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


We carry compatible repair materials for multiple membrane brands, since mismatched patch material is a common cause of repeat flat roof failures.
Commercial Flat Roof Repair scheduling is built around minimizing disruption to your San Anselmo business operations.
Insurance documentation available before work begins on any San Anselmo commercial property.
Local San Anselmo dispatch minimizes business disruption with scheduling around your operating hours.
Written Flat Roof Repair estimates cover membrane type, repair scope, and labor upfront.
Hot-air welders and seam probes come standard for TPO and EPDM Flat Roof Repair work.
Here's what falls under our San Anselmo Flat Roof Repair service for commercial and low-slope roofs.
TPO seam separation gets properly heat-welded, not just caulked over as a temporary fix.
We identify the membrane type first, since EPDM and TPO repairs use different adhesive systems.
We identify why water is pooling — often a low spot or blocked drain — before recommending a solution.
Modified bitumen blisters and seam issues are repaired using proper torch-down or cold-adhesive technique depending on the situation.
We clear and repair drains and scuppers as part of a full Flat Roof Repair visit.
We reseal and reflash equipment curbs as part of a thorough Flat Roof Repair inspection.

We start by discussing the issue — ponding, active leak, or visible membrane damage.
Technicians identify your membrane type before recommending any Flat Roof Repair repair method.
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.

TPO seam repair was clean, tested it before leaving to make sure it actually held.
— San Anselmo Homeowner
Scheduled around our tenants' business hours without us even having to ask.
— San Anselmo Homeowner
EPDM patch job from another company had failed within a year. Theirs has held up fine since.
— San Anselmo Homeowner
They caught a second smaller leak while fixing the one we'd actually called about.
— San Anselmo Homeowner

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