87.8% would refer friends and family to us

5 stars Verified customer

Efficient knowledgeable friendly technicians and office staff.

5 stars Customer since 2016

Jet, was prompt, efficient, thorough and answered all my questions.

All good!


5 stars Verified customer

Service technician called prior to arriving and arrived timely. He quickly diagnosed problem and was able to fix problem on site. Money well spent.

4 stars Customer since 2007

Sadly after being nearly 4.5 hours late, the service man who came was super, nice and friendly. Repaired our system in 10 minutes and gave me tips to prevent in the future.

4 stars Customer since 2005

Gartner has done a fair amount of work for me in the past several years. They removed an aging steam heat system (removed boiler, radiators, baseboard heaters, and all the piping) and installed a new high efficiency gas furnace and central A/C along with installing all new the ductwork and floor registers in a 90 year old house. They did a good job as evidenced by the positive comments a plumber and a remodeler made upon seeing the ductwork. They also replaced a gas furnace in another house with a new high efficiency furnace so they had to put in new exhaust pipes, and they had to slightly modify the ducts to fit a furnace that was a slightly different size and shape. This major work was done well at a good price and I liked that they gave me a range of options without pushing the most expensive option even though it is what I chose for the higher efficiency (trying to use less energy to contribute less to global warming).

I was surprised that the company was so booked up this fall that the routine maintenance had to be scheduled a full month after my call, but I figured that they were probably busy fixing furnaces that didn't work once the weather had actually gotten cold enough to need to heat. The reminder phone call the day before confirmed a "10am-12" arrival, so I was not expecting the crew when they arrived 1.5 hours early at 8:30am. At least I was home and it was OK for them to just do the serving early, but I would have preferred to have been given notice if they were going to arrive that far out of the window of time given.

As with my past experience with this company, the workers were friendly and polite and told me exactly what they checked and did. I asked them to replace the humidifier pads since the thermostats had been saying they needed changing for a few months. They said they "probably" had the right pads in their truck, although I had specifically requested new pads when I placed the service call to make sure that they came with the right pads. But they did have the needed pads and changed them. A minor quibble is that they did not properly reset one of the thermostats after the service was complete, so it gave me another "reminder" that the pad needed to be changed a couple days later. It was easy enough to reset it myself, but it's a detail that was missed.

Overall, Gartner is a very good local family-owned business. They are honest and straightforward and do good work. They could be a bit better with attention to small details, but I do wholeheartedly recommend the company to friends.

5 stars Customer since 2014

Excellent. The boss came out and took care of the maintenance on my furnace. There was some confusion as to the time the technician was suppose to arrive. I called and the owner came over and took care of it

5 stars Verified customer

I believe our tech's name was Mike and our experience was positive. He was easy to work with and answered a number of questions I had.

5 stars Customer since 2007

They were so accommodating when I needed to reschedule.

4 stars Customer since 1999

Mike was very conscientious, went the extra mile to acquire the part we needed so that we wouldn't be out of heat over the weekend, and cleaned up after his work. Since we prefer the same technician to service our account we would like to request that he supports our account.

Thank you,


5 stars Verified customer

Always outstanding service!