Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows & Doors Across San Antonio
Impact windows and doors in San Antonio are not a luxury add-on. They are what stands between your house and the next hailstorm, the next 100-degree July, or the next hurricane spinning up in the Gulf. TruePane installs, replaces, and services impact-rated windows and doors across San Antonio every week, from King William to Government Hill to the 78209 neighborhoods east of the Pearl. We have seen what black-gumbo clay does to a door frame over a decade, and we know what the Office of Historic Preservation requires before a single pane comes out of a Craftsman bungalow. If you are in San Antonio and need impact windows or doors quoted, call (888) 635-0804. We will send a journeyman, not a sales rep.
Key Takeaways
- Impact window and door replacement in San Antonio typically runs $850-$2,400 per window and $2,800-$9,500 per door, depending on size, manufacturer, and historic-district requirements.
- Historic districts like King William, Monte Vista, Government Hill, and Lavaca usually require a Certificate of Appropriateness from the city before work can legally start. We handle that paperwork.
- San Antonio’s black-gumbo clay heaves seasonally and racks door frames out of square by 1/4 to 3/8 inch. This is a local fact of life, not an install defect.
- TruePane registers both manufacturer warranty layers in writing before the truck leaves your driveway. That is The Keystone Standard, and it is on every job.
- Call (888) 635-0804 for a free, written, line-item estimate. No change orders, no surprise line items.
Why TruePane Windows & Doors Is San Antonio’s Preferred Impact Windows & Doors Company
We have been doing this long enough to know that San Antonio is not one market. It is a patchwork of historic districts, mid-century subdivisions, limestone-clad ranchers, and new builds on the northwest fringe. Each one has different rough openings, different code requirements, and different failure modes. Our Impact Windows & Doors team has worked in all of them.
What San Antonio homeowners tell us they value most is that we answer the phone. A live person picks up 24 hours a day, 7 days a week. When you call with a fogged IGU in Monte Vista or a dragging French door in Lavaca, you talk to someone who can schedule a truck, not someone who takes a message.
TruePane was founded by Dale Kessler, a second-generation glazier, and the founding rule on his whiteboard has not changed: if the pane is not true, the job is not done. Our technicians are background-checked, uniformed, and trained to measure every opening twice. We are an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, and ES Windows, and we quote them side by side on paper so you see exactly what you are buying. We have proudly served local communities since 2008, and we plan to be in San Antonio for thirty more.
Our Impact Windows & Doors Services in San Antonio
Hurricane Impact Windows
We replace and install impact-rated windows throughout San Antonio, with a heavy focus on the older housing stock in the 78201-78210 corridor. Those pre-1950 Craftsman bungalows and Spanish Colonial Revival homes rarely have standard rough openings, which means catalog replacements do not fit. We measure to the eighth of an inch and order custom-sized units. In King William, we routinely spec impact glazing with a matching exterior muntin profile so the new sash looks like it has been there since 1910. The glass is modern. The proportions stay original.

Impact Sliding Glass Doors
Impact sliding glass doors in San Antonio have to do two jobs at once: they need to hold up under wind-borne debris, and they need to keep operating when the clay beneath the slab moves. We set multi-track sliders on a bed that tolerates seasonal movement, and we check the rough opening for rack before the first screw goes in. A San Antonio slider that is installed square on day one will not stay square on its own. We build for that.

Impact Entry & French Doors
This is where we spend a lot of our time in San Antonio’s historic districts. Original transom-lit entryways and double French doors with non-standard jambs are common in King William, Monte Vista, and Government Hill. We install impact-rated entry and French doors that match the original sightlines, with custom millwork where needed. And before we hang the door, we check the soil moisture and the jamb rack. A door that swings open on its own in July is usually not a hinge problem. It is the black-gumbo clay settling, and we quote for it up front.

Impact Garage Doors
Garage doors are the largest opening in most San Antonio homes, and they are often the weakest point in a wind event. We install impact-rated garage doors with reinforced tracks and bracing, and we check the side jambs for the same soil movement that affects entry doors. If your garage door binds or jumps the track in summer, the issue is often below the slab, not in the door itself.

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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Antonio
We are an authorized installer for PGT, CGI, CWS, and ES Windows, among others. That matters in San Antonio because not every impact-rated line is spec’d the same, and not all of them hold up the same under our UV load. We quote manufacturer lines side by side on paper so you can compare glass packages, SHGC ratings, and warranty terms line by line. If a brand has a known seal-failure pattern in our climate, we will tell you. We do not push whatever is sitting in the warehouse. We push what will last.
Common Impact Windows & Doors Problems We See in San Antonio Homes
- Racked rough openings from expansive clay. The Balcones Fault Zone runs beneath San Antonio, and the black-gumbo clay heaves and settles seasonally. A vinyl replacement window measured to a racked opening will bind in its jamb within two summers. We check for rack and shim the opening before we set the frame.
- Fogged IGUs from seal failure. San Antonio’s afternoon UV routinely exceeds what entry-level insulated glass units are rated for. On west-facing stucco walls, a low-spec IGU can lose its argon and fog within five years. We spec SHGC and seal ratings for the actual orientation of the wall.
- Doors that drag or swing open after installation. This is the signature San Antonio failure mode. A door hung plumb in March can be 3/8 inch out of square by August because the clay beneath the threshold dried out. We pre-check soil moisture and quote trim-back and re-shimming as an expected return visit, not an extra charge.
- Historic-district compliance stops the job. In King William, Monte Vista, Government Hill, and Lavaca, you cannot legally replace a window or door without a Certificate of Appropriateness from the Office of Historic Preservation. Contractors who do not know this can leave a homeowner with an open wall and a stop-work order. We file the paperwork before the first nail comes out.
Pricing for Impact Windows & Doors in San Antonio, TX
Impact windows in San Antonio run $850-$2,400 per window for standard sizes, with custom historic-district sashes running higher. Impact sliding glass doors range from $2,800-$9,500 depending on track configuration, glass package, and custom millwork. Impact entry and French doors run $3,200-$11,000, with the higher end reflecting matched historic profiles and transom work.
What moves the price in San Antonio specifically: historic-district approvals and custom sizing to non-standard rough openings, west-facing solar exposure that demands a better SHGC, and soil preparation for black-clay movement. Lead times on custom units, particularly sliding glass doors from PGT or CGI, are running longer than labor. Call (888) 635-0804 and we will quote you a fixed price in writing before anything is ordered. Estimates are free.
We Also Serve Cities Near San Antonio
TruePane serves San Antonio and the surrounding communities, including San Antonio, Lackland A F B, Kelly Usa, Converse, and Adkins. If you are within driving distance and need impact windows or doors spec’d and installed, call us. The free estimate covers the same written, line-item quote we give our San Antonio customers.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio 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 - Impact Windows & Doors in San Antonio
Yes, in almost every case. King William is a certified historic district, and the Office of Historic Preservation requires a Certificate of Appropriateness before any exterior window or door replacement can proceed legally. That applies to the visible glass, the frame profile, the muntin pattern, and the exterior color. TruePane files the application, supplies the drawings and product specs, and works directly with the city office. We have done enough of these that we know which glass packages get approved and which ones get bounced back. Call (888) 635-0804 if you want us to check your address before you buy anything.
Hurricane rating addresses wind-borne debris and pressure cycles. It does not guarantee the insulated glass unit seal will survive San Antonio’s afternoon UV load on a west-facing wall. When a contractor specs an impact window without matching the SHGC and seal package to the wall orientation, the IGU seal cooks and fails. The argon escapes, condensation forms between the panes, and the U-factor drops. We spec glass packages by orientation, not just by code minimum. Call (888) 635-0804 and we will look at your exact wall exposure.
Yes. We recently replaced a pair of original double-hung wood sashes in a King William Craftsman on East Guenther Street. The homeowner had lived with fog between the panes for years, a classic IGU seal failure. Our crew measured the jamb pockets to the eighth of an inch, ordered custom impact-rated glazing from Andersen with a matching exterior muntin profile, and worked with the Office of Historic Preservation to get the Certificate of Appropriateness before the first nail came out. Once installed with flashing tape at the head and sill, the sashes glided smoothly, and they will keep doing so even as the black-gumbo clay beneath that block heaves through another drought-wet cycle. If you have original sashes, we can match them.
Usually not. San Antonio sits on expansive black-clay soils that shrink when dry and swell when wet. A door that is plumb in March can be 1/4 to 3/8 inch out of square by August because the clay beneath the threshold settled. The door itself is fine; the opening moved. We check soil moisture and jamb rack before installing any impact door in San Antonio, and we quote trim-back and re-shimming as an expected maintenance item, not a hidden charge. If another contractor installed your door and did not mention this, call (888) 635-0804 and we will tell you what is actually going on with the slab.
For custom impact sliding glass doors from PGT, CGI, or CWS, expect 8-14 weeks from order to delivery at your San Antonio home. Off-the-shelf configurations can run shorter, but custom track lengths, glass packages, and historic-district approvals add time. Labor on our side is not the bottleneck; manufacturer production queues are. The price is fixed in writing before anything is ordered, so the lead time does not become an excuse for a change order. Call (888) 635-0804 and we will give you a written quote with the lead time stated on it.
Call TruePane for Impact Windows & Doors in San Antonio
If you live in San Antonio and you are shopping impact windows or doors, you are making a decision that will be on your house for twenty years or more. Get the quote in writing, get both warranty layers registered, and get the clay and the historic district handled by someone who has done it before. Call (888) 635-0804 for your free estimate. A live person will answer.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Antonio with a trade standard that has not moved in many years.



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