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Commercial Roofing

From flat-roof offices to large warehouses and retail centers, A.G. Roofing delivers commercial installations and repairs that are on-time, on-budget, and built to last — with minimal disruption to your operations.

Complete Commercial Roofing Services

Whether you're breaking ground on a new building, replacing an aging roof, or dealing with an active leak — A.G. Roofing has the crew, materials, and experience to handle it.

New Construction

Commercial Re-Roofing

Leak Repair & Maintenance

We work directly with general contractors and architects during the build phase to design and install the right roofing system from the ground up — on schedule and within spec.

Aging flat roofs, ponding water, persistent leaks — we assess your existing system and replace it efficiently, keeping your business operational throughout.

Emergency leak response and scheduled preventive maintenance programs to extend the life of your existing roof and protect your inventory, equipment, and people.

Energy-Efficient Roofing

Cool roofs, reflective membranes, and solar-ready flat roof systems that lower HVAC costs and may qualify for California energy rebates and incentives.

Roof Inspections & Reports

Thorough written inspections with photo documentation — for insurance claims, property sales, lease renewals, or annual maintenance planning.

HOA & Multi-Unit

We manage large-scale re-roofing projects for HOAs, apartment complexes, and condo buildings — coordinating with property managers to minimize resident disruption.

Commercial Roofing Materials We Install

TPO Membrane

Thermoplastic polyolefin — the most popular flat roof choice for San Diego commercial properties. Highly reflective, energy-efficient, and weld-seamed for superior leak resistance.

Standing Seam Metal

Ideal for low-slope commercial and industrial buildings. Extremely long-lived, low-maintenance, and fully compatible with solar panel installations.

EPDM Rubber Roofing

A proven single-ply membrane known for durability and flexibility. Excellent for large flat roofs with complex penetrations. Long track record in commercial applications.

Modified Bitumen

A multi-layer asphalt-based system offering excellent waterproofing and UV resistance. A strong choice for buildings requiring added protection in high-traffic roof areas.

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