Roof Repair Smedway's Flat Roof Repair crews are trained on TPO, EPDM, and modified bitumen systems across Derwood, not general shingle work applied to a flat surface.


A flat roof leak rarely shows up directly above where the water actually entered — membrane systems move water laterally before it drips through.
We also test repaired seams for a proper bond before leaving, rather than assuming a visual check is enough.
Insurance documentation available before work begins on any Derwood commercial property.
Local Derwood dispatch minimizes business disruption with scheduling around your operating hours.
No surprise costs once we're already on the roof mid-repair.
Hot-air welders and seam probes come standard for TPO and EPDM Flat Roof Repair work.
Most Derwood flat roof issues combine two or three of these elements, which is why a full inspection matters.
TPO seam separation gets properly heat-welded, not just caulked over as a temporary fix.
EPDM punctures and seam failures are patched with compatible materials, not a mismatched quick fix.
Standing water that doesn't drain within 48 hours accelerates membrane breakdown and needs a drainage fix, not just a patch.
Modified bitumen blisters and seam issues are repaired using proper torch-down or cold-adhesive technique depending on the situation.
Clogged or damaged drains are a leading cause of Derwood flat roof ponding and membrane stress.
Rooftop HVAC units and their curbs are a frequent source of Derwood commercial roof leaks that general roofers often overlook.

We start by discussing the issue — ponding, active leak, or visible membrane damage.
A technician inspects the membrane system, checking seams, drains, and any ponding areas.
Drainage and ponding issues are assessed alongside any visible membrane damage.
A completed Flat Roof Repair includes a walkthrough of what was repaired and why.

Ponding water on our building had been an issue for years until they actually fixed the drainage instead of just patching around it.
— Derwood Homeowner
Scheduled around our tenants' business hours without us even having to ask.
— Derwood Homeowner
EPDM patch job from another company had failed within a year. Theirs has held up fine since.
— Derwood Homeowner
They found a second smaller leak we didn't know about while fixing the one we called about.
— Derwood Homeowner

Our low-slope crews serve Derwood businesses and properties across Derwood, MD.
