★ ★ ★ ★ ★
"Great first impression with the receptionist who answered my call after the first ring! She was friendly, professional, and genuine... The service repair technician was professional and took time to explain the repair that he recommended to the A/C unit. He fixed the unit on the spot. Not only great service, but great people too. Thank you, Hartman Brothers!"
— Stephen Vachon
(Facebook Review)
★ ★ ★ ★ ★
"My experience was excellent. The furnace runs very quietly and before when it would come on and I was sleeping it came on so loud it would wake me up. I'm so pleased with Hartman Brothers."
— Carol Perkins
(Google Review)
★ ★ ★ ★ ★
"We've been using Hartman Brothers for many years to service our personal residence and also our church building. They are very friendly, professional, and reliable!"
— Dave W.
(Google Review)
★ ★ ★ ★ ★
"I would recommend anybody that needs an air conditioning and furnace go to Hartman brothers very friendly, good service and will do you a good job. they have my business for now on!"
— Richard W.
(Google Review)
★ ★ ★ ★ ★
"Josh at Hartman Brothers did a good job. He quickly figured out the problem and got it fixed for 1/3 the cost I was expecting! He did not "find" problems or try to get us to upgrade, just did exactly what we needed him to do. I would strongly recommend calling Hartman Brothers for installing or repairing your AC/Heating!"
— James S.
(Google Review)
★ ★ ★ ★ ★
"The serviceman was on time, did a very thorough job, and helped me with a couple of other small issues with the thermostat and A/C at the same time."
— Lynn P.
(Google Review)
★ ★ ★ ★ ★
"I've used Hartman Brothers for all my HVAC needs across multiple properties and they are always responsive and timely. Dalton was my technician and demonstrated a high degree of both professionalism and helpfulness. Vicky is their jack-of-all trades office and scheduling manager. She always does a phenomenal job and makes you feel valued as a customer in every interaction. You can't go wrong with this company. Strongly recommended!"
— Spencer Lulling
(Google Review)
★ ★ ★ ★ ★
"Very satisfied with service arrival time and communication. I would recommend."
— Henry G.
(Google Review)
While geothermal heat pumps are an energy-efficient option for heating and cooling your home, you may find that after a period of time, things don't work as well as they did when the geothermal heat pump was first installed. There are some common issues that you can look for before you call in a professional, and some things you shouldn't try to handle yourself.
If you're in need of a new heating system for your Northeast Indiana home, consider a hybrid heat dual fuel system. These combine the efficiency advantages of heat pumps with supplemental heat from a combustible fuel, typically natural gas. Air-source 
Duct sealing is one of the easiest and most effective ways to improve your HVAC system's efficiency. In the average Indiana home, around 20 percent of conditioned air is wasted due to leaky ducts.
