O'Brien Heating & Cooling

O'Brien Heating & Cooling serves the Waukegan community with a 4.4-star rating drawn from 13 homeowner reviews. This family-owned heating contractor handles furnace and air conditioning installations, boiler repairs, and humidifier diagnostics for residential customers throughout the city and surrounding Lake County neighborhoods. Reviewers describe the team as knowledgeable, professional, and committed to completing quality work within a single day for full system replacements.

The contractor differentiates itself through transparent pricing and responsive service. Multiple reviewers note the team provided fair estimates without taking advantage of homeowners facing urgent heating failures. A reviewer praised the affordability of a boiler repair that had been costing the homeowner money since purchasing the property, while another highlighted quick turnaround on a noisy heating system without unnecessary delays.

Customers share specific encounters with O'Brien technicians. One reviewer describes Gary diagnosing a leaking pipe beneath the flooring during a boiler inspection, then returning on schedule to reroute the water line and service the entire system. Another mentions Joey handling a humidifier issue for a newly purchased home with honesty and courtesy. A third reviewer recounts the team accommodating a same-day look at her boiler within an hour of the initial call, arriving quickly when a technician finished earlier than expected.