Single hung
Double hung
Horizontal roller
Casement
Sliding glass doors
Impact garage doors
PGT
CGIFree in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Get your free estimateWindow Company in Katy, TX
Katy homeowners call us when windows fog between the panes, doors stick in the humidity, and original builder frames start showing their age. Most of the work we do here falls into three buckets: replacing failed windows, installing new windows in additions or new construction, and replacing exterior doors that no longer close cleanly. Katy’s mix of 1990s and 2000s master-planned homes, Gulf Coast weather, and post-Harvey windstorm codes shapes nearly every recommendation we make. If you’re researching what a window or door project should cost in Katy, a phone call to (254) 401-4583 will get you a written quote, not a ballpark guess.
Why Katy Homes Are Different
Katy grew fast. What was once rice fields is now a run of large master-planned communities: Cinco Ranch, Grand Lakes, Firethorne, and dozens of others along the Grand Parkway and Mason Road corridors. That growth pattern left a specific housing stock: brick veneer and stucco homes built mostly since the 1990s, many with the windows the original developer picked for budget, not longevity. Those aluminum and low-quality vinyl frames are now two decades into a humid subtropical climate that punishes them daily.
We see the same failure patterns over and over in Katy. Insulated glass units lose their seal, desiccant inside the spacer absorbs moisture until it can’t anymore, and the window clouds permanently. Vinyl frames warp under August heat bouncing off brick. Wood doors swell in the humidity and refuse to latch. Along the Mason Road corridor, a 2000s home hitting the twenty-year mark is a prime candidate for a foggy window call. And since Hurricane Harvey, Katy homeowners shopping for replacements are asking harder questions about wind ratings and impact-resistant products, because the code conversation changed after that storm. These conditions are not generic. The product that works well in a dry climate will not be the automatic choice here.
Styles & brands we work with








Our Main Katy Services
Three services make up nearly every project we schedule in Katy. Each has its own dedicated page with deeper pricing, timelines, and what to expect on site.
Window Replacement in Katy
Replacing failed or worn-out windows is the most common call we get from Katy homeowners. The job starts with identifying why the current window failed: seal breach, frame warping, or storm damage. Then we match a replacement product from brands like ES Windows or ECO Window Systems to the home’s style, exposure, and wind-rating needs. We protect floors and furniture during removal, and the crew leaves with the old sashes gone, not stacked by the garage. Read more on our dedicated page: Window Replacement in Katy.

Window Installation in Katy
New window installation in Katy usually means either a home addition or a new build where the owner wants something better than builder standard. We work with the framing as it exists, handle the flashing details that keep Katy’s rain and humidity out, and make sure the product meets current windstorm code where it applies. The same C.A.R.E. standards apply: clean up like it’s our own home, ask before moving anything, and explain the price before the work. Details at Window Installation in Katy.

Door Installation in Katy
Katy’s humidity works against exterior doors. Wood doors absorb moisture and swell; frames shift as the clay soil contracts in summer heat. A door that won’t latch or drags across the threshold is both a security issue and an airflow problem that raises cooling bills. We install doors from Therma-Tru and Mr-Glass lines, with proper sealing and adjustment so the door closes cleanly the day it’s installed and a year later. Learn more at Door Installation in Katy.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Katy
We carry a curated lineup rather than pushing one brand. Katy homeowners have specific needs: wind ratings for hurricane exposure, thermally efficient frames for August heat, and finishes that hold up to humidity. We install and service products from ES Windows, ECO Window Systems, Mr-Glass, and Therma-Tru, among others. If you’re evaluating options, our our brands page walks through the trade-offs.
See the difference
Before
After
Before
After
Before
AfterPricing for Window Company in Katy, TX
The table below reflects what we typically see for common projects in Katy. Every number is a starting point for a written quote, not a final figure we adjust later.
| Service | Typical range in Katy |
|---|---|
| Window replacement (per opening) | $450 – $1,200 |
| Window replacement on a single-story home | $4,000 – $12,000 total |
| Window replacement on a two-story home | $8,000 – $24,000 total |
| Bow or bay window replacement | $1,800 – $4,500 per unit |
| Standard patio sliding door replacement | $1,200 – $3,500 installed |
| Custom window installation (new construction) | $700 – $1,800 per opening |
| Insulated glass unit (IGU) replacement only | $250 – $600 per pane |
| Full frame window replacement (with trim work) | $900 – $2,000 per opening |
What pushes a Katy quote higher is usually the wind rating: post-Harvey code compliance in newer sections of Katy can move a project from standard impact-resistant toward higher-end laminated glass products from CGI or PGT. The other factor is water damage discovered once the old window comes out. We write a quote before any work begins, and if we find hidden rot behind a frame, we stop and show you before we touch anything else. No invoice surprises, ever.
Neighborhoods We Serve in Katy
We work throughout Katy, from the older sections near the city core to the newer builds pushing west and south. The housing stock varies by era and builder, so the right window or door for a 1990s Cinco Ranch home is not automatically the right one for a 2015 Firethorne build.
- Cinco Ranch
- Grand Lakes
- Firethorne
- Cross Creek Ranch
- Nottingham Country
For most Katy neighborhoods, we can get a crew to you within a few business days for an estimate, and scheduling for installation is typically a one-to-three-week window depending on product lead times.
Service Area – Cities Near Katy
While Katy is home base for most of our work, we regularly serve homeowners in nearby communities. If you’re in Stafford, TX, Rosenberg, TX, Missouri City, TX, or Houston, TX, the same written-price promise and clean-up standards apply. Each area has its own quirks, but the C.A.R.E. values travel with every crew.
Serving Katy, TX - Our Local Coverage Area
We’re based in the Katy area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Window Company in Katy
Most window and door replacements in Katy do not require a city permit when the opening size is not changing and the work is like-for-like. When a permit is needed, we handle the application and inspection as part of the written quote. We will tell you upfront if your specific project needs one.
We typically schedule estimates within three to five business days across Katy and the surrounding area. The estimate includes measurements, product options, and a written price before we leave. You’ll know the number before we ever schedule a day for work.
We are an independently owned and operated location within the Cedarwell network, with scheduling coordinated from our Houston office. That means local crews who know Katy’s housing stock and weather, backed by the Cedarwell Care Promise. Call (254) 401-4583 and a live person answers, no phone tree.
If you’re ready to take the next step, call (254) 401-4583 today to schedule your free estimate.
Six Reasons Homeowners Choose Lightwell Windows Houston
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.
Other Lightwell Windows Houston Services
What Neighbors Say About Lightwell Windows Houston
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Katy Customers Say
"Quiet, considerate install of several windows. They cleaned the glass and the sills and vacuumed every room. You'd never know a crew had been through. House is quieter and brighter."
- Brent Sakamoto"Replaced drafty old windows and a back door. The crew was gentle around my mother's antiques, protected everything, and cleaned up beautifully. Home feels warmer and calmer already."
- Walter Prim"Front door replacement. The installers were careful, clean, and gentle, took their shoes off inside and swept the entry when done. The door seals perfectly and looks beautiful."
- Hollis Wyatt