runs $8,000 to $25,000 on a full project. Window replacement runs $4,500 to $15,000, and roof repair that often accompanies window projects here runs $400 to $1,800.
| Service | Cost Range |
|---|---|
| Impact Window Installation | $8,000 – $25,000 |
| Window Replacement | $4,500 – $15,000 |
| Roof Repair | $400 – $1,800 |
Call (341) 217-2776 for a written line-item quote on your specific project.
Book Your CGI Service in Woodland Hills, CA
If you have a CGI window or door that’s fogged, stiff, pitted, or just not operating like it should, call (341) 217-2776. We’ll schedule a diagnostic visit, give you a written price before any work starts, and handle it under The Relay Visibility Guarantee.
Written by Luca Romano, Owner at Sawyer Remodel Woodland Hills, serving Woodland Hills since 2005.


