Commercial Flat Roof Leak Repair
in Denton, Dallas, Fort Worth & DFW

Leak detection and repair for TPO, modified bitumen, BUR, PVC, coated, and metal roof systems.

Schedule Leak Detection
Call 972-318-1500

Dealing With a Flat Roof Leak?

Flat roof leaks are one of the most common — and most mishandled — problems in commercial property maintenance. The typical response is a quick patch. But patching over a symptom without finding the source means the water keeps finding its way in, often through a completely different spot than where it shows up on your ceiling.

At Anderson Roofing & Contracting, we approach every leak the same way: find the actual cause, assess the surrounding roof condition, and make a repair that holds. If the roof has reached the end of its useful life, we’ll tell you that too — along with your replacement options.

Signs Your Commercial Flat Roof Needs Repair

Catching a problem early almost always saves money. Here are the most common signs that something is wrong with a commercial flat or low-slope roof.

Active or Recent Leaks

Water intrusion inside the building is the most obvious sign — but the entry point on the roof is rarely directly above where it shows up inside.

Standing Water

Ponding water that sits for more than 48 hours after rain puts stress on the membrane and accelerates deterioration.

Blistering or Bubbling

Blisters in the membrane indicate moisture or air trapped beneath the surface — a sign the system has been compromised.

Damaged Flashing

Flashing around drains, vents, HVAC units, and parapet walls is one of the most common entry points for water.

Cracked or Shrinking Membrane

UV exposure and temperature swings cause membranes to crack or pull away from seams and flashings over time.

Visible Deterioration

Granule loss, discoloration, or exposed substrate are signs the roof membrane is no longer performing as designed.

We Find the Source. Fix It Right.

Every repair starts with a thorough inspection — not a guess. Here’s what you can expect when you call us for a commercial flat roof leak.

Contact Us

  • Full Roof Inspection

    We walk the entire roof — not just the area above the visible leak. Water travels, and the source is often several feet away from where damage appears. We check the membrane, seams, flashings, drains, and penetrations.

  • Root Cause Identification

    We document what we find and identify the actual source of the failure — whether that’s a seam separation, flashing failure, ponding-related damage, or membrane deterioration. No guesswork.

  • System-Specific Repair

    Different roof systems require different repair methods. A TPO repair is not the same as a modified bitumen repair. We use the right materials and techniques for your specific system.

  • Condition Assessment & Recommendations

    After the repair, we give you an honest picture of the roof’s overall condition. If additional areas are at risk, we’ll show you what we found and let you decide how to proceed.

Roof Types We Repair

  • TPO
  • Modified Bitumen
  • Built-Up Roofing (BUR)
  • PVC
  • Coated Roof Systems
  • Commercial Metal Roofs

Common Repair Types

  • Seam repairs and re-welding
  • Flashing replacement
  • Drain repair and resloping
  • Blister and membrane patch
  • Penetration resealing
  • Parapet wall and coping repair

Common Questions About Commercial Flat Roof Repair

How quickly can you respond to an active leak?

We prioritize active leak calls and work to get a crew on-site as quickly as possible. For emergency situations, call us directly at 972-318-1500 and we’ll discuss your options right away.

Why does my flat roof keep leaking in the same area?

Recurring leaks usually mean the original repair addressed the symptom but not the source. Water on a flat roof can travel significant distances before penetrating — the entry point may be several feet from where you see damage inside. A proper inspection traces the water path back to the actual failure point.

How long does a commercial flat roof repair last?

A properly executed repair on a roof that still has useful life left can last many years. The key factors are how thoroughly the root cause was addressed, the quality of materials used, and the overall condition of the surrounding roof system.

Do you work on all types of commercial flat roofs?

Yes. We repair TPO, modified bitumen, built-up roofing (BUR), PVC, coated systems, and commercial metal roofs. Each system has different repair requirements and we’re experienced across all of them.

Why Choose Anderson Roofing & Contracting?

Our reputation means everything to us and we stand behind every project we are a part of. You can rest assured that the job will be done right and attention will be paid to every detail.

Free Estimates

We provide free inspections and estimates.

10 Year Labor Warranty

We stand proudly behind our work
and provide a 10-year labor warranty on all re-roofing projects.

Licensed & Insured

You can rest assured – Anderson Roofing is licensed and insured.

Priority Is Quality

We emphasize on-site management, quality assessment checks, safety, and cleanliness

Family Owned

We’re a family-owned and operated Texas business.

Professional & Polite

We stress professionalism and excellence in everything we do

Get A Free Estimate

Contact our team of roofing experts today for exceptional service and professionalism.

We look forward to assisting you with all of your roofing and gutter needs!

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