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We continue to strive to exceed your expectations in providing whole-house solutions to your heating and cooling problems. Our policy is to offer honest products with valuable information and education to help you, our customer, make the best decisions regarding your home comfort solutions. Our commitment to quality and integrity has allowed us 35 years of success and we will continue to be your heating and cooling experts for years to come! On average, people spend 90 percent of their time indoors but don't know that indoor air can be two to five times more polluted than outside air.
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In 1972, Mike Hendricks, Sr. started to create his own business. Trained as an aeronautical engineer, Mike had specialized in designing equipment that involved air flow, pressures, vacuums, and electronic controls. That experience with complex air flow systems transferred easily to the HVAC industry.
Environmental Systems Associates is your #1 HVAC contractor in Howard County, MD and the surrounding communities. We are the leading company for all of your air conditioning needs. If you need repairs, maintenance, or a brand new system installed, the technicians at Environmental Systems Associates are the qualified and professional crew for the job.
You may have heard about ductless heating and cooling systems, but do you know about their advantages? The most common HVAC systems are central air conditioners and heat pumps that use ducts to deliver conditioned air throughout a building. Ductless systems are more flexible than traditional systems, because ductless systems don't use ductwork.
Environmental Systems Associates is the leading HVAC company in Howard County, MD, for your furnace service needs. We service and repair all makes and models. If you need furnace service, we are the company to call. Our skilled technicians are qualified to solve just about any repair or installation that you throw at us.
Reviews (14)
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Bill Hawkins
Jun 15, 2022
This ESA team removed our old heating and a/c system and installed a new one. They came on a Saturday morning and were done in two hours, working as a well trained team. They were efficient, courteous, and informative and left the work areas spotless. Thanks for leaving us prepared for a hot summer. Highly recommend Environmental Systems Associates.
Joan LeRoy
Jun 15, 2022
We had the entire HVAC system, including a new hot water heater installed recently. It was a big job and the crew who got the job done in a timely, professional and clean manner. I was instructed on how to use the new system. Thank you. Service: Installation
Kapil Bhanot
Jun 07, 2022
Mr. Hendricks was amazing - he was able to quickly get back to us after our AC died and found a heat pump system for us in stock at a reduced price. The installation team (Dennis, Seth, Skyler, and John) was friendly, professional, and did a great job. We have a 2 month old and our AC broke - we were afraid we were going to have to wait a long time to find an AC in stock. Thank you so much.
S.
Jun 07, 2022
There is a good reason why ESA is in demand. Letting just anyone mess with your HVAC can be a disaster, an expensive one- and an expensive lesson I learned. These guys are good at their work, and not out to rip you off. It can feel daunting as the most of us are not HVAC experts. I felt like I was getting professional advice with sensible and relatively affordable options. Highly reccomend, they have a lifetime customer now.
Lucy Hunter
Mar 22, 2022
After using Environmental Services for over 40 years, I have to comment that in the last 6month I have found their service to be totally unacceptable. They have refused to honor my prepayment for last years service agreement. Each time I have called, a receptionist says I need to speak with the service manager, Steve. She always says he is "out of the office" and connects me to his phone message line.

He has never returned my 3 or 4 messages. I have been a paying customer to them since early 1970's. What happened to loyalty - something has changed in their business model. I am finding a new company.
Barry Windheim
Mar 09, 2022
We have been using Environmental Services for 30 years. Tonight, 3/7/22 I called because our Vice thermostat was not working properly. ESA put it in 9 months ago. Later with a winter checkup we complained about this thermostat and they were supposed to put in a different one. The technician did not bring one. Today, I called after hours and tI explained that all I wanted to do is find out how to turn off the system because it keeps running and running.

The operator said she will take the message and someone will call in the morning. Yet, the recording says if it is an emergency press o. I don't think that is the way to handle an emergency if your system won't shut off. All I am asking is for someone to call back and guide me on how to use this confusing VIVE thermostat. In the past a person has called back and helped me over the phone. ESA's service has deteriorated in the last couple of years. Like I sad we have been loyal customers for 30 years. Plus the fact their more recent payment structure for service contracts is lousy.
Elaine Stenzler
Mar 05, 2022
All three men and their helpers did an excellent job. Worked from the time they arrived until the job was finished. Coordinated the installation of the new heat pump on the roof with the installation of the new heating and A/C unit in our condo unit. Also they responded quickly to make an adjustment for a minor problem, which was then resolved.
LeeAnn Geist
Jan 18, 2022
The teams that installed our water heater, furnace & air conditioners were fantastic. They kept us apprised of their progress and completed the entire project (basement & attic) in one day. Shout out to Ryan, Dennis, Cody, John & Dylon. Services: Heating system installation, Installation, Install AC
Curtis Reed Ii
Dec 21, 2021
Excellent service! Salesperson was a true professional and educated us on what or house needed and the system we were getting. The installation crew did an outstanding job with a very nice install, clean up was great they even set up and explained our new smart thermostat. We are extremely happy with our entire experience with EAS and our new HVAC system and smart thermostat.
John Hartge
Mar 08, 2021
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.
Candice K Bagrosky
Jan 21, 2019
This is an amazing company with great service staff. I had an issue with my heat pump this morning and they had a service person at my door within an hour .... and my heat pump was operational within an hour. I have always been impressed with the quality of their work but today was exceptional! Thank you for getting my heat back on today !
Ervin Murfree
May 03, 2018
Outstanding service from beginning to end: I called early morning and they were able to schedule me for that day. Dennis was the technician who came out; he was considerate of my home (including my spoiled dog) and my non stop questioning. He diagnosed the problem quickly and had my a/c up and going in no time. More, Dennis gave me a frank assessment of my current a/c system without all the typical sales hype. I really appreciate the way Dennis and ESA addressed my problem.
Sarah Hamilton
Aug 10, 2017
They were friendly, efficient and knowledgeable. I called after 4 0'clock and was scheduled for 8:30 - 10 the next morning. Dan arrived before 9:30 and was back before 2pm to install the new motor. So glad to have a working A/C.
Bob Henig
May 18, 2017
EVA is simply the best there is. Ivan G. (one of their technicians) recently did a full system check at our home. He could not have been more professional, more competent or friendlier. I had questions and he had answers. He arrived on time, performed his tasks and reported back promptly. He helped keep our house clean by using boot covers every time he entered, exited and re-entered. Impressive. We're a long time customer and I can't imagine it gets better than this. Try them and you'll see why.