Houston's subtropical climate with hot humid summers and mild winters speeds up wear on commercial roofs. UV hits hard in summer and standing water from heavy rains finds weak seams fast. We see ponding on many flat roofs in Montrose and Midtown because drains clog or were never pitched right. Harris County requires permits for any roof work over 100 squares, and cheap crews skip this step then leave owners with fines. We always pull permits and use 60-mil TPO from Carlisle or Firestone so seams hold up longer.
A common failure point in Houston commercial stock is the flashing around HVAC curbs and skylights. Heat cycles make the metal expand and contract, then sealant cracks and leaks start. River Oaks and Heights buildings often have modified bitumen that was installed without proper base sheets, so blisters form within five years. We cut out the bad sections, install new tapered insulation, and heat-weld new membrane so water runs off instead of sitting.
Downtown and Midtown owners call us when a roof starts leaking into tenant spaces. We do not just slap on tar. We trace the leak with infrared scans, mark every wet spot, and replace only the damaged insulation and membrane. This keeps costs down and avoids full tear-offs when the rest of the roof is still good. We work around your business hours and protect the interior with tarps and drop cloths every day.
Space Center Houston and Museum of Fine Arts area buildings need roofs that handle both humidity and salt air from the coast. We specify 80-mil EPDM or TPO with reinforced edges and walk pads over mechanical units. Quick crews that use 45-mil membrane save money up front but see splits in three summers. We show owners the spec sheets and let them pick the grade that matches their budget and timeline.
Commercial Roofing Services We Offer
✓Commercial Roof Inspection
We walk every square foot, check seams, drains, and flashings, then give a written report with photos and repair priorities within 48 hours.
✓TPO Roof Installation
Full removal or overlay with 60-mil heat-welded TPO, new insulation, and edge details that meet current Harris wind codes.
✓Emergency Tarp-Over Service
Same-day or next-day tarp and temporary patch on active leaks so you can keep the building open until permanent repair.
✓Flat Roof Replacement
Complete tear-off and new tapered system on retail and office buildings in Heights, River Oaks, and Downtown with two-day notice to tenants.
✓HVAC Curb Flashing Repair
Cut out failed flashing around rooftop units, install new curb wraps and counter flashing to stop leaks at the most common entry point.
Commercial Roofing Cost in Houston, TX
| Service | Typical Range | What Affects It |
|---|---|---|
| Commercial Roof Inspection | $250–$450 | Larger buildings and multiple HVAC units push the high end. |
| Emergency Tarp-Over | $600–$1,400 | After-hours or weekend work and roof height add cost. |
| TPO Overlay per Square | $650–$950 | Includes insulation and flashing; tear-off adds $200–$400 per square. |
| HVAC Curb Flashing Repair | $350–$750 | Price per curb depends on size and access difficulty. |
| Free Estimate | Free | Call our Katy Fwy office Mon–Fri 8am–6pm or Sat 9am–2pm to schedule. |
Ranges are typical for Houston, TX and confirmed with an exact written quote before any work starts.
How it works
- 1
Site Walk and Moisture Scan
We arrive within two business days, scan for wet insulation, and mark every problem area on a roof plan.
- 2
Material and Permit Pull
We pick the membrane grade with you, order materials, and submit Harris County permit paperwork the same week.
- 3
Tear-Off or Overlay
Old material comes off when needed. New insulation and membrane go down in sections so the building stays dry each night.
- 4
Final Walk and Leak Test
We flood test seams and drains, take photos, and hand over the warranty packet before we leave the job.
Pricing
Prices move with roof size, number of penetrations, and whether a full tear-off is required.