Window Replacement in Los Angeles - Free In-Home Measure, Written Price

Trusted Window Replacement for Los Angeles Homeowners

Los Angeles Window Replacement is rarely just about the glass. It’s about a sash that sticks every July when the marine layer burns off and the frame swells. It’s about the draft along the floor in January that no weather stripping seems to stop. It’s about the seal that failed two winters ago and left a permanent fog between the panes. We started Westlight Windows Los Angeles in 2009 to take the guesswork out of this job, and since then we’ve replaced windows in homes from Playa del Rey to South Pasadena, carrying eight manufacturer lines so the product matches the house instead of the other way around. Owen Satterfield runs our Los Angeles operation the way he has for more than fifteen years: written price first, real arrival window, clean job site, and a guarantee in writing before the first screw turns. To talk through your project, call (213) 810-3461 and speak with a live person, any hour.

Call (213) 810-3461

Energy Efficient Windows

Energy Efficient Windows in Los Angeles are windows built with low-e glass (a thin coating that reflects heat back into the room in winter and back out in summer), argon gas between the panes, and frames engineered to reduce heat transfer. You need them when your air conditioning bill in North Hollywood ticks upward every summer while the unit runs constantly, or when sunlight through a west-facing window in Beverly Hills turns the living room into a greenhouse by 3 p.m. We install energy efficient windows from PGT, CGI, CWS, ECO Window Systems, and ViewLux, and a full-house replacement in Los Angeles generally runs $12,000 to $35,000 installed depending on window count, frame material, and glass package; see our Window Replacement cost guide for more detail. Single energy efficient window replacements typically run $700 to $1,800 installed.

Low-E Glass Options

Low-e coatings come in different strengths for different exposures. On a south-facing wall in Sun Valley, we’ll often recommend a heavier coating to cut solar heat gain. On a shaded north wall in West Los Angeles, a lighter coating keeps more natural warmth without overpaying. We explain the difference in plain terms and show you samples before you commit.

Frame Materials and Ratings

Vinyl frames dominate the Los Angeles market for good reason: they handle coastal moisture in Playa del Rey without warping and cost less than fiberglass or wood. Impact-rated aluminum frames from CGI and PGT make sense for canyon-facing homes in the hills where wind-driven debris is a real concern. We’ll match the frame to the exposure, not just the budget.

Window Repair

Window Repair covers the moving parts and sealing components that wear out long before the glass itself: balances, sash springs, locks, rollers, weather stripping, and the seals between panes. You need repair when a window won’t stay open without a prop, when you can feel air moving around the frame, or when the lock no longer engages properly. Westlight Windows Los Angeles handles these fixes every week, and most window repairs in Los Angeles run between $150 and $600 depending on the part and the window style. The work comes with the same written guarantee as a full replacement.

Hardware and Balance Replacement

A double-hung window that slams shut means the balance system has failed. We replace springs, spiral balances, and block-and-tackle systems with OEM parts from the manufacturer whenever possible. A window that lands hard can crack the jamb and turn a small repair into a larger replacement.

Rot and Frame Repair

Wood frames in older Los Angeles homes, especially in South Pasadena and East Los Angeles where bungalow stock runs deep, eventually rot at the sill where sprinkler overspray or rain collects. We cut out the affected section, treat the surrounding wood, and rebuild the sill with materials that hold up to repeated wet-dry cycles. The goal is a repair that lasts decades, not one you’ll redo in three years.

Window Replacement Company

A Window Replacement Company is a contractor that removes old windows and installs new ones, but the difference between companies in Los Angeles comes down to process. Some send a salesperson with a binder and a vague range. Others quote a number over the phone and revise it at the door. Westlight Windows Los Angeles does neither. We show up in the window we gave you, hand you a written price that doesn’t change, and install windows from eight manufacturer lines with background-checked, uniformed technicians on the job. Full-home window replacement in Los Angeles commonly runs $12,000 to $35,000, with individual windows between $700 and $1,800 installed, depending on size, glass, and frame.

Written Pricing Before Work Starts

Every job we take gets a line-item written price before any work begins. That’s part of the Kingswell Guarantee, and it means the number on the page is the number you pay. If something changes during the job because we found rot or a structural issue, we write up the change and get your approval before proceeding. No door-step surprises.

Background-Checked Technicians

You should know who’s walking through your door. Every technician on a Westlight Los Angeles job is background-checked and wears a company uniform, so there’s no ambiguity when the crew arrives. We schedule arrival windows that are real, call if anything shifts, and show up ready to work.

Window Glass Replacement

Window Glass Replacement means replacing the glass unit inside an existing frame, usually because the glass cracked, shattered, or lost its seal. You may not need a new window; many times the frame is fine and only the glass needs swapping. In Los Angeles, replacing a single pane or insulated glass unit typically costs $250 to $750 installed, depending on glass type, thickness, and whether it’s tempered or impact-rated. Westlight Windows Los Angeles measures, orders the correct glass from our manufacturer lines including PGT and CWS, and installs it with the same written guarantee as a full window replacement.

Insulated Glass Unit Replacement

When the seal between two panes fails, the unit fogs and cannot be cleaned from either side. The fix is replacing the entire insulated glass unit, not just one pane. We match the original glass thickness, spacer color, and low-e coating so the replacement blends with the surrounding windows. Prices for insulated glass units in Los Angeles typically run $350 to $750 per unit installed.

Impact Glass Replacement

If you have impact-rated windows from PGT or CGI and a pane cracks, a standard replacement won’t maintain the rating. We source genuine impact glass from the same manufacturer so your window still does the job it was installed to do. This matters on homes in the Santa Monica Mountains and other wind-exposed areas where original impact ratings are part of the home’s protection plan.

Window Sash Replacement

Window Sash Replacement is replacing the movable part of the window, the frame that holds the glass, while keeping the main window frame in place. You need it when the sash itself is warped, cracked, or too deteriorated to hold hardware securely, but the surrounding frame is still structurally sound. In Los Angeles, sash replacement typically runs $350 to $900 per sash depending on material and window style. We handle sash replacements for double-hung and casement windows, matching the original manufacturer whenever possible and building custom sashes when the original line has been discontinued.

Double-Hung Sash Replacement

Double-hung windows have two sashes that move independently. When one sash rots or cracks, replacing just that sash is often faster and cheaper than a full window replacement. We fabricate the new sash to match the existing profile and install new balances so both sashes ride smoothly. The typical cost for one double-hung sash in Los Angeles runs $350 to $600.

Casement Sash Repair and Replacement

Casement sashes swing on hinges and lock with a crank mechanism. When the sash is bent or the hinge screws have stripped the wood, the sash needs rebuild or replacement. We replace the sash, address the underlying hinge mounting, and make sure the window closes tight against its weather stripping. A crank that suddenly turns hard is usually the first sign the sash is out of square.

Window Glass Repair

Window Glass Repair addresses damage to the glass itself: cracks, chips, and small punctures that haven’t spread through the entire pane. Not every piece of damaged glass needs replacement; small impact chips from lawn mowers or errant rocks can sometimes be filled and stabilized. When the crack is longer than a few inches, has reached a corner, or appears in a pane larger than a square foot, replacement of the pane is the safer and longer-lasting fix. In Los Angeles, minor glass repair runs $120 to $300 when repairable, while glass replacement runs $250 to $750. Westlight Windows Los Angeles evaluates the damage and gives you a straight answer about which path makes sense financially and structurally.

Crack Assessment

A crack that’s growing means stress in the glass or movement in the frame. We trace the crack, look at the corners, and check whether the window is under pressure from a settling frame or a damaged sash. The cause matters as much as the glass; replace the pane without fixing the underlying issue and you’ll be dealing with another crack within a season.

Tempered Glass Requirements

Los Angeles code requires tempered glass in specific locations: within 24 inches of a door, in windows close to the floor, and in certain bathroom applications. If a tempered pane breaks, we verify the replacement is marked tempered and meets the same code the original glass met. It’s one of those details that matters during an inspection, and we don’t skip it.

Window Pane Replacement

Window Pane Replacement is the process of removing a damaged pane, cleaning the glazing channel, and installing a new pane sealed against the elements. You need it when the glass is cracked, shattered, or so heavily etched by years of coastal salt air in Hermosa Beach or Manhattan Beach that visibility is gone. In Los Angeles, single pane replacement typically runs $250 to $600 installed, while insulated glass units run $350 to $750. We carry glass through our six glazing-capable manufacturer lines and can match most original panes by thickness, tint, and coating.

Single Pane Replacement

Older homes in West Hollywood and Mid-City still have single-pane windows, and replacing one pane is straightforward work. We remove the old glazing, clean the channel, set the new pane with fresh glazing compound, and make sure it’s seated square. The window should look like the replacement never happened once the compound cures.

When Replacement Beats Repair

Sometimes the pane is fine but the frame around it has rotted or the seal system has failed repeatedly. At that point, pouring money into pane replacement doesn’t make sense. We’ll tell you when a full window replacement costs less over five years than repeated pane jobs. That’s straight talk, and we mean it.

Window Seal Repair

Window Seal Repair addresses the seal between glass panes and the seal between the window frame and the rough opening. When the seal between panes fails, moisture gets trapped and the glass fogs permanently. When the frame seal fails, air and water move around the window. Seal repair in Los Angeles typically costs $150 to $500 depending on whether we’re re-sealing the frame or replacing a failed insulated glass unit entirely. Westlight Windows Los Angeles inspects the full window, identifies which seal failed, and fixes the actual problem rather than masking it with caulk.

Failed Glass Seal Diagnosis

Fog between the panes means the glass seal has failed and the unit needs replacement; you can’t clean the inside. If the fog disappears on warm afternoons and returns on cool mornings, it’s still a failed seal, just a slower leak. We measure, order the replacement unit with matching low-e coating, and install it under the same written guarantee.

Air Infiltration Around Frames

Drafty windows often mean the original frame seal has dried out or the window wasn’t flashed properly when installed. We inspect the exterior trim, the interior casing, and the gap between frame and rough opening. When the fix is re-sealing and re-flashing, we do it. When the window was installed wrong from the start, we’re honest about what a correction requires.

Brands We Service

We carry and install PGT windows, including the impact-rated WinGuard line that homes in wind-exposed areas of Los Angeles rely on. We’ve installed and serviced CGI windows for years, especially their impact-rated aluminum lines for homes in the hills and canyons. CWS is another brand we work with extensively, offering solid vinyl windows in a range of styles and price points that fit Los Angeles bungalows and mid-century homes alike.

ViewLux rounds out our line with fiberglass frames that handle thermal swings well. Whether you have PGT, CGI, CWS, ViewLux, or any other make, we can help. Our technicians know these brands’ hardware, glazing, and failure points, so the diagnosis is faster and the repair is done right the first time.

Signs You Need a Pro Right Now

• Visible rot on a sill or frame. Rot spreads, and in a damp winter, it can travel from the sill into the wall sheathing behind it. A rotted sill in an East Los Angeles bungalow means water is already where it shouldn’t be. The sooner it’s cut out, the less the repair costs.
• Fog between the panes that never clears. This means the glass seal has failed, and the insulating value of that window is gone. The window still works as a barrier but the gas fill is gone and the view is permanently hazed. Replacement is the fix.
• Windows that stick, slam, or won’t stay open. A window that won’t stay open is a hazard in an earthquake, and a window that slams can break glass or crush fingers. Balance and hardware failures are repairable and should be addressed before they cause injury or damage.
• You can feel a draft two feet away from the glass. That’s not a small leak; that’s a significant air-infiltration problem. Your HVAC system is working to condition air that’s escaping through the frame. Sealing the leak often pays for itself in a single cooling season in Los Angeles.
• Condensation on the inside of the glass on cold mornings. Inside condensation means the interior surface of the glass is cold enough to pull moisture out of the air, which points to a thermal problem with the window. It can also lead to mold on the sill and casing. A replacement window with a proper thermal break ends it.

Our Process, Step by Step

1. 1
   Call and schedule a walkthrough. A live person answers, day or night. We learn the basics over the phone: how many windows, what style, and what’s going wrong. Then we schedule a time that fits your schedule and give you an arrival window we actually keep.
2. 2
   On-site inspection and measurements. A Westlight Windows Los Angeles technician walks every window with you, checks the frames, sashes, seals, and glass, and measures each opening precisely. We use moisture meters on wood frames to find rot that’s hidden under paint, and we check square, plumb, and level on every opening so the new windows fit correctly.
3. 3
   Written line-item price. You get a printed price before any work starts, broken down by window and by line item. The number doesn’t change at the door. If we find something during installation that requires additional work, we stop, explain what we found, and get your written approval before proceeding.
4. 4
   Removal and installation. The crew removes the old windows, inspects the rough opening for rot or damage, installs the new windows with proper flashing and insulation, and trims out both sides. We protect the work area with drop cloths and clean up daily. The site is left cleaner than we found it.
5. 5
   Walkthrough and written guarantee. After the final window goes in, we walk the entire project with you, show you how each window operates, and hand you the written Kingswell Guarantee. That’s the 365-Day Done Right Promise: if it’s not right within the guarantee period, we come back and fix it at no charge. No negotiating, no fine print.

How Much Does Window Replacement Cost in Los Angeles?

Our Service Area Near Los Angeles

Westlight Windows Los Angeles serves homeowners across the Los Angeles basin. We work regularly in East Los Angeles, where bungalow-era frames dominate. We’re in West Hollywood for mid-century and Spanish-style homes, and we cover Window Replacement in Los Angeles across North Hollywood, Santa Monica, Manhattan Beach, West Los Angeles, Playa del Rey, Beverly Hills, Sun Valley, South Pasadena, and Hermosa Beach. Typical lead times for an estimate are one to two business days, and we schedule installation windows that account for your neighborhood’s access and parking constraints. Call (213) 810-3461 and we’ll confirm availability in your area.

Frequently Asked Questions About Window Replacement in Los Angeles

Schedule Your Window Replacement Service in Los Angeles Today

Call (213) 810-3461 to schedule your free, no-obligation estimate. You’ll speak with a live person, get a real arrival window, and receive a written price before any work starts. Owen Satterfield and the Westlight Windows Los Angeles team have been replacing windows across this city since 2009, and every job comes with the Kingswell Guarantee in writing. Call today.

Written by Owen Satterfield, Owner at Westlight Windows Los Angeles, serving Los Angeles since 2009.