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
Los Angeles Windows & Doors typically run $5,310-$17,700 for replacement, and a full impact window installation for a standard 2,000-square-foot home lands between $9,440 and $29,500 depending on frame material, glass package, and how many openings you’re replacing. Those are the numbers we put in writing before anyone picks up a tool, because that’s how Rowan Construction Group has operated since 2007. Grant Rowan built this company on a single discipline: a written price, a written scope, and a signed change order before any work moves forward. If your windows fog between the panes, your doors stick after a hot Santa Ana week, or your utility bill in Los Angeles keeps climbing while your AC runs harder every summer, call (470) 298-9650 and we’ll give you a flat number you can screenshot and compare.

We’ve delivered 4,000-plus projects across seven trades, and every one of them started the same way: with a documented record of what we found, what it costs, and what you’ll have when the crew leaves. That’s Clause 1 of The Haven Standard, and it’s not a slogan. It’s the reason our projects finish within a few percent of the agreed number.
What Our Windows & Doors Service Includes
Window Installation
New window installation in Los Angeles means removing the old unit down to the rough opening, inspecting the framing and flashing, and setting the new window so it operates square and seals tight against both heat and the occasional heavy rain. We handle standard double-hung and casement windows, plus large fixed picture windows common in mid-century and hillside homes. Every install includes a documented photo record of the opening before, during, and after the work, so you can see the flashing detail and the condition of the framing we built against.

Door Installation
Windows & Doors - Huntington Park and surrounding areas: our door installation covers entry doors, interior pre-hung units, and side doors that have warped or started binding in their jambs because Los Angeles’s dry season pulls moisture out of wood faster than most climates. We set the frame level on shims, insulate the gap between the jamb and the studs, and adjust the threshold so the sweep actually seals. A door that doesn’t close on its own isn’t just an annoyance; it’s air leakage you pay for every month.

Window Replacement
Window replacement in Los Angeles is usually driven by three failures: broken seals that fog the glass, frames that have rotted or warped beyond repair, or single-pane aluminum frames that turn bedrooms into ovens by late afternoon. We replace the full unit, not just the sash, and we measure the opening in three places before ordering so the new window doesn’t need a fat caulk line to hide a bad fit. You get the old unit hauled away and the manufacturer’s warranty paperwork in your file.

Impact Windows & Doors
Windows & Doors - South Gate: impact windows and doors use laminated glass and reinforced frames designed to take a direct hit without shattering, which matters in Los Angeles for both storm protection and what most homeowners actually buy them for: security and noise reduction. We install impact-rated units from brands that meet Florida and Texas codes, so you’re getting tested, labeled performance, not a thicker pane sold as impact. The price difference from standard glass is real, and we’ll show it to you as a line item so you can decide with the number in front of you.

Energy-Efficient Windows
Energy-efficient windows in Los Angeles are about the glass package first: low-E coatings, argon or krypton fill between panes, and warm-edge spacers that reduce the heat transfer at the glass edge. We’ll look at how your home faces and recommend the right solar heat gain coefficient for each elevation instead of selling you the same glass on every side. On a west-facing wall in the Valley, the right coating can cut cooling load measurably, and we’d rather show you the spec sheet than tell you you’ll “save a fortune.”

Sliding & Patio Doors
Windows & Doors in Bell - sliding and patio door installation covers everything from standard 6-foot vinyl sliders to multi-panel doors that open an entire living room wall to a deck or patio. The weak point on most sliders is the track and roller assembly, which picks up dust and grime in Los Angeles’s dry months and then grinds when you force it open. We set the new unit level, confirm the rollers ride smoothly on the full track, and adjust the interlock at the meeting stiles so the door doesn’t whistle when the Santa Anas come through.

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 work with vetted material brands because a written price only means something when the materials behind it are honest. On windows, we regularly specify Milgard, Andersen, and Pella lines, and we’ve installed enough units from each to know their hardware, their flashing details, and where their factory tolerances actually land. On doors, we work with Therma-Tru, Masonite, and Simpson, and we’ll tell you straight whether a fiberglass door makes more sense than a wood one for the exposure you have. We don’t resell brands we haven’t touched, measured, and had warranty experience with.
Whether you’re replacing a single window or doing a whole-house swap, we can help with a written quote that names the manufacturer, the model, the glass package, and the per-opening price. No “premium brand” language, just the actual stock keeping unit and what it costs.
Before
AfterSigns You Need Windows & Doors Right Now
- Condensation or fog between the panes. That means the seal has failed and the insulating gas has escaped. The window still works, but its insulating value is gone, and it will keep getting worse.
- Drafts you can feel with the window closed. Run your hand along the frame on a windy evening. If air moves, the weatherstripping or the frame seal has failed, and you’re paying to condition outside air.
- Visible rot or soft wood at the sill or jamb. Water that gets past failing paint or flashing rots the frame from the inside out. By the time you see the stain, the wood is usually soft, and patching won’t hold.
- Windows that stick, jam, or fall shut. Springs and balances wear out, and warped frames won’t let the sash seat. That’s a safety issue and a sign the unit has reached the end of its service life.
- Your cooling bill climbs while the thermostat stays the same. In Los Angeles, single-pane windows are the single biggest envelope loss most older homes have. The heat that passes through the glass is load your AC pays for every afternoon.
Our Windows & Doors Process - Step by Step

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Measure and document. We measure every opening in three places, check the rough opening for square, and photograph the existing condition. You get a written record of what we found before we talk about price.
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Written quote with named materials. The quote lists each window or door by opening, with the manufacturer, model, glass package, and per-unit price. It’s a flat number with a written scope. No “we’ll see when we open the wall.”
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Signed change order before any deviation. If we find rotted framing behind a sill, we stop, photograph it, and bring you a written change order with the added cost. Nothing proceeds until you sign it. That’s Clause 3 of The Haven Standard.
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Installation with a documented record. The crew is background-checked and uniformed. We photograph the opening before, during, and after installation, including flashing and sealant details that get covered up by trim.
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Walkthrough and written warranty. We walk the job with you, confirm operation and seals, and hand you the manufacturer’s warranty paperwork plus our 365-Day Done Right Promise. If it’s not done right, Rowan makes it right, and that’s printed, not implied.
How Much Does Windows & Doors Cost in Los Angeles?
A window replacement job in Los Angeles typically runs $5,310-$17,700 depending on the number of openings, the frame material, and the glass package. Impact window installation on a whole house lands between $9,440 and $29,500 because you’re paying for laminated glass and stronger frames on every opening. A single door replacement is usually on the lower end of those ranges; a multi-panel sliding door with impact glass can push toward the top.

What moves the price: the size of the opening, whether the rough framing needs repair, whether you’re changing the window style (which changes the rough opening), and the glass package you specify. The way to avoid overpaying is to get a written line-item quote that names the brand and the model, not a lump sum that hides the material cost. Our free estimate includes the measurement, the photo record of existing conditions, and a written price you can hold us to. If you already have a written quote from another contractor, bring it in. We’ll review it line by line at no charge and show you where the money is going.
Windows & Doors Near Los Angeles - Our Service Area

We serve Los Angeles and the surrounding metro, including the neighborhoods and cities where our crews work most often: Pasadena, Glendale, Burbank, Long Beach, Santa Monica, Torrance, and down into Orange County. Our home page lists the full service area for all seven trades. If you’re in the San Fernando Valley, the Westside, or South Bay, we can usually schedule the measure-and-document visit within the week. We also run dedicated pages for Windows & Doors in Houston and Windows & Doors in San Antonio if you’re comparing markets or have property there.
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

Replacement means removing the old unit to the rough opening, inspecting and repairing the framing if needed, setting the new unit square and level, insulating the perimeter gap, and sealing the exterior against water intrusion. You get the manufacturer’s warranty, our 365-Day Done Right Promise, and a photo record of the work. Call (470) 298-9650 for a written scope rather than a verbal description.
A typical single window or door takes half a day to remove and set. A whole-house window replacement with 10 to 15 openings usually runs three to five working days, depending on how much framing repair we uncover. The quote includes the schedule, and we don’t start until the materials are in hand.
Window replacement runs $5,310-$17,700; impact windows run $9,440-$29,500 for a whole house. The exact number depends on opening count, frame material, and glass package. Call (470) 298-9650 and we’ll give you a written line-item price, not a ballpark.
Yes. We install and replace units from Milgard, Andersen, Pella, and other major manufacturers, and we name the brand and model in your written quote. The warranty paperwork you receive comes from the manufacturer, and we back the labor with our 365-Day Done Right Promise.
If a window is broken and the opening is exposed, a live person answers our phones 24/7 and we can board the opening and schedule a measured replacement. Impact glass takes longer to source than standard units, so the written quote will show the lead time for the exact model you need.
You get the manufacturer’s warranty on the units themselves plus the Rowan Construction Group 365-Day Done Right Promise in writing. If the installation isn’t done right within the first year, we make it right at no cost. No asterisk, no handshake.
Clear furniture away from the opening enough for a ladder and a drop cloth, and remove curtains or blinds so the crew has clean access. We protect the floor and haul away the old units. You’ll get a photo record when the job is done, and the written quote you signed will match the final invoice unless you approved a written change order.
Schedule Your Windows & Doors Service in Los Angeles Today
Call (470) 298-9650 and describe what you’re seeing. We’ll schedule a measure-and-document visit, hand you a written price with the brand names and glass packages listed, and never start a single change without your signature. The estimate is free, the price is flat, and the record is yours. That’s how we’ve done 4,000-plus jobs since 2007, and it’s how we’ll do yours.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Los Angeles since 2007.







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