Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Westlake Village
Window replacement in Westlake Village typically costs between $850 and $2,400 per window for insert replacements, and $1,200 to $3,200 per window for full frame work, depending on glass package, frame material, and whether HOA review is required. Most of our Westlake Village jobs are completed in one visit once materials arrive, and we handle the architectural committee paperwork so you don’t have to. If you’re weighing options for your Window Replacement project, call (888) 635-0804 and we’ll walk through what applies to your street, your association, and your home.
TruePane has worked in Westlake Village long enough to know that every job here comes with a second set of eyes: the HOA architectural review committee. That’s not a nuisance to us. It’s the baseline. We prepare submittal packets, specify frame colors and grille patterns that match your tract’s guidelines, and build the review window into the schedule so your home isn’t sitting half-finished waiting on a committee vote.
Why TruePane Windows & Doors Is Westlake Village’s Preferred Window Replacement Company
We’re the Westlake Village window replacement crew that treats HOA covenants as part of the job, not an afterthought. Dale Kessler founded TruePane in 2008 on a straightforward rule: if the pane is not true, the job is not done. That standard carries through every Westlake Trails casement rebuild, every First Neighborhood slider replacement, every Foxmoor Hills insert install.
Our technicians are background-checked and uniformed. They measure every opening twice, write 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 not a slogan. It’s the reason Westlake Village homeowners who’ve been burned once by a fogged seal or a binding door call us when they’re ready to do it right.
Response time to Westlake Village from our Los Angeles dispatch is straightforward: a live person answers the phone 24 hours a day, 7 days a week. No voicemail tree, no call center. When you call (888) 635-0804, you get a person who can schedule the measure and start the estimate, usually the same week.
Our Window Replacement Services in Westlake Village
Full Frame Replacement
Full frame replacement means the entire window comes out down to the rough opening, including the jamb, sill, and trim. In Westlake Village, this is the work we recommend most often for homes built in the late 1960s through mid-1980s with original aluminum frames. Those frames corrode from decades of valley heat cycling, and the single-pane glass in them does almost nothing against Conejo Valley summers that regularly pass 100°F. Expect to pay $1,200 to $3,200 per opening depending on size, glass package, and whether the HOA requires a specific frame material or color.

Insert Window Replacement
Insert replacement keeps your existing frame and installs a new sash and glass package inside it. It’s less invasive and typically runs $850 to $2,400 per window. Inserts make sense in Westlake Village when the original frame is still square and sound, the HOA wants to preserve the existing exterior trim profile, and you’re mainly solving fogged glass, failed seals, or poor insulation. We won’t sell you an insert if the frame is compromised; racked corners from Santa Ana gusts need full frame work, not a band-aid.

Storm Window Replacement
Storm windows are less common in Westlake Village than in harsher climates, but some older tracts have them for noise control along the 101 corridor or for extra wind protection on west- and north-facing exposures. Replacement storm windows here run $400 to $900 per unit installed. If your storm windows are rattling during Santa Ana events or the tracks are worn, we measure, order, and set them square.

Energy-Efficient Upgrade
The majority of our Westlake Village work is energy-driven. Homeowners here want low-E glass, argon fill, and insulated frames that actually hold temperature when it’s 105°F outside and 58°F at night. Energy-efficient packages add $150 to $400 per window over standard clear glass. In a valley where cooling runs from May through October, that difference pays back faster than most people expect. We quote Milgard, PGT, and ES Windows side by side on paper so you see exactly what you’re buying.

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 Westlake Village
We’re an authorized installer for more than a dozen manufacturer lines, and for Westlake Village homes we regularly install, PGT, and ES Windows. Each has strengths: PGT makes impact-rated and Chapter 7A-compliant products that matter in a Very High Fire Hazard Severity Zone, Milgard’s Tuscany line holds up well to valley heat cycling, and ES Windows does clean contemporary frames that some Westlake Village HOAs favor for modern remodels. We stock common replacement parts locally so a broken latch, failed balance, or worn weatherstripping doesn’t strand you for weeks waiting on freight.
Common Window Replacement Problems We See in Westlake Village Homes
- Fogged single-pane aluminum sliders. The original 1970s frames from Westlake Village’s master-planned build-out were aluminum with single-pane glass. The seals are decades past their service life. Once seal failure hits, condensation lives between the panes and the argon (if it was ever retrofitted) is gone, leaving you with a window that insulates about as well as an open vent during a 100°F Conejo Valley afternoon.
- Casement windows racked out of square by Santa Ana winds. The gusts that funnel down the Santa Monica Mountain foothills hit west- and north-facing windows hard. Over time, racked sashes stop sealing, weatherstripping fails repeatedly, and no amount of adjustment fixes the underlying frame twist. That’s when a full frame replacement becomes the only honest fix.
- HOA rejection of unapproved frame colors or grille patterns. This one catches out-of-area contractors off guard more than any other. They tear out a window, and mid-project the architectural committee objects to the frame color or grille configuration. Now the opening is exposed while committees deliberate. We file the submittal packet before we order materials, so by the time we’re on site, the review is already settled.
- Wood frame shrinkage and seasonal gapping. Westlake Village’s climate swings between extreme heat and cool nights with very low humidity. Wood door and window frames shrink and gap seasonally in the older tract neighborhoods, letting drafts in and comfort out. In many cases, replacing a warped wood frame with a modern insulated unit is a better long-term move than chasing the gaps with caulk every few months.
Pricing for Window Replacement in Westlake Village, CA
Here’s the straight answer on what window replacement costs in Westlake Village right now. Insert replacement runs $850 to $2,400 per window. Full frame replacement runs $1,200 to $3,200 per window. Storm window replacement runs $400 to $900 per unit. Energy-efficient glass packages add $150 to $400 per window. A typical 5-window insert project in Westlake Village lands between $4,500 and $11,000 total, and a typical 5-window full frame project between $6,500 and $15,000.
What moves the number? Glass package (Chapter 7A-compliant multi-pane tempered glass costs more than standard low-E), frame material, window size, second-story access, and whether the HOA requires a specific manufacturer or finish. We give you a written line-item quote before any work starts, with no change orders and no surprise line items. Call (888) 635-0804 and we’ll schedule a free measure and estimate. The quote you get is the price you pay.
We Also Serve Cities Near Westlake Village
If you’re in Thousand Oaks, Agoura Hills, Oak Park, or Calabasas, we work there regularly too. The same HOA-aware approach applies, though each city has its own architectural review rhythm. Call (888) 635-0804 and tell us where you are; we’ll tell you straight whether we can get to you this week.
Serving Westlake Village, CA - Our Local Coverage Area
We’re based in the Westlake Village 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 - Window Replacement in Westlake Village
Yes, HOA architectural review in Westlake Village regularly adds 2 to 6 weeks to a window replacement project, depending on your association’s meeting schedule and whether the submittal packet is complete. Some committees meet monthly, some twice a month. We file the packet before ordering materials, so the review runs while your windows are being manufactured. That way, the delay doesn’t stack on top of production lead time. Call (888) 635-0804 and we’ll tell you what your specific association typically requires.
Because Westlake Village was master-planned and built out primarily between the late 1960s and mid-1980s, and those original aluminum single-pane windows were standard at the time. Aluminum frames corrode after decades of valley heat cycling, and the single-pane glass provides almost no insulation against summer temperatures above 100°F. Once the seal fails, condensation forms between panes and the unit is effectively done. Replacement is the fix, not repair. We quote the work for your specific home, free.
Santa Ana winds rack casement sashes out of square over time, especially on west- and north-facing exposures that catch downslope gusts off the Santa Monica Mountain foothills. Once the frame twists, the sash stops sealing, weatherstripping fails repeatedly, and air leaks through every time the wind kicks up. At that point, rebuilding the jamb and installing a new frame is the honest fix. We do that work regularly in the Westlake Trails and Foxmoor Hills neighborhoods.
Chapter 7A-compliant windows are built to California’s Wildland-Urban Interface building code, which Westlake Village falls under as a Very High Fire Hazard Severity Zone. That means multi-pane tempered glass, non-combustible frames, and in some cases ember-resistant screening. The 2018 Woolsey Fire’s destruction of adjacent neighborhoods changed how Westlake Village homeowners spec windows. We carry PGT and other Chapter 7A-compliant lines and we’ll tell you honestly whether your elevation and lot actually require them. Call (888) 635-0804 for a straight answer and a free estimate.
Sometimes, yes. If the wood frames are still sound and square, and the sashes are intact, restoration or insert replacement may be an option. But Westlake Village’s low humidity and extreme heat differentials cause wood frames to shrink and gap seasonally in the older tract neighborhoods, and once the wood has moved enough, restoring it is chasing a problem that will return. We’ll tell you straight which way to go, and we’ll quote restoration, insert, and full frame side by side so you can see the real numbers. Estimates are free.
Schedule Your Free Estimate in Westlake Village
Window replacement in Westlake Village has three moving parts most contractors ignore: HOA architectural review, WUI fire code compliance, and Santa Ana wind loads. We’ve handled all three on hundreds of local jobs, from Westlake Trails casement rebuilds to First Neighborhood slider replacements. We stand behind the work with the Done Right Promise and The Keystone Standard: both warranty layers registered in writing, durations stated, before we leave your driveway. Call (888) 635-0804 today and we’ll schedule your free measure and estimate. If the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Westlake Village and the Conejo Valley.



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