Quartner’s

Quartner's Heating & Air Conditioning has kept Baltimore residents comfortable since the early 1970s, making it one of the region's most established family-owned HVAC companies. Holder of Master HVAC license #01 2956 and Master Gasfitter credentials, the company maintains an A rating with the Better Business Bureau and has earned 4.6 stars across 22 verified customer reviews.Operating around the clock seven days a week, Quartner's serves residential and commercial clients throughout Baltimore County and Baltimore City, handling everything from emergency repairs to new construction installations.

What distinguishes Quartner's is their expertise with specialized ducting solutions that most area contractors cannot offer. The company is an authorized Unico Mini Duct installer, using proprietary flexible ductwork that measures just 2 inches in diameter and threads through existing construction without major renovations. Their Mitsubishi ductless systems provide zoned cooling and heating for apartments, home additions, and older homes with limited existing ductwork, and they also service commercial rooftop units. Every installation includes a free written estimate, and the team stands behind their workmanship.

Customers consistently praise Mike Quartner and his technicians for going beyond standard service calls. When one Baltimore County homeowner lost heat during a February snowstorm, Mike secured a replacement furnace and completed installation within 48 hours, providing space heaters while the new system was ordered. Another customer's AC failed on a Sunday morning; the team arrived by 9:30 the following day and had the unit repaired in under 30 minutes. Elizabeth Chessler's review notes the crew was "fast, friendly service" that resolved her cooling emergency in just one day.