Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom Windows & Doors Across Northridge
Custom windows and doors in Northridge usually need more than a stock-size replacement. The 1994 Northridge Earthquake left this city with thousands of rebuilt homes whose rough openings were patched under emergency permits, not rebuilt to standard dimensions. That means the opening that looks square on the outside is often irregular inside the jamb. Our Custom Windows & Doors team measures every opening twice and orders units sized to what’s actually there, not what the blueprint says should be there. If you’re dealing with fogged glass, a slider that binds in July, or a door that won’t seal against valley heat, call (888) 635-0804 for a free estimate.
Why TruePane Windows & Doors Is Northridge’s Preferred Custom Windows & Doors Company
We’ve worked on enough post-quake rebuilds in Northridge to know what hides behind the trim. Contractor-grade aluminum sliders from the mid-90s are reaching the end of their service life all at once, and the framing behind them often carries sister-framing or steel plates instead of full header replacement. A crew that doesn’t know this will order a standard unit, force it into an irregular opening, and leave you with a sash that binds within three seasons. We size and shim around the quirk, not against it.
Dale Kessler founded TruePane on a rule that still governs every install: if the pane is not true, the job is not done. Every job is backed by the Done Right Promise and The Keystone Standard. Both manufacturer warranty layers get registered in writing, with durations stated, before our truck leaves your driveway. You’ll see the paperwork yourself. Background-checked, uniformed technicians show up when we say they will, measure twice, and quote manufacturer lines side by side on paper so you can compare what you’re actually buying.
We serve Northridge from our Los Angeles office, with crews dispatched locally. A live person answers the phone 24 hours a day, 7 days a week. Not a voicemail tree, not a callback form.
Our Custom Windows & Doors Services in Northridge
Northridge’s housing stock is a mix of 1950s-1970s ranch and split-level tract homes plus a wave of mid-90s earthquake rebuilds. That means we see both original wood-frame openings and emergency-permit repairs on the same block. Our services in Northridge are built around what we actually find in these houses.
Custom Shape Windows
Post-quake rough openings in Northridge rarely match a stock size. We order custom shape windows cut to the exact measurements of your opening, not the nearest catalog option. Arched, trapezoid, circle-top, and angled windows all get fabricated to spec, with shimming planned around any irregular framing our techs find inside the jamb.

Oversized Glass Panels
Northridge’s flat valley lots often feature large picture windows and ranch-style sightlines that call for oversized glass. That’s a real structural decision here, not an aesthetic one. High-tension loads, tempered glass requirements, and Title 24 energy compliance all have to be calculated for the specific opening. Our team handles oversized panels with the same sizing discipline we bring to every custom job, and we’ll tell you plainly if a panel needs structural review before we order it.

Architectural Grilles & SDLs
A lot of Northridge homeowners rebuilding after the quake chose basic windows to save money, then lived with the plain look for 25 years. Architectural grilles and simulated divided lites (SDLs) bring back the character of the original 1950s and 1960s ranch windows without replacing the entire frame. We install them on existing sashes or as part of a full custom window replacement, matched to the grid pattern you actually want, not a default spec.

Commercial Storefront Glazing
Northridge’s commercial corridors along Reseda Boulevard and Nordhoff Street include storefronts that date back decades, some rebuilt after 1994 with whatever glazing was available at the time. We replace and service aluminum storefront systems, entrance doors, and glazing for local businesses. Same standards as our residential work: measured twice, ordered once, installed true.

Curtain Wall Systems
For larger commercial properties in Northridge, curtain wall systems need engineering review, wind-load calculations, and precision installation. We handle the glazing side with the same care, coordinating with structural requirements and Title 24 energy standards. If a curtain wall section has failed, we’ll tell you what can be repaired and what needs full replacement, in plain terms.

Impact Windows and Doors
Northridge sits in earthquake country, and while seismic retrofitting is a separate trade, impact-rated windows and doors add a layer of protection against the kind of flying debris and structural stress a major quake produces. We install PGT and CGI impact lines, both of which carry the documentation homeowners in the valley increasingly want when they’re upgrading a post-quake rebuild.

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, and for Northridge homeowners we draw most often from, PGT, CGI, and Ply Gem. Why those? Milgard’s vinyl fusion-welded frames hold up to the valley’s 105°F+ summer days without racking the way the old aluminum sliders did. PGT and CGI are the impact-rated lines homeowners ask about when they’re thinking about the next big one. And Ply Gem offers solid mid-range options for budget-conscious replacements. We stock common parts locally and can quote any of these lines side by side on paper so you see the price difference before you commit.
Common Custom Windows & Doors Problems We See in Northridge Homes
- Fogged dual-pane glass within 15-20 years. Northridge’s inland valley heat routinely hits 105-110°F in summer, which accelerates seal failure in insulated glass units. South and west exposures lose their argon fill quickly, and once the fog appears, the window’s insulating value is gone.
- Sashes that bind or won’t close flush. Post-quake rough openings were often repaired with sister-framing or steel plates instead of a full header replacement. Over 25-30 years, that framing shifts. The opening looks square on the outside, but inside the jamb it’s off by a quarter inch or more.
- Mid-90s aluminum sliders that rack in the heat. The basic dual-pane sliders installed during the post-quake rebuild wave expand and contract with valley temperatures. Frames warp, weatherstripping fails, and conditioned air leaks out. These windows were cheap in 1996 and are expensive now in cooling costs and comfort lost.
- Original 1950s-1970s windows still in place. A significant share of Northridge homes still have their original single-pane or early dual-pane windows. Most of these don’t come close to current California Title 24 (Climate Zone 9) energy standards, and they’re the primary reason some Northridge rooms feel like ovens by 3 p.m.
Pricing for Custom Windows & Doors in Northridge, CA
Custom window work in Northridge runs on a different math than stock replacement. Custom shape windows typically start around $900-$1,800 per unit installed, depending on size and glazing. Oversized glass panels run $1,500-$4,000 or more, reflecting the tempered glass and structural review they often require. Architectural grilles and SDLs add $150-$450 per window when ordered as part of a replacement. Full custom retrofit jobs on a typical Northridge ranch run $8,000-$25,000, depending on window count and whether we’re working around quake-repaired framing. Every estimate is free, written, and line-itemed before any work is scheduled. Call (888) 635-0804 to get exact numbers for your house.
One thing worth saying plainly: the coastal-spec and inland-spec versions of a job can differ by 20-30% in materials. Cheap aluminum frames fail in a decade here. Fusion-welded vinyl with the right low-E coating lasts decades. The cheaper bid costs more by year ten. We quote both specs so you see the gap on paper.
We Also Serve Cities Near Northridge
Our crews serve Northridge and the surrounding San Fernando Valley communities, including Chatsworth, Canoga Park, North Hills, and Encino. If you’re a few blocks outside the Northridge line, call us anyway. If we’re already in the neighborhood, the estimate visit is just as free.
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 - Custom Windows & Doors in Northridge
Fog between panes means the insulated glass unit’s seal has failed and the argon or krypton gas fill has escaped. In Northridge, this happens earlier than in coastal communities because summer temperatures routinely exceed 105°F, which stresses the seal material and accelerates failure. South and west-facing windows fail fastest. The fix is replacing the glass unit or the entire sash, not just wiping the surface. Call (888) 635-0804 and we’ll assess whether the unit can be reglazed or needs full replacement.
Post-quake rebuilds often used emergency permits that allowed sister-framing or steel plating instead of full header replacement. Those repairs shift over decades. An opening that measures square on the exterior face can be irregular inside the jamb by a quarter inch or more, which is enough to make a stock window bind. We measure from multiple points inside the jamb, not just the outside trim, and order custom sizes when the opening won’t accept a standard unit.
Fusion-welded vinyl with low-E glass holds up better in Northridge’s inland valley climate than aluminum or wood. Vinyl doesn’t rack the way mid-90s aluminum sliders did, and it doesn’t need the repainting that wood demands under heavy UV. We specify low Solar Heat Gain Coefficient (SHGC) glazing on south and west exposures, which cuts the afternoon heat spike in rooms that face the strongest valley sun. Call (888) 635-0804 for a material comparison specific to your window openings.
Almost certainly not. The basic dual-pane sliders installed during the post-quake rebuild wave don’t meet current California Title 24 (Climate Zone 9) energy standards. Many were contractor-grade aluminum with no low-E coating and no argon fill. That means they’re losing conditioned air and letting valley heat in. Upgrading to code-compliant glazing isn’t a regulatory checkbox. It’s the difference between a room that’s livable at 4 p.m. in August and one that isn’t. We’ll show you the SHGC and U-factor numbers on paper before you commit.
Yes, in most cases. We don’t rebuild the wall. We order a custom window sized to the actual opening, including any irregular framing inside the jamb. Our techs shim and flash around the existing structure, add pressure-treated shims where needed, and seal the unit properly against valley heat and dust. You keep the wall, you lose the draft and the binding sash. The estimate is free, and we’ll tell you if structural work is required before we order anything.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Northridge and the San Fernando Valley.



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