Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Door Installation Across West Hills
Door installation in West Hills runs $600-$3,800 for most entry and patio doors, with fire-rated or custom arched assemblies landing higher because of the VHFHSZ paperwork, not because the labor is harder. If you live off Saticoy, Roscoe, or up near the Santa Susana foothills, you already know a permit for a door replacement triggers a California Building Code Chapter 7A review that flatland neighbors in Canoga Park never see. We’ve worked those reviews since the 2018 Woolsey Fire rebuilds and we know which SFM-listed door assemblies pass the first time. Call (888) 635-0804 and ask for a free estimate on your door. A person picks up, and that person knows West Hills.
Why TruePane Windows & Doors Is West Hills’s Preferred Door Installation Company
We’re a second-generation glazier, not a franchise. Dale Kessler founded TruePane in 2008 on a rule he still keeps on the whiteboard: if the pane is not true, the job is not done. Over years in this trade has shown us that West Hills door work is different from the rest of the Valley. The wind comes through the Santa Susana Pass harder here. The summer heat bakes the old aluminum frames until they bind. And the hillside lots near the northern end of town add grade and drainage problems a flatland installer never thinks about until the first heavy rain.
Our technicians show up background-checked and uniformed, measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers in writing before the truck leaves your driveway. That’s the Keystone Standard, and it’s on every job. West Hills homeowners who’ve been through one bad install tend to notice things like that. They notice that we pull the permit right and document the SFM listing the first time. They notice we don’t leave a subfloor to rot under a door we set. They notice the Done Right Promise is in writing and there’s no fine print to argue with later.
We schedule and dispatch from our Los Angeles office, but the crews serving West Hills live and work in the west Valley. They know the difference between a 1964 ranch on Saticoy Street and an 80s custom up in the hills, and that matters when you’re quoting a door that has to satisfy a fire marshal’s checklist.
Our Door Installation Services in West Hills
Entry & Swing Doors
In a West Hills ranch, the front entry usually has an original hollow-core door with an aluminum storm that stopped sealing during the Reagan administration. We replace those with insulated steel or fiberglass doors that carry SFM-listed fire-resistant ratings without looking like a commercial fire door. A standard entry and swing door install in West Hills runs $1,200-$3,400, installed and trimmed, depending on whether we’re re-framing the jamb or just hanging on existing bucks. Hillside homes with side-swing doors that catch the Santa Ana winds can also need heavier hinges and threshold gaskets that flat street installs skip.

Arched & Custom Doors
The custom homes off Valley Circle and up the northern hillside streets often have arched entries or oversized openings that a stock door will never fill. We build orders for custom arched doors and oversized pivot-ready assemblies through our manufacturer lines, and we have the local experience to know which of them will survive the Chapter 7A review. The mistake we see too often is a homeowner ordering a beautiful custom door, then finding out during the permit review that the specific glass package isn’t SFM-listed for a VHFHSZ installation. We check the listing before we ever submit the permit.

Pivot Doors
Pivot door installation in West Hills is a different animal than a standard hinged entry. The pivot hardware carries the door’s full weight off a single point at the floor and header, which means the floor slab under the pivot needs to be true or the door drifts and drags within a season. On hillside lots with slab-on-grade foundations that have settled over 30 years, you’d be surprised how often the slab isn’t flat. We check it with a string line before we quote. A pivot door in West Hills runs $2,800-$6,500, installed, and the fire-rating paperwork for a large pivot can add two to three weeks to the permitting timeline. Plan for that.

Double & French Doors
French doors and double doors are the workhorses of West Hills patio access, especially on the ranch homes where the original sliders face the backyard. A quality double French door with a fire-rated glass package and proper sill pan runs $1,800-$4,200. We always set a sill pan and sloped flashing on patio door work in West Hills because the first Santa Ana-driven rain will find any gap and rot the subfloor before you notice. That’s not a luxury add-on. That’s a West Hills requirement.

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 install and service more than a dozen manufacturer lines, and we’re authorized installers for, PGT, CGI, and ES Windows. For West Hills homeowners specifically, we keep parts on hand for Door Installation work involving Milgard and CGI fiberglass lines, because those are the two most common fire-rated assemblies we submit on VHFHSZ permits. On a 1964 ranch on Saticoy Street, our crew replaced a bowed original aluminum slider with a Milgard Tuscany double-hung and a fiberglass entry door, but the permit review flagged the old jamb’s lack of fire-rated backing, so we re-framed with a fusion-welded frame and flashing tape before the inspector would sign off. That’s the difference between an installer who reads the code and one who’s never been through a West Hills correction notice.
Common Door Installation Problems We See in West Hills Homes
- The permit correction nobody expected. A contractor orders a non-rated fiberglass door for a West Hills customer, pulls the permit, then gets a VHFHSZ correction requiring an SFM-listed assembly. The customer waits six more weeks for the right door to arrive. We order the rated door first, and we’ve had to fix this exact mistake for more than a few homeowners who hired out-of-area crews before calling us.
- Water intrusion under the threshold. On a hillside lot, an untested patio door is set without a sill pan or sloped flashing. The first Santa Ana-driven rain sends water under the threshold and rots the subfloor before the homeowner even sees a stain. Our crews set a sill pan, slope the flashing, and tool the sealing joints against wind-driven rain. Not optional in West Hills.
- The “fix” that fixes nothing. A ranch home’s original 1970s aluminum frame has a blown insulated glass unit. The homeowner replaces just the sash, but the unsealed frame still lets 100-degree Valley heat bleed through, so the fix saves nothing on cooling. We show customers the actual heat loss in the frame before they spend money on a half-repair.
- The non-rated slider that got through before 2018. Many West Hills homes have sliders or patio doors that were installed before the Woolsey Fire, often with no fire-resistance listing at all. When those doors are replaced and the permit is pulled, the inspector will catch it. We plan for it from the first visit so the job doesn’t stall.
Pricing for Door Installation in West Hills, CA
A standard entry or swing door replacement for a West Hills ranch home runs $1,200-$3,400, including the door, hardware, and basic trim. A double or French patio door is $1,800-$4,200, and a pivot door in the custom hillside homes is $2,800-$6,500 on average. Arched and custom doors run from $2,600 up, based on size and fire-rating requirements. The biggest price driver in West Hills isn’t the door itself. It’s the Chapter 7A review and the cost of documenting SFM-listed assemblies when the existing rough opening has no fire-rated backing, which forces us to re-frame. We quote manufacturer lines side by side on paper, and we will not surprise you with a change order after the permit is pulled. Call (888) 635-0804 and we’ll send someone out to measure and give you a written line-item price.
We Also Serve Cities Near West Hills
Our crews working Door Installation in West Hills also cover Canoga Park, Woodland Hills, Calabasas, and Chatsworth. The permit rules change when you cross into those flatlands; that’s exactly why we scope each job by address before quoting. If you’re in West Hills or anywhere near it, the same phone number gets you the same person: (888) 635-0804.
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 - Door Installation in West Hills
An SFM listing is a certification from the California State Fire Marshal that a specific door assembly has been tested and approved for use in wildland-urban interface zones. In West Hills, because the entire area sits in a state-designated Very High Fire Hazard Severity Zone, any door replacement that requires a permit must use a door assembly carrying an SFM listing. Common qualifying products include specific fiberglass and steel door lines from Milgard, CG I, and Marvin with fire-resistant glass packages and rated frames. We verify the listing documentation before we submit the permit, so the job doesn’t stall at the counter. Call (888) 635-0804 and we’ll check your specific door before you order it.
No. If your lot drains toward the new opening, or if the slab is already settled and out of level, putting in a larger glass door without a sill pan and proper sloping will put water under the threshold in the first heavy rain, and the inspector will likely flag the missing fire-rated assembly anyway. On hillside lots in West Hills, we look at the existing grade, the slab flatness, and the drainage pattern before quoting. Any change to the opening width or header triggers structural review. Call (888) 635-0804 and we’ll measure the opening and the slope together.
Yes, a door replacement on an ADU still requires a permit in West Hills, and because the ADU sits on the same VHFHSZ parcel, the fire-rating compliance review applies. A septic or well setback check is generally only triggered if the door work involves moving a wall or changing the building footprint; a like-for-like door swap in an existing rough opening doesn’t usually require it. But once the permit is open, the reviewer can ask about existing setbacks. We handle the paperwork and tell you up front what the reviewer will likely ask. Call (888) 635-0804 for specifics on your ADU.
Fog between panes means the insulated glass unit’s seal has failed and moisture has gotten inside the air space. It’s common in West Hills because the hot valley summers and the cold winter winds through the Santa Susana Pass cause aggressive thermal expansion and contraction in older single-pane and original double-pane frames. In some cases we can replace just the insulated glass unit, but on many 1960s and 1970s frames the frame itself has lost its seal integrity, so replacing the glass won’t solve the draft. We’ll tell you which one you have before we recommend anything. Call (888) 635-0804 and we’ll inspect the unit.
Yes. The VHFHSZ designation covers all of West Hills, not just the northern hillside streets. A door replacement on Saticoy Street faces the same Chapter 7A review as one up by the foothills. What changes is the likelihood of an out-of-area installer knowing that. Flat ranch streets in West Hills get the same fire-rating requirement as the hillside custom homes, and we submit the SFM documentation on both. Call (888) 635-0804 and we’ll walk you through what your specific address requires.
Written by the team at TruePane Windows & Doors, led by Dale Kessler, serving West Hills with door installation, replacement, and fire-rating compliance work.
If you’re ready to get a fair, written price on your door job in West Hills, call (888) 635-0804 now for a free estimate. A live person answers, and that person knows the permit rules, the wind patterns, and the door requirements that make West Hills different from the rest of the Valley.



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