Door Replacement in Lomita - Free In-Home Measure, Written Price

Fast, Reliable Door Replacement Across Lomita

Door replacement in Lomita usually runs $850 – $3,200 depending on whether we’re swapping a slab, setting a pre-hung unit, or rebuilding a rotted frame. Most jobs on Lomita’s older single-story tract homes and post-war cottages take one to two days once we’re on site. We know the stretch of Pacific Coast Highway, the blocks off Narbonne Avenue, and the neighborhoods climbing toward the Palos Verdes edge. Lomita’s coastal air and mid-century housing stock mean door work here is rarely a stock swap. Call (682) 281-2168 to schedule a free estimate. We’ll scope the rough opening, the threshold, and the hardware before a single screw turns.

Call (682) 281-2168

Why Juniper Windows & Doors Is Lomita’s Preferred Door Replacement Company

We’re the windows-and-doors specialist inside the Relay Home Co. family, and the way we run a job is different from what Lomita homeowners have come to expect from contractors. Every project gets a written price before anything starts. That number stays locked. The 365-Day Done Right Promise covers parts and labor for a full year after installation, in writing. If something isn’t right, we make it right. Our technicians are background-checked and uniformed, and you’ll get a live arrival time you can track, before-and-after photos, and a digital invoice you can pay from a link. Sean Mackey leads our team, and the standard he set is simple: scope it accurately, price it honestly, install it cleanly.

Lomita homeowners tell us the same thing over and over: they’ve had contractors give a vague estimate, then adjust the number at the door. We don’t do that. When we measure a door opening on a 1950s cottage near 246th Street, we account for the out-of-square framing, the threshold height, the stucco repair, and the permit before we hand you a price. That’s the only way a quote means anything.

Interior Door Installation in Lomita

Interior door installation in Lomita typically runs $350 – $900 per door, including the slab, hardware, labor, and cleanup. The job involves removing the old door, checking the rough opening for square, shimming and setting the new door, routing hinges and lockset holes if needed, and adjusting the latch so it closes without binding. On older Lomita homes, we often find the jamb has drifted over decades and needs to be reset or replaced before a new door will swing correctly.

Pre-Hung Interior Doors

When the existing frame is twisted, cracked, or too far out of square to salvage, we recommend a pre-hung unit. The door comes already mounted in a new frame, and we set the whole assembly level and plumb. This is common in Lomita’s post-war cottages, where framing lumber has moved with decades of coastal humidity swings.

Slab Replacement Only

If the jamb is solid and square, we can replace just the slab. We’ll match the hinge placement to the existing mortises, bore for the lockset, and trim to fit. It’s faster and cheaper, but only works when the frame is in genuinely good shape. We’ll tell you honestly if it isn’t.

Door Installers in Lomita

Our door installers serving Lomita handle full door replacement from tear-out to trim. That means cutting back rotted sills, re-flashing jambs, setting the door in a new pan, insulating the gap, and sealing the exterior. We coordinate the City of Lomita permit when one’s required, and we schedule the inspection after the work is done. For exterior doors on Lomita homes near the Palos Verdes foothill edge, we spec corrosion-resistant hinges and locksets because salt-laden marine air will eat standard hardware within a few seasons.

Exterior Entry Doors

Exterior door replacement starts with the rough opening. We measure diagonally to check for square, evaluate the sill and subfloor, and look at how water has been draining at the threshold. Then we recommend a door that fits the opening and the exposure: fiberglass for coastal moisture resistance, or steel where security is the priority. We set the door with a new sill pan and flashing so water can’t find its way back in.

Threshold and Frame Repair

A door is only as good as the frame holding it. On Lomita homes built between the 1940s and 1970s, we regularly see rotted thresholds, twisted jambs, and stucco that’s pulled away from the frame. We cut out the damaged wood, rebuild the sill, and re-flash before the new door goes in. Skip this step and the new door will bind and leak within a season.

Trusted Brands We Service in Lomita

We carry access to eight product lines, and for door work in Lomita the brands that come up most are Therma-Tru, CGI, and CWS. Therma-Tru fiberglass entry doors hold up well against coastal fog and don’t warp like wood. CGI and CWS give us strong impact-rated options for homeowners who want a door that can stand up to wind-borne debris. Because we stock local parts for Lomita jobs, we’re not waiting on a distributor to ship a hinge or a sweep from out of state. The right door for your opening is never a compromise. You can read more about our process on our Door Replacement page.

Common Door Replacement Problems We See in Lomita Homes

• Out-of-square rough openings: Lomita’s older single-story tract homes and post-war cottages often have door frames that have shifted over 60 – 80 years. Forcing a stock door into an opening that’s off by half an inch means a door that binds at the top and lets air in at the bottom.
• Coastal salt-air corrosion: Along the Palos Verdes foothill edge, seasonal fog and marine air accelerate rust on hinges, locksets, and door sweeps. We see exterior hardware fail in three to five years when standard finishes are used.
• Rotted thresholds and sills: Lomita’s older homes often have original wood sills that sit below grade. Water pools at the threshold, wicks into the framing, and rots the structure before the homeowner notices anything beyond a sticking door.
• Stucco and trim damage around the frame: Exterior door replacement on stucco-clad Lomita homes means planning for stucco repair, flashing, and sometimes new trim. Ignoring that step leaves gaps that leak the first winter rain.

Pricing for Door Replacement in Lomita, CA

We Also Serve Cities Near Lomita

Beyond Lomita, our Lomita area crews handle door replacement for homeowners in Lakewood, Torrance, Carson, and Rancho Palos Verdes. Each area has its own housing quirks, from Torrance’s mid-century ranches to Rancho Palos Verdes hillside homes with heavier coastal exposure. Our process stays the same: written price, live arrival time, and work done right.

FAQs About Door Replacement in Lomita

What a Door Replacement in Lomita Actually Involves

Lomita’s older single-story tract homes and post-war cottages often have out-of-square door rough openings that require custom jamb extensions and re-flashing. A “standard” door replacement here is rarely a stock swap. We recently replaced a failed exterior entry door on a 1950s cottage near Narbonne Avenue and 246th Street, where the original wood frame had twisted and the threshold sat below grade. After cutting back the rotted sill, we set a Therma-Tru fiberglass door with a laminated glass interlayer and re-flashed the jamb with a new pan. The homeowner gained a weather-tight, lower-maintenance entry that finally sealed against the coastal moisture. That’s what “done right” means in Lomita: accounting for what’s behind the door, not just what’s on the surface.

Along the Palos Verdes foothill edge, salt-laden marine air and seasonal fog accelerate hardware corrosion and finish failure on exterior doors. We spec hinges and locksets accordingly. We also look at the threshold transition: many Lomita homes have slab foundations or post-war crawl spaces with thresholds that sit low, so water management at the base of the door is the difference between a door that lasts ten years and one that rots in three.

Call (682) 281-2168 to schedule your free door replacement estimate in Lomita. We’ll measure, scope, and hand you a written price before anything starts.

Written by Sean Mackey, Owner at Juniper Windows & Doors, serving Lomita and the surrounding South Bay communities.