Reads temperature differences on the roof surface to reveal saturated insulation and hidden moisture pockets that are invisible to the eye. This is how we find leaks that are not where the ceiling stain is.
Commercial Roof Leak Repair in San Marino that stops the water
Commercial Roof Leak Repair in San Marino starts with finding the actual entry point, not guessing at it. We work on flat TPO and EPDM membranes, standing seam metal, and shingle systems across San Marino, Texas, and we test every repair before we pack up.
Serving San Marino and nearby areas.
How big is the leak?
Multiple points
Several leaks or a larger area of water damage that needs mapping before repair.
- 1. Single point One visible leak, one suspect area, straightforward access to the roof surface.
- 2. Multiple points Several leaks or a larger area of water damage that needs mapping before repair.
- 3. Whole section Widespread membrane failure or saturated decking across a large area of the roof.
Drag the needle to compareTouch and drag the needle
- 40Services from one local team
- 218Areas served around San Marino
- Camera firstThermal scan before any repair
- Test afterHose test confirms the fix holds
What our commercial roof leak repair includes
Every commercial roof leak repair job includes the diagnostic work, the repair itself, and the documentation to prove it was done right.
Work order
Commercial Roof Leak Repair- Full leak diagnostic: We walk the roof, use a moisture meter and infrared thermal imaging camera, and confirm the entry point with an electronic leak detection wand or hose test. This is included in every job because repairing without confirming the source is how you end up paying twice.
- Membrane-matched repair materials: We bring the right patch, sealant and flashing material for your roof system, whether that is TPO, EPDM, modified bitumen, metal or shingle.
- Post-repair water test: We re-run water over the repaired area and watch for any sign of continued entry. If it still leaks, we keep working until it does not. You should never have to test our repair for us by waiting for the next storm.
- Photo documentation: Before and after photos of the repair, the materials used, and the surrounding roof condition. We email the file the same day. It is useful for your records, for insurance claims, and for the next contractor who touches the roof.
- Written findings and next steps: We tell you what failed, why it failed, and what else on the roof is heading toward failure. That last part matters. It lets you budget for the next repair instead of getting surprised by it during a storm.
- Workmanship warranty
What the first visit covers
First visit
We walk the roof, scan for moisture, confirm the entry point, and explain what we found.
Commercial roof leak repair at homes
We also handle residential roofs with the same diagnostic process.
Ceiling stains
Trace the source before patching the ceiling.
Cracked pipe boots
Replace UV-brittle boots that let water down the pipe.
Storm damage
Document hail and wind damage for your claim.
Flashing failures
Reseal valleys, walls and chimney terminations.
Commercial roof leak repair at businesses
Flat membrane roofs on commercial buildings need different tools and methods than residential.
Warehouse and industrial
Large TPO and EPDM roofs with seam and drain issues.
Retail and office
Rooftop HVAC curbs and penetrations that fail.
Medical and professional
Priority scheduling to keep operations running.
What Commercial Roof Leak Repair in San Marino involves
A commercial roof leak never fixes itself, and the damage it causes inside costs far more than the repair. We find the source, fix it properly, and prove it holds before we leave.
Commercial Roof Leak Repair in San Marino is the process of tracing water entry on a commercial building, repairing the failed membrane, flashing or sealant, and confirming the fix holds under water. On a flat roof that usually means scanning for ponding, checking seams and drain collars, and cutting out saturated material. On metal it means resealing panel laps and fastener gaskets. On shingle it means resetting blown courses and replacing cracked pipe boots. We do all three.
San Marino sits in a part of Texas that swings from 100-degree summer afternoons to hard spring hail and the occasional winter freeze. That cycle expands and contracts every membrane, sealant and flashing on your roof. A small seam split in July becomes a soaked insulation batt by October. That is why we push commercial roof leak fixing San Marino building owners toward catching problems early, while a repair is still a repair and not a tear-off.
- What it is
- Tracing and repairing water entry on a commercial roof system.
- When it helps
- Ceiling stains, ponding water, or a leak after storms.
- What you get
- A confirmed repair, photos, and a written summary.
How our repair process runs
Five steps, no mystery. Here is exactly what happens from the moment you call until the roof is dry and documented.
Tools and methods we use
Each method answers a different question. Together they leave very little to guess.
Confirms the presence and extent of moisture in roofing materials and decking. We use it to map how far water has traveled so we cut out only what is actually damaged, not more.
Detects breaches in membrane systems by tracking moisture through the roof assembly. Especially useful on large flat TPO and EPDM roofs where visual inspection alone misses small failures.
Maps large or steep commercial roofs quickly and safely, capturing high-resolution images of problem areas before we send a technician up. Saves time on multi-building properties.
Applies controlled water to a suspect area while we watch from inside. This is how we confirm a repair actually holds before we call the job done.
When to call for commercial roof leak repair
A tenant calls at 8 a.m. saying water is dripping onto their desk after last night's storm.
We treat active interior leaks as priority calls.
BusinessesYou notice a brown ceiling stain that grows a little after every heavy rain but never actually drips.
This is the ideal time to repair.
BusinessesYour building just took a hail hit and you are not sure whether the roof is damaged or not.
We inspect the roof for hail bruising, cracked membrane, dented metal panels and damaged flashing. Everything gets photographed and documented.
BusinessesYou manage multiple commercial properties and want a maintenance plan instead of emergency calls.
We set up scheduled inspections, clear drains, reseal small failures, and document roof condition over time.
Businesses
How commercial roof leak repair runs in San Marino
San Marino sits in a climate that punishes roofs. Summer surface temperatures on a dark membrane can hit 160 degrees, then drop 60 degrees overnight. That daily expansion and contraction works every seam, fastener and sealant on the roof.
Downtown San Antonio
Older commercial buildings with a mix of flat membrane and modified bitumen roofs. Many have parapet walls where flashing fails and water gets behind the wall termination.
Pearl District
Renovated commercial and mixed-use buildings where new TPO roofs sit on older decks. Drainage is often undersized for the roof area, so ponding shows up fast after heavy rain.
Stone Oak
Office and retail buildings with large flat roofs and rooftop HVAC units. Curb flashing and pipe boots around the equipment are the most common leak points we find here.
- Downtown San Antonio
- Pearl District
- Stone Oak
- Medical Center
- Alamo Ranch
From problem to finished result.
Slide to compare the photo with an illustrative inspection view. It is generated from the photo, not a measurement.
PhotoTPO membrane seam failure at a warehouse
Before: A 40,000 square foot warehouse had water staining ceiling tiles in two locations after every heavy rain. The previous contractor had patched both stain locations directly. Neither patch was anywhere near the actual leak, which was a failed heat-welded seam 60 feet away.
After: We located the failed seam with thermal imaging, cut out the section, and heat-welded a new TPO patch to manufacturer spec. Total repair time was about five hours. The ceiling tiles were replaced the following week, and the roof has stayed dry through multiple storm events since.
Clogged roof drain causing ponding and interior leak
Before: A retail building in the Pearl District had standing water on the roof that never drained after rain. Water had worked under the membrane at a drain ring and was dripping into a stockroom. The drain strainer was packed with debris and the ring seal had failed completely.
After: We cleared the drain, replaced the failed ring and strainer, and resealed the membrane around the drain. Ponding cleared within hours of the next rain. The stockroom stayed dry, and the owner avoided the interior mold problem that was starting to develop.
Hail-bruised shingle roof on a commercial property
Before: A commercial property with an architectural shingle roof took a significant hail event. The owner did not see any leaks and assumed the roof was fine. An inspection found bruising across the mat on multiple slopes and two cracked pipe boots that were already letting water in.
After: We documented the hail damage with photos for the insurance claim, replaced the cracked pipe boots, and repaired the bruised sections that were most at risk. The claim was approved, and the roof was brought back to a watertight condition without a full replacement.
Commercial roof problems we solve in San Marino
Most commercial leaks fall into a handful of categories.
Ceiling water stains spreading after every rain
Stains mean water is already inside the building. Left alone, the moisture feeds mold, ruins ceiling tiles and can short electrical fixtures.
Ponding water on a flat commercial roof
Standing water adds weight, accelerates membrane breakdown and finds every seam weakness.
Failed flashing at walls, curbs and penetrations
Flashing failures are the single most common source of commercial roof leaks.
Cracked pipe boots and vent collars
UV exposure makes rubber and plastic boots brittle within a few years in Texas.
Hail and wind damage that has not leaked yet
Hail bruises shingle mats and cracks membrane surfaces without immediately leaking. Wind lifts edges and bends flashing.
Why building owners call us first
A commercial leak costs you more than the repair. It costs you ceiling tiles, tenant complaints, ruined stock and sometimes a shutdown.
We find the real source
Water travels. A stain 30 feet from the actual breach is normal on a flat roof.
Repairs that hold through storm season
We do not smear roof cement over a wet seam and call it done.
Minimal disruption to your operation
Most commercial roof leak fixing near me San Marino Texas jobs are done without shutting your doors.
Documentation you can hand to your insurer
Every job ends with photos of the before and after, the materials used, and a written summary of what failed and why.
What commercial roof leak repair costs
Commercial roof leak repair pricing in San Marino depends on roof size, membrane type, access difficulty and how much material has to be replaced.
Included
Quoted after a first look
- Full leak diagnostic
- Membrane-matched repair materials
- Post-repair water test
- Photo documentation
What changes the scope
Quoted after a first look
- Roof height and access
- Membrane type
- Extent of water damage
- Number of leak points
What you receive on a job
Clear records you can keep and share.
Photo record
Before and after images of the repair.
Findings summary
What failed, why, and what else needs watching.
Material list
The exact products used on your roof.
Roof leak experience you can check
Our technicians work commercial roofs every week, not once a season.
Moisture readings
A meter shows how far water has spread through the roof assembly.
Thermal images
A camera reveals temperature differences that indicate saturated insulation.
Seam condition
Visual check of laps and welds tells us where membrane is failing.
Towns we serve.
Based in San Marino and covering the places around it. Pick one for local details.
What San Marino building owners say
We had a leak staining ceiling tiles in two tenant suites and the previous crew patched the wrong spot twice. These guys found it in an hour with a thermal camera. It was a failed pipe boot 40 feet from the stain. Repaired it the same day, tested it, and sent photos. No drip since, through two decent rainstorms.
Our flat TPO roof was ponding near a drain and water was getting under the membrane. They cleared the drain, cut out the saturated section, and re-welded new membrane over it. Took about six hours. They documented everything for our insurance because the damage traced back to a hail event. Straight pricing, no games.
We manage several buildings and leaks are always an emergency. Called on a Friday with water coming into a storage room. They tarped it that afternoon and came back Monday to do the permanent repair on the metal roof. Fastener gaskets had failed across a section. Fixed properly, not just sealed over.
Frequently Asked Questions
Short answers for the first few minutes. The team can cover the rest.
Still have a question?
Describe what you are seeing and we will point you to the right next step.
2109395773Price climbs with roof height, membrane type, how much saturated insulation has to come out, and whether the leak sits at a drain, skylight or HVAC curb. We quote before we start.
Yes. We cover San Marino and the surrounding San Antonio area, including downtown commercial blocks, the Pearl District, Stone Oak, Alamo Ranch and the Medical Center corridor. If your building is inside that footprint, we can usually schedule a diagnostic visit within 24 to 48 hours, and same day for active leaks. Call 2109395773 and we will confirm a window.
A straightforward single-leak repair takes two to four hours on site, including the hose test. More complex jobs, like a failed drain assembly or a section of saturated TPO membrane that has to be cut out and re-welded, run six to ten hours and may need a second visit once the deck dries. We tell you the expected duration when we quote.
We do. TPO and EPDM are the two most common flat roof membranes on San Marino commercial buildings, and we carry the seam welders, primers and membrane rolls to repair both. We also handle modified bitumen, standing seam metal panels and shingle systems. Tell us the membrane type when you call and we will bring the right materials.
Related Services
Other services from the same team.
- Residential Roof Leak RepairFrom a single-family home in Helotes to a rental property in Converse, we repair residential roof leaks and…
- Roof Leak RepairThe core service: we trace the water path, repair the failed component, and re-test with a hose.
- Emergency Roof Leak RepairActive water coming through a ceiling right now gets priority.
Get your Commercial Roof Leak Repair in San Marino scheduled
2109395773Water is not going to wait, and neither should you.
Call for a roof leak inspection
Call 210-939-5773 and tell us where the water is showing up. We answer the phone during business hours and schedule most inspections within a day or two. If the leak is active, say so and we will move you to the front of the line.