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 Marina del Rey
Door installation in Marina del Rey runs anywhere from $1,600 for a straightforward replacement slab to $8,500 or more when we open the wall and find what salt air has been doing to the framing behind it. We are Lightwell Windows & Doors, and we work this harbor community every week, so we know what lives behind a 1970s condo door before we ever pull the trim. If you need a new entry door, sliding glass door, or a full replacement with county permits handled, call (562) 478-8017 and Keith Yamada will walk you through what it takes, in writing, before any work starts.
Why Lightwell Windows & Doors Is Marina del Rey’s Preferred Door Installation Company
We are an independently owned and operated Cedarwell company, and that matters here because Marina del Rey is not a typical coastal suburb. It is a working harbor, and the buildings that surround it were mostly built between 1965 and 1985, when the marina was new. Our crews know how original aluminum slider doors from that era corrode at the threshold before anywhere else, and we quote for what we will actually find, not what a showroom door looks like on a drawing. That is why our Door Installation work in this community tends to start with an inspection of the existing jamb, the flashing behind the stucco, and the condition of the threshold pan, not just a measurement for the new slab.
Our Marina del Rey customers call with water-facing units that fail years ahead of inland units in the same building. They call because a sliding door no longer latches, or because the threshold has rusted through and the carpet by the door is always damp. Every quote we write here includes the C.A.R.E. values our technicians follow on site: Clean up like it is our own home, Ask before we move or touch anything, Respect the family’s time and quiet hours, and Explain the price before the work. We put shoe covers on at the door, drop cloths down before anything comes off, and send a photo of the clean-up before the crew leaves. That is not a bonus. That is the Cedarwell Care Promise, and it has been since 2010.
Sliding Glass Door Installation in Marina del Rey
Sliding Glass Door Installation is the most common door job we do in Marina del Rey, and for a reason that is specific to this harbor. Original 1960s and 1970s aluminum sliders in the condo towers and mid-rises here sit in salt-laden air that gets trapped between the buildings and the slips, so the rollers, the tracks, and the threshold pans oxidize far faster than the same door would in Culver City or even most of Venice. A new sliding glass door in Marina del Rey typically runs $2,800 to $6,900 installed, depending on panel size, glass package, and whether we find framing or waterproofing work once the old frame comes out.
Coastal-Grade Track and Threshold Work
When we pull an old Marina del Rey slider, we check the threshold pan for rust-through before we order anything. Rusted pans let harbor damp wick into the jamb and subfloor, and the new door will not seal no matter how well it is installed. We replace the pan, re-flash to the stucco, and set the new track on a level, treated jamb before the new slab ever goes in.
Glazing for Harbor-Facing Units
Water-facing sliders take the worst of the marine air, and they also take more wind-driven salt spray than inland units, so we often recommend glass and hardware packages built for corrosive environments. CWS and ES Windows both make coastal-rated slider systems that hold up better on Via Marina or Admiralty Way than standard aluminum frames. Our Door Installation in Marina del Rey team will help you match the right glazing to your unit’s orientation, not just to your building’s age.
Door Repair in Marina del Rey
Door Repair in Marina del Rey usually starts with a dragging or sticking slider, a threshold that has gone soft, or a front door that no longer closes square against the jamb. Minor roller and hardware replacement on a salvageable door runs $350 to $1,200, while a full threshold pan replacement with new flashing typically falls between $1,200 and $2,800 depending on access and what we find underneath. The first question is always whether the door itself is worth saving, and in this harbor, the answer depends heavily on which way the unit faces.
Roller, Track, and Latch Service
When rollers flat-spot from years of grinding through salt corrosion, the door gets hard to move and eventually stops latching. We clean or replace the track, swap the rollers, and realign the panel so it slides like new, as long as the frame is still sound. If the aluminum frame has oxidized to the point of pin-holing or the threshold pan is rusted through, repair stops making sense and we will tell you that plainly.
When Repair Is the Wrong Call
Water-facing doors that have been soaking in trapped harbor air for 40-plus years often hide bigger problems behind the wall. If the framing is water-damaged or undersized, or the flashing has failed, repairing the door does not fix the leak. Keith Yamada will write you a quote that spells out exactly what we found and what we recommend, with no pressure to replace what can be saved.
Trusted Brands We Service in Marina del Rey
We service and install doors from eight manufacturer brands, and in Marina del Rey we lean most often on Therma-Tru for entry doors, CGI for impact-rated slabs in exposed water-facing positions, and ES Windows for custom coastal sliders. We keep commonly needed Marina del Rey parts on hand locally, so a roller set, a threshold pan, or replacement weatherstripping does not have to be ordered from across the country before we can start. When we quote a door, we select the brand that fits the home and the harbor exposure, not the one that is easiest for us to source.
Common Door Installation Problems We See in Marina del Rey Homes
- Oxidized original aluminum sliders. Harbor air trapped around the condo towers corrodes rollers, tracks, and threshold pans on 1965 – 1985 doors until they seize. Inland units in the same building often stay serviceable a full generation longer.
- Failed waterproofing at the threshold pan. Opening up an old door regularly reveals rusted-through threshold pans and failed flashing that were letting damp into the jamb. The new door cannot seal until that is corrected.
- Undersized or rot-damaged framing behind the door. Doors from the original marina build era were sometimes set on 2x framing that is now soaked and undersized for the structural loads. Reframing is necessary before we can set the new slab.
- County permit requirements that surprise contractors. Marina del Rey is unincorporated Los Angeles County, so door permits run through LA County Building and Safety, not a city department. We handle that paperwork and the inspections as part of the job.
Pricing for Door Installation in Marina del Rey, CA
A standard exterior door replacement in Marina del Rey runs $1,600 to $4,400 including removal, new slab, hardware, and trim. A sliding glass door replacement runs $2,800 to $6,900, and full entry systems with reframing and county permits run $5,000 to $8,500 or more when water damage is extensive. What moves the price here is unit orientation. Water-facing doors cost more to replace because the surrounding framing, threshold pan, and flashing are more likely to need rebuilding. You will get a written, line-item price before any work starts, and if we find something unexpected behind the wall, we stop and put the new number in writing before we touch it. Call (562) 478-8017 for a free estimate.
We Also Serve Cities Near Marina del Rey
While this page is written for Marina del Rey, our crews also work regularly in Culver City, Santa Monica, El Segundo, and Inglewood. If you are just outside the harbor and need a door replaced or repaired, call the same number and we will get you on the schedule.
Serving Marina del Rey, CA - Our Local Coverage Area
We’re based in the Marina del Rey 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 Installation in Marina del Rey
Because Marina del Rey is built directly on an active small-craft harbor, the salt-laden air around water-facing units is trapped and concentrated, so aluminum frames, rollers, thresholds, and hardware on slip-side doors oxidize much faster than identical hardware on the inland side of the same building. We track this by unit orientation, not building age, and we quote accordingly. Call (562) 478-8017 for an exact quote on your specific unit.
In original 1965 – 1985 harbor construction, we typically find rusted-through threshold pans, failed flashing at the stucco, undersized or water-damaged framing, and occasionally outdated wiring runs that were never meant to be touched. We inspect before we quote, write allowances into the contract for the work we can see, and price any surprise in writing before we touch it.
Marina del Rey is unincorporated Los Angeles County, so door permits run through LA County Building and Safety, not a city department. We pull the permit, schedule the inspections, and stay until the job passes. It is part of the written price you approve before we start.
Impact-rated glazing is not required for every door in Marina del Rey, but for water-facing units, harbor-side exposure to wind-driven salt spray and the occasional storm makes impact-rated products like CGI a smart choice. We will show you your options with the difference in cost written down, so you decide with real numbers in front of you.
Sometimes, yes. If the frame is sound and the roller or track is the only problem, repair runs $350 to $1,200 and gets the door moving again. If the threshold pan is rusted through or the framing behind the door is damaged, repair is a temporary fix at best. We will tell you which it is before any money changes hands.
Written by Keith Yamada, Owner at Lightwell Windows & Doors, serving Marina del Rey since 2010.










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