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 North Hills
Impact window and door replacement in North Hills runs $1,300-$3,800 per opening, and the job takes one to two days in most cases. That range is real, not a teaser. What most North Hills homeowners don’t learn until after the first quote is that their 1950s-era rough openings are rarely square anymore, and that changes both the price and the method of a correct install. TruePane has worked enough homes in the 91343 ZIP to expect that before we ever set a ladder against your stucco. Call (888) 635-0804 for a free estimate, and we’ll walk the house with you before we quote.
Why TruePane Windows & Doors Is North Hills’s Preferred Impact Windows & Doors Company
We keep our estimates straightforward because North Hills homeowners have been burned before. Dale Kessler founded TruePane in 2008, but the standard on every job is older than that: if the pane is not true, the job is not done. That rule matters more in North Hills than almost anywhere in Los Angeles, because the 1994 Northridge epicenter was roughly a mile from here. Our crews have re-squared more post-quake openings in North Hills than we can count, and we stock extra composite shims on every truck that heads into 91343.
We’re an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, and ES Windows, and we put both warranty layers in writing before we leave your driveway. That’s The Keystone Standard: durations stated, both layers registered, no paper chase later. Our Done Right Promise covers the workmanship with the same plain language: if it’s not done right, we make it right. No arguing. A live person answers our phone 24 hours a day, seven days a week, because the kind of customer who lives in a North Hills tract home for thirty years wants to hear a voice, not a callback form.
Our Impact Windows & Doors Services in North Hills
North Hills housing stock runs to post-WWII single-story stucco and wood-frame construction, much of it built between 1950 and 1975. The original aluminum single-pane sliders and hollow-core doors are well past their service life. Our Impact Windows & Doors team installs and services every opening in the house, with an emphasis on the three areas that fail first in this ZIP.
Impact Sliding Glass Doors
Impact sliding doors get the hardest workout in North Hills. The 30-40°F swing between afternoon and night causes aluminum frames to expand and contract daily, which is why so many original sliders bind in the track by July. We replace them with fusion-welded vinyl impact systems that keep their shape through Valley summers and stay true when the Santa Anas push debris through the yard. A typical impact slider replacement in North Hills runs $2,800-$5,500 depending on panel count and opening size.

Impact Entry & French Doors
Front doors on North Hills tract homes are usually hollow-core, with aging hardware around a single cylinder lock. We install impact-rated entry doors with multi-point locking, steel or fiberglass skins, and laminated glass that holds together under impact. For side-yard and backyard entries, French doors get the same treatment. Expect $2,200-$4,800 for an impact entry door, and $4,000-$8,000 for a paired French unit, including squaring the rough opening.

Impact Garage Doors
A garage door is the largest opening in the average North Hills home, and on post-1950 builds it is often the most neglected. Reinforced impact garage doors in North Hills typically run $2,500-$5,200, hardware and reinforcement struts included. We won’t hang an impact door on a shifted jamb either. That is where the extra shims come in.

Wind Mitigation & Code Compliance
Because North Hills sits inside the LA County high-wind and seismic overlays, inspectors pay closer attention here than in flatter parts of the Valley. We pull permits when the scope requires it, schedule inspections, and walk the line between manufacturer installation codes and local amendments. If a previous owner did a patch job after the quake and never pulled a permit, we’ll flag it before it becomes a rejected inspection.

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 North Hills
We service and install CGI, CWS, and ES Windows product lines, among more than a dozen others. Since our LA hub is a short drive to North Hills, we can have replacement glass, rollers, hardware, and weatherstripping on a local job without waiting on a regional warehouse. Authorized installer status also means we register both warranty layers in writing, with durations stated, so there is no mystery later about what the manufacturer covers and what we cover.
Common Impact Windows & Doors Problems We See in North Hills Homes
- Fog between panes in older double-glazed units. That is seal failure, plain and simple. The argon leaked out, and the insulated glass unit lost most of its insulating value, which matters when North Hills sits above 100°F for weeks at a stretch.
- Racked rough openings from the 1994 Northridge quake. We see rough openings that are an inch or more out of square on homes that otherwise look fine. A standard pull-and-swap install won’t fix that. The framing has to be re-squared and re-shimmed before any impact product goes in.
- Warped aluminum frames and flattened weatherstripping. The daily thermal cycling in the Valley does chronic damage to metal frames from the 1960s and 70s. Drafty, loud, dusty, and hard to lock is the usual condition by year fifty.
- Original hollow-core doors with no impact rating. Wind-blown debris is one concern. Forced entry is the other. North Hills aging entry hardware often sits in a frame that has shifted enough to defeat the deadbolt’s throw.
Pricing for Impact Windows & Doors in North Hills, CA
Here is honest pricing for the North Hills market. Impact windows run $1,300-$2,800 per opening for standard sizes, and climb to $3,800 or more for oversized picture openings. Impact sliding glass doors: $2,800-$5,500. Impact entry doors: $2,200-$4,800. Impact French doors: $4,000-$8,000. Impact garage doors: $2,500-$5,200. The cost difference between a coastal-spec job and an inland-spec job exists in the hardware, glazing, and finish, and in North Hills you need the coastal spec because of the heat load and wind exposure, not salt air. Cheap inland hardware will corrode and bind here, and you’ll pay for it inside a decade.
What moves your number: how far out of square the rough openings are, whether the house has settled since the quake, trim replacement around stucco, and whether you want low-E laminated glass, which we recommend in this climate. Call (888) 635-0804 for a line-item quote. It’s free, it’s written, and it does not change once the job starts.
We Also Serve Cities Near North Hills
TruePane’s crews drive the same day into the neighborhoods that surround North Hills, including Northridge, San Fernando, Van Nuys, and Encino. The same team that knows 91343 construction habits serves the whole upper Valley, from the commercial corridors along Sepulveda to the tract blocks west of the 405.
Serving North Hills, CA - Our Local Coverage Area
We’re based in the North Hills 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 North Hills
Because the labor is different. Coastal installers pull an old frame out of a reasonably square opening and set the new one in. In North Hills, our crews routinely find rough openings that shifted an inch or more out of square during the 1994 Northridge quake and were patched but never re-squared. That means stripping the jamb, squaring the frame with extra shims, and often retrimming the stucco. It is a custom fit, not a swap, and the price reflects that. Call (888) 635-0804 for an exact figure, and we’ll show you what’s out of square before we quote it.
Open a window or slider and look at the reveal, which is the gap between the sash and the frame. If it is wider at one corner than the other, or the door leaves a triangle of light when closed, the opening is racked. Bowed casing, cracks radiating from window corners in the stucco, and locks that no longer line up with the strike plate are other signs. We check every opening with a framing square and a level before we quote. If yours is off, we’ll show you the measurements and explain exactly how we’ll correct it.
You can, and in many North Hills tract homes that is the right approach. When the rough opening is square and the existing frame is sound, we install a flush-mount or retrofit impact unit into the original frame. When the opening is racked from the quake, or the old frame is corroded, a full-frame replacement is the only way to get a true, plumb fit. We’ll tell you which one your house needs, and we will not push a full tear-out where a retrofit will hold.
For North Hills, aim for a U-factor of 0.30 or lower and an SHGC between 0.25 and 0.30. That combination keeps heat gain down during the 100°F afternoons without making the window a heat sink in the mild winter. We quote low-E laminated glass with argon fill as the standard for this ZIP, because a dark-tinted window with no low-E coating will turn your living room into an oven by four o’clock. Talk it through at (888) 635-0804, and we’ll put the exact glass package on paper.
A standard aluminum single-pane from the 1960s is weather-stripped out and warped by year thirty. A quality impact window with a fusion-welded vinyl frame and laminated low-E glass should carry a full twenty to thirty years in this climate, with the hardware being the first thing to wear. Both manufacturer warranty layers are registered in writing before we leave, and our own Done Right Promise covers workmanship if something slips. If the seal ever fails inside the manufacturer’s window, you have the paperwork to prove it.
North Hills sits close enough to the 1994 Northridge epicenter that no two rough openings are the same. The frame moved. The stucco covered it. Most replacement quotes never look at that. Ours does. Call (888) 635-0804 to schedule a free estimate, and we’ll send a background-checked technician to measure every opening twice, square it on paper, and hand you a line-item quote you can put a thumbtack through.
Written by Dale Kessler, Owner at TruePane Windows & Doors.



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