Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Windows & Doors Across Lennox
Window and door work in Lennox is not like window and door work in Inglewood or Hawthorne. You’re in an unincorporated LA County enclave, which means every permit routes through the County’s Department of Building and Safety, not some little city hall down the street. That changes timelines, paperwork, and who signs off on the job. We’ve done enough work off Imperial Highway and around Lennox Park to know exactly how it goes. If you’re pricing window replacement or impact windows in Lennox, call (877) 610-1318 and we’ll give you a straight answer.
Why Barrett & Sons Construction Is Lennox’s Preferred Windows & Doors Company
Tom Barrett started this company in 1998 and his sons run the crews. When we work in Lennox, we’re not sending strangers. The same faces show up every day until the job is done. That matters in a neighborhood where houses were built in the 1940s and 50s and half of them have had a window or door opening cut somewhere along the way that was never permitted.
We know the 90304 building stock. Post-WWII stucco bungalows. Small apartment buildings from the Eisenhower years. Original aluminum-frame single-pane windows that rattle when a plane climbs out of LAX overhead. We’ve pulled permits at the Hawthorne satellite office enough times that the counter staff know us by name. The County inspector signs off on our work, and then Tom signs the 90-Day Done Right Promise. If something’s not right, one call brings him back.
Our Windows & Doors Services in Lennox
We’re a Windows & Doors contractor that handles the whole job: tear-out, framing correction, flashing, installation, trim, and the County inspection. Here’s what Lennox homeowners call us for most often.
Window Replacement
Most Lennox homes still have their original aluminum single-panes. They’re drafty, they fog up, and the frames are pitted from decades of salt-laden marine air. We replace them with dual-pane vinyl or fiberglass units sized to your existing rough openings. A full-house window replacement in Lennox typically runs $4,500-$15,000 depending on window count, sizing, and how much framing repair the County makes us do once the old units come out.
Impact Windows & Doors
You live under the LAX flight path. You also live close enough to the coast that wind-driven debris is a real concern. Impact-rated windows and doors from PGT or CGI give you laminated glass that holds together if a branch or roof tile hits it. Lennox homeowners choosing impact windows usually spend $8,000-$25,000 for a full retrofit, and the permit still runs through the County.
Door Installation
Front entry doors, back doors off the kitchen, side doors into the garage. We set them square, flash them properly, and replace the threshold pan if it’s rotted. In Lennox, the morning marine layer means an unsealed threshold pan corrodes within two seasons. We don’t skip that step.
Sliding & Patio Doors
Those old aluminum sliders that stick halfway open? The ones that whistle when a plane flies over? We pull them and set new vinyl or impact-rated sliders in their place. If you’re doing windows and a slider together, the slider gets scoped within the window replacement range: $4,500-$15,000 total for a typical package. The big variable is whether the header above the opening needs to be resized, which can trigger an FAA Part 77 height review if you’re on a gable end.
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 Lennox
We install and service Simonton, Ply Gem, and PGT windows and doors. These are brands you can look up, not mystery units off a van. When a Lennox customer needs replacement glass, a new balance, or a warranty part, we order directly through our supplier channels and schedule the follow-up around County inspection availability, not the other way around.
Common Windows & Doors Problems We See in Lennox Homes
- Corroded sill plates and steel perimeter framing. The salt air off the coast eats exposed metal. On a 1948 stucco bungalow off Imperial Highway, our crew found the original galvanized framing around a window rough opening had rusted so thin you could push a screwdriver through it. We scoped a change order for new pressure-treated sill plates and flashing before setting the window. The County inspector signed the pre-drywall condition that same week.
- Unpermitted window and door openings. Decades of informal additions and garage conversions mean a lot of Lennox openings were never on any permit. When we pull a County permit for your window replacement, the inspector can flag the whole wall section. You don’t want to find that out mid-project with a hole cut in your wall.
- Fogged or rattling original single-panes. The 1940s and 50s aluminum frames lose their seals, and the glass sweats. You hear every takeoff from LAX. Dual-pane replacements fix both.
- Sticking sliders and patio doors. Marine moisture swells wood frames and corrodes roller hardware. We replace the whole unit rather than fighting a 60-year-old track.
Pricing for Windows & Doors in Lennox, CA
Here’s what you’re looking at for Lennox specifically. These are market ranges, not quotes. We write every scope and every allowance on paper before you sign anything. No change orders happen verbally. If the County requires additional egress work, a wider header, or impact glazing because of the flight path, you’ll see it as a written change order with a line-item price before that work starts.
| Service | Typical Lennox Price Range |
|---|---|
| Window Replacement | $4,500-$15,000 |
| Impact Window Installation | $8,000-$25,000 |
| Sliding & Patio Doors (scoped within Window & Door package) | $4,500-$15,000 |
Call (877) 610-1318 for an exact line-item quote. Estimates are free, and we publish Tom Barrett’s name, address, and license number. Look us up before you sign anything.
We Also Serve Cities Near Lennox
Most of our work is in Lennox, but we regularly take jobs in Del Aire, Hawthorne, Inglewood, and El Segundo. If you’re a few blocks over the county line, the permit path changes, and we handle that too. Call (877) 610-1318 and we’ll tell you which building department applies to your address.
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 - Windows & Doors in Lennox
Lennox has no city building department, so every window and door permit goes through LA County’s Department of Building and Safety, and in practice that usually means the Hawthorne satellite office. There is no “City of Lennox” permit counter. Contractors who waste two weeks trying to find one delay your job. We go straight to the County.
Lennox sits directly beneath LAX arrival and departure paths, so any vertical change to a structure, including a taller sliding glass door header or a second-story window on a gable end, can trigger an FAA Part 77 airspace surface review. That review happens before framing can proceed, and it can add days or weeks. We check the height implications during the estimate, not after the wall is open. Call (877) 610-1318 and we’ll tell you whether your opening triggers a review.
Lennox is closer to the coast, and the marine layer sits over the neighborhood most mornings from May through August. That persistent surface moisture plus salt-laden air accelerates corrosion on aluminum frames, steel lintels, and galvanized hardware. Inglewood is a mile and a half inland and gets less of it. When we replace windows in Lennox, we inspect and often replace the sill plates and flashing at the same time, and we get the County sign-off before closing up the wall.
If a previous owner cut a window or door opening without a permit, LA County code enforcement can require the entire wall section to be brought up to current egress and energy standards before sign-off. That means larger header sizing, proper king and jack studs, and possibly a bigger window for fire egress. We scope that work in writing before we start, so you know exactly what the County will require and what it costs. No surprises at the end.
The fog and surface moisture most mornings from May through August mean exterior sealing work, flashing tape, and threshold pan installation sometimes can’t start until the surfaces dry out. We schedule Lennox jobs with that in mind, building in morning dry-time so we don’t rush a seal that fails in two seasons. It’s one more reason the County inspection path here takes a little longer, and why a contractor who doesn’t know Lennox will quote you an unrealistic timeline.
Call for a Free Lennox Estimate
If you’re in the 90304 and you want window replacement, impact windows, a new sliding door, or all of it done once and done right, call (877) 610-1318. We’ll come out, look at your openings, check the County permit path, and write you a line-item scope. Tom Barrett puts his name on it. His sons run the crew. And the 90-Day Done Right Promise is written on the contract. Call (877) 610-1318 to schedule your free estimate.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Lennox since 1998.