★ ★ ★ ★ ★
"Always great services. Highly recommend"
— Robert B.
(Google Review)
★ ★ ★ ★ ★
"Hartman Brothers has always given me great service. I feel comfortable knowing they are taking care of my heating and ac needs.
Everyone is responsible, and I am very comfortable with all of the techs taking care of my maintenance even when I'm not home."
— Shelly K.
(Google Review)
★ ★ ★ ★ ★
"Great pleasant staff from the initial phone call to the service tech! Friendly, knowledgeable, and conscientious."
— Kimberly B.
(Google Review)
★ ★ ★ ★ ★
"Wonderful experience. The service technician was very polite and explained everything very clearly so glad I had them service my furnace."
— Mic Garcia
(Google Review)
★ ★ ★ ★ ★
"I had just called in yesterday for a non-emergency plumbing repair and they were out first thing this morning! Brad was very professional and courteous and he got everything taken care of very promptly. He had to go get a part and was back faster than I thought he could be. Great job and I will call again for my plumbing as well as my HVAC needs."
— Roger D.
(Google Review)
★ ★ ★ ★ ★
"Brian is an asset. He knows his stuff and is very personable. As a 12-year annual service customer The visit involved testing and advice and a small amount of refrigerant. The visit last about an hour."
— Tom Jurczak
(Google Review)
★ ★ ★ ★ ★
"Our Tech was amazing to work with, he was very patient and answered every single question that we had didn’t rush us at all. We had Hartman at our previous home, continued the service at our new home. Would highly recommend them to anyone!"
— Jerry C.
(Google Review)
★ ★ ★ ★ ★
"Very polite man and got furnace ready for winter"
— Edith V.
(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.
