Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
Before
After
Before
After
Before
AfterFast, Reliable Window Replacement Across Agoura
Window replacement in Agoura runs $900-$2,400 per opening for a typical full-frame install, and $450-$1,100 per opening for an insert replacement where the original frame is still square. Most Agoura homeowners we work with are in 1970s-1990s tract homes near Kanan Road, Liberty Canyon, or the neighborhoods along Thousand Oaks Boulevard, where original aluminum single-pane windows have been failing for years. Our crews serve Agoura directly from our Los Angeles dispatch, and a live person answers when you call (888) 635-0804.
One thing sets Agoura apart from every city around it: the entire community sits inside a Very High Fire Hazard Severity Zone. That changes what gets installed, what gets permitted, and what a homeowner can actually get away with when the County reviews a job. We know those rules cold because we pull Agoura permits regularly, and we spec glass to those requirements on every quote, not just when an inspector forces it.
Why TruePane Windows & Doors Is Agoura’s Preferred Window Replacement Company
TruePane has been at this since 2008 under Dale Kessler’s founding rule: if the pane is not true, the job is not done. We are not a franchise operation cycling through subcontractors. We are an authorized installer for more than a dozen manufacturer lines including PGT, CGI, and ES Windows, and we put quotes side by side on paper so you see exactly what each line costs and what it buys you in fire-exposed elevations.
Our Agoura customers tend to be people who have lived in the same house for twenty or thirty years. They remember what the original windows looked like when they moved in, and they know which ones fog up first when the Santa Anas blow. They call us because a neighbor used us after the Woolsey Fire rebuilds started, or because the County flagged their re-roof permit and they need glass that passes VHFHSZ plan check the first time. We show up on time, in uniform, background-checked, and we measure every opening twice before we order anything.
Every job carries the Done Right Promise under The Keystone Standard. Both manufacturer warranty layers get registered in writing, with durations stated, before our truck leaves your driveway. No paperwork fights later. We also offer a permanent 5% discount for seniors and veterans, which matters to a lot of Agoura homeowners.
Response time to Agoura is typically 1-2 business days for an estimate visit. We schedule around your availability, not the other way around.
Our Window Replacement Services in Agoura
Full Frame Replacement
Full frame replacement means the old window comes out down to the rough opening, the framing gets inspected and corrected if needed, flashing gets redone, and a complete new unit goes in. In Agoura, this is the work we recommend for original 1970s-1990s aluminum single-panes, especially on south- and west-facing elevations. Those frames have been racked and baked for decades, and the openings are rarely square anymore. A full frame replacement in Agoura typically runs $900-$1,900 per window depending on size and glazing spec.
Insert Window Replacement
If the original frame is still sound and square, an insert replacement drops a new sash and track system inside the existing opening. It’s less invasive, costs less, and leaves your interior trim untouched. On Agoura homes where the frames survived the Woolsey Fire and the County hasn’t flagged the elevation, inserts are a smart option. Expect $450-$900 per opening for a standard double-hung insert, more for casement or oversized units.
Storm Window Replacement
Storm windows in Agoura are most common on the mountain-facing sides of homes along Mulholland Highway and Liberty Canyon Road where Santa Ana gusts hit sustained velocities that stress frames and hardware. Replacing a failed storm window means matching the original mounting system and glazing type, and we often upgrade to laminated or impact-rated glass while we’re in there. Typical cost in Agoura runs $350-$800 per storm unit, installed.
Energy-Efficient Upgrade
This is the service most Agoura homeowners actually need. Original single-pane aluminum and early dual-pane windows from the 1980s leak air during Santa Ana wind events and lose their argon fill fast because of Agoura’s 30°F overnight temperature swings. We install dual-pane low-E argon-filled units with fusion-welded frames from lines like Milgard, Andersen, and PGT. The upgrade typically runs $800-$1,800 per window for full frame, less for inserts. Homeowners routinely see drafts disappear and summer cooling bills drop within the first season.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Agoura
We are an authorized installer for PGT, CGI, ES Windows, among others. For Agoura specifically, we stock the parts and hardware for PGT and CGI impact-rated lines because so many post-Woolsey rebuilds and VHFHSZ-mandated replacements call for them. That means faster turnaround when a latch fails or a sash needs re-alignment, and no second appointment left hanging while we order parts someone else should have had on the truck.
Common Window Replacement Problems We See in Agoura Homes
- Original single-pane aluminum frames leak air during Santa Ana events. Homeowners feel drafts with the windows closed because the gaskets and weatherstripping on 40-year-old aluminum are gone. These units need full frame replacement, not just new glass.
- South- and west-facing sashes rack and bind within a few seasons. The thermal cycling plus sustained wind stress warps the corners on older frames. You see it as a window that won’t close square or a crank that fights you.
- Early dual-pane windows fog between the glass within 8-12 years. Agoura’s hot days and cold nights cause aggressive thermal cycling, which kills the IGU seals faster than in coastal or deeper-inland markets. Once the fog is inside the unit, the glass package is dead.
- A permitted addition or re-roof triggers a window compliance review. Los Angeles County now requires fire-exposed elevations to have multi-pane tempered or fire-resistant glazing when a permit gets pulled. Homeowners who try to skip this get a stop-work order, and the job stalls until the windows are spec’d and replaced properly.
Pricing for Window Replacement in Agoura, CA
Here are the ranges we quote on Agoura jobs every week:
- Insert window replacement: $450-$900 per opening
- Full frame replacement (standard size): $900-$1,600 per opening
- Full frame replacement (oversized or fire-exposed elevation): $1,400-$2,400 per opening
- Energy-efficient upgrade (full frame, dual-pane low-E argon): $800-$1,800 per opening
- Storm window replacement: $350-$800 per unit
What moves the number in Agoura is almost always the VHFHSZ glazing requirement. A south- or west-facing window that faces open space or a canyon needs multi-pane tempered or fire-resistant glass, and that costs more than a standard dual-pane. Homeowners who get an estimate without that spec are getting a number that won’t survive plan check. We quote the code-compliant version from the start, so there are no surprise line items on the bill.
Call (888) 635-0804 for a free estimate. We’ll send a uniformed technician out to measure every opening, show you manufacturer lines side by side on paper, and give you a written line-item quote before you commit to anything.
We Also Serve Cities Near Agoura
Along with Window Replacement in Agoura, our crews cover Parkway, Arden-Arcade, Ladera Heights, and Commerce. If you own a home in any of those communities, we bring the same VHFHSZ knowledge and the same written warranty registration to every job. Call (888) 635-0804 and a live person will set it up.
Serving Agoura, CA - Our Local Coverage Area
We’re based in the Agoura 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 Agoura
Because all of Agoura Hills lies within a Very High Fire Hazard Severity Zone, Los Angeles County now requires any window in a fire-exposed elevation to be multi-pane tempered or fire-resistant glazing when you pull a permit for an addition or re-roof. That’s a trigger most contractors a few miles east toward the Valley never see, so they don’t spec for it. We do, because we pull Agoura permits regularly. Window Replacement done to code the first time keeps your permit moving. Call (888) 635-0804 if plan check just flagged your project.
In most cases, no. 1980s-era dual-pane windows predate the VHFHSZ fire-glazing requirements and are not considered compliant on fire-exposed elevations if a permit triggers a review. If you’re not pulling a permit, they can stay until they fog or fail, but they do not meet current code for any new work. We can evaluate your specific elevations and tell you exactly which windows are code-mandated and which ones can wait. That’s the whole point of this page: don’t pay for a full facade replacement when only two elevations need it.
If the fog is between the panes, the IGU seal has failed and the entire glass package needs replacement. You don’t always need a full window, but you do need a new sealed unit. In some Agoura homes where the sash frames are warped from Santa Ana stress, a full sash replacement is the better long-term call. A technician can tell you which applies after a 20-minute look. Estimates are free. Call (888) 635-0804.
It depends on the association, but many Agoura Hills HOAs approve casement units because they seal tighter against wind and meet VHFHSZ glazing standards more readily. We’ve handled plenty of these approvals and can supply the drawings and manufacturer specs the architectural review committee wants. The earlier you involve us, the fewer revision rounds you’ll pay for.
South-facing frames on Agoura homes take direct sun all summer, which expands the aluminum or vinyl. When Santa Ana winds hit with sustained gusts and the temperature swings hard at night, the frame contracts and the wind stress racks the corners. The result is a window that binds only when the wind blows. That’s a structural frame issue, not a glass issue, and it usually means full frame replacement. Call (888) 635-0804 for an exact quote, and we’ll tell you if any of those elevations are fire-exposed and need the VHFHSZ-compliant glass too.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Agoura and the surrounding communities since 2008.