Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Sliding & Patio Doors Across Calabasas
Sliding patio door replacement in Calabasas averages $2,800 to $7,500 for a standard 6-foot unit, while panoramic multi-panel systems typically run $9,000 to $22,000 depending on opening width and WUI glass requirements. Most jobs take two to four weeks from measure to install once HOA and permit approvals clear. We work in Calabasas neighborhoods from The Oaks to Calabasas Hills every week, and we know the fire-hardening code, the HOA timelines, and the wind conditions that wear out door hardware faster here than anywhere else in the San Fernando Valley. Call (888) 635-0804 for a free estimate specific to your home.
If you live in Calabasas, your sliding door has to do more than open and close. It has to stand up to Santa Ana wind-driven dust, summer heat that hits 15 degrees above coastal LA, and Los Angeles County’s Very High Fire Hazard Severity Zone requirements. That changes what gets installed, how it gets permitted, and why half-measure repairs don’t last. Our Sliding & Patio Doors team has been handling exactly these conditions for years.
Why TruePane Windows & Doors Is Calabasas’s Preferred Sliding & Patio Doors Company
We’re not a franchise outfit with a rotating cast of subcontractors. TruePane Windows & Doors was founded by Dale Kessler, a second-generation glazier, and we run every Calabasas job with the same standard: if the pane is not true, the job is not done. That means measurements taken twice, manufacturer warranty layers registered in writing before the truck leaves your driveway, and a Done Right Promise that actually means something. No paperwork fights. No arguments.
Calabasas homeowners deal with enough gate codes, HOA filings, and permit inspections. A door company should not add to that load. Our technicians arrive in uniform, background-checked, and prepared for the site conditions specific to this part of Los Angeles County. When a home in Calabasas needs a heavy slider on a hillside lot, we stage the old door, the new frame, and the glazing without blocking a neighbor’s driveway or leaving debris in a shared walkway. That matters on tight streets off Mulholland Highway and Las Virgenes Road.
Dale Kessler started this company in 2008 with the belief that out-of-true installs and voided warranties were problems worth fixing permanently. Years of community-rooted service backs that conviction. We sponsor county fairs and church roof funds because we plan to be here in thirty years, still answering the phone when a Calabasas homeowner calls about a fogged seal.
Our Sliding & Patio Doors Services in Calabasas
Patio Sliding Doors
A standard two-panel aluminum or vinyl slider is the most common door we replace in Calabasas tract homes from the late 1970s and early 1980s. The original units almost always carry single-pane glass and non-tempered frames that fail both current Title 24 energy code and VHFHZ fire-hardening requirements. We replace them with multi-pane tempered glass and ignition-resistant frames sized to the existing opening, so you don’t eat the cost of reframing a wall.

Panoramic Sliding Systems
Homes in gated communities like The Oaks at Calabasas and Calabasas Park Estates increasingly move toward floor-to-ceiling panoramic sliders that open an entire wall to a backyard view. These systems weigh hundreds of pounds and demand precise track leveling on homes built into hillside slopes. We quote manufacturer lines side by side on paper so you see exactly what you are buying before you sign. Every warranty layer gets registered in writing, with durations stated, before we leave the site.

Heavy-Duty Sliding Doors
Oversized door panels on south- and west-facing Calabasas walls take real abuse. Sustained Santa Ana pressure differentials stress rollers, tracks, and locking hardware. We install heavy-duty roller systems rated for wide panels and service doors that bind in July because thermal expansion has bowed the slab or the panel itself. If a door scrapes or sticks, that’s a repair call worth making before the track gets gouged.

Pocket & Barn Doors
Not every Calabasas home has wall space for a full sliding panel, especially in kitchens and master suites in older tract layouts. A pocket door hides inside the wall cavity, and a barn door rides on exposed hardware. Both free up floor space in tighter floorplans, but they require a true wall opening. We measure twice and tell you honestly whether your wall can carry the hardware without a structural engineer signing off. Some Calabasas hillside lots have shear-wall requirements that restrict how much of a wall can be opened. We handle that with the permit set, not after inspection fails.

Screen Door Installation
Calabasas evenings bring the marine layer back over the Santa Monica Mountains, and a working screen door is the difference between open-air ventilation and a house full of moths. We install adjustable and custom-mesh screens for sliding and French door openings, including pet-resistant mesh that holds up to claws. Screen work is a same-visit job on most standard openings.

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 Calabasas
We’re an authorized installer for more than a dozen manufacturer lines, and for Calabasas work we regularly quote, PGT, CGI, and ES Windows. In WUI zones, PGT and CGI impact-rated product lines come up often because their glazing packages are tested for flying-ember resistance. We do side-by-side quotes in person, on paper, so a Calabasas homeowner can see the frame material, glass package, and warranty duration for each line before making a call. We also service existing doors from these brands and stock common roller assemblies, handles, and weatherstripping on our trucks for faster turnaround in 91302.
Common Sliding & Patio Doors Problems We See in Calabasas Homes
- Failed seals from thermal stress. Calabasas summers run 10 to 15 degrees above coastal LA, and south- and west-facing doors absorb that heat for hours. Insulated glass seals fail, argon escapes, and fog builds between the panes. Once that happens, the door no longer meets Calabasas fire-hardening or energy code, and a simple seal repair won’t pass inspection.
- Roller seizure from Santa Ana dust. High wind events funnel fine dust and grit through the Santa Monica Mountains passes and straight into door tracks across Calabasas. Rollers grind, seize, and then the panel rides on the track itself. You’ll hear a heavy dragging sound and feel the door fight you. Replacing rollers early saves the track; ignoring it means replacing the whole track assembly.
- Warped panels on sun-exposed walls. Dark frame colors facing south and west absorb heat unevenly and can bow over time. A bowed panel leaves a gap at the weatherstrip, which lets conditioned air leak and embers find entry during red-flag days. In WUI zones, that gap is also a fire-inspection failure.
- HOA-driven mismatched repairs. Calabasas communities like The Oaks require architectural review before any exterior door change. We’ve seen homeowners install a door that matched their taste but not the HOA’s approved color palette or grid pattern, then face a removal order. We pull cut sheets and color samples before the first hole is cut, so the review committee sees exactly what’s going in.
Pricing for Sliding & Patio Doors in Calabasas, CA
Here’s what Calabasas homeowners can expect to pay in this market:
- Standard 6-foot patio slider replacement: $2,800-$7,500, depending on frame material and glass package.
- WUI-compliant tempered and impact-rated glass upgrade: add $900-$2,400 per door assembly.
- Panoramic multi-panel sliding systems: $9,000-$22,000 for typical 12- to 16-foot openings, including structural header work where needed.
- Pocket door conversion: $3,200-$6,800, more if shear-wall engineering is required on a hillside lot.
- Screen door installation: $220-$580 for standard sliding-screen assemblies; custom pet-resistant mesh runs higher.
- Roller, track, and hardware repair: $180-$460 for most service calls, with no replacement parts hidden in the labor line.
What moves the price in Calabasas is the WUI glazing package, the condition of the existing rough opening, and whether your HOA requires specific frame colors or grid patterns that push you into a higher manufacturer line. We give written line-item quotes with fixed pricing, so the number on the estimate is the number on the bill. Call (888) 635-0804 to schedule your free estimate.
We Also Serve Cities Near Calabasas
TruePane serves homeowners throughout the west San Fernando Valley and the mountain communities. We work regularly in Woodland Hills, West Hills, Topanga, and Canoga Park, and we carry the same WUI-compliant product lines and the same Done Right Promise to every job. If you’re a few miles outside 91302, call (888) 635-0804 and we’ll confirm coverage.
Serving Calabasas, CA - Our Local Coverage Area
We’re based in the Calabasas 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 - Sliding & Patio Doors in Calabasas
Yes. Homes in Calabasas fall under Los Angeles County’s Very High Fire Hazard Severity Zone mapping, and any exterior door replacement must use multi-pane tempered glass, ignition-resistant or non-combustible frames, and ember-resistant construction details. The county inspector will check the glazing package and frame material at final inspection. We pull the permit, install to the WUI checklist, and register both warranty layers in writing before the truck leaves your driveway. Call (888) 635-0804 if you want a fix that passes on the first try.
Plan on three to six weeks. Architectural review committees in The Oaks require product cut sheets, frame color samples, and grid or muntin pattern drawings before the city permit can even be pulled. We prepare that submittal package as part of the estimate, and we track the review so the project doesn’t stall waiting on a missing color chip. A failure to match the community standard can set you back another four weeks, which is why we get the approval before we order glass.
Often yes, but it’s not automatic. Hillside homes in Calabasas frequently have shear-wall requirements that limit how much of a load-bearing wall can be cut open. We evaluate the opening, check the structural notes on your current permit set, and tell you honestly whether the conversion needs a structural engineer’s review. Where pocket doors work, we handle the framing and hardware as a single permit scope. Call (888) 635-0804 for a free evaluation.
Fog between panes means the insulated glass seal has failed and the argon or krypton fill has escaped. In Calabasas, that door no longer meets the energy performance standard under Title 24, and in a WUI zone the failed unit is also a fire-hardening violation because the glazing assembly is no longer performing as rated. Replacing the glass unit, not just the door, is the only way to pass inspection. We match the replacement glass to the WUI code and the frame’s original rating.
Yes. The City of Calabasas restricts construction noise to standard daytime hours, and in some neighborhoods adjacent to schools or residential care facilities the window is even tighter. We stage cutting and demolition work inside those hours, and we coordinate with your HOA’s rules for shared-wall notices. This planning is part of every estimate, so the job doesn’t get shut down mid-cut on a Saturday afternoon. Call (888) 635-0804 to schedule your free estimate.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Calabasas and surrounding communities.



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