New Window Installation Cost - Free In-Home Measure, Written Price

How Much Does New Window Installation Cost in Houston?

New window installation in Houston typically runs between $550 and $1,850 per window installed in 2026, with most whole-home projects of 8 to 12 windows landing in the $6,500 to $16,000 range depending on frame material, glass package, and the condition of existing openings. That range covers mid-grade vinyl windows with standard low-e glass up to premium fiberglass or impact-rated units built for Houston’s hurricane season. If you’re replacing windows in an older Heights bungalow or a 1990s build in Katy, your per-opening labor will run higher than a straightforward swap in a newer suburb like Pearland or Sugar Land because older framing often hides rot, termite channels, or out-of-square openings that have to be corrected before new windows go in.

This page is written by Owen Satterfield and the team at Westlight Windows Houston, and it gives you the real numbers we quote on jobs across Harris County every week. No vague “it depends” without figures. By the time you finish reading, you’ll know what a fair price looks like for your neighborhood and your house.

New Window Installation Cost Breakdown (2026)

Here’s what we’re seeing across Houston as of early 2026. These are installed prices, meaning the window itself, the labor to pull the old unit and set the new one, the trim and flashing work, and hauling away the old sashes and frames. They assume a standard rectangular opening with no major structural surprises.

Whole-home projects scale in a band, not a straight line. A 10-window replacement in a 2,100-square-foot home in Clear Lake with mid-grade vinyl and standard low-e glass usually lands between $9,000 and $13,500. The same house with impact-rated PGT windows built for Galveston County wind codes would push closer to $14,000 to $18,000.

What drives the number up or down, in order of impact:

• Window material. Vinyl is the floor. Fiberglass and aluminum-clad wood are the ceiling. In Houston’s humidity, fiberglass holds its shape better over time than wood, which is why many customers in flood-prone areas like Meyerland and Bellaire choose it despite the premium.
• Glass package. Single-pane windows are functionally obsolete in Houston. A standard double-pane unit with low-e glass (a thin coating that reflects heat back out in summer and back in during winter) adds $120 to $250 per window. Argon or krypton gas fill between the panes adds another $80 to $150 per unit.
• Impact rating. If you’re anywhere near the coast, or if your HOA or insurer requires hurricane-rated units, expect to pay 30 to 45 percent more per window. PGT and CGI impact windows carry that premium for a reason: they meet Miami-Dade County test standards, which is the benchmark for windborne debris protection.
• Opening condition. Older Houston homes, especially pre-1970 builds in Garden Oaks, Timbergrove, or Riverside Terrace, frequently have rotted sills, undersized headers, or framing that’s shifted with clay soil movement. Correcting that adds $100 to $400 per opening before the new window goes in.
• Access and height. A first-floor window on a slab house is straightforward. A second-story window on a house with a steep roof pitch in The Woodlands may require scaffolding or a lift, adding $150 to $500 per opening.
• Removal and disposal. Hauling away old aluminum frames and lead-painted sashes from a 1950s ranch in Spring Branch costs more than disposing of standard builder-grade vinyl from a 2005 house in Cinco Ranch. Budget $25 to $60 per window for disposal, though most contractors fold this into the per-unit price.

What Affects New Window Installation Pricing in Houston

Houston is not a generic market. The price you’ll pay here is shaped by things that don’t apply in Dallas or Austin, and understanding them helps you evaluate quotes honestly.

• Hurricane and wind zone requirements. Harris County sits in a mixed wind zone. Homes in Galveston, Clear Lake, League City, and parts of Pasadena fall under Texas Department of Insurance windstorm requirements, which means impact-rated glass and reinforced frames. Those windows cost more, full stop. A standard double-hung might be $800 in Pearland, but the code-compliant impact version of that same size runs $1,300 to $1,500.
• Houston’s clay soil movement. The gumbo clay under most of Harris County expands and contracts with every drought and downpour cycle. Over a decade or two, that movement shifts window openings. We regularly see out-of-square openings in established neighborhoods like Oak Forest and Westbury that require shimming, reframing, or custom sizing. That labor shows up as an extra line item on honest quotes and gets hidden as “miscellaneous” on dishonest ones.
• Heat and humidity loads. Houston’s cooling season runs roughly March through October. A cheap window with a poor solar heat gain coefficient (SHGC) will cost you money every summer month in higher electricity bills. Spending $30 to $60 more per window for a better low-e coating pays for itself in the first two summers.
• Permit requirements. The City of Houston requires a permit for window replacement when the opening size changes or structural work is involved. A straight swap in the same rough opening typically doesn’t need one, but many HOAs in master-planned communities like Sienna or Bridgeland require their own approval process. Permit fees typically run $75 to $250 depending on the scope.
• Lead paint on older homes. Any Houston home built before 1978 may have lead paint on window frames and sills. EPA Renovation, Repair, and Painting (RRP) rules require certified containment and cleanup practices, which adds $50 to $150 per window. If a contractor skips this, they’re breaking federal law and putting your family at risk.
• Second-story and hard access. Houston’s housing stock varies wildly in height and setback. A two-story home in River Oaks or a townhome in Midtown with limited side yard access often means ladders, lifts, or scaffold work, all of which shows up in the labor line.

How Much Does Window Replacement Cost vs. Window Installation?

There’s a distinction worth making. Window replacement means pulling an existing window out of its opening and putting a new unit in the same hole. That’s $550 to $1,850 per window in Houston, as covered above. New construction window installation means cutting into closed wall framing, building a new rough opening, and installing flashing, sealing, and trim from scratch. That runs $900 to $2,400 per window because it involves structural work, drywall repair, new exterior cladding integration, and a permit in most Houston jurisdictions.

Most of what Westlight does in Houston falls into the replacement category because the city has a huge stock of 1970s through 2000s homes whose original windows are failing. If you’re adding a window to a wall that doesn’t have one, that’s a different scope and a higher price, and it’s the kind of job where you want a written quote before anyone touches a saw.

How to Save on New Window Installation

Saving money on windows in Houston doesn’t mean buying the cheapest unit on the shelf. It means spending well on the things that matter and avoiding money leaks on the things that don’t.

• Replace in phases, but plan the whole house. If your budget doesn’t cover all 14 windows at once, do the west- and south-facing windows first. Those take the worst of the Houston afternoon sun, and they’re where you’ll feel the energy savings fastest. Then do the rest next year. Just make sure your contractor is quoting the full house plan so the product stays consistent.
• Don’t overpay for gas fills you don’t need. Argon gas between panes improves insulation, but in Houston’s climate, the low-e coating matters far more than the gas fill for cooling costs. If you’re choosing between a better low-e coating and argon gas, take the better low-e every time.
• Skip the custom sizes when a standard fits. Custom-sized windows carry a 20 to 40 percent premium. If a standard 36-by-60-inch unit works in your opening with minimal shimming, take it.
• Ask for the window-by-window line item. Any contractor who gives you a single lump number without a per-window breakdown is hiding something. You deserve to see exactly where the money goes, and that’s the standard at Westlight: a written price before any work starts, with no door-step revisions.
• Get at least three written quotes, then compare like for like. Ask each contractor to list the exact window brand, model, glass package, and inclusion of trim and disposal. A $9,000 quote with PGT impact glass is a different value proposition than an $8,200 quote with builder-grade vinyl.

Westlight gives free estimates with the exact same written pricing format we use on the job. Call (325) 326-4211 and we’ll walk your house, measure the openings, and put a number in writing before the day is over.

What’s the Difference Between Vinyl, Fiberglass, and Impact Windows?

Every Houston homeowner hits this decision, so here’s the plain version.

Vinyl windows are the workhorse choice. They cost the least, they don’t rot, and modern vinyl from brands like ECO Window Systems and Mr-Glass performs well in Houston’s heat. The downsides: vinyl expands and contracts with temperature swings, which can lead to seal failure over 10 to 15 years, and the frames are bulkier than other materials, which reduces visible glass area.

Fiberglass windows cost 30 to 45 percent more than vinyl but move at nearly the same rate as glass, which means fewer seal failures over the life of the window. They’re stronger, so frames can be slimmer and you get more glass area for the same rough opening. In Houston’s humidity and heat, fiberglass is a smart long-term play if you plan to stay in the house for 15 or more years.

Impact windows are built with laminated glass and reinforced frames designed to withstand hurricane-force wind and flying debris. PGT and CGI are the two brands we install most often in Houston’s coastal-adjacent communities. They cost the most per unit but often earn a discount on windstorm insurance premiums, and they eliminate the need for plywood or shutters during storm prep. If you’re in League City, Dickinson, or anywhere south of I-45’s Clear Lake stretch, they’re worth serious consideration.

Frequently Asked Questions

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

A single standard vinyl window replacement in Houston runs $550 to $1,000 installed for a mid-grade unit with low-e glass. Premium fiberglass or impact-rated windows run $1,100 to $1,850 per window. Call (325) 326-4211 for an exact quote on your specific opening size.

Is it cheaper to repair a window or replace it?

For a failed seal, cracked pane, or single broken sash, repair costs $90 to $350 versus $550 to $1,200 for replacement. But if your windows are more than 20 years old, repairs are a holding pattern, not a solution. You’ll likely spend more patching five old windows over five years than replacing them once.

How much does whole-house window replacement cost in Houston?

For a typical 3-bedroom Houston home with 10 to 14 windows, expect $7,000 to $16,000 for full replacement with mid-grade vinyl, or $12,000 to $24,000 for impact-rated or fiberglass. The spread comes down to window count, size, and material choice.

Can I install new windows myself to save money?

You can buy a replacement window from a big-box store for $200 to $500, but installing it yourself means taking on flashing, sealing, shimming, and trim work, and a mistake in any of those leads to water damage behind the drywall. In Houston’s rain, improper flashing fails fast. Most homeowners hire this out, and the labor cost reflects the skill required to do it right the first time.

Does new window installation require a permit in Houston?

Yes, in many cases. The City of Houston requires a permit when the rough opening changes size or structural framing is involved. Straight same-size replacements generally don’t need a city permit, but many HOAs in planned communities like Kingwood, Clear Lake, and Sienna require architectural approval before installation. A reputable contractor handles this paperwork for you.

How long does new window installation take in Houston?

A crew of two to three installers typically completes 8 to 12 windows in one to two days. Larger projects with structural repairs or impact-rated units can run three to four days. Westlight commits to a specific arrival window in writing before the job starts, so you’re not waiting around guessing.

What’s the best time of year to replace windows in Houston?

Houston’s mild fall and winter months, roughly October through February, are ideal because cooler temperatures make the work more efficient and you’re not opening exterior walls during peak summer heat. But the honest answer is that we install windows year-round in Houston and manage the heat with early start times and staged interior work.

Why Homeowners in Houston Choose Westlight Windows

Owen Satterfield has been doing windows and doors in Texas since 2009, and Westlight Windows Houston carries eight manufacturer lines so we match the product to your house instead of forcing your house to fit one brand. If you’re in the Heights, we’ll spec a double-hung that fits the period. If you’re in Cinco Ranch with full western exposure, we’ll talk low-e SHGC ratings and frame durability. If you’re south of Clear Lake, we’ll quote PGT or CGI impact windows and explain exactly what your windstorm certificate will cover.

The name Westlight comes from the late-afternoon sun that pours through a good window: bright, warm, and worth doing right. That’s the standard we hold every job to, and we put it in writing through the Kingswell Guarantee. Here’s how it works, plain and simple:

• Say the price before the work. You get a written quote before any job begins, and the number on that page is the number you pay.
• Show up in the window we gave. A real arrival window committed in writing, not a vague “sometime between 8 and 5.”
• Leave the place cleaner than we found it. Full debris haul-away on every job, every day.
• Put the guarantee in writing. The 365-Day Done Right Promise covers every window we install for a full year after job completion. If something’s not right, we come back and fix it at no charge, no questions, no negotiating.
• Come back if it fails. Every repair includes a free second visit automatically. If the same issue recurs, you don’t pay for the callback.

Every Westlight technician is background-checked and uniformed, so you know exactly who’s walking through your door. And when you call (325) 326-4211, a real person answers. Not a phone tree, not a chatbot, not a callback service. A live human who can schedule, answer questions, or dispatch help at any hour of the day or night.

We carry PGT and CGI for impact-rated coastal work, ECO Window Systems and Mr-Glass for value-driven vinyl, CWS and ES Windows for premium aluminum and contemporary options, Therma-Tru for entry doors, and ViewLux for specialty glass. Eight lines, one standard of installation.

If you’re comparing Houston window companies, you’ll find plenty who quote low and revise at the door. The Kingswell Guarantee exists specifically so you never have to deal with that again. Written price, committed arrival, clean site, written guarantee. Every job.

Get Your Houston Window Installation Price in Writing

The fastest way to know what your window project costs is to have someone measure it. Call (325) 326-4211 and we’ll schedule a free estimate at your Houston home, walk every opening, and hand you a written price before we leave. No pressure, no door-step revisions, no vague ranges. Just real numbers from a company that’s been doing this in Texas since 2009.

You can also browse our New Window Installation in Houston page for more detail on what a full replacement looks like from start to finish, or head back home to explore our full line of window and door services.

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.