Flat and low-slope roofs fail differently than pitched shingle roofs — ponding water, seam separation, and membrane punctures need specialized diagnosis.


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 Fontana commercial property.
We coordinate Fontana scheduling around your business hours whenever the situation allows.
Membrane type and repair scope are itemized separately in every Flat Roof Repair estimate.
Hot-air welding equipment ensures a proper bond on every TPO Flat Roof Repair repair.
Flat roof issues cover a specific range of membrane and drainage problems — here's our Flat Roof Repair scope.
We test repaired seams for a proper bond before considering the Flat Roof Repair job complete.
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.
We assess whether a modified bitumen repair needs a patch or a full section replacement.
We clear and repair drains and scuppers as part of a full Flat Roof Repair visit.
Rooftop HVAC units and their curbs are a frequent source of Fontana commercial roof leaks that general roofers often overlook.

Call +1-844-212-9199 to schedule an assessment — dispatch connects you with a Flat Roof Repair specialist.
A technician inspects the membrane system, checking seams, drains, and any ponding areas.
You receive a written estimate covering membrane repair or drainage correction before work begins.
Repairs are completed using membrane-appropriate technique, then tested before we consider the job done.

They tested the seam repair with water before considering the job done.
— Fontana Homeowner
Scheduled the work around our business hours so it barely disrupted operations.
— Fontana Homeowner
EPDM patch job from another company had failed within a year. Theirs has held up fine since.
— Fontana Homeowner
They caught a second smaller leak while fixing the one we'd actually called about.
— Fontana Homeowner

We serve both commercial properties and residential flat-roof additions throughout Fontana and Fontana, CA.
