Heating Cooling and Maintenance

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The Doctor is in!

Scott Karr has over 23 years of experience in the HVAC world. Born and raised in the area, his family owned business would like a chance to earn your family's business. Whether you need your Air Conditioning fixed from a last minute break down or your furnace repaired in the middle of a snow storm, The Doctor is in!

Emergency Service

Air Doctor LLC is on standby waiting for your call. We offer exclusive 24/7 emergency support for the stickiest of situations. Whether it's 2° in February or 96° in July, Air Doctor LLC is there for you.

How it works

Though your heating and cooling system seems close to its final hours, you don’t have to let it go prematurely. Simply call Air Doctor LLC - Heating & Air Conditioning Specialists and ask about our cooling and heating services. Our professionals can come to your home in Frederick, MD; Washington County; or the surrounding areas and quickly diagnose and repair the problem.

Realtors, Investors and property Flippers!

We have an AMAZING price point for replacing units to build value in your properties!  See our recent Doctors Notes about our Real Estate Premium pricing.



Since 2013

Why Choose Air Doctor LLC?

We are local and Family Owned

Air Doctor LLC is a family owned and operated company based in Boonsboro, MD with over 23 years of hands-on experience. Air Doctor LLC is an authorized dealer for American Standard, the owners of Trane, one of the Nations top manufacturers.

Superior Service and Testimonials

We believe in offering our clients and customers the highest level of customer satisfaction possible. It's how we've built our business up to this point. We understand the value of word-of-mouth advertising and referrals, which is what has made us a prestigious 3-year winner of Angie's List Super Service Award both in 2014, 2015 & 2016.

Customer Satisfaction 

When you do business with Air Doctor LLC, you can rest assured that you will leave a satisfied customer. We work around the clock to ensure that you are taken care of. If for any reason whatsoever during your servicing process you are unsatisfied, we will go out of our way to ensure your situation gets handled in a speedy time frame. Visit our Testimonials page to learn more!

Next Steps...

To learn more about our services, or just ask us a question, feel free to email or call us anytime! We offer 24 hour Emergency Air Conditioning or Furnace services.