★ ★ ★ ★ ★
"Great service, as usual. Ked was prompt and he is very experienced and knowledgeable."
— Gene F.
(Google Review)
★ ★ ★ ★ ★
"Ked was my "usual" service tech for many years. He was always friendly & kind...and didn't mind letting my big dog say hi. He was always professional and efficient. I liked having the piece of mind in knowing my HVAC needs are met & running well. I have used their maintenance plan for many years now, and haven't been disappointed. Well, Caleb didn't disappoint either. He loved my "big boy" and had a great sense of humor. He was very thorough in servicing my air conditioner. I feel I get my money's worth from my maintenance plan each year. I love when they say, "Everything looks good, no problems. See you in the Fall.""
— Donna D.
(Google Review)
★ ★ ★ ★ ★
"My husband and I were very pleased with the quality of service we received today from Caleb. He worked very hard to figure out why our furnace wasn't working. He also cleaned the coils which provided us with better air quality. We are now enjoying a cozy warm home again. Thank you Caleb for a job well done."
— Helen T.
(Google Review)
★ ★ ★ ★ ★
"They were on time, cleaned up after themselves, and the quote they gave was exactly the amount charged. I would use them again and recommend them."
— Karen Watson
(Google Review)
★ ★ ★ ★ ★
"Caleb was very professional in how he handled the service. I like how messages were sent updating the arrival time."
— Lane
(Google Review)
★ ★ ★ ★ ★
"All of the Hartman Bros employees are very polite, helpful, efficient and courteous. They always have answers to my questions. Im very happy with Hartman Bros. Caleb did an excellent job, is very polite, efficient and I highly recommend Hartman Bros!!"
— Renee Collins
(Google Review)
★ ★ ★ ★ ★
"I have used Hartman Bros for many years. They offer excellent service, stand behind their products, give honest advice and are top notch professionals."
— Lisa Johnson
(Google Review)
★ ★ ★ ★ ★
"Josh was very pleasant. He explained what happened with my Furnace in the cold weather and why it happened. He had the Furnace working again quickly."
— Lisa B.
(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.
