Northern Continental Heating & Cooling, Inc.

Northern Continental Heating & Cooling, Inc. has operated continuously in Crystal Lake since 1980, making it one of the longest-serving HVAC contractors in McHenry County. The company holds an A+ rating from the Better Business Bureau and maintains a 4.8-star average across 130 customer reviews, a volume that reflects four decades of steady word-of-mouth growth. Northern Continental serves Crystal Lake and surrounding communities throughout McHenry County, providing heating system repair, cooling maintenance, and new equipment installation for both residential and light commercial clients.

A distinguishing strength lies in the company's expertise with modern tankless water heating systems, particularly Navien combi boilers that deliver on-demand hot water while maximizing efficiency. This specialization sets them apart from contractors offering only traditional storage-tank water heaters. The team handles boiler repair, furnace installation, and complete air conditioning coil replacements, including challenging placements in crawlspaces that require extra coordination. Several reviewers note the company provides same-day service for urgent calls, a capability that proves critical during summer heat waves or winter cold snaps when indoor comfort systems fail unexpectedly.

Customer feedback highlights specific technicians who earned repeat business. Reviewer Michelle G. mentions David and his crew completing a Navien tankless boiler installation with a generous warranty. Technician Jacob impressed Laurie R. by explaining every component during her AC repair, showing her the faulty part and describing its function. Judy A. notes the crew arrived the same day when her hot water heater failed during frigid weather, a promptness she values as a solo homeowner. Kelly M.'s review describes a complex crawlspace furnace and AC coil replacement where the crew proactively identified and addressed additional safety hazards.