Rooftop Drain Repair Done Right - Bolts Out, Leaks Gone

A clogged or failing rooftop drain is one of those problems that gets ignored until water starts showing up where it definitely shouldn't. Standing water on a flat roof isn't just an inconvenience - it puts serious weight and pressure on the membrane, speeds up deterioration, and eventually finds its way inside. We see this more than you'd think across Kansas City.

Here's what we were working with on this one: a drain that was packed with debris, corroded around the ring, and no longer sealing properly. The old hardware was shot. Before anything else could be fixed, we had to drill out the old bolts and clear everything down to a clean, workable surface. It's not glamorous work, but skipping that step is exactly how you end up back on the same roof six months later.

Once the drain was cleared out, we applied sealant around the full perimeter of the drain flange and set new bolts. That continuous bead of sealant around the ring is what actually keeps water from sneaking under the flange and into the roof assembly below. Getting that detail right matters a lot more than most people realize.

What you end up with after all of that is a drain that actually functions - water flows through it instead of pooling around it, and the connection between the drain body and the roof membrane is tight and secure. No shortcuts, no patch-over-patch fixes. Just a clean repair done the right way.

Flat roof drain issues don't fix themselves. If you've got water sitting on your roof or you've noticed staining on interior ceilings, it's worth having someone take a look before it turns into a much bigger expense. We handle this kind of work all the time for property owners in the Kansas City area.