Commercial roof replacement in Tulsa runs $6.50 to $14.50 per square foot in 2026, which puts most 20,000-square-foot flat roofs between $130,000 and $290,000 all-in. A basic TPO recover over an existing membrane lands near the bottom of that range; a full tear-off with new ISO insulation, tapered crickets, and upgraded flashing lands near the top. Commercial roof replacement cost in Tulsa is a category of work that replaces the entire roof membrane and insulation system on a commercial building, and it's needed when repairs stop being cheaper than a new roof.
We're De La Cruz Roofing and Construction, and we've priced hundreds of flat roofs across Tulsa, Broken Arrow, and the surrounding counties. What follows is the actual math behind those bids - per-square-foot ranges by membrane, the line items that move the number, how long the job takes, and where insurance does and doesn't help.
What commercial roof replacement costs in Tulsa in 2026
Typical 2026 pricing in the Tulsa metro breaks down like this for a 20,000-square-foot low-slope roof:
- TPO recover (no tear-off): $6.50-$9.00/sq ft - $130,000-$180,000
- TPO full tear-off with new insulation: $9.50-$13.00/sq ft - $190,000-$260,000
- EPDM full tear-off: $8.50-$12.00/sq ft - $170,000-$240,000
- Modified bitumen tear-off: $9.00-$13.50/sq ft - $180,000-$270,000
- Built-up roofing (BUR) tear-off: $10.00-$14.50/sq ft - $200,000-$290,000
Those numbers include labor, membrane, insulation, fasteners, adhesives, flashing, and disposal. They do not include structural deck repair, HVAC curb work, or code upgrades triggered by the permit - those get added as line items once we open the roof and see what's underneath.
Smaller roofs cost more per square foot. A 5,000-square-foot roof carries the same mobilization, crane, dumpster, and permit costs as a 20,000-square-foot one, so the fixed overhead spreads across fewer squares. Expect the low end of every range above to shift up by $1.50-$3.00 per square foot on roofs under 8,000 square feet.
Cost per square foot by roofing system
Membrane choice is the single biggest lever on your bid. Here's how the four systems we install most often in Tulsa compare.
TPO (thermoplastic polyolefin)
TPO is the default for most Tulsa commercial buildings because it's white, reflects Oklahoma summer sun, and welds into a seamless sheet. A 60-mil TPO membrane runs $6.50-$9.00 per square foot on a recover and $9.50-$13.00 on a tear-off. If you want the full spec sheet, our TPO Roofing Systems in Oklahoma page walks through membrane thickness, weld strength, and warranty tiers. TPO is also the most common choice for Commercial Roofing in Tulsa because it handles the hail and UV load here better than most alternatives at the same price point.
EPDM
EPDM is the black rubber membrane you've seen on warehouses and older retail centers. It's cheaper on material than TPO and more puncture-resistant, but it absorbs heat instead of reflecting it. Full tear-off pricing lands at $8.50-$12.00 per square foot. For buildings with heavy foot traffic from HVAC techs, EPDM is often worth the tradeoff.
Modified bitumen
Mod bit is the asphalt-based rolled membrane, usually installed in two plies. It's tough, it's repairable, and it's common on Tulsa buildings from the 1980s and 1990s. Tear-off pricing runs $9.00-$13.50 per square foot. The catch is weight - a two-ply mod bit system adds significant load, so we check the structural deck before recommending it on older buildings.
Built-up roofing (BUR)
BUR is the oldest system still in service - alternating layers of felt and asphalt, topped with gravel. It's the most expensive to replace at $10.00-$14.50 per square foot, mostly because tear-off is slow and disposal is heavy. If your building already has BUR, we usually recommend switching to TPO or EPDM on the replacement rather than re-layering.
What factors affect commercial roof replacement cost in Tulsa?
Six variables move a Tulsa commercial roof bid more than anything else:
- Roof size and access. A roof you can reach with a ladder and a conveyor costs less than one that needs a crane over a parking lot. Crane days in Tulsa run $2,500-$4,500 each.
- Tear-off vs. recover. Removing the old membrane adds $2.00-$4.00 per square foot in labor and disposal. Oklahoma landfills charge by weight, and wet insulation is heavy.
- Insulation and R-value. Current Oklahoma code requires R-25 for low-slope commercial roofs in most jurisdictions. Adding polyiso to hit that number runs $1.25-$2.50 per square foot.
- Deck condition. Rusted or delaminated steel deck gets replaced at $3.50-$6.00 per square foot. We don't know how much until the old roof is off.
- Flashing and penetrations. Every HVAC curb, vent, drain, and skylight is a detail that has to be flashed. A roof with 40 penetrations costs more than one with 12.
- Season and schedule. TPO and EPDM adhesives need surface temps above 40°F. Winter work in Tulsa is doable but slower, and rush schedules cost more.
If you want a real number instead of a range, the only way to get it is a walk of the roof. We do that as part of every Commercial Roof Inspections in Oklahoma visit - moisture scan, core samples, deck probe, and a written scope with line-item pricing.
How long does commercial roof replacement take in Tulsa?
A 20,000-square-foot TPO recover takes 5-8 working days. A full tear-off with new insulation on the same roof takes 10-15 working days. Add a week if the deck needs significant repair or if the building has more than 30 penetrations.
Weather is the wild card. Tulsa gets 40+ inches of rain a year, and a roof that's torn open has to be watertight every night. We tear off in sections and close each section the same day, which is why tear-offs take longer than recovers even though the square footage is identical.
Occupied buildings add time too. If your tenants park under the work zone or your HVAC runs during business hours, we schedule around them. Most Tulsa commercial replacements we run happen in phases so the building stays operational the whole time.
Does insurance cover commercial roof replacement in Tulsa?
Insurance covers commercial roof replacement in Tulsa when the damage is sudden and accidental - hail, wind, tornado, or a falling object. It does not cover wear, age, ponding water, or deferred maintenance, and most carriers will deny a claim if the roof was already past its service life.
Oklahoma is a hail state. A single storm can total a 15-year-old TPO roof, and we've seen carriers approve full replacements on roofs that would have lasted another decade in a milder climate. The key is documentation: photos, moisture readings, and a scope that separates storm damage from pre-existing wear.
What insurance rarely covers:
- Code-required upgrades like added insulation or new crickets
- Deck repair from long-term rust or rot
- Interior damage from a leak the owner knew about and didn't fix
- Cosmetic damage that doesn't affect function
We work directly with adjusters on Tulsa commercial claims and write our scope in the same format carriers use, which cuts the back-and-forth significantly.
Financing a commercial roof replacement in Tulsa
Most Tulsa commercial roof replacements are financed, not paid in cash. Three routes we see work:
- Equipment/improvement loans: 5-10 year terms, 7-11% APR for established businesses.
- Manufacturer financing: TPO and EPDM manufacturers offer extended-term programs tied to their warranty.
- Property-assessed clean energy (PACE): available in some Oklahoma counties for energy-improving roof work.
A $200,000 roof on a 7-year note at 9% runs about $3,200 a month. That's usually less than the leak repairs, tenant complaints, and emergency tarping a failing roof generates in the same period.
Common mistakes we see on Tulsa commercial roof bids
We get called to re-bid jobs other contractors walked away from, and the same problems show up again and again.
- Bidding a recover without checking the existing membrane. If the old roof is wet, you're trapping moisture and the new membrane fails in three years.
- Skipping the moisture scan. A $600 infrared scan finds wet insulation that would otherwise cost $40,000 to discover after the fact.
- Ignoring code-required R-value. Tulsa and most surrounding jurisdictions require R-25 on low-slope commercial roofs. Bids that skip it come back as change orders.
- No written scope. "Replace the roof" isn't a scope. You need membrane thickness, attachment method, insulation type and thickness, flashing details, and warranty terms in writing.
- Chasing the lowest number. The cheapest bid is usually the one missing insulation, using 45-mil instead of 60-mil membrane, or skipping the deck inspection.
When to call a professional
Call us when you see any of these: ponding water that's still there 48 hours after rain, interior ceiling stains that keep coming back, membrane blisters or wrinkles, exposed fasteners, or a roof that's more than 18 years old and has been patched twice in the last three years.
We'll walk the roof, run a moisture scan, and tell you straight whether you need a replacement or a repair. If a $4,000 repair buys you three more years, we'll say so. If the roof is done, we'll show you why with photos and core samples. Our Commercial Roof Replacement in Oklahoma team handles everything from the permit to the final inspection, and we do it on occupied buildings without shutting you down.
Frequently Asked Questions
How much does commercial roof replacement cost in Tulsa?
Most Tulsa commercial roof replacements run $6.50-$14.50 per square foot in 2026. A 20,000-square-foot TPO recover lands around $130,000-$180,000; a full tear-off with new insulation runs $190,000-$290,000 depending on membrane type and deck condition.
What factors affect commercial roof replacement cost in Tulsa?
Roof size, tear-off vs. recover, insulation R-value, deck condition, number of penetrations, and season. Tear-off adds $2.00-$4.00 per square foot; code-required R-25 insulation adds $1.25-$2.50. Deck replacement, if needed, runs $3.50-$6.00 per square foot.
How long does commercial roof replacement take in Tulsa?
A 20,000-square-foot TPO recover takes 5-8 working days. A full tear-off with new insulation takes 10-15 working days. Rain delays and occupied-building phasing can add a week. We close every torn-off section the same day.
Does insurance cover commercial roof replacement in Tulsa?
Yes, when damage is sudden and accidental - hail, wind, or falling objects. Oklahoma's hail season produces a lot of approved claims. Insurance does not cover age, wear, ponding water, or deferred maintenance, and code upgrades are usually out of pocket.
Do you offer commercial roof replacement financing in Tulsa?
We work with lenders who finance commercial roof projects on 5-10 year terms. A $200,000 roof on a 7-year note at 9% runs roughly $3,200 a month. We'll connect you with a lender before work starts so the numbers are clear.
Get help with Commercial Roofing in Tulsa
If your Tulsa commercial roof is at the end of its life, we'll walk it, scan it, and give you a written scope with real numbers - no guesswork, no pressure. Call De La Cruz Roofing and Construction at 855-516-6090 and we'll schedule the inspection this week.