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Custom window and door work in San Antonio usually means one of two things: either you’re replacing originals on a pre-1950 house in a historic district, or you’re cutting a new opening where no standard size will fit. Either way, the job starts with accurate measurements, honest paperwork, and an understanding of what the city’s older neighborhoods actually demand. We serve the entire San Antonio area, from King William to Government Hill to Monte Vista and beyond. If you’re ready to price the work, call (888) 635-0804 for a free estimate. We’ll come out, measure every opening twice, and put the numbers on paper.
Why TruePane Windows & Doors Is San Antonio’s Preferred Custom Windows & Doors Company
TruePane Windows & Doors has never been the cheapest bid in San Antonio, and we don’t try to be. We’re the company people call after a fogged seal or a binding door has already cost them once. Our entire operation runs on a rule founder Dale Kessler keeps on the whiteboard: if the pane is not true, the job is not done. That governs how we measure, how we shim, how we flash, and how we handle the surprise conditions that old San Antonio homes reliably reveal.
We’ve built our reputation in the 78201-78210 corridor the slow way, by doing work that holds up to black-gumbo clay movement and 100°F summers. Customers in San Antonio know our uniformed technicians by name. They know we register both manufacturer warranty layers in writing before the truck leaves the driveway, and they know the Done Right Promise means we come back if something isn’t right, no paperwork fight. A live person answers the phone 24 hours a day. That matters when a transom leaks during a thunderstorm or a door won’t latch the week before a family wedding.
We hire local and train apprentices into journeymen. A company that plans to be in San Antonio in thirty years doesn’t cut corners on the work it does today. Our Custom Windows & Doors team is background-checked, uniformed, and treats your house the way they’d treat their own mother’s.
Our Custom Windows & Doors Services in San Antonio
Custom Shape Windows
Arched transoms, round porthole windows, eyebrow windows, trapezoids, half-rounds above French doors. San Antonio’s Victorian and Craftsman homes are full of openings that were never standard, and catalog replacements will never fit them. We measure the actual opening, order glass to the exact radius and angle, and build the frame in place. In neighborhoods like Government Hill and Lavaca, where a Certificate of Appropriateness often requires matching the original profile, a true custom shape window is not optional. It’s the only way the job passes.
Architectural Grilles & SDLs
Grilles and simulated divided lites (SDLs) are what keep a replacement window from looking like a patch job on a 1920s bungalow. We match existing muntin widths, profiles, and spacing so the new window reads as original. On a Monte Vista Spanish Colonial, that might mean a 7/8-inch flat profile in a cream finish. On a King William Victorian, it might mean a 1-1/8-inch beaded profile in dark bronze. The work matters because the historic district reviewer will look at exactly that detail before signing the Certificate of Appropriateness.
Oversized Glass Panels
Floor-to-ceiling patio glass, oversized picture windows, and glass wall systems. In San Antonio, an oversized panel is doing two jobs: holding back summer heat and surviving the occasional arctic intrusion. Winter Storm Uri in February 2021 pushed temperatures into single digits and shattered thousands of under-specified panes across the city. We size oversized glass for both ends of that range, using low-E coatings, argon fill, and thermally broken frames that won’t frost-stress when the next front drops through the Balcones Escarpment.
Commercial Storefront Glazing
For storefronts in older commercial strips around San Antonio, we handle aluminum storefront systems, entry doors, and replacement glass. Building owners in the 78201-78210 area know that a warped door or a blown seal on a storefront is a liability and an eyesore. We quote it, order it to spec, and install it without shutting the business down longer than necessary. No surprise line items, no revised quote after the fact.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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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’re an authorized installer for more than a dozen manufacturer lines, and we stock common parts locally for San Antonio customers. That means faster turnaround on replacement hardware and glass. We quote PGT and CGI side by side on paper for impact-rated work, and Plymouth-based Ply Gem lines where a client wants a specific vinyl or composite profile. Side-by-side quotes let you see exactly what you’re buying, not a verbal summary. We register both warranty layers before the truck leaves your driveway. If a claim ever needs to be filed, you’ll have the paperwork in hand, not a phone call to a regional call center.
Common Custom Windows & Doors Problems We See in San Antonio Homes
- Doors that swing open or start dragging within a year. Expansive black-gumbo clay under San Antonio heaves and settles seasonally. A door hung perfectly plumb can rack 1/4 to 3/8 inch out of square. We quote trim-back and re-shimming as an expected return visit, not a defect.
- Fog between the panes on glass less than five years old. Intense UV and 100°F+ summers break down low-quality vinyl frames and IGU seals. San Antonio’s heat kills cheap units fast. We install glass rated for this climate, and we stand behind it in writing.
- Rot and moisture intrusion behind stucco at window and door heads. Pre-1950 Spanish Colonial homes in San Antonio are stucco-clad. When flashing tape isn’t integrated into the water-resistive barrier properly, moisture gets trapped behind hard coat and rots the framing silently. We open it up, fix it, flash it right.
- Rough openings that are no longer square. Foundation movement from clay soil racks openings, so a standard catalog window won’t fit. We measure the actual opening, mill trim to fill the gaps, and shim the unit so it operates correctly on day one and five years later.
Pricing for Custom Windows & Doors in San Antonio, TX
A custom shaped window on a San Antonio bungalow, like an arched transom or a half-round, typically runs $900-$2,400 installed, depending on radius, glass package, and whether the opening needs re-framing. Architectural grilles and SDLs usually add $45-$120 per unit on a standard two-sash window. Oversized glass panels, including structural reinforcement for our wind and thermal loads, generally run $1,800-$5,500. A full custom exterior door with transom work sits in the $2,500-$7,000 range. The honest answer on San Antonio pricing is this: the historic district approval, the clay-soil foundation movement, and the stucco flashing integration are all part of the job here. A cheap quote that ignores them is a change order waiting to happen. Call (888) 635-0804 for a written line-item quote. Estimates are free.
We Also Serve Cities Near San Antonio
Our crews work across the San Antonio metro. We regularly travel to Lackland AFB, Kelly USA, Converse, and Adkins for custom window and door work. Every job gets the same Keystone Standard: both warranty layers registered in writing, Done Right Promise, and a live person answering the phone when you call. Custom Windows & Doors in San Antonio is our home base, but the standard doesn’t change at the city line.
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 - Custom Windows & Doors in San Antonio
Yes, in almost every case. King William is one of San Antonio’s certified historic districts, and any exterior window or door change requires a Certificate of Appropriateness from the Office of Historic Preservation before work begins. We handle the paperwork, the drawings, and the district review. We’ve done it enough times in King William, Monte Vista, and Government Hill to know what the reviewers look for: original muntin profiles, true divided light or SDL matching, and materials consistent with the period. Call (888) 635-0804 and we’ll walk you through the process.
Because the black-gumbo clay under your foundation has moved. San Antonio sits on expansive soil that swells when wet and shrinks when dry. A door hung perfectly plumb in January can be out of square by July. The fix is re-shimming the jamb and, in some cases, trimming the door slab. We write this into our quotes for older San Antonio homes so it’s an expected adjustment, not a warranty dispute. If your door is already doing this, we’ll come re-shim it. The Done Right Promise covers it if we installed it; otherwise it’s a straightforward service call.
Yes. We mill custom wood sash to match your existing profiles and fit them with low-E insulated glass units, typically with argon fill. You keep the original look, satisfy the historic district reviewer, and get dual-pane thermal performance. The detail matters in Monte Vista, where the stucco homes have window openings that were never standard. Call (888) 635-0804 for a free measurement and quote.
Fog between the panes means the seal on the insulated glass unit has failed. In San Antonio’s heat, that happens faster on low-quality frames and under-specified glass. You’ll need a new IGU, and in some Government Hill homes with original wood sash, we can replace just the glass unit rather than the whole window. That saves the millwork and the Certificate of Appropriateness paperwork if the original frame is still sound. We’ll inspect it and tell you straight which route works. Free estimate at (888) 635-0804.
We inspect first, before the contract is signed. We look at the framing, the wiring, the flashing, and the rough opening. Then we write allowances into the contract for what we expect to find. On a 1920s Craftsman in Government Hill, we opened a transom-lit doorway and found the rough opening racked 3/8 inch out of square from clay heaving. We re-shimmed the jamb, milled the sash to match, and scheduled the trim-back revisit before the door ever started dragging. If something unexpected does show up, you get a written change order with a fixed price before we touch it. No open-ended surprises.
Call TruePane Windows & Doors for Custom Work in San Antonio
If you live in King William, Monte Vista, Government Hill, Lavaca, or anywhere else in San Antonio and you’re pricing custom windows or doors, call (888) 635-0804. We’ll come out, measure every opening twice, quote manufacturer lines side by side on paper, and explain exactly what the historic district and the clay soil mean for your job. Dale Kessler founded this company on a simple rule: if the pane is not true, the job is not done. We stand behind it. In writing.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Antonio, TX.