Reads moisture content in the deck and insulation so we know how far water has traveled from the entry point.
Flat Roof Leak Repair in San Marino That Stops the Drip
Flat Roof Leak Repair in San Marino starts with finding the actual breach, not guessing at it. We handle TPO, EPDM and modified bitumen membranes on homes, garages and commercial buildings across San Marino, Texas.
Serving San Marino and nearby areas.
How big is the leak?
Multiple points
Several leaks found in one inspection, often after a storm.
- 1. Single point One pipe boot, vent collar or small seam crack.
- 2. Multiple points Several leaks found in one inspection, often after a storm.
- 3. Widespread Membrane, flashing and decking all involved; planned in writing first.
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- 40Services from one local team
- 218Areas served around San Marino
- Test firstWater test before we close
- Photo recordImages of the repair area
What Our Flat Roof Leak Repair Includes
Every flat roof repair we do covers the leak itself, the components around it, and the test that proves it holds.
Work order
Flat Roof Leak Repair- Leak Detection and Testing: Moisture meter readings, infrared scan and a hose test to confirm the entry point. This is included on every job because patching without it is how leaks come back.
- Membrane Patch or Weld: Heat-welded TPO, splice-adhesive EPDM or torch-applied modified bitumen, matched to your roof. We cut back damaged material and install the patch with proper overlap and fastening.
- Flashing and Boot Repair: Pipe boots, step flashing, counter-flashing and drain collars get resealed or replaced as part of the repair. These are the most common leak points on flat roofs.
- Sealant and Fastener Work: We reseal exposed fasteners and joints with Henry Company or Sika sealant rated for your membrane. Loose fasteners get tightened or replaced before the sealant goes on.
- Post-Repair Water Test: We run water over the repaired area and check inside before packing up. If it still leaks, we keep working. The test is the last step of every repair, not an optional add-on.
- Photo Documentation: You get photos of the repair and notes on the membrane condition.
What the first visit covers
First visit
We walk the roof, trace the entry point, and confirm the repair plan with you before work starts.
Flat roof repair at homes
We handle the flat roof sections on houses, garages and additions.
Garage roof leaks
Pipe boots, seams and edge flashing.
Addition flat roofs
Transition flashing where flat meets pitched.
Skylight curbs
Curb flashing and glass seal leaks.
Patio roof sections
Low-slope membrane over outdoor areas.
Flat roof repair at businesses
We work around your operating hours and document every repair.
Retail strips
TPO and EPDM membrane repairs.
Warehouse roofs
Large flat roofs, drains and seams.
Office buildings
HVAC curb and flashing leaks.
What Flat Roof Leak Repair in San Marino Involves
A flat roof leak gets worse with every rain. Fixing it properly the first time protects your ceiling, your insulation and your building. We test the repair before we leave.
Flat Roof Leak Repair in San Marino is the process of locating water entry on a low-slope membrane, repairing the breach, and confirming the fix holds under water. On a flat roof, water rarely enters where the stain shows up inside. It travels along the deck, follows seams, and drops at the lowest point. That is why we test before we patch. A moisture meter and infrared thermal imaging camera narrow the search, then a hose test confirms the exact entry point before any sealant goes down.
San Marino sits in a hail and wind corridor, and flat roofs here take both. A TPO flat roof leak repair San Marino job often starts after a spring hailstorm cracks a pipe boot or lifts a seam. Modified bitumen roofs age faster under Texas sun and crack at the flashing. If you have called for flat roof leak fixing near me San Marino Texas and gotten a patch that failed, the entry point was probably never confirmed. We confirm it first.
- What it is
- Locating and sealing water entry on a flat roof.
- When it helps
- Ceiling stains, attic moisture, dripping after rain.
- What you get
- A tested repair and photos of the work.
How Our Flat Roof Leak Repair Process Works
You get a clear sequence from the first call to the final water test. No mystery, no waiting around wondering what happens next.
Tools and Methods We Use on Flat Roofs
Each method answers a different question. Together they leave very little to guess.
Shows temperature differences where wet insulation sits, which reveals leak paths that are invisible to the eye.
Traces breaches in TPO and EPDM membranes by detecting current flow through pinholes and seam gaps.
Applies controlled water to a suspect area so we can confirm the exact entry point before repairing it.
Documents large or hard-to-reach roof areas safely and gives you photos of the actual condition.
When You Need Flat Roof Leak Repair
A homeowner notices a brown ceiling stain after a heavy rain and the attic insulation above it is damp.
We inspect the flat roof section, trace the entry point with a moisture meter and infrared camera, and repair the membrane or…
HomesA property manager has a tenant complaining about a leak over a retail space after a storm.
We schedule around business hours, tarp if the leak is active, and complete a commercial flat roof leak repair San Marino tenants…
BusinessesA homeowner calls after finding water dripping near a skylight during a downpour.
We check the skylight curb flashing and the glass seal, reseal the curb, and test it with water.
HomesA hail storm passes through San Marino and the next rain finds three new leaks in a modified bitumen roof.
We inspect the whole roof, document the hail damage, and repair each leak point.
Homes
How Flat Roof Leak Repair Runs in San Marino
San Marino sits in the hail and wind belt that runs through this part of Texas, and flat roofs here take a beating from both. Spring storms crack pipe boots and lift seams. Summer sun at 100 degrees and above bakes modified bitumen until it cracks at the flashing.
Monte Vista
Older homes with mixed roof systems, including flat sections over additions and garages that leak at the transition flashing.
Beacon Hill
Historic homes where flat roof sections meet pitched roofs, a common spot for valley and flashing leaks.
Stone Oak
Newer construction with TPO and modified bitumen flat sections, often leaking at pipe boots and skylight curbs.
- Monte Vista
- Beacon Hill
- Stone Oak
- Alamo Ranch
- Northeast Side
From problem to finished result.
Slide to compare the photo with an illustrative inspection view. It is generated from the photo, not a measurement.
PhotoCeiling Stain From a Cracked Pipe Boot
Before: A homeowner in Monte Vista had a ceiling stain that grew from six inches to three feet over two weeks. Two previous patch jobs on the roof had not stopped it. The attic insulation around the vent pipe was soaked.
After: We traced the leak to a cracked pipe boot, replaced it and resealed the collar. The water test held. The stain stopped growing immediately, and the homeowner replaced two batts of insulation instead of the whole attic.
Commercial TPO Leak Over a Tenant Space
Before: A retail strip on the Northeast Side had water dripping through a ceiling tile every time it rained. The TPO membrane had a failed seam near the roof drain, and ponding water was working into it.
After: We cleared the drain, heat-welded a TPO patch over the failed seam, and confirmed the repair with a water test. The tenant stopped calling, and the property manager had photos for the owner's file.
Chimney Flashing Leak After Hail
Before: A Beacon Hill home had water running down the chimney chase after a hailstorm. The step flashing had been dented and pulled loose, and roof cement from an old repair was cracked and peeling.
After: We rebuilt the step flashing and counter-flashing, sealed the masonry joint, and tested it with a hose. The attic stayed dry through the next three rains, and the ceiling stain was repaired and repainted.
Flat Roof Problems We Solve in San Marino
Most flat roof leaks trace back to a handful of failure points.
Ceiling water stains that keep growing
The stain spreads with every rain, drywall sags, and insulation underneath stays wet. Left long enough, the ceiling has to come down.
Cracked pipe boots and vent collars
Rubber boots crack under Texas sun within a few years. Each crack lets water straight into the attic and soaks the insulation around the pipe.
Flashing failure at walls and chimneys
Failed flashing lets water run behind siding and into framing. By the time it shows inside, the wall cavity has been wet for weeks.
Clogged roof drains and ponding water
Water sitting on a flat membrane finds every weak seam. Ponding also adds weight and shortens the roof's life across the whole field.
Hail and wind damage to membrane
Hail bruises TPO and cracks modified bitumen. Wind lifts seams and tears edge metal. Both create leaks that widen with the next storm.
Why Fix a Flat Roof Leak Now
A flat roof leak never improves on its own. Water keeps moving, the deck keeps soaking, and the repair bill grows with every rain.
Stop Ceiling Stains Spreading
A ceiling water stain that starts at six inches can cover a whole ceiling panel in two rainy weeks.
Protect the Roof Deck
Water sitting on roof sheathing rots the plywood and rusts fasteners.
Avoid Attic Water Intrusion
Attic water intrusion soaks insulation, which then holds moisture against the framing. Wet insulation loses R-value and breeds mold.
Keep Commercial Tenants Dry
For commercial flat roof leak repair San Marino property owners, a leak over a tenant space means complaints, ceiling tiles, and possible business interruption.
What Flat Roof Leak Repair Costs
The number depends on how hard the leak is to reach, what material your roof uses, and whether the deck underneath is wet.
Included
Quoted after a first look
- Leak Detection and Testing
- Membrane Patch or Weld
- Flashing and Boot Repair
- Sealant and Fastener Work
What changes the scope
Quoted after a first look
- Membrane type
- Leak accessibility
- Wet decking or insulation
- Roof size and pitch
What you receive
Clear records you can keep and share.
Repair photos
Images of the repaired area before and after.
Findings notes
Where the water was entering and why.
Roof condition notes
What to watch on the rest of the roof.
Flat Roof Leak Repair Expertise You Can Check
Our technicians work on low-slope roofs every week, from single-family homes to retail buildings.
Moisture readings
Meter readings show how far water has spread from the entry point.
Thermal images
Infrared scans reveal wet insulation that looks dry on the surface.
Seam condition
We check seam edges for lifting, cracking or failed adhesive.
Towns we serve.
Based in San Marino and covering the places around it. Pick one for local details.
What San Marino Customers Say
We had a stain spreading across the ceiling for two weeks and two other companies just smeared sealant on the roof. These guys put a hose on it, found the cracked pipe boot, and replaced it in about two hours. The stain stopped growing that same day. Worth every dollar.
I manage a small retail strip with a TPO roof that was leaking over a tenant space. They came out, heat-welded a patch around the drain, and photographed everything for my file. Tenant stopped complaining. I have used them twice since for other units.
After the last hailstorm my modified bitumen roof started leaking near the chimney. They rebuilt the step flashing instead of just caulking it, and ran water over it before they left. It has rained three times since and the attic is dry. Straight answers, no upsell.
Frequently Asked Questions About Flat Roof Leak Repair
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.
2109395773The price depends on how hard the leak is to reach, the membrane type, and whether the deck underneath is wet. We give you the number before we start.
Yes. We cover San Marino and the surrounding San Antonio neighborhoods, including Stone Oak, Alamo Ranch, Monte Vista and the Northeast Side. If you are inside that ring, we can be on your roof, trace the leak, and usually repair it the same visit. Call with your address and we will confirm the window.
A single-point repair takes two to four hours including the water test. Complex leaks that involve flashing rebuilds, drain work or wet decking can take a full day. If the roof needs a tarp first because it is actively raining, that adds about an hour, and we come back for the permanent repair.
We repair TPO, EPDM and modified bitumen membranes, plus the flashing, pipe boots and drains attached to them. TPO gets heat-welded patches, modified bitumen gets torch or peel-and-stick repair, and EPDM gets splice adhesive. We carry GAF, Carlisle SynTec and Firestone Building Products materials so the patch matches your existing system.
Related Roof Leak Services
Other services from the same team.
- Shingle Roof Leak RepairAsphalt shingles and architectural shingles, including hail damage and wind uplift damage.
- Tile Roof Leak RepairClay tile and concrete tile roofs leak at cracked tiles, broken underlayment, and valley details.
- Metal Roof Leak RepairStanding seam metal panels leak at seams, fastener gaskets, and penetrations.
Get Flat Roof Leak Repair in San Marino Today
2109395773Water coming through your ceiling will not wait for a convenient day. Call and we will trace the leak, tell you what it takes to fix it, and get your roof dry.
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.