95.8% would refer friends and family to us

5 stars Customer since 2011

Always on time and professional even as they have to work their way past the slobbering 80pound dog(whom they ALWAYS pet and fuss over.)! They are always extremely nice They never try to push other services. When I asked about when I should call about my winter check up he informed me about their service plan that if I have both done every year that it would save me money and they will call to remind me. Since I can't remember alot of things these days that will be a huge help. When I had a radiator pipe birst in my living room last year- Darren made sure it was fixed quickly and properly. Since I live in an 85 year old home that's not always easy but they took care of it promptly. I highly recommend Darren and his whole of technicians. Susan Cook

5 stars Customer since 1986

They are incredibly professional and know what they are doing. Prompt, friendly; always gentle reminders to change filters, but always bring filters with them knowing you won't member. Would not buy equipment or have it serviced from any other business.

5 stars Verified customer

Friendly, competent service. Answered all my questions graciously. Didn't hesitate to go the extra mile for good customer service.

5 stars Customer since 2013

Tim is my Gartner service person & I would not have anyother person into my house. Tim is wonderful

and he has a terrific personality. Also, he i very intelligent. I hope that this review will be entered into

his record so that when it's Money Raise Time this review will be considered.

Thank you, Carolyn Cooper 847-275-9445

5 stars Verified customer

Technician arrived on time. He phoned about 20 minutes before his arrival as requested. Very efficient and helpful, as is always our experience with Gartner.

5 stars Verified customer

We have used Gartner for many years. They are always prompt and thorough, if they're here for a problem they explain what"s going on on and how it will be fixed.

5 stars Customer since 2012

First class

5 stars Customer since 2014

Gartner did a great job, on time, on budget !!!

5 stars Customer since 2007

Our technician installed and services our units as though they were his own.

4 stars Customer since 2006

The office was going to follow up if our part for the humidifier was covered under warranty.

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