TPO Roofing for Mobile and Baldwin County Buildings
Wise Builders installs and replaces TPO roofs on offices, retail centers, warehouses, churches, and apartments across Mobile and Baldwin County. 60 and 80 mil membrane, mechanically attached or fully adhered, over insulation sized for your building.
You get a written scope with every layer listed, a fixed price, and a manufacturer warranty.
Call (251) 305-7282 for a free roof inspection.
★★★★★ 5.0 on Google · 160+ verified reviews · Alabama GC License #60291 · Licensed, bonded & insured
What Goes Into a TPO Roof
TPO is a white, heat-welded single-ply membrane. It is the most common new low-slope roof in the country because it is cost-effective, reflective, and easy to repair.
Membrane Thickness
45, 60, or 80 mil. 60 mil is the standard choice here; 80 mil buys more years on the roof for a small premium. Thickness adds life, not wind rating.
Attachment
Mechanically attached with screws and plates in the seams, fully adhered with bonding adhesive, or induction-welded to plates under the membrane. We size it to your building's wind design.
Insulation and Cover Board
Polyiso insulation, tapered where the roof ponds, under a cover board that takes foot traffic and hail. The layers under the TPO decide how long it lasts.
Why TPO
TPO is a strong value for most low-slope roofs.
- White surface reflects heat and lowers cooling cost.
- Hot-air welded seams are stronger than the membrane.
- Lower cost than PVC with long manufacturer warranties.
- Easy to repair and re-weld for decades.
- Goes over a dry existing roof or over metal as a retrofit.
Where PVC Is Better
TPO is not the answer for every roof. PVC wins here.
- Restaurants and any roof with grease exhaust.
- Roofs exposed to chemicals or oils.
- Complex roofs where factory-made flashings save labor.
- Owners who want Duro-Last's longest NDL warranty terms.
- Retrofits over metal with many curbs and skylights.
What a TPO Roof Costs
TPO prices depend on what is under it and how it is attached. Here are typical ranges for a 10,000 square foot roof.
Typical Gulf Coast Cost Ranges
Typical Gulf Coast ranges for a 10,000 square foot TPO roof. Your inspection replaces these with one fixed price.
| System | Cost per Sq Ft | 10,000 Sq Ft Roof | On-Site Time |
|---|---|---|---|
| TPO recover over a dry existing roof60 mil, cover board | $8.00 to $11.00 | $80,000 to $110,000 | 1 to 2 weeks |
| TPO retrofit over a metal roofflute fill, insulation board, 60 mil | $6.00 to $8.00 | $60,000 to $80,000 | 2 to 3 weeks |
| TPO tear-off and replace, mechanically attached60 mil, code insulation | $13.00 to $16.00 | $130,000 to $160,000 | 2 to 3 weeks |
| TPO tear-off and replace, fully adhered60 mil, code insulation | $13.00 to $16.00 | $130,000 to $160,000 | 2 to 3 weeks |
| Upgrade from 60 mil to 80 mil membrane | add $0.30 to $0.60 | add $3,000 to $6,000 | No change |
Fully adhered TPO costs a little more than mechanically attached but holds better in high wind and has no fastener plates under the membrane. Thicker membrane buys more years on the roof, not more wind rating.
What Changes a TPO Price
Most TPO bids look alike until you read what is under the membrane.
Insulation and Cover Board
The board under the TPO decides how the roof walks, drains, and insulates. Tapered insulation fixes ponding but adds cost. We spell out every layer.
Attachment Method
Mechanically attached, fully adhered, or induction-welded plates. Each one has a different price and a different wind rating. We size it to your address.
Warranty Tier
A manufacturer No-Dollar-Limit warranty requires an approved contractor and a manufacturer inspection. It costs more than a materials-only warranty and is worth it.
Ranges are installed costs for a simple 10,000 square foot low-slope roof. Deck, purlin, and wet-insulation replacement, HVAC curb work, and permits are priced after we inspect the roof.
"Jim Brock is the best project manager ever! He constantly communicated with me about the materials, build and timeline. No stones were unturned! Exceptional work by his team."
From Inspection to Warranty
Every commercial roof runs through one contract and one project manager. You make the decisions. We carry the crew, the permit, the inspections, and the warranty paperwork.
Step 1. Roof Inspection and Core Cuts
We walk the roof and check the membrane or panels, seams, flashings, curbs, drains, gutters, and edge metal. We cut cores to see the layers and test the insulation for moisture, and we look at the deck or purlins from inside when we can.
Step 2. Options and a Fixed Price
You get a written proposal with every layer, thickness, fastening pattern, and warranty term listed, plus a fixed price. When repair, coating, recover, and replacement are all real options, we price them side by side.
Step 3. Wind Design and Permit
We size the fastening, perimeter and corner enhancement, and edge metal to the design wind speed for your address, then pull the permit with the city or county that has your building.
Step 4. Schedule Around Your Business
We plan the work around your hours. On occupied buildings we work in sections, protect HVAC intakes, and dry in every section before the crew leaves. Your doors stay open.
Step 5. Install With Daily Updates
Your project manager is on the roof with the crew and sends progress photos. Hidden damage, like rusted purlins or wet insulation, is priced at the unit price in your proposal and approved by you before we fix it.
Step 6. Inspection, Warranty and Closeout
The manufacturer inspects the finished roof before it issues the warranty. You get the warranty, the final inspection, lien waivers, and a photo record of the roof, start to finish.
"Great people, great work and great experience. Great communication by William Fields. Work was done on schedule and exactly as stated. I will use these guys again!"
Work From Our Recent Jobs
Two recent Duro-Last PVC retrofits over rusted metal roofs: The Homestead Mobile in Theodore and the Mobile SPCA in Mobile.
See the full scope of both jobs on our commercial roofing page. We also build out commercial interiors, like Breakout Games at The Wharf.
Why Building Owners and Property Managers Hire Us
One Contractor, Roof and Building
We are a licensed general contractor, not only a roofer. When a leak has ruined ceilings, drywall, or insulation, the same crew and the same project manager fix the inside too.
One Fixed Price, in Writing
The proposal lists the system, every layer, the warranty term, and unit prices for hidden damage. The price changes only through a written change order you sign first.
Built for Small and Mid-Size Buildings
Offices, retail centers, churches, metal shops, and apartments are our focus. Your roof gets a dedicated project manager, not the crew left over from a warehouse job.
The Credentials Behind Every Commercial Roof
Wise Builders holds Alabama General Contractor License #60291 and is a Duro-Last approved contractor, which lets us offer manufacturer No-Dollar-Limit warranties up to 30 years, depending on the system. Every commercial roof also carries our 5-year workmanship warranty. We carry general liability and workers' compensation and are BBB accredited.
Before you sign with anyone, ask for the license number, a certificate of insurance, and a sample of the warranty you will actually receive. A No-Dollar-Limit warranty covers labor and materials for leaks. A materials-only warranty does not. We send ours with the proposal.
"The contract was clear and all work was performed on schedule. A certificate of compliance was issued by a third party after inspection. It is refreshing to find a company like this."
Frequently Asked Questions About TPO Roofing
How long does a TPO roof last on the Gulf Coast?
A well-installed 60 mil TPO roof typically lasts 20 to 25 years here, and 80 mil longer. Heat, UV, and ponding shorten it; good drainage and twice-a-year maintenance extend it.
45, 60, or 80 mil TPO?
60 mil is the standard choice here. 45 mil is the budget option and wears through sooner in Gulf Coast heat. 80 mil adds years for $0.30 to $0.60 per square foot more.
TPO vs PVC: which is better?
TPO costs less and works on most roofs. PVC handles grease, chemicals, and complex flashing better and carries longer warranty terms. See our PVC roofing page for the full comparison.
How much does a TPO roof cost per square foot?
On the Gulf Coast, a TPO roof typically runs $6 to $16 per square foot: $8.00 to $11.00 as a recover over a dry roof, $6.00 to $8.00 as a retrofit over metal, and $13.00 to $16.00 as a full tear-off with code insulation. A 10,000 square foot TPO tear-off is roughly $130,000 to $160,000.
Can TPO go over my existing roof?
Often, yes. Over one dry layer, TPO goes over a cover board as a recover. Over metal, it goes over flute fill and insulation board as a retrofit. Core cuts tell us which applies.
Does a white TPO roof lower cooling bills?
Yes. A white membrane reflects most of the sun's heat instead of soaking it into the building, and the new insulation under it does the rest. The biggest savings show up on buildings that had a dark roof or no insulation.
Ready for a TPO Roof Built Right?
Your TPO roof starts with a free inspection, core cuts, and a written, fixed price. Nothing to pay and nothing to sign.
Wise Builders Roofing and Renovations holds Alabama General Contractor License #60291, is a Duro-Last approved contractor, and brings one project manager, one written scope, and one fixed price to every commercial roof in Mobile and Baldwin County.
Call our Mobile headquarters at (251) 305-7282 or our Foley office at (251) 270-5270, or send the form and we will set a free roof inspection.
Wise Builders Roofing and Renovations, 6215 Rangeline Rd #105, Theodore, AL 36582 and 105 W Camphor Ave #100A, Foley, AL 36535.
"William is great to work with. Wise Builders are extremely thorough and professional. Everything was done exactly how and when they said it would be. A++++"