Thompson Heating and Cooling

Thompson Heating and Cooling has built a presence in Island Lake, Illinois serving residents across the northern collar counties. The company holds a 4.6 rating from 17 customer reviews, reflecting predominantly positive experiences with both routine maintenance calls and full system replacements. Homeowners in nearby communities including Mundelein and Lake Villa have shared feedback through public reviews, establishing the company's reach beyond Island Lake proper.

The company distinguishes itself through round-the-clock availability, a rare trait among independent HVAC contractors in Lake County. Several reviewers mention working directly with Paul, who handles estimates and explains system options with patience, a practice that reduces homeowner uncertainty during major equipment decisions. Technicians John, Chris, and George completed a full system installation in under a day despite rain and heat, suggesting organized dispatch and clear scope definition before work begins.

Two customer scenarios stand out from recent reviews. Juan Tucker described a seamless replacement of an AC, furnace, humidifier and air filter, with Paul handling all paperwork including a rebate filing, removing that administrative burden from the homeowner. In contrast, Michelle Degrassi's account details persistent follow-up failures after a furnace installation, where promised warranty work never materialized despite multiple phone calls and text exchanges.