★ ★ ★ ★ ★
"Very nice and efficient would highly recommend to anyone!"
— Vicky S.
(Google Review)
★ ★ ★ ★ ★
"Service manager made room in the schedule for warranty work, it was very much appreciated and the service tech Caleb was awesome. We are new to the area and will be using this company. Great job!!"
— John W.
(Google Review)
★ ★ ★ ★ ★
"Excellent job!! He explained everything."
— Terry F.
(Google Review)
★ ★ ★ ★ ★
"Jim,
Did a great job on are heating and cooling system.Checked all items washed down heat pump. I would like to request Jim to return to check our system on the next 6 month check up."
— David B.
(Google Review)
★ ★ ★ ★ ★
"These people are Amazing I have never had any trouble at all. They are always there if you need them, anyone that comes is always respectable and caring about you. A great group of staff That's for sure I'm so happy we went with them for our needs."
— MaryJane L.
(Google Review)
★ ★ ★ ★ ★
"Ked was excellent, friendly from the start and extremely helpful. Because of how thorough he was, he fixed the problem but also discovered another potential problem and promptly fixed it as well."
— Casey Holt
(Google Review)
★ ★ ★ ★ ★
"Caleb did a great job. He is thorough and answered all of my questions."
— Rodney H.
(Google Review)
★ ★ ★ ★ ★
"My toilet was not functioning correctly and i was going to call someone to fix... my son in law said call Hartman...i think they do plumbing, too. I didn't know that! Hartman has taken care of my heating/air since 2001 so i didn't even hesitate to call! Brad was great and was able to remedy the issue quickly. He was polite and knowledgeable! He also showed me where to turn my water off for future reference. Another great experience with Hartman!!"
— Laura F.
(Google Review)
Today's ductwork design principles correct thermal losses, pressure imbalances and other errors that waste energy. In the past, design and fabrication of ducts were done with the aim of minimizing costs. If you're looking to improve your home's efficiency and comfort, you should be aware of the principles of modern ductwork design below.
The average homeowner spends 20 to 30 percent more energy than necessary for cooling and heating bills due to leaky and inefficient ductwork. If you are constructing a new home or 