Air Doctor Heating & Air Conditioning is owned and operated by Scott and Barbara Karr in Boonsboro Maryland.  Air Doctor, LLC was formed in 2013 in order to provide 5-star residential and light commercial HVAC services in all of Frederick County Maryland, Washington County Maryland, as well as parts of Carroll County Maryland, Montgomery County Maryland and Howard County Maryland.  Scott Karr has more than 24 years of total expert HVAC experience and has held his HVAC masters license for more than 10 years.

What sets Air Doctor HVAC Apart?  Quality and integrity in workmanship, coupled with standalone customer benefits including 10-year total equipment warranty (new installations) • 10-year total parts warranty (new installations) 10-year labor workmanship guarantee • 10-year easy financing (for qualified buyers).

Air Doctor HVAC has a 100% satisfaction guarantee and this has sealed strong and trusting long-term relationships with thousands of clients.

HVAC Residential Services:  Our core capabilities start with residential heating and air conditioning services provided by Scott Karr, Master HVAC Licensed technician and installer.  Air Doctor specializes in air conditioning, heating, heat pumps, furnaces, and indoor air quality systems to keep you comfortable all year around.

HVAC Commercial Services:  Our light commercial heating and air conditioning services include rooftop units, mini-splits, unit heaters and through-the-wall heating and cooling systems.

HVAC Repair Services:  At Air Doctor HVAC, we know your heating and air conditioning system may be one of the most important pieces of equipment in your home.  Over the years, parts and components can go bad and need to be repaired or replaced. No matter what the level of HVAC service or installation you need, we have you covered 24/7.

HVAC Emergency Service:  You don’t have to worry in the event that you have a heating or air conditioning emergency.  Air Doctor Heating & Air Conditioning has you covered 24/7 and can respond to your HVAC needs with the same price, any time, any day.

HVAC Preventative Maintenance:  Preventive Maintenance is a critical in keeping your heating and air conditioning HVAC system running at maximum efficiency and performance, while prolong the life of your HVAC system.  Air Doctor Heating & Air Conditioning offers preventative maintenance for all residential and light commercial equipment including all brands.

Investor HVAC Services:  Air Doctor HVAC understands how important it is to have a fully functioning HVAC system in any home that is being rented, sold or flipped.  We specialize in providing personalized services to buyers sellers, and realtors and investors in order to help maximize the bottom line and ROI.

Air Doctor Heating HVAC offers special discounts to military, veterans, employee discounts, senior citizen discounts, group discounts, first responder discounts, seasonal rebates, product rebates and also offers referral cash incentives.

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