WINDOW
REPLACEMENT
IN KATY, TX
Houston's highest-rated window company. 5.0 stars. Free in-home quotes. Serving Katy homeowners for over 11 years.
Why Choose Us
KATY'S MOST
TRUSTED
WINDOW COMPANY
We're not a big-box franchise or an out-of-town company that parachutes in. Allwin Windows is a family business owned by a Texas A&M architecture graduate who has been personally installing windows across Katy and the Greater Houston area for over 11 years.
Every window we install in Katy is made in the USA — most right here in Texas. We carry a Lifetime Limited Transferable Warranty on every product and every installation.
Women-Owned, Family-Run
You work directly with the owner — no sales team, no upselling.
Perfect 5.0 Google Rating
25 verified five-star reviews from real Katy homeowners.
Architect-Designed Installations
Texas A&M M.S. Architecture — your windows are installed right the first time.
Same-Day Quotes
We come to your Katy home, measure everything, and give you a firm price on the spot.
5.0
25 Google Reviews · Katy Area
What We Do in Katy
OUR SERVICES
Residential Windows
Single-hung, double-hung, casement, picture, bay, and bow windows. Every style and size for Katy homes.
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Energy-Efficient Glass
Low-E coatings + argon gas fill rated for Texas summers. Cut your cooling bill by 20–35%.
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Patio & Entry Doors
Sliding glass, French doors, and energy-efficient entry doors — all professionally installed.
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Plantation Shutters
Interior plantation shutters custom-fitted to your Katy home. Timeless style, perfect light control.
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Recent Project
FULL HOME REPLACEMENT
KATY, TX
Complete window replacement — energy-efficient Low-E glass, lifetime warranty, installed in one day.
Pricing
WINDOW REPLACEMENT
COST IN KATY, TX
Every home is different. Window size, style, glass package, and condition of the existing frame all affect the price. Here's what Katy homeowners typically invest:
These are estimates. Your in-home quote is free and comes with no obligation — we'll give you an exact number before we start.
Common Questions
FAQ
How much does window replacement cost in Katy, TX?
Most Katy homeowners spend between $400–$900 per window installed, depending on size, style, and glass package. A full home replacement (typically 15–20 windows) runs $7,000–$18,000. We provide free, itemized in-home quotes with no pressure — you'll know the exact number before we ever start.
How long does window replacement take in Katy?
Most Katy jobs are completed in a single day. We arrive with your windows pre-measured and ready to install. A full home of 15–20 windows typically takes 6–8 hours. We clean up completely before we leave.
Are your windows energy-efficient for Houston's climate?
All of our windows are rated for Texas heat — that means Low-E glass coatings, argon gas fills, and multi-point weatherstripping designed to handle 100°F summers. Most Katy clients see a 20–35% reduction in cooling costs after replacement.
What neighborhoods in Katy do you serve?
We serve all of Katy, TX including Cinco Ranch, Firethorne, Falcon Landing, Grand Lakes, Kelliwood, Mason Creek, Nottingham Country, Seven Meadows, CrossCreek Ranch, and everywhere in the Katy ISD footprint.
Do your windows come with a warranty?
Yes — every installation comes with our Lifetime Limited Transferable Warranty. That covers both the product and the labor. If it moves with the house when you sell, the new owners are covered too.
Service Area
NEIGHBORHOODS WE SERVE IN KATY
From Cinco Ranch to CrossCreek Ranch, we install windows across all of Katy TX — including zip codes 77450, 77494, 77493, 77449, and 77084.
Ready to Start?
GET YOUR FREE
KATY
QUOTE TODAY.
We'll come to your home anywhere in Katy — Cinco Ranch, Firethorne, CrossCreek Ranch, or anywhere in between. We measure, recommend, and price everything on the spot. No pressure, no obligation.
Call or Email Us
Tell us what you're looking for. Takes 2 minutes.
Free In-Home Quote
We come to your Katy home and give you an exact price.
Sit Back & Enjoy
We install everything in one day. Lifetime warranty included.
Call Us — Free Quote
(713) 819-7597
Call for a same-day quote
Email Us
melissa@allwinhouston.com
We reply within a few hours
FREE
In-Home Quote
5.0
Google Rating
∞
Lifetime Warranty