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Customer Testimonials

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Air Conditioner Repair in Elkridge, MD 21075

“JJ came out today when the system said it was malfunctioning and to call ESA. JJ was here within the hour from when I placed the call. He was professional, friendly, efficient, and very knowledgeable. He answered all of my questions and ensured that I had an adequate understanding of everything going on. JJ truly embodies the characteristics of a phenomenal provider of service in this industry.”

– Cheri T.

Air Conditioner Maintenance in Ellicott City, MD 21042

“I have been using Environmental Systems Associates for over 10 years and it has always been with excellent results. Recently, I added a Gas Furnace to my house and went through ESA to handle all the aspects. Top notch professions that really know the systems. I also have relied on them for yearly maintenance and repairs. Always on time, always knowledgeable and professional. I believe they always go above and beyond by providing advice, tips on getting the best out of your HVAC systems. They are the absolute best!”

– Mary Ann E.

Gas Furnace Installation in Columbia, MD 21044

“Love our new gas heater and air conditioning system. The installation crew was professional, efficient, and went beyond requirements to complete an excellent job. We are extremely pleased.”

– Barbara D.

Maintenance in Columbia, MD 21046

“Great work, very knowledgeable. I would prefer Ivan on all my service calls and also prefer first AM appointment.”

– Robert T.

Gas Furnace Maintenance in Ellicott City, MD 21042

“They came on time, provide maintenance for the gas furnace and air conditioner. They did a great job.”

– John L.

Gas Furnace Repair in Columbia, MD 21044

“I have been a customer of Environmental Systems since 1976. I would like to recognize Maureen(office contact) and Scott (our tech) for an outstanding job recently done for us – last week before the snow began we had no heat-Scott had someone troubleshoot our Carrier model and came to our home twice to make sure the proper repair was done before the storm. As a seasoned (older) realtor I have provided Environmental's name to many clients thru the years they provide outstanding service in a very professional manner.”

– Elaine K.

Air Conditioner Installation in Elkridge, MD 21075

“I can highly recommend ESA. Installation of a new AC and Furnace was scheduled within one week after placing the order. The space for the furnace was very, very tight but Ryan L. and his team fit in the new one just fine. (The original furnace was put in when the house was built before they put up the walls…). They showed up on time, cleaned up after they left, they handle the warranty registration, permit, inspection, rebate submission etc. Very Happy with their service.”

– Ferdinand M.

Gas Furnace Maintenance in Columbia, MD 21044

“Steve of Environmental Systems Associates provided our semi-annual AC/H checkup. He showed up exactly on time (and brought in my newspaper with him). He was extremely friendly and helpful, taking the time to fully explain a number of setting options on our automated thermostat relating to humidity settings in the heating mode vs the cooling mode. His inspection and maintenance of our systems left me confident that they are in good shape and will get us through the winter. He also gave me his card and offered to personally answer any additional questions that come up. I award Steve "5 Stars" for friendliness, helpfulness and thoroughness. He is recommended without reservation. Thanks again Steve and hope to see you next inspection.”

– Jeffrey O.

Heat Pump Maintenance in Columbia, MD 21044

“Your service technician, Ivan G, just left my house after providing the semi annual maintenance service to my 3 heat pump units. I would like to commend him for his efficiency, as well as his outstanding professional manner. He seemed very knowledgeable in responding to any questions I posed and performed his tasks with diligence. He was very polite and also tidy. I would like to request that he be the dedicated service person to return to our home for all contracted maintenance services. Thank you so much.”

– Helen M.

Air Conditioner Repair in Ellicott City, MD 21043

“Great service and fair pricing, I will be using environmental system for all my future ac and heating repairs. Came out same day my ac failed and repaired on the spot. I even got an invoice with pictures of what had caused the issue.”

– Andrew K.

Need HVAC Service?

Call the experts at Environmental Systems Associates.

Call us at 410-381-7991


Environmental Systems Associates proudly provides HVAC service to Howard County. Visit our service area page for more coverage details, call us at 410-381-7991, or request service online today.