New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows Houston pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Fast, Reliable Door Installation Across San Leon
Door installation in San Leon runs $900 – $4,800 for most homes, depending on whether you’re replacing a single entry door or a full sliding glass unit on a bay-facing elevation. We’re Westlight Windows Houston, and we’ve worked on enough piling homes off Bayshore Drive and 9th Street to know that a door here isn’t just a door - the same way our Window Installation in San Leon handles the same salt-spray, wind-load conditions. It’s a salt-spray, wind-load, and waterproofing challenge. Call (325) 326-4211 for a written quote before any work begins.
Why Westlight Windows Houston Is San Leon’s Preferred Door Installation Company
San Leon homeowners call us because we answer the phone. A real person picks up at (325) 326-4211, 24 hours a day. That matters when a corroded slider jams open during a squall off Galveston Bay and rain is blowing into the living room. Owen Satterfield built this company in 2009 on a simple promise: the price we write down is the price you pay. We don’t revise invoices at your front step.
Our techs know the difference between a 1950s fishing shack on pilings and a newer elevated stilt home near the Dickinson Bayou shoreline. We show up in the window we give, leave the site cleaner than we found it, and put the Kingswell Guarantee in writing on every job. That guarantee means a written price before work starts, a committed arrival window, a clean job site, and a written guarantee on the completed work. If a repair fails within the guarantee period, we come back and fix it at no charge. The 365-Day Done Right Promise is part of every door we hang in San Leon.
Door Replacement in San Leon
Door replacement in San Leon typically means pulling a corroded, warped, or leaking unit and installing one that can handle salt air, humidity, and the next named storm. Most single entry door replacements here run $900 – $2,600, including new jambs, threshold flashing, hardware, and haul-off. If the opening needs reframing because wind load flexed the rough opening, expect to add $300 – $800.
We see the same failure pattern on bay-facing elevations throughout San Leon: raw steel hinges and screws oxidize in under two years, so the door sags and binds. Homeowners think the slab shifted. The real culprit is the salt. That’s why we specify stainless steel hardware and corrosion-resistant sills on every exterior door we install here, not just the ones facing the water.
Entry Doors Built for Galveston Bay Conditions
A front door in San Leon takes direct hits from southeast winds carrying salt spray off the bay. We match the door to the exposure: impact-rated glass where code requires it, and composite or fiberglass door slabs that don’t swell in the humidity the way wood does. Therma-Tru entry systems have held up well for our San Leon customers, especially the fiberglass lines with adjustable sills and stainless steel hinges.
French and Double Door Sealing
French doors look great on a bayside wall, but the center seam where the two panels meet is the most common leak point we repair in San Leon. Wind-driven rain working against that joint will find any gap in the weatherstripping. We rebuild the center mullion, install new interlocking astragals, and use high-capacity drain channels under the sill pan so water that does get past the seal flows back out instead of into the subfloor. Budget $1,800 – $4,200 for French or double door replacement on an exterior elevation in San Leon.
Sliding Glass Door Replacement in San Leon
Sliding glass door replacement in San Leon runs $1,200 – $5,500 installed, depending on the door width, glass package, and whether the rough opening needs structural reinforcement. The original aluminum sliders on 1960s beach houses have tracks that salt air eats through within a decade. The door sticks, the rollers grind, and eventually the panel won’t latch.
On a 1960s beach cottage off 9th Street near the bay, we pulled a corroded aluminum slider and found the rough opening framed with untreated lumber that had wicked salt moisture for decades. Our crew rebuilt the jamb with pressure-treated stock, flashed the sill with a stainless pan, and set a PGT impact-rated slider with laminated glass. That same model passed Miami-Dade NOA and Florida Product Approval for the HVHZ coastal zone. That’s what a door replacement in San Leon should look like, and it’s what we deliver on every Door Installation job we take.
Why Laminated Impact Glass Matters on the Water
Single-pane or annealed glass in a slider facing Galveston Bay is a liability. A windborne piece of gravel or a palm frond becomes a missile at 130 mph. Impact-rated laminated glass won’t shatter into shards even if it cracks. For San Leon homes on pilings with open under-deck areas, this isn’t an upgrade. It’s the difference between your living room staying dry or becoming a wind tunnel during the next hurricane watch.
Rot Repair Under the Threshold
Many San Leon piling homes have open under-deck areas, so the slider threshold sits directly above exposed framing that takes salt spray and wind-driven rain from below. Once the old door comes out, we often find softened OSB or rotted joist ends under the sill. We write this into our process: inspect first, show you photos, price the repair in writing before we touch it. No revised invoices at the door.
Trusted Brands We Service in San Leon
We carry eight manufacturer lines, but for San Leon’s conditions we lean on a few more than others. PGT and CGI build impact-rated glass systems tested for coastal hurricane zones, and they’re the brands we recommend most often on bayside elevations here. ECO Window Systems offers energy-efficient packages that cut AC load through a San Leon summer. For front entry doors, Therma-Tru fiberglass holds shape in humidity where wood doors swell and bind. We stock parts and hardware locally for faster turnaround on warranty work in San Leon.
Common Door Installation Problems We See in San Leon Homes
- Salt-damaged sliding door tracks. The aluminum tracks on original beach-house sliders corrode from salt air, which starts as binding and ends with the door refusing to move at all. Replacement with stainless or heavy-duty aluminum track systems is the only permanent fix.
- Wind-load flexing on old jalousie openings. Walls around original jalousie windows flex under storm winds because the framing was never sized for impact-rated door weights. New doors need reinforced jambs and often additional studs before they pass design pressure tests.
- Rotted thresholds on piling homes. When the under-deck area is open to salt spray, wind-driven rain wicks up through the threshold flashing and rots the subfloor sheathing within one storm season. Proper stainless-steel pan flashing and drain channels prevent this.
- Sagging exterior doors from raw steel hinges. Salt air oxidizes raw steel hinges and lock hardware in under two years, so doors sag and strike plates don’t line up. We replace every exterior hinge with stainless steel and use marine-grade lock cylinders.
Pricing for Door Installation in San Leon, TX
Here are the real numbers for San Leon, based on the homes and conditions here. A single entry door replacement on a non-impact elevation runs $900 – $2,600. An impact-rated entry door on a windward elevation runs $1,800 – $4,200. A sliding glass door replacement starts around $1,200 for a basic aluminum unit and runs up to $5,500 for a large PGT or CGI impact-rated slider with laminated glass. French or double doors on an exterior wall run $1,800 – $4,800 with stainless hardware and full sill flashing.
What moves the price in San Leon specifically: whether the home sits on pilings with an exposed under-deck (more flashing and rot repair), whether the elevation faces the bay (impact code requirements), and whether the existing rough opening needs structural reinforcement to carry a heavier door. Every quote we write includes an allowance for what might be inside the wall. If we find rot or undersized framing, you see it, you approve the cost, and then we build it. Call (325) 326-4211 for your free written estimate.
We Also Serve Cities Near San Leon
Westlight Windows Houston handles Door Installation in San Leon plus the surrounding communities of Houston, The Woodlands, Sugar Land, and Humble. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office, and crews serve San Leon locally. Call (325) 326-4211 to arrange a site visit at your Bay Area home.
Serving San Leon, TX - Our Local Coverage Area
We’re based in the San Leon 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 Door Installation in San Leon
San Leon falls under the coastal building codes for Galveston County, which means impact-rated or wind-resistant door systems on windward elevations at minimum, and often on all elevations depending on the structure’s distance from the mean high tide line and the home’s design pressure requirements. We determine this for you during the estimate and show you the applicable code section in writing. Call (325) 326-4211 and ask for a code review on your address.
A door replacement alone won’t typically trigger a full window replacement. However, if the door opening shares a wall with jalousie windows and that wall needs structural reinforcement to handle wind load, the permit may require bringing the adjacent openings up to current code. Our San Leon door team identifies this risk during the inspection so you’re not surprised at permit time.
We inspect the subfloor and rim joists as part of every sliding glass door replacement on a piling home. If we find rot, we photograph it, show you what we found, and price the repair in writing before we order materials or cut anything. The allowance is in your original contract, so the cost doesn’t surprise you. Call (325) 326-4211 to schedule a free inspection.
Yes, but the center seam needs more attention than a builder-grade install will give it. We recommend impact-rated French doors with a heavy center mullion, interlocking astragals, and marine-grade weatherstripping. We also flash the sill with a stainless pan with high-capacity drain channels so any water that penetrates the seam drains back out instead of into the subfloor. This configuration runs $1,800 – $4,800 in San Leon.
PGT and CGI build the best track record in San Leon’s salt environment. Their stainless steel roller hardware and top-track drainage channels resist corrosion far longer than builder-grade aluminum. We also stock ViewLux and Mr-Glass units for customers who want a specific aesthetic. The right brand depends on your elevation and exposure, which is exactly what we evaluate during the free estimate. Call (325) 326-4211 and Owen Satterfield’s team will walk your door with you.
Written by Owen Satterfield, Owner at Westlight Windows Houston, serving San Leon door installation and replacement since 2009.
Six Reasons Homeowners Choose Westlight 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.