Identify the existing membrane
Share installation records or photos if available. Appearance alone may not establish the membrane type, age or compatibility.
Stonewell Construction · Flat roof repair
Find the failed detail.
Review the drainage.
Repair planning for EPDM, TPO and modified-bitumen roof sections, including porches, additions and garages. Identify the membrane and the failed seam, edge or penetration before selecting a repair.
Step by step
A membrane patch needs a compatible system.
Review water movement
Note where standing water appears and how the roof drains. Seams, edges, outlets and wall transitions should be considered together.
Define a compatible repair
The proposal should name the repair material, preparation and how the patch or replaced section connects to the existing membrane.
Separate repair from replacement
Widespread deterioration or wet underlying materials may require a different scope. Ask what the proposed repair addresses and what remains.
Membrane repair planning
Review the system beneath the patch.
EPDM, TPO and modified bitumen are different roofing systems. Their repair products and preparation methods are not interchangeable. The estimate should identify the existing membrane or explain what further investigation is needed before a repair can be specified.
Seams, roof edges and penetrations
Include the affected seam, termination, wall transition, pipe or outlet in the description. Where an addition meets a sloped roof, the connection between the two systems belongs in the scope. A repair should explain how water will move over the finished detail.
Standing water and concealed moisture
Tell Stonewell where water remains and for how long after rain. A membrane patch may address an opening without correcting the roof slope or drainage. Wet insulation or damaged decking can also change the work required; any investigation and replacement allowances should be stated separately.
When replacement needs discussion
Repeated seam failures, extensive deterioration or a substrate that cannot support a sound repair may call for a wider option. Ask for the limits of repair and the proposed replacement scope to be explained independently.
Find your repair
What needs attention on your roof?
Choose the concern closest to yours. These guides explain what a repair should address and what to include in your request.
Water stains or an active leak
When does water appear, and what roof section is above it? Trace the entry point before choosing a repair.
Explore this repair →Leak beside a chimney or wall
Review step flashing, counterflashing and the connection to the surrounding shingles or membrane.
Explore this repair →Missing or damaged shingles
Discuss the affected area, the condition of the remaining roof and the available material match.
Explore this repair →Leaking flat roof or porch
Identify the membrane, seams, roof edges and drainage before specifying a patch or replaced section.
Explore this repair →Before you decide
Questions worth asking.
Can any coating be used on a flat roof?
No. Coatings and repair products must be compatible with the existing membrane and substrate. A coating also does not automatically correct drainage or concealed moisture.
Can you repair only the porch or addition roof?
A defined section may be repairable when its membrane, underlying condition and connections permit it. Identify that section and all tie-ins in the written scope.
Local roofing pages
Find your area.
Roofing service area
North Jersey
Roofing service area
Central Jersey
Roofing service area
Jersey Shore
Request a roofing estimate
Tell us what
your roof needs.
Tell us where the property is and what needs attention. Add a few photos if you have them, and choose a preferred appointment window.
Sending a request does not confirm an appointment. Stonewell will contact you to confirm availability.
Request received.
Your roofing details have been saved for Stonewell to review.
An appointment is confirmed only after Stonewell contacts you.