Customer Testimonials

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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.

Michael McGovern
Michael McGovern
04:17 27 Jul 21
From start to finish everything was done well. We had to have an old AC replaced and the overall job looks great.
Mike Taylor
Mike Taylor
20:09 17 Jul 21
Jeffrey Prophet
Jeffrey Prophet
16:39 15 Jul 21
Neil P
Neil P
03:25 13 Jul 21
Jamie Delgado
Jamie Delgado
01:42 16 Jun 21
Paul Werner
Paul Werner
17:31 15 Jun 21
ESA was timely and responsive. I wouldn't call any one else.
Kristi Birch
Kristi Birch
14:25 25 May 21
Gino Molfino
Gino Molfino
12:11 15 May 21
My entire family has relied on Environmental Systems Associates for over 20 years. I consistently appreciate their responsiveness, providing honest advice and multiple options to remedy issues. The quality of the technicians and efficiency of the work they complete has always been top notch in all experiences.
Phillip Watters
Phillip Watters
00:47 14 May 21
Technicians were professional, clean, and informative.
Christopher Castellano
Christopher Castellano
10:21 07 May 21
Larry B
Larry B
03:14 14 Apr 21
peter michos
peter michos
12:19 23 Mar 21
John Hartge
John Hartge
15:18 19 Mar 21
ESA installed 2 heat pump systems with extensive ductwork (21 supply and return vents) and 1 ductless system with two mini-splits in our 165 year-old family farm house. Their large installation crew completed the work in 4+ days. Previously, two other local, well-known HVAC companies had come to our house to give us a proposal. The first said that this would be the most challenging system they’d ever designed; after 4 weeks, they were still working on the proposal. At that point, I called the next company and when they walked through our house, they told us upfront that the job was too big for them. Fortunately, they recommended ESA. As Bob Galla (ESA) walked through our house, he clearly understood the challenges with designing and installing ductwork and HVAC into this old house. He drew on his knowledge as an energy auditor, expertise on the Carrier and Aprilaire systems, and many years experience in designing systems for old farm houses. ESA sent me a proposal within just a few days and the price was right on target with my budget. Ryan was the overall supervisor. He and Rick led the work that was done throughout the house. They and everyone on the crew were great to work with. All of the work was carefully done and thorough, even at the smallest details. Ryan and Rick welcomed my involvement and were very responsive to my many questions. We had scheduled the install so my wife and I had two weeks to prepare the basement and attic for the work to be done. It was a lot of heavy and dusty work to clear the space for the systems and ductwork, but absolutely necessary to be done before the installation began. At the end of each work day, the ESA crew of up to a dozen workers cleaned and straightened up the job site. Bob and the crews went above and beyond to fit the HVAC systems and ducts so they took up minimal space in our attic and basement. After the install was completed, the new systems were practically invisible within our living areas - the only evidence of the new HVAC were the vents and two thermostats to control the downstairs zone and the upstairs zone. The work was completed about 3 weeks ago and everything is working beautifully. ESA has followed up several times to check on the systems and our satisfaction. The bottom line is that ESA did fantastic work! In retrospect, I don’t think there anything special about how they designed and installed the systems in our house - it is simply the way that the company conducts their business. I don’t give praise lightly, ESA earned their five stars from me in every category.
Vickie Henderson-Zegar
Vickie Henderson-Zegar
15:28 13 Mar 21
Richard Dean took great care to evaluate my heating and cooling system in the summer of 2020, gave me an outline of the various options to replace my heating & cooling system, did not pressure me to make an immediate decision, and this week - seven months later, his team of professional installers spent the day installing my new equipment. The installers were on time, professional, knowledgeable, and respectful of protecting my flooring. I've signed up for continuing coverage on both my existing and newly installed heating and cooling zones. It's nice to know I'm working with a reliable company. Thank you ESA!
Chris Zang
Chris Zang
02:53 13 Mar 21

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.