Testimonials – Gas Furnaces Articles

Gas Furnace Repair in Columbia, MD 21044

November 9, 2022

“Wow! I see why they’re the best in Howard County. Richard ensured we received the best quality service. He was fully transparent about what was and was not needed. Alex did an outstanding job at figuring out what was wrong with the unit. Moreover, they did not leave until it was fixed. Honest, knowledgeable and…

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Gas Furnace Repair in Ellicott City, MD 21042

January 7, 2021

“We would like to recognize Nicholas for his outstanding efforts in troubleshooting our recent issue with our furnace thermostat. We called ESA because our thermostat screen would turn “blank” several times a day for several minutes. Initially he thought we would need a new thermostat unit, so a followup appointment was scheduled for the next…

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Gas Furnace Installation in Ellicott City, MD 21042

October 7, 2020

“The team that installed our new furnace/AC did a great job. They were professional, wearing masks, and were efficient. At the end, the team leader explained every. I am very impressed with every aspect of the job.” – Robert F.

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Gas Furnace Installation in Columbia, MD 21044

July 22, 2019

“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.

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Gas Furnace Maintenance in Ellicott City, MD 21042

April 9, 2019

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

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Gas Furnace Repair in Columbia, MD 21044

January 17, 2019

“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…

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Gas Furnace Maintenance in Columbia, MD 21044

October 22, 2018

“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…

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