Flat & Commercial Roof Repair Services in Tulsa
Proof Construction repairs and maintains every major flat roof membrane across the Tulsa metro — from retail strip centers and office buildings to apartment complexes and residential flat sections. We've been at it since 2016, and we're an Owens Corning Preferred Contractor with an A+ BBB rating and 4.9★ across 100+ reviews. Every repair includes a free inspection, photo-documented scope, and moisture verification when the job is done.
TPO Membrane Repair
Thermoplastic polyolefin is Tulsa's most common commercial membrane — and its white reflective surface takes a beating from UV and hail. We repair punctures, seam separations, and fastener back-out, and reinforce high-stress areas with manufacturer-compatible patches and heat-welded seams.
EPDM Rubber Roof Repair
EPDM's flexible rubber stands up to Oklahoma's temperature swings, but seams, flashings, and foot-traffic areas fail over time. We perform watertight seam splicing, tear and split repairs, and flashing replacement using proper EPDM adhesives and primers.
Modified Bitumen Repair
Common on older commercial roofs, modified bitumen develops alligatoring, blisters, and granule loss as the surfacing wears. We torch- or cold-apply repair plies, replace deteriorated cap sheets, and restore protection at parapets and terminations.
Leak Detection & Tracing
Flat roof leaks rarely show up where they enter — water can travel 20+ feet under the membrane. We use moisture meters and systematic tracing to find the true entry point, not just the ceiling stain, then verify the repair with moisture readings.
Ponding Water Solutions
Standing water that lingers 48+ hours after rain accelerates membrane breakdown and adds tons of structural load. We fix drainage with additional drains or scuppers, tapered insulation systems, and low-spot membrane corrections.
Preventive Maintenance Plans
Scheduled bi-annual inspections, drain and debris clearing, seam and flashing checks, and small repairs before they become emergencies — with photo-documented reports that keep commercial warranties valid. See commercial roofing.
Signs Your Flat Roof Needs Repair
Flat roofs fail quietly. By the time you see a ceiling stain, the membrane may have been compromised for months. If you spot any of these on your Tulsa property, schedule a free inspection:
- Standing water that remains more than 48 hours after rain
- Blistering, bubbling, or fish-mouthing in the membrane surface
- Seam separation or peeling at membrane laps and terminations
- Cracks, splits, or alligatoring from UV exposure and age
- Granule loss or exposed reinforcement on modified bitumen roofs
- Ceiling stains, musty odors, or interior moisture below the roof
- Damage around penetrations — HVAC curbs, pipes, skylights, and parapets
- Hail or storm damage — impact marks, punctures, and wind-lifted flashing
Storm damage to flat roofs is typically covered by commercial property insurance. We document damage forensically and meet your adjuster on the roof — see how insurance claims work.
Our Flat Roof Repair Process
- Free inspection & moisture testing: We walk the roof, photograph every concern, and trace active leaks with moisture meters.
- Photo-documented scope & honest estimate: You get a line-item repair plan with clear pricing — no surprises, no pressure.
- Membrane-matched repair: Repairs use manufacturer-compatible materials and methods for TPO, EPDM, or modified bitumen.
- Drainage check: We verify positive drainage and flag ponding issues before they become structural problems.
- Moisture verification & warranty: We re-test repaired areas, clean up debris, and back the work with our 5-year workmanship warranty.
Flat Roof Repair Service Areas — Tulsa Metro
Our flat and commercial roof repair crews cover the entire Tulsa metro, including:
Tulsa
Retail centers, offices, and apartment buildings across the city. Tulsa roofing →
Broken Arrow
Home base — serving BA strip centers and commercial properties. Broken Arrow roofing →
Bixby
Flat roof repair for Bixby storefronts and offices. Bixby roofing →
Jenks
Commercial and residential flat sections in Jenks. Jenks roofing →
Owasso
Owasso offices, warehouses, and multi-family flat roofs. Owasso roofing →
Don't see your city? We serve the entire Tulsa metro — call (918) 734-4444 and we'll confirm same-day availability.
Flat Roof Leak? Call (918) 734-4444
Active leak? Ponding water? Hail-damaged membrane? Don't wait — water that sits on a flat roof destroys insulation, rusts decking, and grows mold within days.
- Free inspections — no charge, no obligation, same-week scheduling
- Forensic leak detection — we find the source, not just the stain
- All membranes — TPO, EPDM, modified bitumen, and built-up roofs
- 5-year workmanship warranty — 5x the Oklahoma minimum, in writing
- $98/month financing available on larger repairs
Flat Roof Repair FAQ — Tulsa
Quick Answers
Flat roof repair cost: $500–$3,500 for most Tulsa repairs, depending on membrane and scope.
Leaking now? Call (918) 734-4444 — free inspection and fast leak containment across the Tulsa metro.
Maintenance plans: Bi-annual inspections, drain clearing, and small repairs that extend membrane life. Request a plan →
Most Tulsa flat roof repairs cost $500–$3,500 depending on the membrane and the damage. Small patches and seam repairs on TPO or EPDM typically run $500–$1,500; larger blister, split, or flashing repairs run $1,200–$3,500. Ponding water corrections and membrane section replacement can run higher. These are 2026 market estimates for the Tulsa metro, not quotes — Proof Construction provides free, itemized estimates.
TPO and EPDM are the most common and effective flat roof membranes for Oklahoma's heat, hail, and freeze-thaw cycles. TPO is highly reflective and energy-efficient; EPDM is a durable rubber membrane with excellent flexibility. Modified bitumen is a strong choice for built-up and older commercial roofs. Proof Construction repairs and maintains all three — the right choice depends on your roof's slope, exposure, and budget.
Watch for ceiling stains, musty odors, blistering or bubbling membrane, standing water that lasts more than 48 hours, cracked or peeling seams, and visible splits around flashing or roof penetrations. Tulsa's intense summer UV and hailstorms accelerate membrane wear. Proof Construction offers free inspections with moisture-meter verification to find the true leak source.
Yes. Ponding water — standing water that remains 48+ hours after rain — is one of the most damaging flat roof problems. Fixes include installing additional roof drains or scuppers, tapered insulation systems to create positive drainage, and membrane repair at low spots. Correcting drainage early prevents membrane deterioration, leaks, and structural loading.
Yes. Proof Construction offers scheduled flat roof maintenance plans with bi-annual inspections, debris and drain clearing, seam and flashing checks, small repairs, and photo-documented reports. Regular maintenance extends membrane life, catches leaks early, and keeps commercial warranty coverage valid. Call (918) 734-4444 for a maintenance plan quote.