Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Door Replacement Across Lennox
Door replacement in Lennox typically runs $850 – $3,400 for a standard exterior door and $400 – $1,600 for interior doors, depending on whether the rough opening needs reframing. Our crews know Lennox’s 1920s-1940s stucco bungalows well enough to spot the problems before they become change orders. Call Juniper Windows & Doors at (682) 281-2168 and we’ll scope the job properly, pull the right Lennox permit, and hand you a written price before a single screw turns.
Lennox is its own incorporated city wrapped almost entirely around Inglewood, with roughly 2,900 residents and a building department that issues its own permits. That detail matters when you’re replacing a door. So does the housing stock: single-story stucco bungalows that have been settling for 80 to 100 years. We work here regularly and know what those homes hide behind the trim.
Why Juniper Windows & Doors Is Lennox’s Preferred Door Replacement Company
Homeowners along Lennox Boulevard, 104th Street, and Inglewood Avenue call us because we show up when we say we will, with a live arrival time they can track on their phone. That’s the Relay Visibility Guarantee, and it’s standard on every job. Before-and-after photos, a written price, a digital invoice you can pay from a link. No vague quotes, no four-hour windows.
We’ve replaced doors in Lennox where the jamb had rotted behind stucco from years of irrigation spray, where the rough opening had racked half an inch out of square, and where the old door was never flashed correctly to begin with. Our techs are background-checked and uniformed. Sean Mackey leads the crews, and every project is covered by the 365-Day Done Right Promise: parts and labor, in writing, for a full year.
We stock parts for Lennox jobs locally and schedule around the city’s inspection calendar. Live phone support is answered by a real person 24/7. Call (682) 281-2168 and you’ll get a direct answer, not a voicemail maze.
Door Frame Repair in Lennox
Door frame repair in Lennox usually runs $300 – $900 per opening, and it’s the thing that separates an honest bid from one that will balloon the moment the old door comes off. In stucco bungalows built between the 1920s and 1940s, the jamb legs sit directly against masonry or framed openings that have absorbed decades of sprinkler overspray and coastal moisture. We find rot behind the stucco more often than not.
Rotted jamb replacement
When the bottom six inches of a jamb leg turns soft, the door sags, the latch stops lining up, and weather gets in. Here’s what the fix involves: we cut back the rotted material, sister new jamb stock, re-square the opening, and reinssulate before patching the stucco returns. On a 1940s bungalow near Lennox Boulevard and 104th Street, our crew did exactly that and set a new Therma-Tru fiberglass entry door. The homeowner told us the entry hall stayed noticeably cooler afterward.
Racked or out-of-square openings
Eighty-year-old foundations settle. That means rough openings drift, and a new prehung door won’t sit square until the opening is corrected. We shim, plane, or reframe as needed, then flash the bottom so water can’t wick into the framing. Skipping this step is why some Lennox door replacements start leaking within a year.
Interior Door Replacement in Lennox
Interior door replacement in Lennox typically costs $400 – $1,600 per door including installation and hardware, depending on whether you want a simple slab swap or a new prehung unit with casing. The bungalows here have narrow hallways and non-standard rough openings, so we measure every opening before quoting. A 28-inch closet door from a 1930s bedroom is not the same job as a 32-inch modern bedroom door.
Slab swaps vs. prehung
If your existing jamb is square and solid, we can fit a new slab for less money. But in older Lennox homes, the jambs are often the weak point. A prehung unit replaces the door, jambs, and casing as one assembly, which usually makes more sense in these houses.
Hardware and finish work
We set the door, adjust the reveals, and install the hardware you choose. Every interior door gets checked for plumb and smooth swing before we pack up. The 365-Day Done Right Promise covers this work too: if a hinge loosens or a slab warps within a year, we come back and fix it at no charge.
Trusted Brands We Service in Lennox
We carry Therma-Tru, PGT, and CWS product lines, and we service doors from those manufacturers and more. If your Lennox home has a specific door or window line already installed, we’ll match the hardware, hinge prep, and style. Stocking local parts for these brands means faster turnaround on warranty replacements and repair jobs across Lennox, Inglewood-adjacent streets, and the surrounding area. We don’t do general remodeling, and we don’t push brands we don’t trust on Lennox homes.
Common Door Replacement Problems We See in Lennox Homes
- Rotted jamb legs behind stucco. Irrigation spray aimed at the entry landing or side walkway soaks the stucco, and water wicks into the jamb. By the time you see peeling paint or a sagging door, the wood behind the stucco is often gone.
- Racked rough openings from 80+ years of settling. Foundations here shift with expansive soil and seasonal wet-dry cycles. A new door installed into a racked opening will bind, rub, and fail early.
- Wrong permit assumption. Contractors who quote Lennox work using LA County or Inglewood permit schedules get stalled mid-job. Lennox has its own building department, and re-pulling a permit costs time and money.
- Missing wind-mitigation paperwork on exterior doors. If the door has glass and isn’t impact-rated or documented, the homeowner loses an insurance credit they could have claimed. A little paperwork at inspection time makes a real difference on the premium.
Pricing for Door Replacement in Lennox, CA
Here’s what we tell Lennox homeowners when they call. A basic interior slab swap starts around $400 – $800. A prehung interior door with casing runs $700 – $1,600. Exterior door replacement starts around $850 for a basic steel unit and goes to $3,400+ for a Therma-Tru fiberglass door with glass, custom sizing, or impact-rated glazing. The big cost driver in Lennox is the rough opening: if we need to reframe or sister a rotted jamb, add $300 – $900. Permits through Lennox’s own building department are included in the written price we give you. Call (682) 281-2168 for a free, itemized estimate. No vague ranges, no “we’ll see when we open it up” games. We scope the opening, we write the number down, and that’s your number.
We Also Serve Cities Near Lennox
Our Door Replacement team works throughout the South Bay and beyond. We regularly serve Door Replacement in Lennox and nearby Los Angeles, San Diego, San Jose, and San Francisco. If you’re just outside Lennox, call us anyway. We’ll tell you straight whether we can get a crew to you.
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 Door Replacement in Lennox
The City of Lennox issues its own building permits through its own building department, not LA County and not Inglewood. For exterior door replacements that change the opening or involve structural work, the permit comes from Lennox directly. Our team pulls the permit, schedules the inspection, and handles the entire process. If you need an exact answer for your specific door call (682) 281-2168 and we’ll confirm what applies.
Yes, when the opening changes, the door is structural, or the rough opening is being reframed, Lennox requires a permit and inspection. A like-for-like slab swap on an existing frame may not require one, but if we find rot or racking, the scope changes. We handle permits and inspections on every job where they apply. Call (682) 281-2168 for a free estimate and we’ll confirm permit requirements up front.
Because the old door hides the real condition of the opening. In 1920s-1940s stucco bungalows, rot behind the stucco and racked framing are common. A good contractor scopes for this before quoting; a bad one quotes the door, then discovers the jamb is gone and revises upward. We write the price after assessing the opening, not before, which is why our number stays the same. Want that in writing? Call (682) 281-2168.
If your front door has glass and you’re under the LAX flight path, impact-rated glazing (built to resist wind-borne debris without shattering) is worth pricing. It can also earn you a wind-mitigation insurance credit that offsets some of the upfront cost. We’ll show you the PGT and CWS options and the documentation that supports the credit. Call (682) 281-2168 for a quote.
Most standard door replacements take one to two working days on site. Reframing, stucco patching, or a custom-ordered door adds time, usually a week or two between permit, delivery, and inspection. We give you a calendar during the estimate so you know what to expect. Call (682) 281-2168 to schedule your free estimate and get a written timeline.
Schedule Your Lennox Door Replacement Estimate
We price scoped and honest, we pull the right Lennox permit, and we don’t leave until the door swings square and the inspection passes. The 365-Day Done Right Promise covers the work in writing for a full year. Call (682) 281-2168 now to schedule your free estimate with Juniper Windows & Doors. A real person answers.
Written by Sean Mackey, Owner at Juniper Windows & Doors, serving Lennox and the surrounding South Bay communities.










Before
After
Before
After
Before
After