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 estimateFast, Reliable Window Installation Across Houston
Window installation in Houston runs $600 – $1,800 per opening for most retrofit and full-frame replacements, with impact-rated units starting around $1,200. We schedule Houston jobs Monday through Saturday, and our crews know the difference between a Heights bungalow and a Katy brick veneer build because we work both every week. Call (254) 401-4583 for a written quote before any work starts.
Key Takeaways
- Full-frame window installation in Houston typically runs $800 – $1,800 per opening when new framing, flashing, and interior trim are needed; retrofit inserts run $600 – $1,200.
- Houston’s clay soils shift window openings out of square over time. We check every jamb for racking before ordering glass, so the new unit actually fits.
- Permits matter here. Houston requires them for window replacement, and opening a wall often triggers energy code upgrades your old windows never met.
- Wind-driven rain, not standing water, is the number one cause of window leaks in Houston. Proper head flashing and sill slope are what keep your drywall dry.
- Our crews follow the C.A.R.E. values on every job: Clean up, Ask before touching, Respect your time, Explain the price. Shoe covers and drop cloths are standard, and we send a photo of the cleanup before we leave.
Styles & brands we work with
Why Lightwell Windows Houston Is Houston’s Preferred Window Installation Company
Lightwell Windows Houston is an independently owned and operated part of the Cedarwell network, operating to the Cedarwell Care Promise since 2010. We carry eight manufacturer brands, including CWS and ES Windows, so the recommendation fits the house instead of the installer’s preferred vendor. Keith Yamada leads our Houston team, and he answers for every job we put our name on. A light well is what brings daylight deep into a building, and that is what a well-installed window should do for your home.
Houston homeowners tell us the same stories: a crew that left dust on the floors, moved furniture without asking, or handed over a final bill that did not match the estimate. We built our process around not being that crew. Every job gets a written price before work begins, with the 365-Day Done Right Promise stamped on it. If the finished work is not right, we make it right. No debate, no countdown.
Our technicians are background-checked and uniformed, so you know who is at your door before they knock. They follow the C.A.R.E. values on every visit: Clean up like it is our own home, Ask before we move or touch anything, Respect the family’s time and quiet hours, and Explain the price before the work. When quiet tools matter because a baby is napping, we use them. When a pet-safe sealant is available, we choose it.
Casement Windows in Houston
Casement windows in Houston cost $900 – $1,600 per opening installed, with the higher end covering full-frame replacement and impact-rated glass. A casement window hinges on one side and cranks outward, which makes it the tightest-sealing operable window you can buy. In a city where wind-driven rain pushes against window seals during every thunderstorm, that matters more than most people realize.
Why Houston Homeowners Choose Casements
Casement windows seal on all four sides when closed, unlike sliders and double hung windows that rely on overlapping sashes. During a Houston downpour, the wind presses the sash tighter against the weatherstripping rather than finding a gap to push through. For west-facing walls in Katy and Memorial that take the brunt of afternoon storms, this is the window we recommend most often.
Where Casements Work Best in Houston
Kitchens, bathrooms, and any room where reaching over a counter or sink makes a crank easier than lifting a sash. In older Houston homes with original aluminum sliders, swapping to casements often improves both the seal and the sightline. We install them with continuous head flashing and a sloped sill pan so water drains outward, not into the wall cavity.
Double Hung Windows in Houston
Double hung windows in Houston run $750 – $1,400 per opening for standard sizes, with full-frame replacements on older homes typically landing between $1,000 and $1,600. A double hung window has two sashes that slide vertically, which makes it the most common replacement choice for Houston’s brick veneer and wood frame houses built from the 1970s onward.
Replacing Original Aluminum Single-Panes
The aluminum single-pane windows in many Houston homes were never meant to handle this humidity. Seal failure fogs the glass, and the thermal cycling from hot afternoons to cool AC nights eventually separates the panes. We replace them with insulated glass units that hold their seal and keep the SHGC low enough that the AC does not run constantly.
When the Opening Is Out of Square
Houston’s clay soils expand and contract with moisture, shifting slab foundations enough to move window openings. Before we order glass, our crews check every jamb for racking. If the opening has moved, we adjust the frame or correct the rough opening so the new window operates properly and drains correctly. Skipping this step is how a new window ends up sticking or leaking within a year.
Trusted Brands We Service in Houston
Lightwell Windows Houston carries a curated lineup of eight manufacturer brands, and for Houston’s humidity and storm exposure we lean on CWS, ES Windows, and ECO Window Systems across most installations. CWS builds impact-rated units tested for coastal wind loads, which matters in a city that takes hurricane-season warnings seriously. ES Windows offers the thermal performance needed for our long, hot summers. Because we stock local parts for these lines, warranty service and follow-up work in Houston does not wait on a truck from out of state. Our Window Installation team can walk you through the differences between brands without pushing one over another.
See the difference
Before
After
Before
After
Before
AfterCommon Window Installation Problems We See in Houston Homes
- Wind-driven rain pushing past poorly lapped head flashing. On west-facing walls in Katy, water gets behind the flashing, soaks the sheathing, and a musty smell rises from the wall cavity on the first humid day after a dry spell. The fix is a continuous metal head flashing that laps over the window flange and tucks behind the weather barrier.
- Fogged glass from thermal cycling. An aluminum single-pane in Memorial loses its seal, the panes fog, and the AC runs constantly because the solar heat gain coefficient is shot. Houston’s swing from hot afternoons to cool interiors kills seals faster than most climates.
- Vinyl retrofits mounted over rotted wood jambs. In the Heights and older bungalow neighborhoods, a sash pack installed over a rotten jamb lets moisture wick into the frame. The drywall below the sill blisters, and by then the damage is inside the wall.
- Out-of-square openings from shifting clay soil. Houston’s soils expand and contract with moisture, and slab foundations move enough to rack window openings. A jamb-by-jamb check catches this before glass gets ordered, so the new window operates and drains the way it should.
Pricing for Window Installation in Houston, TX
| Job Type | Typical Cost per Opening |
|---|---|
| Retrofit insert, standard vinyl or aluminum | $600 – $1,200 |
| Full-frame replacement, standard double hung | $1,000 – $1,600 |
| Impact-rated unit, coastal code | $1,200 – $2,400 |
| Casement window, operable | $900 – $1,600 |
| Rot or termite repair to rough opening | $250 – $600 |
What moves the price is the condition of the opening once the old window comes out. Rotted jambs, termite damage, or a rough sill that settled half an inch all cost extra to correct, and we write those allowances into the contract before work starts. If we find something unexpected, you get a photo and a written price for the correction before we touch it. Call (254) 401-4583 for an exact quote. Estimates are free, and the price you approve is the price you pay.
We Also Serve Cities Near Houston
Our crews serve the full Houston metro, including Galena Park, South Houston, Spring, and Pearland. If your home sits in one of those communities, scheduling works the same way: a written quote before any work, a uniformed crew on site, and the same 365-Day Done Right Promise. Call (254) 401-4583 to book your free estimate.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston 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 Installation in Houston
Houston’s clay soils shift with moisture, which moves slab foundations enough to rack window openings out of square. On older homes, we check every jamb before ordering glass, because a window ordered to the original dimensions may not seat or drain correctly in an opening that has moved. If the opening has racked, we correct the framing or adjust the install method, and that cost is written down and approved by you before any work proceeds. Call (254) 401-4583 and we will check your openings as part of the free estimate.
The most common finds are rotted or termite-chewed jamb framing, a settled rough sill, and flashing that was never lapped correctly. We opened a bungalow in Montrose to replace two double hung windows and found the original jamb framing chewed by termites, with the rough sill settled half an inch. We sistered pressure-treated framing, flashed the opening with a continuous slope into the brick veneer, and documented the correction for the city inspector before closing the wall. Any surprise like that gets a photo and a written price before we proceed. Call (254) 401-4583 for an estimate that accounts for what we actually find.
Houston requires a permit for window replacement because a window is part of the building envelope, and a bad install can let water into the framing. Opening a wall often triggers energy code requirements your older windows never met, like a minimum SHGC and U-factor. We pull the permit, coordinate the inspection, and make sure the finished opening passes before we close the wall. No upgrade gets made without a written price first.
A properly flashed Houston window has a continuous head flashing that laps over the window flange and tucks behind the weather barrier, plus a sloped sill pan that drains water outward. The point is to stop wind-driven rain before it reaches the sheathing. In our climate, even a small intrusion fosters mold within weeks. We flash every opening this way, regardless of whether the window is impact-rated, because the flashing is what keeps the wall dry.
Impact-rated windows in Houston run $1,200 – $2,400 per opening, and besides storm protection you get better sound deadening, lower air leakage, and often a lower insurance premium. For homes in the hurricane wind zone, the laminated glass stays in the frame even if debris hits it, which keeps wind pressure from pressurizing the house and blowing the roof off. If the budget allows, we recommend impact-rated glass on any opening that faces the prevailing storm direction. Call (254) 401-4583 for a written quote on impact-rated windows for your home.
Contact Lightwell Windows Houston
If you are pricing window installation in Houston, call (254) 401-4583 and we will send a uniformed technician to inspect your openings, measure your glass, and give you a written price before any work starts. Shoes covers and drop cloths on every visit, pet-safe products wherever there is a choice, and a photo of the cleanup before we leave. Keith Yamada and the Lightwell Windows Houston team answer for every job.
Written by Keith Yamada, Owner at Lightwell Windows Houston, serving Houston and the surrounding metro.
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.