Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows & Doors Across Northridge
Impact window and door replacement in Northridge is rarely a simple swap. Homes here carry the memory of the 1994 earthquake in their framing, and thousands of post-quake rebuilds now have rough openings that look square but aren’t. That changes how units must be measured, shimmed, and sealed. TruePane Windows & Doors works Northridge every week, and we know what to expect before we pull the first trim board. Call (888) 635-0804 for a free estimate from a crew that understands this valley’s building quirks.
Why TruePane Windows & Doors Is Northridge’s Preferred Impact Windows & Doors Company
Northridge homeowners call us because we treat post-quake framing as the starting point, not an afterthought. Dale Kessler founded TruePane with a rule that still governs every install: if the pane is not true, the job is not done. That matters more here than almost anywhere else in the San Fernando Valley. A window set into a steel-plated rough opening without careful shimming will bind in July and leak in January, and the homeowner will feel it for years.
Our technicians are background-checked, uniformed, and trained as apprentices into journeymen. We don’t send salespeople with a pitch deck. We send a glazier who measures every opening twice, shows you manufacturer lines side by side on paper, and registers both warranty layers in writing before leaving your driveway. Northridge customers on acreage lots, near California State University Northridge, and throughout 91324 tell us the same thing: they want someone who answers the phone and stands behind the work. We do both.
Our Impact Windows & Doors Services in Northridge
We’re the company to call for Impact Windows & Doors on homes where the framing has a story. Every service below is scoped for Northridge’s post-quake building reality, not a generic suburban template.
Hurricane Impact Windows
Impact-rated windows in Northridge do double duty. They resist wind-borne debris, yes, but they also replace single-pane aluminum units from the 1990s that bake west-facing rooms every summer. On acreage homes with long western exposures, we spec low-E, low-SHGC glass so the argon fill doesn’t cook and fog within a decade. We measure irregular rough openings before ordering, because a custom-size mistake on a non-standard frame is an expensive one.

Impact Sliding Glass Doors
Sliders on Northridge acreage often sit near septic tanks or wells. County setback rules for those utilities affect where a door can go, and many pre-1994 sliders predate those codes entirely. We re-scope door placement around drainage and utility clearances before quoting, then order impact-rated sliders that fit the actual opening, not the nominal one printed on the original plans.

Impact Entry & French Doors
On one home off Balboa Boulevard, our crew pulled a 1996-era aluminum slider whose flashing tape had long since cracked, only to find the rough opening had been rebuilt with steel plates and sister-framing instead of a full header. We had to shim the new impact-rated units around irregular framing, using a custom jamb extension and resealing with fresh flashing tape. The homeowner finally stopped feeling the draft that had plagued that room every summer. That’s the kind of job we do in Northridge regularly.

Impact Garage Doors
Garage doors on older Northridge tract homes are often the largest opening on the house and the least protected. An impact-rated garage door ties the whole envelope together, especially on homes rebuilt after 1994 where the original door was never upgraded. We measure the opening for twist and deflection before ordering, because a door that fights a warped header will chew through rollers and springs.

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 Northridge
We’re an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, and CWS. That means we can quote Northridge homeowners side by side on paper, in writing, without steering you toward whatever carries the biggest margin. We stock common replacement parts for these lines locally, which shortens turnaround when a latch fails or a roller wears out. You see exactly what you’re buying, with warranty durations stated and registered before we leave.
Common Impact Windows & Doors Problems We See in Northridge Homes
- Post-quake rough openings that aren’t square. Sister-framed or steel-plated headers from 1994-era repairs often deviate from true by a quarter inch or more. Standard impact windows installed without careful shimming rack, bind, and stress seals until they fail.
- Fogging and seal failure on west-facing glass. Northridge summers routinely hit 105-110°F, and west-facing windows without low-E coatings absorb extreme UV and thermal stress. Argon-filled panes can fog within a decade on these exposures.
- Setback conflicts on acreage lots. County-inspected septic and well clearances force door and window placement to work around utility lines. Many pre-code sliders and French doors in Northridge must be re-scoped before replacement.
- Flashing failures on post-quake rebuilts. Emergency-permit work in the mid-1990s often used flashing tape that has long since cracked and peeled. Water intrusion behind the trim leads to rot, mold, and failed seals that show up as drafts and rattles.
Pricing for Impact Windows & Doors in Northridge, CA
Impact window replacement in Northridge typically runs $1,200-$2,800 per opening for standard sizes, including installation and new flashing. A full-home retrofit on a 1950s ranch with 10-14 openings usually lands between $18,000 and $38,000. Impact sliding glass doors run $3,800-$7,500 depending on width and setback re-scoping. Impact entry doors start around $4,200. Northridge acreage homes with non-standard openings or seismic retrofit framing add cost, and we quantify that before you sign. Call (888) 635-0804 for a free estimate with numbers in writing.
We Also Serve Cities Near Northridge
TruePane covers the broader San Fernando Valley from our Northridge work to homes in Chatsworth, Canoga Park, North Hills, and Encino. If you’re in those neighborhoods or anywhere nearby in the 91324 ZIP, the same crews and the same guarantees apply. Learn more about our work in this area on our Impact Windows & Doors in Northridge page.
Serving Northridge, CA - Our Local Coverage Area
We’re based in the Northridge 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 - Impact Windows & Doors in Northridge
Thousands of Northridge homes rebuilt after 1994 used emergency permits with sister-framed or steel-plated rough openings instead of full header replacement. Those openings look square but often aren’t, so modern impact windows must be custom-shimmed around irregular framing or they’ll bind and stress seals. We measure every opening twice and account for this before ordering. Call (888) 635-0804 to have your home checked.
Yes. Northridge acreage lots with septic tanks and wells are subject to county setback rules that dictate how close a new door can sit to those utilities. Many pre-1994 sliders and French doors were installed before current codes, so a replacement often needs re-scoping. We review setback requirements before quoting. Call (888) 635-0804 for a free assessment.
Northridge sits deep in the inland valley, where summer temperatures hit 105-110°F and UV exposure is extreme. West-facing insulated glass without low-E coatings and a low Solar Heat Gain Coefficient fails fast, and argon gas leaks out as the seal degrades. We spec glass suited to this specific climate. Call (888) 635-0804 and we’ll show you what’s failing and why.
Yes. Detached ADUs and shop buildings on Northridge acreage require county permits for window and door work, and we pull those permits and schedule the inspections. Impact-rated units on outbuildings are common here, especially where the structure faces the same western sun and wind exposure as the main house. Call (888) 635-0804 to discuss your outbuilding.
Impact-rated units use laminated glass and reinforced frames that resist wind-borne debris and extreme pressure. But the real difference for a 1990s post-quake rebuild in Northridge is the install: impact windows are heavier and require precise shimming around irregular openings so the frame stays true. A standard window in a steel-plated opening will rack and fail. Call (888) 635-0804 for a quote that accounts for what’s behind your trim.
Written by Dale Kessler, Owner at TruePane Windows & Doors. Serving Northridge and the San Fernando Valley with done-right workmanship since 2008 of combined glazing heritage.



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