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AfterFast, Reliable Window Installation Across North Hills
Window installation in North Hills carries a complication most Valley neighborhoods don’t share: the 1994 Northridge earthquake left a lot of rough openings out of square, and a “standard” replacement often isn’t standard at all. Our crews work the 91343 ZIP every week and bring extra shims and a framing square on every call because we expect the unexpected in these homes. If your windows are original to a 1950s or 1960s tract house, they’re well past their service life, and the question is rarely whether to replace them but how to do it without chasing problems the last installer left behind. Call (888) 635-0804 for a free estimate, and we’ll measure every opening twice before we quote.
Key takeaways:
- North Hills homes built roughly 1950-1975 typically still carry original single-pane aluminum sliders, and most are due for replacement.
- Within a mile of the 1994 epicenter, rough openings are routinely an inch or more out of square, which changes how the job gets quoted and done.
- A typical window installation in North Hills runs $850-$2,400 per opening depending on size, frame material, glass package, and what we find when the old frame comes out.
- We write framing corrections into the contract before we touch the wall. No surprise line items, no vague allowances.
Why North Hills Homeowners Call TruePane Windows & Doors First
North Hills sits close enough to the 1994 Northridge epicenter that the ground motion here was some of the strongest in the entire region. That single fact shapes more of what we do in this neighborhood than any other. Homes that looked fine for thirty years hide racked rough openings, sagging headers, and moisture damage behind stucco that was patched after the quake but never properly re-squared. A franchise install crew that treats a North Hills job like a Reseda job will fight the opening all day and still leave a window that binds in July. We’ve been doing this long enough to know better, and Dale Kessler’s rule stays on the whiteboard: if the pane is not true, the job is not done.
Our technicians are background-checked and uniformed, and they work in your home the way they’d work in their own mother’s. We’re an authorized installer for more than a dozen manufacturer lines, including, PGT, and CGI, and we quote those lines side by side on paper so you see exactly what you’re buying. Every job is covered by our Done Right Promise and The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, before the truck leaves your driveway. A live person answers the phone 24/7 at (888) 635-0804. Not a voicemail tree, not a regional call center, not a callback form.
Our Window Installation Services in North Hills
We install, replace, and service every common window type in North Hills homes. The three we handle most often in 91343 are Window Installation for sliding windows, double hung, and fixed picture units, because those are what the postwar tract builders put in almost every house from 1950 through 1975. Here’s what that work looks like.
Sliding Windows
Original aluminum sliders are the default window in North Hills tract homes, and after fifty or sixty Valley summers they’re tired. The 30-40°F overnight temperature swing degrades weatherstripping, warps the thin aluminum frames, and leaves homeowners with sash runs that stick or rattle. A quality vinyl or fiberglass slider with low-E glass and a fusion-welded frame eliminates most of that, but the install is where it gets interesting. If the rough opening is racked from the quake, which it often is here, we re-shim the jamb before setting the new unit so the sash tracks level and true.
Single & Double Hung Windows
Double hungs are a common upgrade for North Hills homeowners who want better ventilation than sliders offer. The catch in this neighborhood is the header. Decades of Valley heat can sag an undersized or warped aluminum header just enough that brand-new sashes bind when you try to raise them. We check every opening with a four-foot level before we order, and if the header needs correction, that work goes in the quote in writing, not as a surprised phone call mid-job.
Fixed & Picture Windows
Fixed picture windows are popular on the front elevations of 1960s and 1970s North Hills ranch homes, and they’re usually enormous by modern efficiency standards, which is a problem when they’re still single-pane. A replacement picture unit with low-E triple glass and argon fill turns a wall that radiated heat into one that holds conditioned air, but sealing matters just as much as the glass. Failed waterproofing from quake-patched stucco cracks is the quiet killer here. We inspect the rough opening for rot before we set the new frame, because a new window installed into a wet, rotted jamb fails within a few seasons.
Casement & Awning Windows
Casement and awning windows operate on hinge hardware rather than sliding tracks, and in a square opening they’re among the tightest-sealing windows made. In a racked North Hills opening, they’re a test. A casement crank will bind and eventually strip if the frame isn’t shimmed plumb, which is exactly why our techs carry a full framing square and a bag of shims on every single call in this ZIP. Done correctly, these windows hold up beautifully to Valley heat and give you full ventilation without a center rail.
What happens when you call
- 1
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’re an authorized installer for more than a dozen manufacturer lines, and the three we quote most often for North Hills homes are CGI for Impact Windows & Doors - North Hills, PGT for energy performance, and Milgard for value in tract-home replacements. We bring samples and quote sheets so you can compare frame materials, glass packages, and U-factors on paper, not over the phone. Local inventory and direct manufacturer relationships mean we don’t wait three weeks for a common replacement sash when the original has fogged and failed. Call (888) 635-0804 and we’ll walk you through what makes sense for your house and your budget.
Common Window Installation Problems We See in North Hills Homes
- Quake-racked rough openings: Within a mile of the 1994 Northridge epicenter, we routinely find window openings an inch or more out of square, even in houses that look structurally sound. This is a North Hills-specific condition, almost never seen at the same rate in Reseda or Granada Hills. It means every job gets measured with a framing square, and shimming is written into the scope before work starts.
- Failed waterproofing behind patched stucco: Hairline cracks from the quake got sealed on the surface but sometimes let moisture behind the stucco decades ago. By the time we pull an original window, the rough opening can be soft enough to crumble. We replace rotted jamb stock and install proper flashing before the new unit goes in, because caulking the outside of rotted wood solves nothing.
- Fogged glass from seal failure: The Valley’s day-night temperature swing expands and contracts the seal on insulated glass units until they fail, which is why so many 91343 homes have permanently hazy windows. Glass-only replacement can work if the frame is sound, but on postwar aluminum frames, the frame itself is usually part of the problem. We’ll tell you honestly which route makes sense.
- Warped aluminum frames from Valley heat: North Hills regularly sees summer highs above 100°F while coastal LA sits in the 70s. Fifty years of that heat, combined with 30-degree overnight drops, warps thin aluminum frames enough that sashes bind, locks misalign, and air leaks through gaps weatherstripping can’t close. Vinyl and fiberglass replacements handle the thermal movement far better.
Pricing for Window Installation in North Hills, CA
Window installation in North Hills runs higher in labor than in neighboring Valley cities, and there’s a reason: the quake-racked openings. Straight swap in a square opening takes an hour or two. A racked opening takes re-shimming, possibly jamb rebuilding, and the patience to get the new frame plumb and level, and that’s labor you’re paying for either way. Here’s what we see in 91343:
- Sliding window replacement: $850-$1,600 per window for a standard vinyl unit with low-E glass.
- Single or double hung replacement: $950-$2,100 per window depending on size and frame material.
- Fixed or picture window: $1,100-$2,800 per window, more for oversized elevations common on ranch homes.
- Casement or awning window: $1,000-$2,400 per window, with hardware quality affecting the range.
- Framing correction, shimming, or jamb rebuild: $150-$450 per opening when needed, written into the contract before work starts.
Every quote is line-itemed, in writing, and we walk you through it on paper. Call (888) 635-0804 to schedule a free estimate. Senior and veteran homeowners receive a permanent 5% discount, and we stand behind every job with the Done Right Promise.
We Also Serve Cities Near North Hills
TruePane crews work throughout the San Fernando Valley, and a lot of what we learn in one neighborhood carries to the next. We handle window installation in Northridge, San Fernando, Van Nuys, and Encino, bringing the same framing square and the same inspection-first discipline to each job. For more detail on the full scope of our work, see our Window Installation in North Hills city page or call the team at (888) 635-0804.
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 - Window Installation in North Hills
North Hills sits within a mile of the 1994 Northridge epicenter, which means a significant share of its post-WWII homes absorbed the hardest ground shaking in the region. Rough openings here are routinely an inch or more out of square, apparently from the quake and never fully re-squared, and re-shimming an opening to true takes time and skill that a square opening doesn’t require. The labor premium you’re seeing is actually the cost of doing the install correctly in a racked frame, not a pricing tactic. Call (888) 635-0804 and we’ll tell you exactly what your openings need and quote it in writing.
Yes, window replacement in Los Angeles generally requires a permit, and North Hills is in Los Angeles city jurisdiction. When walls are opened for a full-frame replacement, the work triggers current energy code requirements: replacement windows must meet the California Energy Commission’s U-factor and SHGC minimums, and tempered safety glass is required in certain locations, including windows adjacent to doors and low sill heights. We pull the permit, schedule the inspection, and make sure your job passes on the first visit. Call (888) 635-0804 to talk through what your specific house will require.
Sometimes glass-only replacement is the right call, but on original 1950s sliders it rarely is. The aluminum frames are typically warped from decades of Valley heat, the weatherstripping has failed from the day-night temperature swings, and the rough opening is often racked from the 1994 quake. Glass replacement into a warped, out-of-square frame leaves you with new glass in a window that still leaks air and binds. We’ll inspect the openings and give you an honest recommendation, with no obligation to replace the whole window if glass-only makes sense. Call (888) 635-0804 for a free estimate.
We inspect the opening before we quote, look for soft wood, termite trails, and quake damage, and write a replacement allowance into the contract when there’s any doubt. If we pull the old frame and find rotted jamb stock that wasn’t visible from the outside, we stop, show you the condition, and get your written approval on a fixed price for the repair before we touch anything else. This is the inspection-first discipline our Window Installation team is known for. No surprise line items on the final bill, and no work you didn’t approve.
For North Hills, a U-factor of 0.30 or lower is a good target for the frame and glass combined, and a SHGC around 0.25 or lower helps manage the intense Valley sun. These aren’t arbitrary numbers: a window meeting them will hold conditioned air in summer and cut the heat load on a house that regularly sees 100°F afternoons. Energy-Efficient Windows - North Hills with low-E glass and argon fill achieve these ratings in quality vinyl and fiberglass frames without jumping to the most expensive lines. We’ll show you rated options on paper, and our written quotes list the U-factor and SHGC for every window we propose. Call (888) 635-0804 to schedule a free estimate.
Call TruePane for Window Installation in North Hills
If your windows are original to your North Hills home, you’re living with the accumulated effects of 50-plus Valley summers and one very bad earthquake. You don’t need a sales pitch. You need a second-generation glazier’s crew that expects racked openings, carries shims and framing squares, and writes every correction into the contract before work starts. That’s what we do, every day, in the 91343 ZIP. Call (888) 635-0804 for a free estimate, and we’ll measure every opening twice, quote the work in writing, and stand behind it when the job is done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving North Hills and the San Fernando Valley.