★ ★ ★ ★ ★
"Great service, as usual. Brad replaced a toilet for us. Done efficiently and expertly!"
— Gene F.
(Google 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)
★ ★ ★ ★ ★
"Very satisfied with service arrival time and communication. I would recommend."
— Henry G.
(Google Review)
★ ★ ★ ★ ★
"Great local company! Always on time and thorough in their service. Plus, just plain nice people."
— Donna R.
(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)
★ ★ ★ ★ ★
"Hartmans installed my HVAC and ducts about 5 yrs ago and I've done the maintenance agreement every year. Every tech that has come out has been informational, professional, and thorough."
— Terina C.
(Google Review)
★ ★ ★ ★ ★
"Josh was very knowledgeable! He was able to find the problem with our furnace and fix it. He was not pushy and didn't try to sell us anything we didn't need! We will definitely do business with Hartman's again when needed!"
— Brian Trumbower
(Google Review)
★ ★ ★ ★ ★
"They always let me know when they are on the way and were on time - actually early! Always friendly and professional."
— Joan G.
(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 