Flat roofs on Houston commercial buildings often fail at the seams where cheap crews skipped proper heat welding. In our subtropical climate with hot humid summers and mild winters, standing water sits longer and softens the membrane faster than in drier areas. We use Carlisle Sure-Seal EPDM on most jobs because it holds up better to the constant moisture and UV we get here.
Harris County permit rules require a licensed contractor to pull papers on any roof work over 100 square feet. Many fly-by-night outfits skip this step and leave the owner holding the bag when an inspector shows up. We always pull the permit and schedule the inspection so the job stays legal and the building passes without extra fees later.
Ponding water near HVAC units is the number one leak source we see on flat roofs in River Oaks and Midtown. The drains get clogged with leaves and the water sits for weeks. We add tapered insulation and new drains during repairs so the water actually moves instead of eating through the membrane again in a year.
Call 713-555-0199 today if your commercial flat roof is leaking. We can be on site the same day in most Harris County spots and give you a clear plan before the next rain hits.
Commercial Flat Roof Services We Offer
✓Emergency Tarp-Over Service
We throw a reinforced tarp and seal the edges the same day to stop active leaks on commercial flat roofs until full repair can happen.
✓TPO Roof Restoration
We clean, prime, and apply a reflective coating over existing TPO to add five to seven years of life without a full tear-off.
✓EPDM Seam Repair
We cut out failed seams on EPDM systems and install new 6-inch reinforced tape plus compatible adhesive so the roof stays watertight.
✓Modified Bitumen Patch
We replace damaged sections of modified bitumen with torch-down material that matches the existing roof and holds up to Houston heat.
✓Drain and Scupper Cleaning
We clear clogged drains and scuppers on commercial flat roofs to stop ponding water before it damages the membrane.
Commercial Flat Roof Cost in Houston, TX
| Service | Typical Range | What Affects It |
|---|---|---|
| Repair a Roof Leak | $450–$1,800 | Size of patch and whether insulation needs replacement. |
| Section Replacement | $2,200–$6,500 | Square footage, material type, and roof height. |
| Full Flat Roof Restoration | $4,800–$14,000 | Coating grade and number of coats required. |
| Emergency Tarp-Over | $650–$1,450 | Roof size and how fast we need to reach the site. |
| Free Estimate | Free | Call 713-555-0199 for same-day visit in most Houston areas. |
Ranges are typical for Houston, TX and confirmed with an exact written quote before any work starts.
How it works
- 1
Site Walk and Leak Check
We walk the entire roof, mark every wet spot, and use a moisture meter so we know exactly how far the damage goes before any work starts.
- 2
Material and Permit Pull
We order the right membrane and pull the Harris County permit the same day so the job stays legal and on schedule.
- 3
Repair or Section Replacement
We cut out bad areas, install new insulation and membrane, and heat-weld or tape every seam so water has no path back in.
- 4
Final Walk and Photos
We do a final check with you on the roof, take before-and-after photos, and hand over the warranty paperwork before we leave.
Pricing
Prices vary by roof size, access, and how much wet insulation we find.