Air Conditioning Halehtorpe MD Refrigeration Halethorpe MD $20 Off Service Call!

Baltimore's Top Heating and Cooling Company - Expert HVAC Services

With over 25 years of experience providing expert air conditioner, heating, and refrigeration services, we guarantee you’ll be satisfied with our workmanship.  Our friendly, licensed technicians provide installation, maintenance, and 24/7 emergency repair on all residential and commercial HVAC equipment.  We’re so confident that we offer the lowest prices available that we guarantee to beat any written estimate from a local competitor.

AJR Proudly Serves Baltimore Maryland and Surrounding Areas Offering 24 Hour Emergency Services

Don’t wait until your old equipment breaks down! Take advantage of our preventative maintenance plans or our free estimate and 10-year labor warranty included on all total system replacements. Our unmatched customer service is available live 24 hours a day. Don’t postpone your comfort, call us today.  We’ll be happy to assist you with a suitable financing plan.

Our Services


Why Choose AJR

  • Serving Residential & Commercial
  • Over 25 Years of Industry Experience
  • Full-Service Duct Cleaning
  • 24 Hour Service & Live Phone Operator
  • Free Estimates
  • Licensed & Insured





Financing Options

Concerned about your credit? Don't be. Our staff will be happy to assist you. We currently work with Wells Fargo, GE Capital, and several other financing companies. Click here to learn more!


Latest Blog Posts

Why Is an Air Filter an Essential Component of a Furnace?
As a homeowner, whether you have extensive knowledge of the inner workings of your HVAC system or you’re a novice, you undoubtedly know that you’re supposed to change your furnace’s air filter on a regular basis. Most...
How Does an HVAC Technician Perform a Furnace Tune-Up?
Let’s face it, furnaces aren’t cheap. For that reason, it is extremely important to have a heating and cooling technician perform an annual furnace tune-up. Sometimes homeowners are reluctant to have their furnace inspected and tuned...
When Is the Best Time to Schedule Regular Furnace Maintenance?
Unless your home is heated by a wood burning stove, or an electric heat source, the furnace is responsible for keeping you comfortable during the coldest months of the year. It also protects the contents in your home and prevents your pipes from...
How Often Does My Air Conditioner Need Maintenance?
Air conditioners are not unlike other major investments in your home. The better you care for your air conditioner, the better the air conditioner will take care of you. Homeowners frequently wonder how often their air conditioners should be...
How Long Should an Air Conditioning Condenser Last?
When most people think of an air conditioning unit, they imagine it as one solid piece of equipment, but actually, an AC system is comprised of several different components that work together to convert warm air to cool air and blow it...
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A.J.R. Heating, Air-Conditioning, & Refrigeration, Inc., Heating & Air Conditioning, Brooklyn Park, MD

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Angie's List 2013 Super Service Award - Check out our reviews!