Get the right parts. Keep the job moving.
ESG helps contractors, maintenance teams, builders, and do-it-yourself customers find dependable electrical and HVAC supplies without the runaround.
Supplies that make the next step easier.
From everyday jobsite essentials to the specialty parts that can stop a project, ESG is building a supply house around how the work actually gets done.
Wire & cable
THHN, XHHW, PV wire, terminals, and more.
Conduit & fittings
EMT, PVC, liquidtight, GRC, and connections.
Controls & breakers
Distribution, automation, fuses, and control gear.
Tools & safety
Test equipment, hand tools, labeling, and PPE.
HVAC parts
Service and install essentials for heating and cooling work.
Lighting
Fixtures, lamps, controls, and accessories.
Solar & storage
PV equipment, inverters, racking, and balance of system.
Hardware & fastening
Strut, screws, sealing, marking, and connecting materials.
Electrical supply and HVAC supply, under one roof.
Bring the full job list. We’ll help you source the parts that keep electrical, heating, and cooling work moving.
Explore HVAC supply ↗Need something specific?
Tell us what you’re looking for. ESG can custom order and stock parts for the work you do most.
Your local supply house for the parts behind the work.
Electrical Supply Group serves Southern Illinois from Harrisburg, with a growing catalog for commercial, industrial, HVAC, solar, and everyday electrical work.
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