London Heating & Cooling

London Heating & Cooling has earned a 4.9-star rating across 225 verified reviews. Founded and operated by Mark London, this family-owned contractor brings 25 to 30 years of hands-on industry experience to homeowners throughout Lockport, Joliet, New Lenox, Romeoville, and surrounding Will County communities. The company maintains weekday service hours from 6:30 AM to 7 PM and Saturday hours until 5 PM, allowing flexibility for residents managing busy schedules and unexpected breakdowns.

What distinguishes this contractor involves several tangible advantages. The company specializes in energy-efficient HVAC solutions that can reduce monthly utility costs while improving indoor air quality. Their custom sheet metal and ductwork fabrication enables precise installations tailored to older homes that may present clearance or airflow challenges, a capability many larger companies lack. Multiple reviewers specifically mention Mark's willingness to explain what work is genuinely needed versus what can wait, avoiding unnecessary expenses.

Customer stories extracted from recent reviews reveal the technician's commitment to safety and transparency. Tommy D. described how Mark arrived within 90 minutes during a bitter cold snap, discovered a corroded flue pipe leaking lethal carbon monoxide into the home, and completed the replacement in under an hour. Jonathan G. noted the final invoice matched the quoted price exactly, no unexpected line items appeared. Amber K. mentioned receiving a same-day appointment and having both her AC repair and furnace cleaning completed within a single visit. These scenarios illustrate why dozens of reviewers recommend Mark London without reservation.