# San Antonio TPO Roofing — Commercial Single-Ply Membrane Source: https://arproofing.com/san-antonio-tpo-roofing/ Last updated October 2026 San Antonio, Texas If you manage a San Antonio building with a flat roof, here's how ARP handles your TPO — from the first walkthrough to the warranty on your seams. Yes — ARP installs GAF EverGuard TPO and other single-ply membranes on commercial flat roofs across San Antonio and Bexar County. Every flat-roof scope is documented in writing before work starts, and every seam is probed and photographed. Book your San Antonio TPO assessment. [Free Inspection & Estimate →](https://arproofing.com/book/) [Call (210) 714-0040](tel:+12107140040) ![Randal and Preston Williams, ARP Roofing owners](https://arproofing.com/_astro/arp-roofing-randal-preston-williams.F4OKkfk5_Z2cyTWz.webp) Family owned, locally accountable COO & President — the father and son behind ARP ## Why these credentials are on this page 5,000+ Completed projects 4.9★ 300+ five-star reviews GAF GoldElite Commercial Manufacturer standing UNIFLEX Premier Elite Restoration coatings BBB A+ · CTRCA Member Accountability [Video: Commercial TPO Re-Roof on a South Texas Hospital](https://www.youtube.com/watch?v=CSH3fk2rO7k) Why ARP ## Why Choose ARP for Your San Antonio TPO Roof Here's the part most TPO bids don't tell you up front: on a flat roof, the membrane field almost never fails first — the seams do. That's where ARP's [commercial roofing in San Antonio](https://arproofing.com/san-antonio-commercial-roofing/) team looks first on every TPO roof. And if that roof leaks, you're the one explaining the tenant claim to ownership. ARP is a GAF GoldElite Commercial Contractor, which covers GAF's own EverGuard TPO — the flagship [single-ply membrane](https://arproofing.com/commercial-roofing-contractor/single-ply-roofing/) we run on most San Antonio flat roofs, with PVC or EPDM where your deck and drainage call for them. What you actually get: - **A written scope and photos** before anyone touches the roof, so the number you approve is the number you pay. - **Hot-air-welded seams, probed and documented** — the detail that decides whether your roof survives a San Antonio summer. - **One project manager** from the first walkthrough through warranty registration. - **Work phased around your tenants**, so a reroof on a Loop 410 retail box or an I-35 warehouse doesn't become a shutdown. ![An ARP crew heat-welding TPO seams on a San Antonio commercial roof — a continuous, watertight membrane.](https://arproofing.com/_astro/commercial-tpo-flat-roof-installation-crew.CcTLlCwO_23Y2ez.webp) An ARP crew heat-welding TPO seams on a San Antonio commercial roof — a continuous, watertight membrane. ![Randal Williams, ARP Roofing COO & Senior Roofing Consultant](https://arproofing.com/_astro/arp-roofing-randal-williams.XIeD7i6f_1Tjv4T.webp) > On an I-35 warehouse roof, the TPO seam is the whole ballgame. A hot-air weld either holds through a San Antonio summer of heating up and cooling down every day, or it doesn't. So I probe every seam we weld and hand you the photos. The seam you can't see is the one that floods your tenant's floor at two in the morning. > > Randal Williams · COO, ARP Roofing & Remodeling How It Works ## How San Antonio TPO Installation Works The install runs three steps, and the seam work inside each one is what keeps a San Antonio flat roof watertight. 1 **Assessment.** Our San Antonio project manager walks the roof and reads the drains, the seams, and the flashing at every rooftop unit, then hands you a condition report with photos. 2 **Written scope and permit.** You get an itemized scope naming the system, whether that's TPO, PVC, or EPDM. If you're still weighing which membrane fits your building, our [TPO vs PVC vs EPDM comparison](https://arproofing.com/commercial-roofing-contractor/single-ply-roofing/tpo-vs-pvc-vs-epdm/) lays out the trade-offs. We pull the permit through the City of San Antonio Development Services Department at 1901 S. Alamo Street and manage the inspection timing. 3 **Installation and warranty.** The membrane goes down to manufacturer spec, every seam is hot-air welded and probe-tested, and we register your warranty within 30 days. Commercial TPO in San Antonio runs $8 to $12 per square foot installed, with membrane thickness, roof access, and the number of rooftop units moving the number — your written assessment prices it exactly. For how single-ply TPO systems work in depth, from mil thickness and attachment methods to warranty tiers, see our [statewide guide to commercial TPO and single-ply roofing](https://arproofing.com/commercial-roofing-contractor/tpo-roofing/). Single-Ply Compared ## TPO vs. PVC, EPDM, and Modified Bitumen in San Antonio TPO isn't the only flat-roof option, and the right membrane depends on your building. Here's how the systems ARP installs compare for a San Antonio low-slope roof: - **TPO** — a white, reflective single-ply membrane with hot-air-welded seams. It sheds San Antonio's summer heat, keeps interior temps down, and delivers the strongest value for most warehouses, retail boxes, and offices. The default for a reason. - **PVC** — chemically similar install to TPO but tougher against grease and chemical exposure, which makes it the pick for restaurants and buildings with kitchen or industrial exhaust on the roof. - **EPDM** — a black rubber membrane with proven longevity, but it absorbs heat rather than reflecting it — a real drawback under Bexar County sun unless it's coated. - **Modified bitumen** — a multi-ply asphalt-based system that stands up to rooftop foot traffic well, though it's heavier and less reflective than single-ply. If you're weighing TPO against modified bitumen or the other single-plies, our [TPO vs. PVC vs. EPDM comparison](https://arproofing.com/commercial-roofing-contractor/single-ply-roofing/tpo-vs-pvc-vs-epdm/) lays out the trade-offs in depth. On your building, the written assessment names the membrane that actually fits your deck, drainage, and use. Vetting a Local Roofer ## Choosing a Commercial TPO Contractor in San Antonio Search "TPO roofing contractors San Antonio" or "commercial roofing companies San Antonio" and the list looks alike — until you ask who welds and probes the seams. On a single-ply roof, the install is the product: a membrane welded cold, dirty, or by an untrained hand fails at the seam years before the field wears out, and the manufacturer warranty means little if the applicator wasn't certified to install it. Before you hire a commercial TPO contractor in San Antonio, confirm they: - Are manufacturer-certified for the membrane they're quoting - Probe-test and photograph every seam - Carry current general-liability and workers' comp coverage - Can pull the City of San Antonio permit in their own name ARP is a GAF GoldElite Commercial Contractor with 5,000+ completed projects. Our San Antonio team welds and probes every seam, documents the roof with photos, and registers your warranty — the record your ownership or board can actually read. ![TPO carried up and flashed at the parapet wall — the transition detail that decides how long a flat roof lasts.](https://arproofing.com/_astro/commercial-flat-roof-tpo-membrane-parapet.CclyjRRq_a3E5e.webp) TPO carried up and flashed at the parapet wall — the transition detail that decides how long a flat roof lasts. Estimate your San Antonio project ## What a TPO roof costs in San Antonio Commercial TPO is priced per square foot of roof area. Membrane thickness, roof access, and the number of rooftop penetrations move the number — price your building against our 2026 San Antonio rates, then we'll confirm it on the roof. Installed, per sq ft of roof area — 2026 San Antonio commercial rates | System | Installed / sq ft | Where it fits | | --- | --- | --- | | GAF EverGuard TPO / single-ply | $8.00 to $14.00 | Low-slope membrane, heat-welded seams | | Commercial metal (site-formed) | $11.00 to $18.00 | Standing-seam for steeper commercial roofs | | Silicone / acrylic restoration coating | $3.50 to $6.00 | Restoration-eligible substrate only | | Flat-priced commercial repair | $1,500 to $3,500 per job | Priced after an on-roof inspection | Read the units Ranges are per square foot of actual roof area — the low-slope or steep surface a crew installs. Flat-priced repair is per job, not per foot. Coating rates assume a restoration-eligible substrate confirmed on the roof. ### Price your San Antonio roof & book the visit 2026 San Antonio rates. About 40 seconds. Roof area used: **12,000 sq ft** — low-slope roofs run close to footprint Adjust roof size to see your price Your 2026 San Antonio range Four things move your number Driver 01 ### Roof size and pitch Steeper means slower and safer, which costs more. Driver 02 ### Material The single biggest lever, and the one you actually choose. Driver 03 ### Decking condition Found at tear-off, photographed, and shown to you before any replacement. Driver 04 ### Access If your roof is hard to reach or the property is tight. Honest fit check ## Is ARP the right fit for your San Antonio project? The best way to judge any San Antonio contractor — us or anyone else — is to ask for a written scope, ask who your single point of contact is, and ask when the manufacturer warranty gets registered in your name. If a roofer can't answer those three plainly, that's your answer. Yes — we're a match ### A good fit if you - Want a roofer your San Antonio neighbors have actually used — not a pop-up tent after the last hailstorm. - Want everything documented and in writing, with photos, before any crew gets on the roof. - Plan to stay in your San Antonio home or hold the property long term. - Had recent hail or wind damage and want it documented correctly for your carrier. [Free Inspection & Estimate →](https://arproofing.com/book/) No — we'll say so up front ### Not the right fit if you - Need a commercial job below our minimum repair scope, or a firm residential repair price over the phone — we quote every repair after an on-roof inspection. - Need someone to start tomorrow with no inspection. - Are choosing purely on the lowest bid, without reading the scope underneath it. - Want a contractor to pay, waive or "take care of" your deductible — a criminal offense in Texas under Business & Commerce Code § 27.02. We'd rather tell you that on the phone than waste a walkthrough. No cost, no obligation ## Your free San Antonio commercial roof inspection & estimate A free San Antonio commercial roof inspection & estimate costs nothing and comes with no obligation. A project manager inspects the existing membrane, photographs the condition, and gives you a written report on whether a TPO system is the right call for your building. We check the seams, the flashings, and the drainage a single-ply roof depends on — including whether new scuppers or drains belong in the scope. We won't lowball by leaving them out. You get the photos and the scope whether you hire us or not, and on commercial work that scope is COO-reviewed before any crew mobilizes. From assessment to warranty 1 ### Free Roof Inspection & Estimate We measure your roof, photograph it, and document what's actually there — not a curbside guess. You get the photo set whether you hire us or not. 2 ### Written Scope Before Any Work You'll see line-item scope, materials, warranty options, and a real number in writing. On commercial projects that document is COO-reviewed. Nothing starts until you've read it. 3 ### Install and Warranty Registration A crew led by an ARP project manager does the work, pulls the San Antonio permit, and inspects at the key stages — then your manufacturer warranty registers in your name within 30 days. **No fee, no deposit, no pressure.** We confirm your address is covered before we schedule — then a project manager walks the roof. [Free Inspection & Estimate →](https://arproofing.com/book/) [Call (210) 714-0040](tel:+12107140040) Questions that decide the job ## San Antonio roofing — frequently asked questions ### How much does a TPO roof cost in San Antonio? Commercial TPO in San Antonio runs $8 to $12 per square foot installed. Membrane thickness, roof access, tear-off versus recover, and the number of rooftop penetrations all move the number. We measure your roof and hand you an itemized, written scope after a free roof inspection & estimate. [Book your San Antonio TPO assessment](https://arproofing.com/book/). ### How long will a TPO roof last on a San Antonio building? A properly installed TPO membrane lasts 20 to 30 years in San Antonio, and the seams decide where you land in that range. Constant UV and summer thermal cycling stress every weld, so seam quality and membrane thickness matter more than the brand on the box. [Get a documented assessment](https://arproofing.com/book/). ### Can you install TPO over my existing flat roof? Sometimes — a recover over one existing layer is allowed by code and costs less than a full tear-off, but only if the deck is dry and sound. If the insulation underneath is wet, we tell you honestly that a tear-off is the only real fix. Our assessment settles it with photos. [Book your assessment](https://arproofing.com/book/). ### Why do TPO seams fail on San Antonio roofs? Most TPO failures start at a seam, not in the field. San Antonio's UV load and daily thermal cycling stress every weld, and a seam that was welded cold or dirty lets go first. We hot-air weld and probe-test every seam, then photograph it. [Talk through your roof](https://arproofing.com/book/). ### Is TPO a good choice for San Antonio's hot climate? Yes — a white TPO membrane is one of the best flat-roof choices for San Antonio (SATX). Its reflective surface bounces summer UV instead of soaking it up, which keeps interior temperatures and cooling loads down through a Bexar County summer. That reflectivity is a big reason TPO became the default single-ply on commercial buildings across South Texas. [Book your TPO assessment](https://arproofing.com/book/). ### Do TPO roofs require a roof coating? No — a properly installed TPO membrane is a finished, watertight roof on its own and doesn't need a coating to perform. A reflective coating becomes worth considering years later, when an aging TPO roof is still sound but you want to restore reflectivity and add service life instead of tearing it off. On a San Antonio building, ARP inspects the membrane and tells you honestly whether a coating buys real time or just delays a needed replacement. Compare [commercial roof coatings](https://arproofing.com/san-antonio-commercial-roof-coatings/). ### Should I choose TPO, EPDM, or modified bitumen for my building? It depends on your roof's use and exposure. TPO is the reflective, cost-effective default for most San Antonio warehouses, offices, and retail; PVC suits buildings with grease or chemical exhaust; EPDM is proven but absorbs heat; and modified bitumen handles rooftop foot traffic well but weighs more. Our assessment names the membrane that fits your deck and drainage. Compare [TPO vs. PVC vs. EPDM](https://arproofing.com/commercial-roofing-contractor/single-ply-roofing/tpo-vs-pvc-vs-epdm/). ### Can you repair my existing TPO roof instead of replacing it? Often, yes. If the membrane is largely sound and the failures are isolated to seams or flashings, a documented TPO repair protects you for years at a fraction of a reroof. When the deck is wet or the membrane is at end of life, we tell you honestly that replacement is the sounder call — with photos. [Book a repair assessment](https://arproofing.com/book/). ### What warranty comes with a San Antonio TPO installation? Because ARP is a GAF GoldElite Commercial Contractor, we can register manufacturer system warranties on qualifying GAF EverGuard TPO installations — coverage that depends on membrane thickness and the full assembly, not just the top layer. We register it in your name within 30 days and hand you the documentation. [Get your assessment](https://arproofing.com/book/). Still exploring? ## Want the complete guide to commercial TPO & single-ply? Our statewide commercial TPO & single-ply guide goes deep on materials, cost, lifespan, and how each choice holds up in Texas — the full answers behind this San Antonio page. [Read our Commercial TPO Roofing guide →](https://arproofing.com/commercial-roofing-contractor/tpo-roofing/) Explore your San Antonio roof ## Start where your question is Every door lands on one written scope — pick the one that fits where you are right now. 01 ### [San Antonio Commercial Metal Roofing](https://arproofing.com/san-antonio-commercial-metal-roofing/) If you manage a warehouse, plant, or retail box in San Antonio, here's how ARP builds a commercial metal roof matched to your deck — not to whatever length showed up on the truck. See San Antonio Commercial Metal Roofing → 02 ### [San Antonio Commercial Roof Coatings & Restoration](https://arproofing.com/san-antonio-commercial-roof-coatings/) If you manage a San Antonio building with a sound but aging flat roof, here's how a restoration coating protects your asset — without a full tear-off. See San Antonio Commercial Roof Coatings & Restoration → 03 ### [San Antonio Commercial Roof Repair](https://arproofing.com/san-antonio-commercial-roof-repair/) If you manage a San Antonio building with a flat roof, here's how ARP finds the real leak, fixes it, and keeps your tenants open while we work. See San Antonio Commercial Roof Repair → 04 ### [San Antonio Commercial Roof Replacement](https://arproofing.com/san-antonio-commercial-roof-replacement/) If you manage an aging San Antonio building, here's how ARP decides between a recover and a full tear-off before your reroof starts. See San Antonio Commercial Roof Replacement → ## Book your free San Antonio commercial roof assessment Photo-documented, with a written condition report in hand — whether or not you hire us. [Book my San Antonio visit](https://arproofing.com/book/) [Call or text (210) 714-0040](tel:+12107140040) ![ARP Roofing team of 20+ employees standing between two branded service trucks in parking lot](https://arproofing.com/_astro/arp-roofing-team-portrait-trucks-2.CEWRNgwx_1rPolC.webp) **Sources & References** - [International Code Council, IBC Chapter 15 (roof assemblies, reroofing/recover limits)](https://codes.iccsafe.org/content/IBC2021P1/chapter-15-roof-assemblies-and-rooftop-structures) - [City of San Antonio, Development Services Department](https://www.sa.gov/Directory/Departments/DSD)