Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom Windows & Doors Across West Hills
Custom window and door work in West Hills runs on two clocks: the manufacturer’s lead time, and the city’s fire-zone permit review. We coordinate both so the schedule doesn’t stall. If you’re planning a hillside rebuild, an architectural grille package, or an oversized glass wall, call (888) 635-0804 and we’ll walk the job with you before anything gets ordered.
The northern streets of West Hills sit in a Very High Fire Hazard Severity Zone. That one fact changes what gets specified, what the city will approve, and what a window or door actually costs here. We’ve done enough work off Roscoe Boulevard and the streets below the Santa Susana foothills to know which openings will pass review and which products the inspectors will kick back. Dale Kessler and our Custom Windows & Doors team handle the documentation side so homeowners don’t get surprised after the deposit clears.
Why TruePane Windows & Doors Is West Hills’s Preferred Custom Windows & Doors Company
TruePane has been doing glass and door work in West Hills long enough to know the difference between a flatland Valley tract home and a hillside custom with fire-zone obligations. We’re not a franchise. Dale Kessler founded the company in 2008 on a rule he’s kept on the whiteboard ever since: if the pane is not true, the job is not done.
West Hills homeowners call us because a live person answers the phone, day or night. Not a voicemail tree. Not a regional call center. When a Santa Ana wind event rips through the Pass and a patio door seal starts whistling, someone needs to hear about it on the first ring. That’s how we’ve always run the office.
Our technicians are background-checked and uniformed. They measure every opening twice. They quote manufacturer lines side by side on paper, so you see exactly what you’re buying and what it costs before you commit. And when the job’s done, both manufacturer warranty layers are registered in writing, with durations stated, before the truck leaves your driveway. That’s the Keystone Standard, and it’s been the baseline on every job we’ve done in West Hills.
The Done Right Promise backs the workmanship. If something isn’t right, we make it right. No paperwork fight. No fine print. That promise matters to people who’ve been burned by a contractor who disappeared six weeks after cashing the check.
Our Custom Windows & Doors Services in West Hills
Custom work in West Hills is a different animal than a standard replacement. The openings are older, the fire-zone rules are stricter, and the homeowner usually has specific ideas about how the glass should look. Here’s what we handle most often.
Architectural Grilles & SDLs
Simulated divided lites change the character of a window completely, and on 1960s and 1970s ranch homes in West Hills, they’re one of the most requested upgrades we install. A homeowner off Sherman Way wanted the look of true divided lite windows on a rear elevation without the maintenance. We spec’d SDL grilles in a Marvin Ultimate frame, matched the muntin profile to the home’s original casement windows, and the result reads as original from the street. In the fire hazard zone, the grille bars and the insulated glass unit both have to be verified against the same SFM listing. We handle that verification before the order goes in.

Oversized Glass Panels
A lot of West Hills homes, especially the larger 1980s and 1990s builds on the northern hillside streets, were designed around big glass. Replacing a 12-foot sliding wall or a floor-to-ceiling picture window is not a stock-order job. The glass lites get heavy; the frames need reinforcement; and in the VHFHSZ, the assembly’s fire rating has to be documented for the permit. We’ve replaced oversized panels on deck-facing walls off Valley Circle Boulevard where the old tempered units had failed and the homeowners wanted low-E, impact-rated glass with the same sightlines. It’s a crane-and-set job. We coordinate it end to end.

Custom Shape Windows
Arched transoms, radius-top picture windows, octagonal accent glass: West Hills ranch homes and the newer hillside customs both have them, and when they fog or crack, the replacement can’t be a stock size. We order to the exact rough opening, allow for the frame’s thermal expansion in this climate, and make sure the insulated unit carries whatever fire-resistance rating the zone requires. A bowed or radiused opening near the Santa Susana foothills isn’t a problem, but it does add lead time. We tell homeowners that up front so there’s no pressure to accept a product that isn’t right.

Commercial Storefront Glazing & Curtain Wall Systems
West Hills has a handful of small commercial properties along Roscoe Boulevard and Platt Avenue that need storefront reglazing or full curtain wall service. Same principle applies: in a fire hazard zone, the glazing assembly has to be listed and documented. We handle storefront glass, aluminum framing, and curtain wall repair for commercial clients without disrupting business hours. The schedule is tighter, the products are heavier, and the paperwork still has to be right.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in West Hills
We’re an authorized installer for more than a dozen manufacturer lines, and on custom work in West Hills we lean on, and PGT. Marvin’s extruded aluminum cladding holds up under the Santa Ana wind loads that funnel through the Pass, Pella’s architect series gives us the grille profiles and SDL options West Hills homeowners tend to ask for, and PGT’s impact-rated products carry the SFM listings this zone demands. We also work with Ply Gem and CWS where the job calls for it. Because we stock local parts and order directly from the manufacturers, we can usually turn around a West Hills repair faster than an out-of-area shop that’s still waiting on a parts shipment from another state.
Common Custom Windows & Doors Problems We See in West Hills Homes
- Warped aluminum frames from Santa Susana wind loads. The Pass funnels wind into West Hills with more force than the flatland Valley gets, and original 1960s and 1970s single-pane aluminum sliders can’t take it. Frames twist, seals break, and the door binds in its track by October. We see this every fall.
- Failed seals from aggressive thermal cycling. Summer temperatures in the interior Valley routinely top 100°F, and the older single-pane frames expand and contract hard every afternoon. Fogged glass, condensation between panes, and a spike in energy bills are the usual tells. Replacement needs a low-E insulated unit rated for the exposure.
- Non-rated products ordered before the permit review. This is the expensive one. A homeowner (or a contractor from outside the area) orders a beautiful non-rated double-hung or casement, the city triggers the Chapter 7A compliance review, and the submittal gets rejected. Now the product is sitting in a warehouse while the correct SFM-listed assembly gets re-ordered. That delay can push a job back by months.
- Sagging jambs on original 1970s openings. The rough openings on older West Hills ranch homes were never sized for today’s heavier dual-pane units. If the jamb has settled, the new window or door won’t sit true no matter how carefully it’s installed. We check for sag before we order, and we tell you what the fix costs in writing before any glass is cut.
Pricing for Custom Windows & Doors in West Hills, CA
A custom shape window in West Hills, ordered to fit a radius or arch opening on a hillside home, typically runs $1,800 to $4,500 per unit installed, depending on size, frame material, and whether the insulated glass needs an SFM fire-resistance rating. Architectural grilles and SDLs add $150 to $400 per window for the grille package and labor. Oversized glass panels, like a 10-foot picture window or a sliding wall replacement, run $4,000 to $12,000 installed when you factor in the heavier lites, reinforced framing, and the crane or two-man set. Commercial storefront and curtain wall work is quoted by the job because the framing systems and glazing loads vary so much from one storefront to the next.
The lead time on custom glass, not labor, is what sets the calendar. A standard custom-order window is 8 to 12 weeks from approval to install. Fire-rated assemblies in the VHFHSZ can extend that to 14 to 16 weeks depending on manufacturer capacity. That’s not a delay we control; it’s the reality of ordering listed products from a factory line. What we do control is the price. Every quote is fixed in writing before anything is ordered. No change orders. No surprise line items. Call (888) 635-0804 for an exact quote on your opening. The estimate is free.
We Also Serve Cities Near West Hills
TruePane’s crews cover the neighborhoods around West Hills every week, including Canoga Park, Woodland Hills, Calabasas, and Chatsworth. Fire-zone rules change at the city line and the hillside boundary, so if you’re a few blocks east or up the grade, give us a call and we’ll tell you exactly what applies to your address.
Serving West Hills, CA - Our Local Coverage Area
We’re based in the West 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 - Custom Windows & Doors in West Hills
Yes, if your West Hills home sits north of the 101 in the Very High Fire Hazard Severity Zone, any window or door replacement triggers a Chapter 7A compliance review under the California Building Code, and that applies to rebuilds and original homes alike. The city will want documentation that the glazing assembly is SFM-listed. We pull that documentation before the order is placed so the permit doesn’t stall. Call (888) 635-0804 and we’ll check the zone for your address.
Yes, and we spec both regularly on hillside work here. The key is ordering the correct SFM-listed assembly up front, not finding out after the permit review that the unit doesn’t meet Chapter 7A. We work directly with Marvin and Pella’s architectural lines to match the fire-rating requirement to the specific exposure on your lot. That’s the same documentation step our techs handled on a Roscoe Boulevard rebuild after the Woolsey Fire, and it’s the difference between a job that starts on schedule and one that waits on a re-order.
Because the Santa Susana Pass funnels wind into West Hills with force that the flatland Valley doesn’t see, and original 1960s and 1970s single-pane aluminum frames weren’t built for it. The frames flex under repeated gusts, the seals give out, and the track binds. It’s normal for this neighborhood, but it’s also a sign the unit is at the end of its life. A replacement double-pane unit with a reinforced frame holds its line. Call for a free look at the opening.
The manufacturer’s production line and the SFM listing documentation, in that order. A custom-order window is 8 to 12 weeks out; a fire-rated assembly in the VHFHSZ can run 14 to 16 weeks. Grilles, SDLs, oversized lites, and specialty finishes all add production time. We give you the real lead time in writing before you commit, and we don’t compress the schedule by ordering a non-rated product and hoping the city won’t notice. The city always notices. Call (888) 635-0804 for an exact timeline on your opening.
Yes, but the fire-rating requirement applies, and the larger opening usually means a heavier header and reinforced framing. On hillside lots below the Santa Susana foothills, we’ve done this on homes where the old slider’s aluminum frame had warped from decades of wind load and the homeowner wanted the view without the binding track. The new glass wall gets an SFM-listed assembly, an impact-rated insulated unit, and a frame engineered for the wind exposure. It’s a multi-day install, not a same-day swap. The price is fixed in writing before we order, and the lead time is exactly what the manufacturer quotes. Call (888) 635-0804 and we’ll walk the opening with you.
If you’re planning custom windows or doors in West Hills, don’t order anything until the fire-zone documentation is right and the opening has been measured twice. That’s the job. Call (888) 635-0804 to schedule your free estimate. We’ll give you a straight answer, a written quote, and a schedule you can plan around.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving West Hills and the surrounding San Fernando Valley communities.



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