---
title: "Flat Roof Repair Houston TX | TPO, EPDM & Modified Bitumen"
description: "Flat and low-slope roof repair in Houston. TPO, EPDM, modified bitumen, and built-up systems. Ponding, seam, and flashing repairs with free inspection."
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# Flat Roof Repair in Houston, TX

Ponding water, split seams, failed drains and curbs. Low-slope repair done to the membrane's spec, not patched with roofing cement.

[Call 713-489-4265](tel:+17134894265)[Free Roof Inspection](/free-inspections)

Flat roofs in Houston deal with something steep roofs never face: standing water. Our rainfall intensity overwhelms undersized drains, and a low spot that holds water for more than 48 hours degrades any membrane system — TPO, EPDM, modified bitumen, or built-up.

Repairs have to match the membrane. Roofing cement smeared over a TPO seam fails within a season and contaminates the surface so the correct heat-weld repair costs more later. We identify the system first and repair to its spec.

## Houston Flat Roof Repair Costs

Service

Typical Cost

Timeline

Seam repair (TPO heat weld)

$350–$1,100

1 day

EPDM patch and seam tape

$300–$950

1 day

Modified bitumen torch patch

$400–$1,300

1 day

Drain or scupper reflashing

$450–$1,500

1 day

Curb and penetration flashing

$400–$1,200

1 day

Ponding correction (tapered insulation)

$6–$14 per sq ft

2–4 days

Ponding correction is the one flat-roof item that is genuinely expensive, because it means rebuilding slope with tapered insulation rather than patching a symptom.

## Why Houston Flat Roofs Fail

-   **Ponding water.** Anything still holding water 48 hours after rain is a defect. Standing water accelerates UV breakdown, adds structural load, and finds any pinhole in the membrane.
-   **Seam failure.** Seams are the weak line on every single-ply system. Heat, movement, and foot traffic open them, and water travels laterally under the membrane before it shows inside.
-   **Penetration curbs.** HVAC curbs, vents, and conduit are the most common leak sources on Houston commercial roofs — the flashing gets damaged by service techs walking the roof.
-   **Undersized or clogged drains.** Houston downpours exceed design capacity on older buildings. Blocked drains turn a rainstorm into a load-bearing problem.

## How We Repair Low-Slope Roofs

1.  Identify the membrane system and its age before proposing any repair method.
2.  Locate water entry with a walk of seams, curbs, drains, and terminations — plus moisture probing where needed.
3.  Repair to the manufacturer's method for that membrane, not a generic patch.
4.  Document with photos and advise on drainage corrections that prevent repeat failures.

## Why Homeowners Call Us

-   20+ years of roofing experience — roofing the Houston metro since 2006
-   Certified with major shingle manufacturers
-   Registered & insured, based in Rosenberg and serving the full Houston metro
-   Free inspections with photo documentation and a fixed written price
-   Workmanship warranty on every repair we perform
-   We tell you when a repair will do — we do not upsell replacements

## Related Pages

-   [Flat roofing services](/flat-roofing)
-   [TPO roofing](/tpo-roofing)
-   [EPDM roofing](/epdm-roofing)
-   [Commercial roofing](/commercial-roofing)

We serve the entire Houston metro — from Montgomery County to Galveston, Brazoria, Wharton, and Fort Bend County. See our [full service area list](/cities).

## Flat Roof Leaking? Get a Membrane-Specific Diagnosis.

Free inspection of seams, curbs, and drains with a fixed written repair price.

[Call 713-489-4265](tel:+17134894265)

## Flat Roof Repair in Houston FAQs

### How much does flat roof repair cost in Houston?

### How long should a flat roof last in Houston?

### Is ponding water on a flat roof normal?

### Do you repair commercial flat roofs?

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### Roof Repair Company

Quality Roofs. Stronger Families. Stronger Tomorrow.

Professional roofing contractor based in Katy, TX, serving Fort Bend County and the greater Houston area. Registered, insured, and committed to quality craftsmanship.

21418 Provincial Blvd  
Katy, TX 77450 

[713-489-4265](tel:+17134894265)

[office@roof.day](mailto:office@roof.day)

Open daily 6 AM – 8 PM  
After-hours emergency help 

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#### Our Services

-   [Roof Repair](/roof-repair)
-   [Roof Replacement](/roof-replacement)
-   [Storm Damage Repair](/storm-damage)
-   [Roof Insurance Claims](/roof-insurance-claims)
-   [Free Roof Inspections](/free-inspections)
-   [Commercial Roofing](/commercial-roofing)
-   [All Services & Materials →](/roofing)

#### Service Areas

-   [Houston](/service-areas/houston)
-   [Katy, TX](/service-areas/katy)
-   [Sugar Land](/service-areas/sugar-land)
-   [Rosenberg](/service-areas/rosenberg)
-   [All Cities →](/cities)
-   [All Subdivisions →](/subdivisions)
-   [Browse by ZIP Code →](/zip)

#### Quick Links

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##### Emergency Service

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