Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Door Installation Across North Hills
Door installation in North Hills means dealing with a housing stock that survived the 1994 Northridge earthquake, and that survival left marks. Most of the stucco ranch homes between Sepulveda Boulevard and Hayvenhurst Avenue still carry some degree of frame racking from that morning, even if the owners never noticed. Our Door Installation crews begin every North Hills job with a frame-square inspection, because a door that looks like a simple swap often isn’t. If you’re near Nordhoff Street, the 91343 zip, or anywhere in the North Hills East neighborhood, call (509) 265-6387 and we’ll measure, document, and price the work in writing before anything gets ordered.
Why Sightline Windows & Doors Is North Hills’s Preferred Door Installation Company
What sets us apart in North Hills is not a slogan. It’s a document. Every engagement begins with a measured survey of the existing opening, and that survey becomes the written quote. The price cannot change from that document unless the scope changes in writing. Sonia Raman, who leads Sightline Windows & Doors, built the Haven Standard around that principle in 2012, and it has governed more than 18,000 openings since.
Homeowners here respond to evidence, not enthusiasm. When we find a jamb that’s 3/8″ out of square, we show you the reading. When a threshold plate has rusted screws, we photograph them and include the photo in your job record. That documented photo record is standard on every visit, not an upgrade. Our technicians are background-checked, uniformed, and identified by license number before they arrive, which is Haven Clause 3. And if something isn’t done right within the first year, the 365-Day Done Right Promise means we make it right. That’s written in, not offered as a courtesy.
North Hills homeowners read three-star reviews before they call. We respect that. We’d rather show you a written scope and a photo record than tell you how long we’ve been around.
Our Door Installation Services in North Hills

North Hills homes run the range from original 1950s aluminum sliders to rushed mid-1990s builder-grade replacements. Here’s what we actually install, and why each one matters in this specific housing stock.
Entry Doors
A front door in North Hills has to do two jobs: close square and stay closed. We find a lot of originals that do neither. The 1960s-era stucco ranches off Woodley Avenue and the blocks around North Hills Community Park often have door jambs that shifted permanently in 1994. We re-square the rough opening before hanging anything, which means the new door won’t bind at the top hinge corner or rub the strike plate within six months the way a straight swap would. Entry door installation in North Hills runs $1,400 to $3,200 for a standard single door with a steel or fiberglass slab, excluding glass and hardware upgrades.

Hurricane-Proof Front & Entry Doors
North Hills is inland, so nobody here thinks about hurricane doors. Then the Santa Ana winds come through the Sepulveda Pass, and a hollow-core door rattles in its frame all night. Impact-rated doors from PGT and CGI are rated for design pressures that make today’s wind gusts look like a breeze by comparison. They’re also a practical choice for North Hills because they don’t rack. The laminated glass and reinforced frame hold square even when the wall studs around them flex. Hurricane-rated entry door installation here typically runs $2,200 to $5,500 depending on glazing area and frame type.

French & Double Doors
French doors are the most unforgiving installation in North Hills, because they demand two slabs that meet perfectly in a rough opening that may have moved. If the opening is 1/4″ out of level, the active door will drag or the inactive door won’t latch. A lot of the mid-century ranches north of Roscoe Boulevard have covered patios where we see surface-mounted French door retrofits that were never properly flashed. We specify stainless hinges, a continuous sill pan, and frame anchors that don’t depend on the old studs being straight. French door installation in North Hills generally runs $2,800 to $6,500 for a pair with Low-E insulated glazing.

Replacement Doors
Replacement doors in North Hills are rarely as simple as the word implies. We routinely pull out mid-1990s builder doors whose uncoated steel screws have rusted to nothing in the valley’s overnight condensation, leaving loose threshold plates and sagging slabs. The replacement that works here is a Therma-Tru or ES Windows unit with an adjustable sill and compression weatherstripping that can tolerate the 40-degree overnight temperature swings that make aluminum frames contract and stick. Expect $1,200 to $2,900 for a standard replacement slab with frame and hardware, installed.

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.
Before
AfterTrusted Brands We Service in North Hills
We specify from eight manufacturer lines, but the ones that come up most often in North Hills are Therma-Tru for replacement entries, PGT for impact-rated front doors, and CWS for custom double door assemblies. Each is matched to the opening’s exposure, not to what’s in stock. If you’ve had a specific model quoted by another company, bring us that written estimate. We’ll review it line by line at no charge, including the hardware spec, because cheap hinges and uncoated screws are the first things to fail in this climate.
Common Door Installation Problems We See in North Hills Homes

- Unremediated seismic racking. After the 1994 Northridge quake, a lot of North Hills door frames were shimmed to make the old door close again, and the shims are still in there. A door that swings open or drifts closed on its own is a reliable tell. A straight swap into that opening will fail the same way within a year.
- Corroded aluminum slider tracks. Original single-pane aluminum sliders from the 1950s through 1970s were never meant to sit in sprinkler overspray for five decades. The bottom track corrodes, the rollers seize, and the door sticks. We see this constantly in the homes along Rayen Street and the blocks between Sepulveda and Woodley.
- Rusted hardware from valley condensation. The overnight temperature drop in the San Fernando Valley puts condensation on uninsulated metal parts. Builders-grade mid-1990s replacement doors used uncoated steel screws that rust through in a few years. Threshold plates come loose, the slab drops, and the door rubs.
- Hollow-core doors that transmit heat. A deep inland valley home in North Hills hits 105°F in August. An uninsulated hollow-core entry door on the west side of a home off Nordhoff Street is basically a radiator. Low-E, dual-pane, insulated slabs change the indoor temperature and the power bill.
Pricing for Door Installation in North Hills, CA
Door installation pricing in North Hills follows a narrow band once you account for the frame work. A standard entry door starts around $1,400 and runs to $3,200. French or double doors run $2,800 to $6,500. Hurricane-rated entry doors are $2,200 to $5,500. If the frame needs re-squaring work, which is common here, that adds $150 to $450 depending on how far out of plumb the opening is. The gap between our price and a handyman’s price is usually in the things you can’t see: the sill pan, the stainless hardware, the flashing detail, and the frame work that keeps the door square for decades instead of months. Call (509) 265-6387 for a written estimate. There is no charge, and you keep the survey.
We Also Serve Cities Near North Hills

Our crews regularly work in North Hills‘ neighboring communities, including Northridge, Van Nuys, Encino, and Sherman Oaks. Each area has its own housing patterns and failure modes, so we never carry assumptions across the city line. If you’re on the edge of North Hills and want to confirm coverage, call (509) 265-6387.
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 - Door Installation in North Hills

A door that moves on its own is almost always a sign that the jamb is out of plumb, and in North Hills that usually traces back to the 1994 Northridge earthquake. The frame shifted, someone shimmed the door to close, and the shims have now settled or rotted. The fix is to re-square the rough opening, not to add more shims. Call (509) 265-6387 and we’ll take frame readings and show you what we find.
No, but the reasons to buy one here are practical, not regulatory. Impact-rated doors from PGT or CGI don’t rack when the wall studs around them flex, which matters in a housing stock that has already been through one large earthquake. They also seal tightly against Santa Ana wind and valley dust. Expect $2,200 to $5,500 installed. Call (509) 265-6387 for an exact quote.
It depends on what’s under the sill. Most of the time in North Hills, the original sill has corroded from fifty years of sprinkler overspray, and the wood sub-sill beneath it is soft. Installing over it would trap moisture and fail fast. We’ll tell you what the sill reading shows before we price anything.
Because a handyman quote usually skips the frame work, uses uncoated hardware, and omits the sill pan and flashing. In this climate and this housing stock, those are the exact components that fail. You pay once for the cheap install, then again for the hinge replacement, the weatherstripping, and ultimately for the full install our crew should have done the first time. The written quote from Sightline includes the full scope.
A standard install assumes the rough opening is square and the surrounding studs are straight. A North Hills earthquake-safe install verifies both with measurements before anything is ordered, re-squares if needed, and uses fasteners and framing anchors that tolerate movement without failing. That’s the difference between a door that closes with one finger and one that needs a shove after the next temblor.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving North Hills under the Haven Standard since 2012.










Before
After
Before
After