Commercial Roofing
TPO, EPDM, built-up, and metal roofing systems — new installations, replacements, repairs, and preventive maintenance programs.
Commercial roofing demands different materials and engineering than residential. Our roofing division specializes in flat and low-slope systems designed to protect merchandise, equipment, and tenants while meeting California's Title 24 energy codes.
Ceiling Stains
Dark spots or sagging drywall mean water has already bypassed your roof deck.
Gravel in Gutters
Loss of granules on shingles indicates the protective top layer has reached its end of life.
Missing Shingles
Wind damage leaves your underlayment vulnerable to UV rot and moisture.
Sagging Roof Lines
A structural warning sign that your roof trusses are failing under moisture weight.
TPO Single-Ply
Heat-welded thermoplastic polyolefin membranes — the standard for new commercial flat roofs.
EPDM Rubber
Synthetic rubber roofing for long-lasting, low-maintenance commercial applications.
Built-Up Roofing (BUR)
Multi-layer asphalt and gravel systems for heavy-duty commercial use.
Metal Roofing
Standing seam, corrugated, and architectural metal for commercial and industrial buildings.
High-Performance Commercial Roofing
Southern California commercial real estate relies heavily on sprawling, flat-roofed structures. While these expansive rooftops rarely see snow, they are entirely exposed to the brutal, relentless UV radiation of the desert sun and the sudden, heavy downpours of winter storms. A compromised commercial roof doesn't just leak water; it destroys valuable inventory below, short-circuits vital electrical grids, and can force an immediate halt to your business operations. We install impenetrable, high-performance commercial roofing systems designed to secure your heavy assets.
TPO and PVC Single-Ply Membranes
For warehouses, massive retail centers, and industrial facilities, single-ply membranes are the absolute gold standard. Thermoplastic Polyolefin (TPO) and Polyvinyl Chloride (PVC) roofs provide a vastly superior combination of rugged waterproofing and aggressive solar reflection.
We specialize in mechanically attached and fully adhered TPO installations. Unlike older tar-and-gravel roofs that bake in the sun, bright white TPO acts as a massive thermal mirror, violently reflecting solar heat back into the atmosphere. This "cool roof" technology significantly decreases the ambient temperature of your roof deck, directly slashing your commercial air conditioning costs during peak summer months and massively contributing toward Title 24 compliance.
Torch-Down and Modified Bitumen
For roofs subjected to heavy foot traffic—such as those housing massive clusters of HVAC rooftop units (RTUs) or cellular communication arrays—single-ply membranes can sometimes be too fragile. In these high-traffic environments, we install heavy-duty Modified Bitumen (torch-down) systems.
These multi-layer asphaltic systems are incredibly thick and resilient, offering superior puncture resistance. Our crews are fiercely trained in open-flame safety protocols, ensuring these robust roofs are melted and sealed flawlessly around complex parapet walls, heavy HVAC curbs, and intricate roof penetrations.
Silicone Restoration Coatings
If your existing commercial roof is aging but the underlying insulation structure is still dry and structurally sound, a complete tear-off may not be necessary. We apply highly advanced, liquid-applied silicone roof coatings.
This process involves aggressively power-washing the existing roof, repairing specific blisters or localized damage, and seamlessly spraying a monolithic layer of high-solids silicone over the entire surface. This essentially creates a watertight, rubberized pool liner over your building for a fraction of the cost of a full physical replacement, while still offering robust 10-to-20-year warranties.
General Contracting Synergy
Because commercial roofs serve as the structural platform for massive HVAC units and mechanical exhaust fans, roof replacements are rarely isolated events. As a comprehensive commercial general contractor, we fluidly coordinate the required disconnects and craning of your RTUs during the roofing process.
Stop gambling with your facility's waterproofing envelope. Secure your building today. Call our commercial roofing division at (760) 391-2458 to schedule an aerial drone inspection and core-sample evaluation.
Mission-Critical Process
How we deliver military-grade results with zero-point failure.
Drone Infrastructure Scan
Using 4K drones to map every square inch of your roof for heat leaks and structural fatigue.
Deck Hardening
Replacing rotted plywood and adding high-temp ice/water shielding before the top layer.
Precision Installation
Veteran teams applying 50-year warranted materials with absolute alignment.
Edge-to-Edge Seal
Ensuring flashing, drip edges, and vents are triple-sealed against wind and rain.
Frequently Asked Questions
We specialize in single-ply membranes (TPO, PVC, EPDM), modified bitumen, built-up roofing (BUR), and commercial metal roofing systems.
TPO is highly reflective, energy-efficient, incredibly durable against UV degradation, and seamlessly heat-welded to prevent any water intrusion.
Yes. We pinpoint elusive leaks and perform permanent structural patches on flat roofs, parapet walls, and failing flashing around HVAC units.
Absolutely. A high-solids silicone roof coating can restore an aging flat roof, stopping leaks immediately and extending its lifespan by 10-15 years.
We engineer tapered insulation systems to create positive slopes on flat roofs, ensuring water directs properly to scuppers, gutters, and internal drains.
Yes. Because we are a general contractor, we perfectly synchronize the delivery of heavy rooftop HVAC units with the flashing and sealing of the roof.
We provide comprehensive NDL (No Dollar Limit) manufacturer warranties extending up to 20 or 30 years, alongside our own robust workmanship guarantee.
Yes, we offer rapid commercial storm response, safely tarping massive warehouse exposures and executing fast-track restoration repairs.
Yes, our roofing division holds certifications from top commercial materials manufacturers, ensuring our installations qualify for elite warranties.
Yes. We install heavy-duty, code-compliant commercial skylights and UL-listed smoke vents to improve lighting and safety in vast industrial spaces.
Schedule a Commercial Roof Inspection
Veteran-owned. Fully licensed and insured. One call gets every trade on your project.
Service Areas
Peck General Construction provides professional commercial roofing services throughout Southern California. We proudly serve communities across Orange County, Riverside County, San Bernardino County, and Los Angeles County.






