Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Trusted Windows & Doors for Los Angeles Homeowners
Window and door replacement in Los Angeles typically costs $5,310-$29,500 depending on material, size, and whether you need standard or impact-rated units. Most projects are quoted with a flat written price within 24 hours of our visit, and work begins only after you’ve reviewed and approved the scope in writing. Call (213) 652-7670 to schedule your free estimate.
We’ve been installing and replacing windows and doors across Los Angeles since 2007, completing over 4,000 projects with a documented record that keeps our final invoices within a few percent of the original written quote. The discipline is simple: no work starts without a signed price, and no change proceeds without a signed change order. That’s Clause 1 of The Haven Standard, the operating system Haven acquired Rowan for in 2022, and it’s why homeowners in Brentwood, Studio City, and Westchester keep our quotes on file even when they’re comparing three other contractors.
Los Angeles presents specific challenges for windows and doors. The Santa Ana winds stress seals and frames differently than coastal moisture does in Venice or Santa Monica. Older homes in West Hollywood and Inglewood often have non-standard rough openings from decades of settling. New construction in Culver City and West Los Angeles faces Title 24 energy compliance that standard off-the-shelf units won’t satisfy. We measure each opening, photograph the existing conditions, and specify the exact unit - brand, model, NFRC rating, and installation method - before anyone picks up a tool.
What Our Windows & Doors Service Includes
Window Installation
Window installation is the placement of new units in newly created or prepared rough openings, common in home additions, ADU construction, and garage conversions across Los Angeles. We specify the unit by manufacturer and model number, verify the rough opening against the manufacturer’s installation manual, and install with proper shimming, flashing, and insulation to prevent the air infiltration that drives up cooling bills in Pasadena and the Valley. Every installation includes a documented photo record of the opening before, during, and after, plus the written warranty terms.

Door Installation
Door installation covers entry doors, patio doors, and interior passage doors in new construction and remodel projects throughout Los Angeles. We verify plumb and level with a laser level, shim the frame to maintain consistent reveal gaps, and seal the threshold to prevent water intrusion during the winter storms that hit harder in hillside neighborhoods like Brentwood and the Hollywood Hills. The hardware is specified by brand and finish in the written quote - Baldwin, Emtek, or Schlage - so there’s no substitution without a signed change order.

Window Replacement
Window replacement removes existing units and installs new ones in the same rough openings, the most common window project we perform in Los Angeles homes built between 1945 and 1995. We inspect the existing frame for rot, termite damage, and settling distortion - conditions we find regularly in Mid-Century homes from Studio City to Manhattan Beach - and document what we find with photos before quoting any frame repair. A typical Los Angeles window replacement runs $5,310-$17,700 depending on unit count, material, and whether the existing frames are salvageable.

Impact Windows & Doors
Impact windows and doors use laminated glass and reinforced frames to resist wind-borne debris, required by code in Los Angeles for certain hillside and high-wind exposure zones and increasingly chosen by homeowners who want the security benefit. We specify units that meet ASTM E1996 and Miami-Dade protocols, pull the permit, and schedule the inspection - the administrative work most contractors leave to the homeowner. Impact window installation in Los Angeles typically ranges $9,440-$29,500 for a full-home replacement, with single-unit installations starting higher per opening due to mobilization.

Energy-Efficient Windows
Energy-efficient windows reduce solar heat gain and conductive loss through low-E coatings, argon gas fills, and warm-edge spacers, directly addressing Title 24 compliance and the cooling loads that spike utility bills in inland Los Angeles neighborhoods like Westchester and Maywood. We quote the U-factor and SHGC for each unit so you can compare against the HERS rater’s requirements, not just take our word for “efficient.” The NFRC label data is included in the written scope, and we verify compliance with the city’s plan check comments before ordering.

Sliding & Patio Doors
Sliding and patio doors create access to outdoor space in Los Angeles homes where the backyard is the primary entertaining area, common in additions and remodels from Venice to Beverly Hills. We specify the track system - stainless steel rollers on bronze-anodized track for coastal exposure, aluminum with nylon rollers for inland - and verify the header can carry the load without sagging, a structural check many installers skip. The screen, lockset, and foot bolt are itemized in the quote, not buried in allowances.

What happens when you call
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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.
Brands We Service for Windows & Doors

We’ve installed and serviced units from Abodu, the prefabricated ADU manufacturer whose window and door packages require precise rough opening tolerances that standard framing rarely achieves. Our crews have completed dozens of Abodu installations across Los Angeles County, learning the specific sequence - window install before siding, door hang after interior trim - that prevents the water intrusion claims that plague prefab projects. We stock the custom flashing kits and maintain direct contact with Abodu’s field team for specification clarifications.
We’ve also worked extensively with Dvele, the automated prefab builder whose integrated window and door systems include smart glass and motorized shading. The electrical integration requires coordination between our window crew and the low-voltage contractor, a interface we document with written scope division and photo verification at each handoff. Whether you have Abodu, Dvele, Cover, Mighty Buildings, or any conventional manufacturer - Andersen, Pella, Milgard, Marvin, Jeld-Wen - we can source, specify, and install to the written standard.
Before
AfterSigns You Need Windows & Doors Right Now
- Drafts around closed sashes. Air movement past weatherstripping indicates compression set or frame distortion, conditions that worsen during Santa Ana wind events and drive heating and cooling costs up 15-30% in Los Angeles homes. We measure infiltration with a smoke pencil during our inspection and specify the exact seal replacement or unit replacement needed.
- Condensation between double-pane glass. Fogging inside the insulated glass unit means the edge seal has failed and the argon fill has escaped, reducing the unit’s thermal performance to that of single-pane glass. In coastal Los Angeles neighborhoods like Venice and Manhattan Beach, salt air accelerates seal degradation; we see this most often in units installed 12-18 years ago.
- Difficulty operating sashes or doors. Binding, sticking, or requiring force to close indicates frame racking, hardware wear, or structural settling - conditions that stress locking mechanisms and compromise security. We diagnose the cause with a level, square, and feeler gauge, then quote the specific repair or replacement rather than defaulting to full unit replacement.
- Visible frame rot or water staining. Softened wood, peeling paint at the sill, or interior drywall staining below windows signals flashing failure, a condition that destroys wall sheathing and invites termite infestation in Los Angeles’s drywood termite zones. We probe with an awl, photograph the extent, and specify the repair scope including any adjacent siding or drywall.
- Exterior noise penetration. Single-pane or poorly sealed windows transmit street noise, aircraft noise from LAX approach paths, and freeway drone from the 405 and 10 corridors. Upgrading to laminated or triple-pane units with proper sealing can reduce perceived noise by 50% or more - a specification we verify with STC ratings in the written quote, not vague promises.
Our Windows & Doors Process - Step by Step

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On-site measurement and documentation. We arrive with a laser measure, level, and camera, recording every rough opening dimension, existing frame condition, and adjacent finish material. You receive these photos as a standard deliverable, not an upgrade, so you have evidence of what we found before any work was discussed.
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Written quote with unit specification. Within 24 hours, we deliver a flat price with the exact manufacturer, model, size, U-factor, SHGC, and installation method specified. The quote includes permit costs if required, disposal of existing units, and protection of adjacent finishes. Under Clause 1 of The Haven Standard, this written price precedes any work - always.
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Permit application and plan check. For projects requiring Los Angeles Department of Building and Safety permits - impact-rated units, structural modifications, or Title 24-triggered replacements - we prepare the application, respond to plan check comments, and schedule inspections. The permit status is updated in your project record with inspection dates and results.
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Installation with photo documentation. Our background-checked, uniformed crew installs to the manufacturer’s written instructions, not field expedience, with a crew lead photographing each critical step: opening preparation, flashing integration, unit placement, shim locations, and final sealant application. These photos are uploaded to your project folder before the crew leaves.
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Final inspection and 365-Day Done Right Promise. We walk the installation with you, verify operation of every sash and lock, and deliver the written warranty and maintenance instructions. If anything is not done right, Rowan makes it right - the promise is printed on every page, backed by a terms page, not an asterisk. Call (213) 652-7670 and a live person answers 24/7.
How Much Does Windows & Doors Cost in Los Angeles?
A typical window replacement in Los Angeles runs $5,310-$17,700 for a standard home with 8-15 openings, depending on unit size, material (vinyl, fiberglass, or clad wood), and whether the existing frames require repair or replacement. Impact window installation for the same home ranges $9,440-$29,500, with the premium reflecting laminated glass, reinforced hardware, and the engineering documentation required for permit approval. Single door installations - entry, patio, or interior - typically fall within the lower portion of the window range unless structural modification is needed.
Several factors move the price within these ranges. Retrofit installation, where new units fit inside existing frames, costs less but sacrifices glass area and may not correct underlying water intrusion. Full-frame replacement, which we recommend when we find rot or distortion, removes the entire existing unit and installs new construction flanges properly integrated with the wall’s water-resistive barrier - more labor, more material, but a weathertight result that lasts. Custom sizes, geometric shapes, and divided-lite patterns add manufacturing lead time and cost. Coastal exposure in Santa Monica or Venice may require upgraded hardware and finish for salt-air resistance.
To avoid overpaying, compare quotes line by line on unit specification, not just bottom-line price. A quote that doesn’t name the manufacturer and model is not a quote you can verify. We welcome this comparison - bring any competitor’s written estimate and we’ll review it with you at no charge through our Free Second Opinion program. Our quote includes the unit, installation, disposal, permit, and standard photo documentation; no line item is buried in an allowance or marked “TBD.”
Schedule your free estimate by calling (213) 652-7670. A live person answers, and you’ll have a written price within 24 hours of our visit.
Windows & Doors Near Los Angeles - Our Service Area

We install and replace windows and doors throughout Los Angeles and the immediate metro area, with regular projects in Culver City, West Los Angeles, Santa Monica, Venice, Beverly Hills, Westchester, Brentwood, West Hollywood, Inglewood, Studio City, and Manhattan Beach. Response time for initial estimates is typically 24-48 hours across this area, with installation scheduling based on unit manufacturing lead time - usually 4-8 weeks for standard sizes, 8-12 weeks for custom or impact-rated units. Permit timelines vary by jurisdiction; Los Angeles Department of Building and Safety plan check for window and door permits typically runs 2-4 weeks for standard replacements, longer for projects requiring structural review.
Serving Los Angeles, CA - Our Local Coverage Area
We’re based in the Los Angeles area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Windows & Doors in Los Angeles

Our service includes measurement, specification, permit application, unit procurement, installation, disposal of existing units, photo documentation, and written warranty. We handle every administrative step - plan check response, inspection scheduling, and final sign-off - so you are not navigating the Los Angeles Department of Building and Safety on your own. Call (213) 652-7670 for a free estimate with line-item detail.
A typical full-home window replacement in Los Angeles takes 2-4 days of on-site work after units arrive, with single-door installations completed in one day. Manufacturing lead time is the longer variable: 4-8 weeks for standard vinyl or fiberglass units, 8-12 weeks for custom sizes, impact ratings, or special finishes. We coordinate delivery to minimize your exposure to open openings, and we never remove more than we can weatherproof by day’s end. Call (213) 652-7670 to discuss your timeline.
Window replacement in Los Angeles typically costs $5,310-$17,700 for a standard home with 8-15 openings, with impact-rated installations running $9,440-$29,500. The range reflects unit material, size, custom features, and whether full-frame replacement or retrofit installation is appropriate for your existing conditions. Every quote from Rowan Construction Group Los Angeles is a flat written price with no hidden allowances. Call (213) 652-7670 for an exact quote - estimates are free.
Yes, we have completed dozens of installations for Abodu and Dvele units across Los Angeles County, with direct experience in their specific rough opening tolerances, flashing sequences, and electrical integration requirements. We also service Cover, Mighty Buildings, and all conventional manufacturers. Bring your prefab project’s window and door schedule and we’ll quote to the exact specification. Call (213) 652-7670 to schedule a review.
We do not perform emergency board-up or temporary sealing; for broken glass or security breaches requiring immediate response, we recommend contacting a 24-hour glass service first, then calling us for the permanent replacement. For planned replacements where weather exposure is a concern, we schedule removal and installation within the same day and weatherproof any open openings before leaving. A live person answers our line at (213) 652-7670 24/7 to discuss scheduling.
Our 365-Day Done Right Promise covers installation workmanship: if it is not done right, Rowan makes it right, with the terms printed on every page and backed by a written terms page, not an asterisk. Manufacturer warranties on the units themselves vary by brand - typically 10-20 years on glass seal failure, lifetime on vinyl components - and we register these warranties in your name as part of our standard process. The manufacturer’s warranty terms are included in your project documentation. Call (213) 652-7670 with specific warranty questions.
Clear access to each opening - move furniture, remove window treatments, and unlock gates for exterior access - so we can measure accurately and photograph existing conditions. Gather any prior inspection reports, HOA architectural guidelines, or historic preservation requirements if your Los Angeles home is in a HPOZ. We bring the laser measure, camera, and level; you don’t need to know your unit sizes or manufacturers. Call (213) 652-7670 to schedule - estimates are free and carry no obligation.
Schedule Your Windows & Doors Service in Los Angeles Today
Call (213) 652-7670 to schedule your free estimate. A live person answers 24/7, and you’ll receive a flat written price with full unit specification within 24 hours of our visit. No work starts before you approve the scope and price in writing, and no change proceeds without a signed change order - the discipline that has kept Rowan Construction Group Los Angeles projects within a few percent of the agreed cost since 2007. The estimate is free, the second opinion on any competitor’s quote is free, and the 365-Day Done Right Promise applies to every installation we perform.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Los Angeles since 2007.







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