Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Windows & Doors Services in Lennox, CA
Window and door work in Lennox is different from anywhere else in Los Angeles County. The neighborhood sits directly under the LAX flight path, which means the homes here have spent decades learning what noise does to a household. We answer the phone at (888) 635-0804, and when a Lennox homeowner calls about a fogged dual-pane unit or a sliding door that rattles every time a 737 spools up on approach, the person on the other end knows the difference between an STC 28 and an STC 34 assembly. That matters here more than it does in Parkway or Commerce.
We offer window installation, door installation, window replacement, impact windows, energy-efficient units, sliding and patio doors, glass railing systems, and fully custom work. Every job includes the Done Right Promise and The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, before our truck leaves your driveway.
Key Takeaways
- Window and door work in Lennox is tied to the LAX Residential Sound Insulation program and STC-rated assemblies.
- TruePane has served local communities since 2008, led by second-generation glazier Dale Kessler.
- Both warranty layers registered in writing, workmanship guaranteed for 90 days, no paperwork fights.
- A live person answers the phone 24/7 at (888) 635-0804.
- Free estimates, upfront line-item pricing, and seniors and veterans save 5% on every job.
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.
Why Lennox Homeowners Choose TruePane Windows & Doors
Most window and door companies treat Lennox like a quick stop between Inglewood and Hawthorne. We treat it like a place where homes have specific problems. The post-war wood-frame houses between Hawthorne Boulevard and Prairie Avenue, and the duplex-heavy blocks south of Century Boulevard, were built when single-pane aluminum sliders were standard. Many of those units are still there. When they fail, the homeowner hears two things: the wind and the airport.
Our reputation in Lennox comes from solving the noise problem properly. We are an authorized installer for more than a dozen manufacturer lines, including, PGT, and CGI. That means we can quote side-by-side on paper: a Ply Gem dual-pane against a PGT impact unit against a Milgard thermally broken aluminum frame. The homeowner sees exactly what they are buying, with real STC and OITC ratings on the sheet. No vague promises about “quieter windows.” Numbers.
Every technician is background-checked and uniformed. Every opening is measured twice. And a live person answers the phone at any hour, because when a sliding door comes off its track at 11 p.m. and the marine layer is rolling in, you should not hear a voicemail tree.
Windows & Doors Services We Offer in Lennox
Window Installation
New window installation in Lennox often means working with rough openings cut for 1950s aluminum sliders and reframing them for modern dual-pane units. We measure, quote, and install with the opening checked twice before a single screw goes in. Learn more about our Window Installation in Lennox.

Door Installation
Front doors, back doors, and patio sliders in Lennox take a beating from salt air and daily use. We install entry systems, hinged patio doors, and sliding units that are set square the first time, so they do not bind in July. Learn more about our Door Installation in Lennox.

Window Replacement
Replacing windows in Lennox usually means removing single-pane aluminum and upgrading to dual-pane assemblies with real acoustic ratings. We handle the entire swap, including stucco repair around the frame where the old flange comes out. Learn more about our Window Replacement in Lennox.

Impact Windows & Doors
Impact-rated units do more than satisfy coastal building codes. They add mass, which helps with the flight path noise too. We install PGT and CGI impact windows and doors that hold up to debris and damp the low-frequency rumble from departures.

Energy-Efficient Windows
Lennox does not need extreme Low-E coatings for brutal winters, but the right glass package still cuts heat gain through west-facing stucco walls. We match the glass to the elevation and the sun path, not the marketing brochure.

Sliding & Patio Doors
Sliding doors in Lennox get heavy use on small lots where indoor-outdoor living space is precious. We replace worn rollers, realign tracks, and install new units that glide without rattling when the next wide-body comes over.

Glass Railing Systems
For duplex balconies, stair landings, and small patios, glass railing systems open up sightlines without adding visual bulk. We install frameless and semi-frameless systems with hardware rated for coastal exposure.

Custom Windows & Doors
When a Lennox home has an odd-sized opening or a homeowner wants a specific look, we build and install custom units. The rough opening does not dictate the design; the design dictates the framing work.

Neighborhoods We Serve in Lennox
We work throughout Lennox, and because our crews are scheduled locally from the Los Angeles office, most homeowners see a truck at the curb within a day or two of calling. These are the areas where most of our Lennox work happens:
- The residential blocks east of Inglewood Avenue, where 1940s duplexes predominate.
- The streets south of Century Boulevard toward 104th Street, including homes close to the airport boundary.
- Around Lennox Park and the blocks north toward Arbor Vitae Street.
- The west-side streets off Hawthorne Boulevard, where many RSI-upgraded homes are concentrated.
- The 90304 ZIP code area as a whole, including the mixed residential pockets near the county line.
Why Lennox’s Climate & Housing Affect Windows & Doors
Lennox sits two and a half miles from the ocean, and the marine layer is a constant. Mild temperatures mean thermal performance is rarely the first question a homeowner asks. The first question is almost always about sound. LA World Airports has run the Residential Sound Insulation Program here for years, and many homes have RSI-installed windows carrying specific STC ratings. When one of those units fails, or when a homeowner wants to match a newer window to the RSI standard on the rest of the house, the replacement has to meet or beat that acoustic benchmark.
The housing stock shapes the work too. Lennox is dominated by small post-WWII wood-frame rental homes and duplexes built between the 1940s and 1960s. Many still have original single-pane aluminum sliders that either predated the RSI program or were skipped by it. Compact lot sizes and stucco exteriors mean rough opening modifications are routine when upgrading to modern dual-pane units. And the salt air off the coast accelerates corrosion on aluminum frames and hardware, especially on west-facing elevations. We see it constantly: frames pitted white, rollers seized, latch mechanisms brittle. It is a Lennox signature.
Pricing for Windows & Doors in Lennox
What should a Lennox homeowner expect to pay? Here are honest ranges for common work in this market:
| Service | Typical Range in Lennox |
|---|---|
| Single window replacement (dual-pane vinyl) | $450 - $900 per window installed |
| Single window replacement (acoustic/STC-rated) | $700 - $1,400 per window installed |
| Patio sliding door replacement | $1,800 - $3,500 installed |
| Entry door replacement | $1,200 - $2,800 installed |
| Impact window (PGT or CGI) | $900 - $1,800 per unit installed |
| Full-home window replacement (small Lennox home, 8-10 windows) | $6,000 - $12,000 |
Every quote is line-item, fixed, and on paper before work begins. We do not change the number once the job starts. Seniors and veterans save 5% on every job, and there is a $50 discount on any repair over $250.
Service Area - Cities Near Lennox
While this page focuses on Lennox, our crews also serve nearby communities. If you are in Parkway, Arden-Arcade, Ladera Heights, or Commerce, we can schedule from the same local dispatch and honor the same warranties.
Serving Lennox, CA - Our Local Coverage Area
We’re based in the Lennox 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 About Windows & Doors in Lennox
Window replacement in Lennox typically runs $450 to $1,400 per window installed, depending on whether the unit is standard dual-pane or acoustically rated for the LAX flight path. Full-home replacements on the small post-war homes common here usually land between $6,000 and $12,000. Call (888) 635-0804 for a free, line-item estimate based on your specific openings.
Yes. RSI-installed windows carry specific STC ratings, and we can match or exceed that benchmark on any replacement. We quote manufacturer lines side by side on paper so you see the actual acoustic numbers, not just a sales claim. Call (888) 635-0804 to have your windows measured and matched.
No. Our pricing is fixed on paper before the first cut is made. The quote you approve is the price you pay, with no change orders and no surprise line items. That is the square deal, and it is in writing.
We handle permits when the scope requires them, which is common in Lennox when rough openings are modified or impact-rated assemblies are installed. We pull the permit, schedule the inspection, and make sure the job passes before we call it done. The Done Right Promise covers the workmanship regardless.
Most single-unit replacements are completed in one visit, usually within a day. Full-home window replacement on a small Lennox home typically takes two to three days, depending on how many rough openings need reframing. Sliding door swaps are almost always same-visit. Call (888) 635-0804 and we will give you an honest timeline for your specific job.
Call TruePane Windows & Doors in Lennox
If a window is fogged, a slider is rattling, or aluminum frames are corroding through, we are the call to make. A live person answers at (888) 635-0804, day or night. We will schedule a free estimate, measure every opening twice, and put both warranty layers in writing before the truck leaves. If the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors. Dale founded the company in 2008 as a second-generation glazier and has led work in communities across Southern California since 2008. He still keeps the founding rule on the whiteboard: if the pane is not true, the job is not done.
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Lennox Customers Say
"Our bay window had rotted at the sill and two other outfits wanted to talk us into a flat picture window instead. TruePane rebuilt the opening and matched the original look. Neighbors have knocked on the door about it."
- Gene A."Two entry doors. Showed up when they said, second day was a half day like they said, and the painter they recommended confirmed the frames were dead plumb. The financing was explained in actual dollars, not a brochure."
- Janet R."Impact windows on the whole house. They handled the permit, the inspection, and gave me a folder with every approval number for the insurance company. My windstorm premium dropped enough to notice."
- Bill T.



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