Window Replacement Cost - Free In-Home Measure, Written Price

How Much Does Window Replacement Cost in Houston?

Most Houston homeowners pay between $450 and $1,200 per window for full-frame replacement in 2026, with retrofit installations running $350 to $900 per window. A typical 8-window single-story home in Houston lands between $3,600 and $9,600 total. The final number depends on frame material, glass package, window count, and whether you’re in a flood-zone area that requires impact-rated products.

These numbers come from the work we quote and install across Houston every week. We’re Owen Satterfield and the team at Westlight Windows Houston, and we’ve been replacing windows in this market since 2009. Below you’ll find the real window replacement price breakdown, the factors that move the number up or down, and what you should expect from any contractor before you sign anything.

Window Replacement Cost Breakdown (2026)

Here’s what we’re quoting in Houston right now, based on the eight manufacturer lines we carry and install. These are installed prices, including labor, trim work where needed, haul-away of the old sashes, and cleanup.

A full-house job in Houston’s inner-loop neighborhoods like Montrose, Timbergrove, or The Heights typically runs $7,000 to $12,000 for 10 to 14 windows. Out in Katy, Cypress, and The Woodlands, homes tend to have more windows and larger openings, so totals of $12,000 to $18,000 are common. If you’re in a designated wind-borne debris zone south of I-10 or near Galveston Bay, plan for impact-rated product pricing.

What moves the number? Three things, mostly:

• Frame material. Vinyl is the value leader in Houston because it handles humidity without rotting and costs less to produce. Aluminum runs about 20% to 40% more but offers narrower sightlines. Wood is the premium option, and in Houston’s climate it needs a cladding layer or it will swell and fail within a few seasons.
• Glass package. Single-pane glass is rare in new Houston installations. Most homeowners choose double-pane with low-e glass (a thin coating that reflects heat back into the room in winter and out in summer). Upgrading to a low-e argon-filled unit adds $60 – $120 per window and pays for itself in cooling costs within a few Houston summers.
• Install method. A retrofit (also called an insert or pocket install) reuses your existing frame. It’s faster and cheaper but only works if the frame is still square and dry. Full-frame replacement removes everything down to the rough opening. In Houston, where we see rot and termite damage around older wood frames in neighborhoods like Oak Forest and Garden Oaks, full-frame is often the only honest option.

What Affects Window Replacement Pricing in Houston

Houston is not Dallas, and it’s not Phoenix. The specific conditions here change what windows cost and which ones actually last. Here are the factors we talk through on every quote call.

• Hurricane and wind-load requirements. Houston straddles several Texas Department of Insurance wind zones. Homes in designated catastrophe areas along the southeast belt and near the ship channel must meet stricter wind-load and impact standards. We carry PGT and CGI, both Miami-Dade and TDI approved, and those units run higher than standard vinyl simply because the glazing and framing are engineered to take a 2×4 at speed.
• Humidity and mold pressure. Houston’s average relative humidity sits above 70% most of the year. That means frames, seals, and flashing systems fail faster here than in dry climates. We see failed seals in Bellaire and West University regularly, usually from low-grade vinyl that warped or cheap glazing that lost its inert gas. Paying for a quality frame and a solid low-e package up front is cheaper than replacing a fogged unit in year three.
• Window size and story height. Standard double-hungs and sliders at ground level are the cheapest to replace. Picture windows, bays, bows, and anything above the second floor adds scaffolding or ladder work, and in Houston’s summer heat, that labor cost is real. A second-story replacement in a Kingwood or Clear Lake two-story can add $75 – $150 per window in labor alone.
• Frame condition. Older Houston homes built in the 1950s through 1970s often have wood frames with rot you can’t see until the old window comes out. When we find rot, sill repair or full-frame replacement is required. We flag this before you commit, not after. That’s part of our written-price promise: the price we quote is the price you pay, and if we find something that changes scope, we stop and talk to you first.
• Permit requirements. The City of Houston requires a permit for most window replacement work, and some municipalities in the metro area (Sugar Land, Pearland, Pasadena) have their own rules. Permits typically cost $50 – $250 depending on the scope. We handle permitting on every job, and the permit fee is included in the written price we hand you before any work starts.
• Historical district restrictions. If your home is in a designated historic district like Houston Heights, the city may require window styles and materials that match the original architecture. That often means wood or wood-clad windows instead of vinyl, which pushes per-window cost toward the $900 – $1,800 end of the table above. We’ve done this work in The Heights and understand the approval process.

For a fuller picture of how we approach a full-home window project in this market, read our Window Replacement in Houston guide. It covers the install process step by step and what to expect from your first call to the final walkthrough.

How to Save on Window Replacement

Saving money on windows doesn’t mean buying the cheapest unit you can find. The cheap vinyl window installed wrong costs more than the mid-grade window installed right. Here’s how to spend less without cutting corners you’ll regret.

• Replace in phases, but plan for all of it. If your budget is tight, replace the west- and south-facing windows first. In Houston, those take the hardest sun load and show the biggest energy difference. A phased approach works, but ask your contractor to quote the full project up front so you lock in the per-window price for later phases.
• Choose retrofit where the frames are sound. If your existing frames are dry and square, a retrofit saves 20% to 35% versus full-frame. We’ll tell you honestly whether your frames qualify. If they don’t, we won’t sell you a retrofit that will leak in two years.
• Don’t overpay for impact rating you don’t need. Impact-rated windows are essential in some Houston zones and optional in others. If you’re in a standard inland neighborhood like Spring Branch or Meyerland, a quality non-impact low-e unit will save thousands and still meet code. We’ll check your address against the wind zone map and tell you what’s actually required.
• Look at ENERGY STAR and local utility rebates. CenterPoint and Texas Gas Service occasionally run rebate programs for qualifying low-e window replacements. These programs change, but a $100 – $300 rebate per project is common when available. We’ll point you to the current programs when we quote.
• Get a written price and hold the contractor to it. The most expensive window job in Houston is the one where the price changes at the door. Every Westlight quote includes a written price before work starts. No revised invoices. No “we found something” surprise charges. If the scope changes, we stop, show you what we found, and get your approval before moving forward. That’s the Kingswell Way: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails.

Call us at (325) 326-4211 for a free estimate. A real person answers, day or night. You’ll get a straight number, not a pressure pitch.

FAQs – Window Replacement Cost

How much does it cost to replace one window in Houston?

A single vinyl retrofit window in Houston costs $350 to $550 installed. A full-frame vinyl replacement runs $550 to $900, and an impact-rated unit runs $850 to $1,600. The final number depends on the window size, the frame condition, and whether your home’s location requires wind-rated glass. Call (325) 326-4211 and we’ll give you a written quote for your exact window, no charge.

Is it cheaper to repair a window than replace it?

For a broken seal or a failed balancer, repair typically runs $120 to $400 per window. If the frame is warped, rotted, or the glass package is 15+ years old, replacement is usually cheaper over the long run, because repair costs stack up. In Houston’s humidity, a failed seal that’s been fogged for more than a season usually means moisture has already damaged the sash. We’ll tell you straight whether repair is worth it. Call (325) 326-4211 and describe what you’re seeing; we’ll give you an honest recommendation over the phone.

How much does it cost to replace all windows in a 3-bedroom house in Houston?

Most 3-bedroom Houston homes have between 8 and 14 windows, and a full replacement typically runs $4,800 to $13,500 depending on frame material and glass package. A standard vinyl full-frame job on a 10-window house lands around $6,000 to $9,000. The same job with impact-rated PGT or CGI units runs $9,000 to $16,000. For a specific number on your home, call (325) 326-4211 for a free estimate with a written price.

Are impact windows required in Houston?

Impact windows are required only in designated wind-borne debris zones, which cover parts of Houston and Harris County along the southeast side and areas near the coast. Most homes in the city of Houston are outside these zones, but it depends on your specific address and the code version in effect. We check the TDI wind zone map for every quote call. If you don’t need impact glass, we’ll tell you and won’t upsell you on it. Call (325) 326-4211 and give us your address; we’ll check it while you’re on the phone.

How long does window replacement take in Houston?

Most single-home window replacements in Houston take 1 to 3 days of on-site work. A standard 8 to 10 window full-frame job is a two-day project for our crews. Impact-rated and historic-district projects can run 3 to 5 days because of heavier materials and stricter installation requirements. We give you a committed arrival window when we schedule, and we show up in the window we gave. Call (325) 326-4211 to schedule a free estimate and get a timeline for your home.

What to Look for Before You Hire Someone in Houston

Houston has more window contractors than any metro area in Texas, and the gap between the best and the worst is wide. Before you sign anything, ask for the following. If the contractor balks at any of these, walk.

• A written price, not a verbal one. Every Westlight customer gets their price in writing before any work starts. That’s not a perk; it’s the only way you can hold a contractor to their word. We put it in writing and we don’t revise it at the door.
• A real manufacturer, named. We carry eight lines: PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. The right product for your home is the one that matches your wind zone, your frame condition, and your budget, not the one brand the contractor happens to stock.
• A written guarantee with terms you can read. We hand every customer a written guarantee at job completion, and we back it with a 365-Day Done Right Promise. If the work isn’t right within the guarantee period, we come back and fix it at no charge. That includes a free second visit if a repair fails, automatically, no negotiating required.
• Background-checked, uniformed technicians. You should know who’s walking through your door. All of our install crews are background-checked and in uniform. No day-labor unknowns.
• A live person when you call. Our phones are answered by a real human 24 hours a day, 7 days a week. Not a voicemail box, not a chatbot. If you call at 2 a.m. with a window that won’t close after a storm, someone is there to answer and get help dispatched.

Why Houston Homeowners Call Westlight Windows

We’re an independently owned and operated Kingswell location, and we’ve been replacing windows in Houston since 2009. Owen Satterfield leads our team, and the standard we hold ourselves to is simple: the west light, the late-afternoon sun that pours through a good window, is bright and warm and worth doing right.

The Kingswell Guarantee runs on every single job we take:

1. Say the price before the work. Written, exact, no surprises.
2. Show up in the window we gave. If we say Thursday at 8 a.m., we’re there Thursday at 8 a.m.
3. Leave the place cleaner than we found it. No glass shards in the flower bed, no trim scraps under the porch.
4. Put the guarantee in writing. Every customer gets it at completion, with the terms spelled out.
5. Come back if it fails. Within the guarantee period, a failed window or door means a free return visit. The 365-Day Done Right Promise is part of it.

If you’ve been burned before by a no-show contractor or a price that jumped at the door, you’re exactly who we built this company for. We answer the phone, we show up, and we put every promise in writing before the first screw turns.

Ready for a straight number? Call us at (325) 326-4211. The estimate is free, the price is written, and a real person answers. You can also start with our home page to learn more about who we are and how we work.

Pricing reflects the Houston market as of 2026. Westlight Windows Houston offers free estimates – call (325) 326-4211.

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