G&O Thermal Supply

GandO Thermal Supply operates as a heating and cooling distribution service in Chicago, serving contractors and serious DIY homeowners across the city's north side and western suburbs including Evanston, Skokie, Oak Park, and Cicero. With a 4.7-star average drawn from 12 customer reviews, this supplier has cultivated a reputation for keeping hard-to-find HVAC components in stock when other distributors come up empty-handed. The facility maintains weekday hours from 6 AM to 4:30 PM, providing pick-up and will-call service for professionals who cannot wait for next-day delivery from national chains.

What distinguishes GandO Thermal Supply from standard HVAC wholesalers is its depth in specialty thermal components. Reviewers specifically reference thermosystem parts that smaller supply houses simply do not carry, noting the business functions as a one-stop resource for tradespeople tackling complex retrofits or custom installations. The counter team, particularly a staff member named Rick whom multiple reviewers spotlight, demonstrates technical fluency that helps contractors diagnose compatibility issues before they purchase mismatched equipment. This hands-on knowledge base transforms the location from a simple parts warehouse into a consulting resource for installers working outside their usual scope.

Two customer scenarios underscore the team's responsiveness. During an August heat wave, a reviewer reports calling in the morning and picking up a failing compressor capacitor by midday, avoiding a costly no-AC night. Another customer describes walking in with a non-functioning zone valve other suppliers could not identify, leaving with both the correct replacement part and installation guidance from Terry, characterized as super friendly. These interactions illustrate how the staff balances product availability with practical troubleshooting advice.