★ ★ ★ ★
"Honest people and good service. Lime anything you don’t know how to do yourself, expect to pay the premium for someone that took the time to learn how:)."
— David N.
(Google Review)
★ ★ ★ ★ ★
"Once again, technician was very nice. Completed work efficiently. No complaints."
— Dennis M.
(Google Review)
★ ★ ★ ★ ★
"Service staff was friendly and answered any questions I had."
— Ed C.
(Google Review)
★ ★ ★ ★ ★
"Professional from start to finish. Arrived on time. Installation went smoothly. Faster than expected. Very helpful from the start. Answered all questions. Communication was excellent."
— Michael T.
(Google Review)
★ ★ ★ ★ ★
"Just had our 6 months maintenance on our furnace. Technician Ked is courteous and very thorough and always takes good care of us."
— Jeff K.
(Google Review)
★ ★ ★ ★ ★
"Jim went over and above as he identified a problem that other techs had not noted in the 2 years prior and took the time to educate us on the issue. We also had questions about our thermostat settings and while in our home, Jim researched and found the answer. Great service isn’t always knowing it all, but rather assessing situations, thoughtfully problem solving, and seeking answers from others when needed. Jim did all of that and we appreciate the excellent service provided."
— Melanie K.
(Google Review)
★ ★ ★ ★ ★
"Excellent same-day service!"
— Larry A.
(Google Review)
★ ★ ★ ★ ★
"Our AC went out and they sent someone out within a few hours and the problem was fixed quickly. With our service membership we also got a discount so the repair price was reasonable. I was very impressed with how quickly and professionally they fixed the problem especially in the middle of summer when they must get a lot of AC calls. Will definitely continue to use Hartman Bros."
— Jane Christensen
(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.
