TPO Roofing in Hagerstown and Frederick, MD
TPO is the white single-ply roof you see on the newer warehouses and retail buildings along I-81. It's the top tier of the three flat-roof systems we price side by side on every commercial proposal, above EPDM rubber and a peel-and-stick asphalt membrane.
- Heat-welded seams
- Three systems priced side by side
- No section left open overnight
Cost data compiled from Angi, HomeGuide and contractor surveys. That's not a quote. The only way to know your building's number is to have someone on the roof.
What TPO is
TPO stands for thermoplastic polyolefin. It's a reinforced plastic sheet, usually white, that comes in rolls 6 to 12 feet wide. The rolls are laid over insulation on the roof deck, then the overlaps are welded together with hot air. Once welded, the seams are one piece of material. There's no glue line and no tape to let go.
Mechanically fastened: screws and plates through the membrane into the deck, with the seam welded over them. Faster, cheaper, the norm on big open roofs.
Fully adhered: glued to the insulation across the whole surface. Quieter in wind, better on odd shapes, more labor.
How a white roof does in Washington County weather
A white TPO surface reflects most of the sun instead of soaking it up, so the insulation under it stays cooler. That's why TPO is the default on buildings with big cooling bills. Standard TPO meets ENERGY STAR's reflectivity criteria.
The first generation of TPO got brittle in cold and cracked at the seams, and that reputation still follows the product. Current formulations are better, and the 60 and 80 mil sheets handle freeze-thaw well. It's still the honest reason EPDM is on our proposals: rubber stays flexible in cold.
On a flat roof, all the rain and snow has to find a drain. Drain layout and slope, not the membrane brand, decide whether a flat roof here lasts.
TPO, EPDM or peel-and-stick: the three we quote
Every flat-roof proposal from us prices all three, so you can see the difference in writing.
Lifespans are the ranges national guides publish (This Old House, BuildVision, Angi), not a warranty. Your warranty comes from the manufacturer and the installer, and it depends on maintenance.
What a TPO installation involves
Inspection and a core cut
We look at the roof from the air and on foot, then take a small sample through the layers to see what's there and whether the insulation is wet.
Repair, recover or replace
A dry roof with one layer can often take TPO over it on a separation board. Wet insulation or two layers means a tear-off. Sometimes the right answer is a repair, and we say so.
Insulation
Rigid board, tapered toward the drains where the roof needs help shedding water.
Membrane
Fastened or adhered, then every seam welded and probed.
Flashings
Walls, parapets, HVAC curbs, pipes and drains get the manufacturer's detail. This is where flat roofs leak, so it's where the time goes.
Edge metal and drains
New edge metal, scuppers cleared or resized, and a water test before we leave.
On an occupied building we sequence the work so no section is left open overnight, and we keep the dock and parking usable.
What moves the price
- Tear-off or recover. Tear-off adds labor and dumpsters. It's the single biggest swing.
- Insulation thickness. More R-value means more board.
- Membrane thickness. 60 mil costs more than 45 and less than 80.
- Curbs and penetrations. Every HVAC unit, pipe and skylight is hand-flashed.
- Height and access. A second-story roof with a crane lift costs more than a one-story warehouse you can walk a ladder to.
- Warranty tier. A manufacturer system warranty with no dollar limit costs more up front than a material-only warranty.
Small roofs cost more per foot because a crew's day costs the same whether it covers 1,500 feet or 10,000.
The warranty, and the paperwork that keeps it
A TPO roof usually comes with two warranties: ours on the workmanship and the manufacturer's on the system. Nearly every manufacturer warranty requires documented inspections and maintenance to stay in force. No records can mean no coverage when a claim comes in.
That's why we put every commercial roof on an inspection schedule after install. See commercial roof inspections.
TPO in Hagerstown
Meritus Park, the ballpark downtown, got a new TPO roof system in August 2024. Washington County specified a TPO system when it bid the re-roof of the County Office Building.
It's the system this town's public buildings are choosing.
Not sure TPO is the one?
Family-owned and veteran-owned, run by brothers Brandon and Chris Moye since 2022, out of Williamsport and downtown Frederick.
TPO roofing FAQs
How long does a TPO roof last?
National guides put it at 20 to 25 years. The roof's drainage and its maintenance record matter as much as the membrane. A TPO roof with clear drains and twice-yearly inspections outlasts one that holds water every spring.
Is TPO better than EPDM?
Different. TPO is white and reflects summer heat, and its welded seams are stronger than EPDM's taped ones. EPDM stays more flexible in cold and typically lasts longer, 25 to 40 years. On a building with a big cooling bill, TPO usually wins. On a long-hold building where lifespan matters most, we often point to EPDM.
Can TPO go over my existing roof?
Often, if the existing roof is dry and there's only one layer. We confirm with a core cut before anyone quotes a recover. Wet insulation has to come out, or the new roof traps it.
How much does TPO roofing cost per square foot?
About $5 to $12 per square foot installed nationally in 2026, with 60-mil TPO in the $6.50 to $10.50 band. Tear-off, insulation thickness and the number of rooftop units move your number. Our estimate is itemized and free.
Is TPO good for cold winters?
At 60 mil and up, yes. The cracking stories come from first-generation TPO and thin 45-mil sheets. If your roof is shaded, holds snow and you plan to own the building for 30 years, ask us to price EPDM beside it. We do that on every proposal anyway.
Hear From Our Customers
On February 7, 2026, a severe windstorm pulled several shingles off my roof. When I went out the next day to collect some of the fallen pieces, I was surprised to see how deteriorated they were—what looked fine from the ground was actually in pretty bad shape up close. A trusted friend recommended Home Source Roofing out of Williamsport, Maryland, and I’m glad they did. Michele from Home Source came out on February 11 to assess the damage using both a drone and a ground inspection. She recommended immediate tarping due to incoming rain, and it was completed the very next day—just in time, because we had several days of heavy rain right after. I also had Home Source look at a gutter and downspout issue that was contributing to shingle problems. They recommended a solution, and I chose to have that work done in addition to the roof replacement. Shortly after, I received a very reasonable quote with two package options using GAF Timberline HDZ shingles in Hunter Green. I chose the Gold package, which offered additional protection with upgraded underlayment and enhanced vent covers. Both options featured 50-year shingles, which gave me great peace of mind. On March 18, the crew arrived right on time and got straight to work. The entire process was incredibly organized and efficient. They started by laying protective tarps over my porches and yard, then moved seamlessly through removing the old shingles, making necessary repairs, and installing the new roof. The onsite lead, Christian, kept everything running smoothly and maintained great communication throughout the project. The owner, Brian, also personally stopped by on the day of installation to ensure everything was proceeding as planned, which I really appreciated. In addition, Rene from Home Source stopped by to review and coordinate the upcoming gutter and downspout work, working directly with Superior Seamless Gutters LLC to ensure everything was aligned. At one point during the tear-off, my porch was completely covered in old shingles—it looked a little wild—but by the time they finished, everything was spotless. You would never know they had been there. I’ve included before-and-after photos to show the condition of the old shingles and the quality of the finished roof. Overall, this was a fantastic experience from start to finish. The professionalism, responsiveness, attention to detail, and cleanup exceeded my expectations. I highly recommend Home Source Roofing to anyone in need of roofing services!
We had a wonderful experience with HomeSource Roofing for our new roof and gutters. From the very first phone call, they were quick to respond and made it easy to set up an appointment with their sales representative. Communication throughout the entire process was excellent—they kept us informed, answered our questions promptly, and were very organized. Anytime I had a question, it was answered quickly and efficiently, which gave us a lot of confidence in the process. The pricing was very fair, and we feel we received a great value for the quality of work provided. On top of that, their crew did a fantastic job cleaning up our property once the work was finished, leaving everything neat and tidy. Overall, HomeSource Roofing was professional, efficient, and easy to work with. We are very pleased with the results and highly recommend them!
We had a great experience with Home Source Roofing from start to finish. The Chris B and his team was professional, on time, and easy to work with throughout the entire process. They clearly explained everything, answered all of our questions, and made sure we were comfortable with the plan before getting started. The quality of the work really stands out — our roof looks amazing and we feel confident it was done the right way. The crew worked efficiently, kept the area clean, and respected our property the whole time. It’s hard to find contractors you can trust, but Home Source Roofing delivered exactly what they promised. I would definitely recommend them to anyone looking for reliable, high-quality roofing work.
May 11, 2026 - I have an Excellent experience with Home Source Roofing from start to finish. John Moye is a very professional, knowledgeable, explained everything clearly and easy to work with. The team arrived on time, and the quality of work was outstanding, especially cleanup was very neat. The whole process was smooth for 1 day job. I'm highly recommend!
Knowledgeable, friendly, did a excellent job in a day, and I would recommend them. I got the architectural shingles rated for 130 mph winds. Less than 3 weeks or so from the time they came out to look, to complete roof installation.
Huge shout out to JR and his crew!!! I can't believe how fast our roof went on and how good it looks! Home source will definitely be my go to from now on. Thanks guys
Get three flat-roof prices on one proposal
Peel-and-stick, EPDM and TPO, priced side by side for your building. After we've been on the roof, not before.
Hagerstown, Williamsport and Washington County: (301) 848-8508
10226 Governor Lane Boulevard, Unit 4010, Williamsport, MD 21795
Frederick County: (240) 772-5242
241 E 4th Street, Unit 206B, Frederick, MD 21701
Monday to Friday 8 to 5, Saturday 9 to 1.