Commercial Roof Inspection in Hagerstown and Frederick, MD
Most flat roofs around here get inspected when a ceiling tile stains, not before. We inspect commercial roofs across Washington and Frederick counties on a spring and fall schedule, and you get a written photo report that's yours whether or not you hire us for the repair.
Twice a yearSpring and fall, plus after any major storm.
- Drone and on-foot inspection
- Photo report, rated by roof area
- Scheduled around your hours
Schedule a roof inspection
Tell us the building and we will call you back with a time.
Why twice a year, and why it has to be written down
Your warranty says so. Nearly every manufacturer system warranty on a TPO, EPDM, PVC or modified bitumen roof requires documented maintenance: a professional inspection, clear drains, debris removed and the conditions recorded. When a claim comes in years later, the manufacturer asks for the file. No file is grounds to deny the claim, even for a real defect.
Water that sits is a warranty problem. Standing water on a flat roof for more than 48 hours violates most manufacturer specifications. A spring inspection catches the clogged drain before summer storms turn it into a pond.
An inspection that ends with a handshake doesn't protect you. The report does.
What we check on a flat or low-slope roof
We start inside, where leaks show first: stained ceiling tiles, rust streaks on deck joists, damp insulation around rooftop units. Then the roof, from the air with a drone and on foot for everything else.
Membrane surface
Punctures, blisters, open laps, chalking from UV, and areas worn by foot traffic to rooftop units.
Seams
Every field seam and every patch. On TPO and PVC, seams are heat-welded. On EPDM they're taped. Both fail at the edge first.
Flashings
Where the roof meets walls, parapets, HVAC curbs, pipes, skylights and drains. This is where most commercial leaks start.
Drainage
Drains, scuppers, gutters and downspouts, and any area holding water.
Edge metal and parapet caps
Loose fasteners and open joints that let wind under the membrane.
Rooftop equipment
HVAC curbs, pitch pockets around conduit, satellite mounts, and anything added since the roof went on without the manufacturer's flashing detail.
Storm damage
Hail bruising, wind-lifted edges and debris, photographed as we go.
The report
Every finding gets a photo and a spot on a roof sketch. More on that below.
What's in the report
Each roof area gets a rating: good, fair or poor. You also get our view on three things: what needs attention now, what can wait until the next inspection, and whether the roof is heading toward repair, recover or replacement.
If a repair is needed, you get a separate written estimate. The inspection report stands on its own. Forward it to your owner, your insurer or your roof's manufacturer.
Infrared scans and core cuts
A visual inspection finds what's wrong on top of the roof. It can't see under the membrane. Wet insulation under a sheet that still looks fine is invisible from above.
An infrared moisture scan, done at dusk when wet insulation holds heat longer than dry, maps that. It's worth it before you decide between a recover and a tear-off, and before a property sale, where roof evaluations often follow the ASTM E2018 framework.
A core cut takes a small sample through the roof to confirm the layers and the moisture, then gets patched the same visit. Neither is needed on a routine spring or fall check. We'll say when one is.
Hagerstown is a flat-roof town
Big roofs along I-81 and I-70
The distribution and trade buildings that followed the interchange carry some of the largest roof spans in the region. On a roof that size, one blocked drain floods a lot of insulation before anyone inside notices.
Older roofs downtown
Older stock along Dual Highway and through downtown has the opposite problem: smaller roofs with two or three layers of history on them. Those are the roofs where a core cut earns its keep.
Your building stays open while we're on it. We schedule inspections around operating hours, keep the loading dock and parking clear, and let tenants know when someone will be on the roof above them.
What a commercial roof inspection costs
Our residential inspections are free. Commercial inspections are priced by the building, so call us with the address and roof size and we'll give you a number before anyone climbs a ladder.
One contractor across three states
Home Source Roofing is family-owned and veteran-owned, run by brothers Brandon and Chris Moye since 2022, out of Williamsport and downtown Frederick. If you manage buildings across the tri-state, we're licensed in all three states.
Commercial roof inspection FAQs
How often should a commercial roof be inspected?
Twice a year, spring and fall, plus after any major storm. That's the National Roofing Contractors Association's guidance, and it's also what most manufacturer warranties require to stay in force. Spring catches winter damage before summer downpours. Fall clears drains before leaves and ice.
What does a commercial roof inspection include?
An interior walk for stains and damp insulation, a drone overview and an on-foot check of the membrane, seams, flashings, drains, edge metal and rooftop equipment. You get photos of each finding, a good, fair or poor rating by area, and a list of what needs doing now.
Can an inspection void my roof warranty?
No. Skipping inspections is what puts a warranty at risk. Most manufacturer system warranties require documented maintenance and can deny a claim without records. Repairs are different: unauthorized work by a non-certified crew can void coverage, so check who's doing the work.
Do I need an infrared scan?
Not for a routine check. An infrared scan maps wet insulation under an intact membrane and typically runs about $400 to $600 here. It's worth it before choosing between a recover and a tear-off, and before buying or selling a building.
Can you inspect while my building is open?
Yes. We schedule around your hours, keep the dock and parking clear and tell tenants when someone will be on the roof. Most inspections don't interrupt anything inside.
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 your roof on a schedule
Spring and fall, documented, with a report you can forward. Tell us the building, the roof type if you know it and when the last inspection was.
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.