Grease Around Exhaust Fans
Kitchen exhaust leaves grease that softens many membranes and clogs the drains nearby. Cleanup and a compatible membrane patch around the fan stop the softening from spreading.


As a Wilson commercial roof repair contractor, we repair curbs, flashing, and membrane around exhaust fans and rooftop units on storefronts and restaurants.

Wilson commercial roof repair calls often start with a stain or drip directly below an exhaust fan, a kitchen hood, or a rooftop unit.
Exhaust fans and rooftop units shake, drip condensate, and discharge grease or moisture onto the roof around them. Each of those wears the curb flashing and softens nearby membrane.
Wilson sits right next to Easton, so we can line up the roof visit with your equipment service company and fix the roof and the unit fault together.
These conditions show up most on Wilson storefront and restaurant roofs.
Kitchen exhaust leaves grease that softens many membranes and clogs the drains nearby. Cleanup and a compatible membrane patch around the fan stop the softening from spreading.
Unit curbs move with vibration and temperature, cracking the flashing where it turns the corner. Rebuilt corners with new counterflashing hold up better under that movement.
Condensate lines that spill on the roof keep one spot wet and wear the surface. Piping the line to a drain ends the constant wet spot on the membrane.
Technicians walking to units scuff and puncture the membrane along the same path. A walkway pad along that path protects the membrane from the next service visit.
Storefront rows share parapets and flashing, so one leak can show in the neighbor space. Checking the shared wall flashing finds which side of the line the water entered.
Old vents and gas lines left from past tenants leave openings with tired flashing. Removing unused penetrations and patching the deck closes those openings for good.
Fixing the roof and the equipment fault together keeps the repair from being undone.
Checking discharge, vibration, and condensate at the same visit keeps a new curb flashing from being contaminated or shaken loose by the fault next to it.
Work is timed so the dining room or sales floor stays open below.
Clearing grease and debris lets water reach the drains instead of pooling at curbs.
Photos of the curb and unit help sort roof work from equipment work in a lease.
Each repair service applies to Wilson storefronts and small commercial buildings.

Storefront and restaurant roofs in Wilson with membrane worn around units and drains.

Metal-roofed garages and service buildings in Wilson with loose screws around vent pipes.

Drips in Wilson shops that show only when a fan or unit runs, traced before anything is replaced.

Small food and processing buildings in Wilson with exhaust stacks and heavy units on top.
Call us with which fan or unit sits over the leak and whether it drips only when the equipment runs.
Equipment-related leaks are traced on the roof and inside the space.
We ask whether the leak tracks rain or equipment use, and which unit sits above it.
Curb flashing, nearby membrane, fan discharge, and condensate lines are checked together.
Where a unit fault shows up, we line up its repair with the roof work.
The curb and membrane are repaired and walkway protection added where technicians walk.
Not in Wilson? Call us or send us a message. We also repair roofs in Easton and the towns below.
Warehouse and distribution roofs where stains rarely sit under the opening.
Morrisville repairsMetal shop and storage roofs with seams that keep reopening.
East Stroudsburg repairsOlder flat roofs whose drain leaks may start in the piping.
Clifton Heights repairsPlant and warehouse roofs with leaks that came back after repairs.
Folcroft repairsStraight-line distances, rounded, from town-center coordinates.
Answers for Wilson storefront and restaurant owners.
Yes, when vibration, discharge, or a water source in the unit could be involved. We inspect the curb flashing and the roofing around it along with the fan. Coordinating with the equipment side keeps a fault left in place from disturbing or contaminating the new roof repair.
Grease cleanup around the exhaust, repairs to softened membrane, curb flashing work, and clearing drains. We also look at whether the exhaust setup needs a grease containment fix so the roof stays clean afterward.
The old flashing at the curb is removed back to sound material, the corners rebuilt, and new base and counterflashing installed. If the curb itself has moved or rotted, it is repaired first.
Most of the time. Roof work above the space continues while the store runs below, with noisy or dusty steps timed for slower hours. Any interior protection is agreed with you ahead of time.
Wilson is about a mile from central Easton, so it is one of the easiest towns for us to reach. Call with the address and what the roof is doing, and we will set an inspection time with you.
If the water comes from the fan housing, condensate line, or a duct joint, the equipment company fixes that part and we repair any roofing it damaged. We note which is which in our findings, so the work and the bill go to the right trade under your lease or service contract.
Tell us which unit or fan sits over the leak. We will inspect the roof and the equipment area and price the repair.