Exterior Commercial Services
Commercial Roof Repair Services
Leaks traced to the source and repaired right the first time, on schedule and on budget.
Whether it is a slow leak over a tenant space or widespread membrane failure on a 100,000 square foot warehouse, TopKey diagnoses the cause before recommending a fix, so you are not sold a replacement when a repair will do. Our crews repair TPO, EPDM, PVC, modified bitumen, built-up, and metal roof systems across the DMV.
Most six-figure roof replacements start as small, ignorable symptoms. By the time water shows up inside the building, it has often traveled far from the entry point and soaked the insulation along the way. Caught early, most of these problems are repairs that run into the thousands. Left alone, they turn into the six-figure replacement.
What we do
Commercial Roof Repair Services
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Flat roof repair
Punctures, seam failures, blistering, ponding water, and membrane separation on TPO, EPDM, PVC, and modified bitumen systems.
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Commercial roof leak repair
Moisture detection and interior damage assessment to trace an active leak back to its source, which is rarely where the drip shows up.
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Emergency dry-in
Fast response to stop active water intrusion, followed by a documented permanent repair.
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TPO and PVC seam repair
Heat-welded seam repairs, patches, and flashing replacement on single-ply roofs.
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EPDM repair
Splice failures, shrinkage, and edge flashing repairs on rubber membrane roofs.
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Modified bitumen and BUR repair
Torch and cold-applied patches, blister repair, and flashing on asphalt-based systems.
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Metal roof repair
Fastener replacement, seam sealing, rust treatment, and panel replacement.
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Flashing, drains, and penetrations
The details where most leaks start: curbs, pipes, drains, scuppers, and wall flashings.
Benefits
Seven Signs Your Commercial Roof Needs Repair
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Ponding water
Standing water 48 hours after rain accelerates membrane breakdown and signals drainage problems.
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Open or lifted seams
Seam failure is the most common source of single-ply roof leaks.
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Blisters and bubbles
Trapped moisture or air under the membrane that will eventually split.
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Cracked or separated flashing
Flashings around walls, curbs, and pipes fail long before the field of the roof.
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Interior stains or damp insulation
By the time you see stains, the roof has been leaking for a while.
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Clogged drains and scuppers
Debris blocks drainage and turns a small problem into ponding.
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Rising energy bills
Wet insulation loses most of its R-value.
How it works
Our On-Time and On-Budget Process
Four steps from first call to finished project. No surprises at completion.
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Talk to a Professional
Call 301-245-2070 or send a request online. A TopKey team member answers your questions and scopes the first visit.
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Site Visit
We come to your property, walk the building with you, and listen to what the space needs to do.
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Estimate
You receive an accurate proposal with a realistic timeline, backed by decades of commercial construction experience.
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Job Execution
Our crews complete the repair or renovation with minimal disruption to tenants, staff, and operations.
Testimonials
What property managers say
“Top Key has done several jobs for me at various locations. We are pleased with the prompt response and attention to detail in taking care of our needs. Top Key has worked on roof repairs, stairwells, leaks, asphalt repairs, roof hatch, bollards, etc. Top Key has done top notch work and I highly recommend this company for any and all projects.”
“TopKey Construction did a number of projects at my commercial building in Md. They did parking lot restriping, and office buildouts that included beautiful, specialized accent walls. The company was efficient clean, and very easy to work with. The work was done in a timely fashion. I would highly recommend them.”
“St. John's School in Clinton, MD has used TopKey for the past 3 summers for major construction projects to enhance the safety of our school as well as making it more energy efficient with new windows. From the sales rep to the project manager to the technicians themselves have always been professional and courteous. They are always vigilant of when students are on campus and respect their safety. We would strongly recommend TopKey for any project large or small.”
“Glen, Duane, Nancy and your team did an awesome job on the Columbia Park project. Brought to light some unsafe conditions with one of the electrical panels and repaired. Addressed the hot water heater and fountain wiring issues which were outside of the original scope of work. The overall work performed was outstanding and within the scheduled time-line despite some unforeseen items that arose with the warehouse demo portion. Thank you!”
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Service area
Roof Repair Across Maryland, Northern Virginia & DC
From our Laurel, Maryland headquarters, TopKey crews serve commercial and multi-family properties within roughly 50 miles, covering Maryland, Northern Virginia, and Washington, D.C.
FAQ
Roof Repair Questions, Answered
How quickly can you respond to a commercial roof leak?
For active leaks we prioritize a dry-in visit as quickly as possible, typically within days depending on weather and location, followed by a documented permanent repair. Call 301-245-2070 and tell us it is an active leak.
How much does commercial roof repair cost?
Localized repairs on membrane roofs commonly run from several hundred to a few thousand dollars. Larger repairs involving wet insulation or multiple areas cost more. We provide a written estimate after inspection, and we will tell you if repair is not the economical choice.
Can you repair a roof another contractor installed?
Yes. We repair all commercial roof types regardless of who installed them. If the roof is under a manufacturer warranty, we will help you understand what is covered.
Should I repair or replace my flat roof?
Repair if the leaks are localized and the insulation is dry. Replace or restore if the membrane is failing broadly, the insulation is saturated, or the roof is at the end of its service life. Our inspection includes a moisture survey to answer that objectively.
Related Services
Talk to a roof repair professional today.
Schedule a free consultation and site visit. We will walk the property, listen, and deliver an accurate estimate with a realistic timeline.
- Job completed on time. On budget.
- 100% customer satisfaction guarantee.
- Absolutely 0 surprises at completion.
- Professionally trained technicians.


