Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Styles & brands we work with
See the difference
Before
After
Before
After
Before
AfterFlat Roof Patch in Fort Worth, TX
A flat roof patch in Fort Worth typically costs between $450 and $1,200 for a standard repair, depending on the size of the damaged area and the membrane material involved. Most patches take a single visit and can be completed in one afternoon, though two-visit repairs are sometimes needed when the decking below is water-damaged. If you’re seeing a leak, bubbling, or a seam pulling apart, call Brennan Roofing Co Fort Worth at (682) 900-7902 and we’ll give you a written price before any work starts.
Flat roofs are common on older Fort Worth ranch houses, patio covers, porches, and commercial storefronts from Ridglea to Wedgwood. They shed water differently than pitched roofs, which means the failure points are different too. Our Roof Repair crews patch flat roofs with the same discipline as any full replacement: a written price in hand, a background-checked technician in uniform, and a one-year written guarantee on the repair. That’s the Garrison Standard, and it applies whether we’re replacing forty squares of shingle or sealing a two-foot tear in TPO.
When You Need Flat Roof Patch
Flat roofs fail in predictable ways, and most of them start small. A patch done early keeps water out of the decking and insulation. Here’s what to look for:
- Visible cracks or splits in the membrane. Fort Worth’s summer heat bakes flat roof surfaces. Thermal expansion and contraction causes the membrane to crack over time, especially on older modified bitumen roofs in areas like Arlington Heights and Fairmount.
- Water stains on interior ceilings or walls. On a flat roof, water travels horizontally before it finds a way down. The stain on your living room ceiling may be ten feet from the actual puncture.
- Bubbling or blistering. Trapped moisture under the membrane expands in Texas heat and pushes the surface up. Blisters eventually pop and become direct pathways for water.
- Ponding water that doesn’t drain after 48 hours. Fort Worth thunderstorms can dump a lot of water fast. If it’s still sitting on your roof two days later, that standing water is working against the membrane at the same spot every time it rains.
- Pulled or lifted seams. Flat roof seams are bonded, and that bond weakens with age and UV exposure. A lifted seam at a wall flashing or pipe boot is a common leak point on homes in Haltom City and White Settlement.
- Loose or damaged flashing around vents, pipes, and edge metal. Flashing is the metal or membrane material that seals the joints where your roof meets a wall, chimney, or penetration. On flat roofs, flashing failure accounts for a large share of the leaks we patch each spring and fall.
Our Flat Roof Patch Process
We keep the process straightforward. You know what’s happening at every step, and you know what it costs before we touch the roof.
- Inspection and written estimate. We inspect the roof, find the actual source of the leak, and put a price on paper. That number does not change at the door. You approve it or you don’t, but you never get surprised.
- Surface preparation. The damaged section is cleaned and dried. We cut back loose membrane, remove any deteriorated material, and prep the area so the patch bonds correctly. On wet decking, we tell you before we cut anything.
- Patch installation. We install a patch that matches the existing membrane system, whether it’s TPO, EPDM, or modified bitumen. Seams are sealed with the correct bonding method for that material, and any failed flashing is addressed at the same time.
- Seam testing and cleanup. We test the patch, inspect surrounding seams for hidden weakness, and clean the job site. You shouldn’t be able to tell we were there except for the repaired section of roof.
- Written guarantee. The patch is covered by the 365-Day Done Right Promise, in writing. If the repair fails within one year, we come back and make it right at no charge.
Flat Roof Patch Pricing in Fort Worth
Here’s a straight answer on what flat roof patching costs in the Fort Worth market. These ranges reflect what we see on homes across Tarrant County, from Lake Worth to Forest Hill.
| Repair Type | Typical Cost Range | What’s Included |
|---|---|---|
| Small patch (up to 10 sq ft) | $450 – $650 | Membrane patch, seam sealing, cleanup, one-year written guarantee |
| Medium patch (10 – 50 sq ft) | $650 – $1,000 | Larger membrane patch, flashing repair, surface prep, one-year written guarantee |
| Large patch or multiple penetrations | $1,000 – $1,800 | Extensive membrane work, flashing repair at multiple points, one-year written guarantee |
| Decking repair (if water-damaged) | $150 – $400 add-on | Replacement of rotted decking sections beneath the membrane |
What moves the price is the size of the damaged area, the material on your roof, and whether the decking underneath has taken on water. A TPO patch on a newer roof is usually at the lower end. An older modified bitumen roof with multiple blisters and rotted decking will run higher because there’s more labor and material involved.
You don’t have to call just to get a ballpark. That’s what this page is for. When you’re ready for an exact number, call (682) 900-7902 and we’ll schedule a free estimate with a live person, not a voicemail.
Materials We Patch With
Flat roof patching only works if the patch material is compatible with the existing roof. That’s not a detail we guess at. We match the membrane system and use materials from manufacturers including GAF and CertainTeed for TPO and modified bitumen systems, and IKO for certain residential asphalt products. The right material matters more than the brand name on the box, and we explain the options to you in plain English so you can make a confident choice.
Why Homeowners in Fort Worth Call Brennan Roofing
The flat roof patch itself is usually a simple repair. What’s less simple is finding a roofer in Fort Worth, TX who will answer the phone, show up when they say they will, and put a price on paper without moving it later. That’s what we built Brennan Roofing Co Fort Worth around.
Every job starts with a written price. Before any work begins, you have the number in hand. If the repair fails within a year, the 365-Day Done Right Promise means we return and fix it at no charge. The technician on your roof is background-checked and in uniform, so you know exactly who is on your property. And when you call, a live person answers around the clock. No phone tree, no callback queue.
Brennan Roofing is part of the Garrison Partners family, founded in 2000. We’re an independently owned and operated local business that agreed to operate under the Garrison Standard. That means the same process, the same accountability, and the same written guarantee on every job, whether it’s a full roof replacement or a two-foot patch on a patio cover in Benbrook.
Flat Roof Patch vs. Full Replacement
When a flat roof is failing in one or two spots, a patch is usually the right call economically. But there’s a threshold where patching stops making sense. If your roof is over 15 years old, the membrane is brittle in multiple areas, or you’re chasing a new leak every season, a patch is buying time rather than fixing the problem. When that happens, leak repair may require more than a patch. We’ll tell you that straight. Our crews patch what should be patched and recommend replacement only when the math supports it. You get the honest assessment either way, and the decision stays yours.
FAQs – Flat Roof Patch
How much does it cost to patch a flat roof in Fort Worth?
A flat roof patch in Fort Worth typically costs between $450 and $1,200, with most standard repairs landing between $650 and $1,000 depending on membrane material, patch size, and whether the decking is water-damaged. Call (682) 900-7902 for a free written estimate with an exact number before any work starts.
How long does a flat roof patch last?
A properly installed flat roof patch on a healthy membrane typically lasts 5 to 10 years or more, depending on the roof’s age and overall condition. Every patch we install is covered by the 365-Day Done Right Promise in writing for one full year, and we return free of charge if the repair fails within that period.
Can you patch a flat roof in the rain?
No, a flat roof patch requires a dry surface for the membrane to bond correctly, and we won’t install a patch that’s set up to fail. If you have an active leak during a storm, call (682) 900-7902 and we’ll talk through temporary measures and get your repair scheduled for the next dry window.
Is it cheaper to patch or replace a flat roof?
Patching is significantly cheaper in the short term, at $450 to $1,800 compared to $8,000 to $15,000 for a full flat roof replacement in Fort Worth. If the roof is under 10 years old with localized damage, patching is usually the financially sound choice, and we’ll tell you honestly when replacement makes more sense than another patch.
Do you offer free estimates for flat roof repairs?
Yes, every flat roof patch estimate is free and comes with a written price before any work begins. Call (682) 900-7902 and a live person will schedule your inspection.
Get Your Flat Roof Patched in Fort Worth
If you’ve got a leak, a lifted seam, or a blister forming on your flat roof, don’t wait for the next big storm to make it worse. Call Brennan Roofing Co Fort Worth at (682) 900-7902 for a free estimate. You’ll get a written price, a background-checked technician in uniform, and a one-year written guarantee on the repair. That’s the Garrison Standard, and it’s the same on every job we do.
Written by Travis Oakley, Owner at Brennan Roofing Co Fort Worth, serving Fort Worth.