★ ★ ★ ★ ★
"Technician was on time, professional and completed our HVAC service promptly. Would highly recommend Hartman Brothers!"
— Eric Korte
(Google Review)
★ ★ ★ ★ ★
"The technician was knowledgeable and upon request he was nice enough to educate me on the system and it's safety features as he completed his diagnostic and service."
— Daniel Burke
(Google Review)
★ ★ ★ ★ ★
"Very happy and COOL now. Caleb was super nice and seemed very knowledgeable!!! We still have a problem, but he got us up and running for the weekend after a long week of 90 degrees in our house. Hoping they send Caleb back on Monday to finish the job."
— Deb
(Google Review)
★ ★ ★ ★ ★
"Above and beyond. Hard to find people that take pride in their work. From the office to the field, this is a top notch company."
— Kurt Drummond
(Google Review)
★ ★ ★ ★ ★
"I have used Hartman Brothers for many years. I have never had a problem. Top notch folks!"
— John Wiesemann
(Google Review)
★ ★ ★ ★ ★
"Always a tremendous experience with Hartman Brothers. I have used them for more than 25 years and gotten to know their people more like friends/family than vendors... because that's exactly how they treat their customers! Always a pleasure to deal with and their work is exceptional as a bonus. Would give them 6 Stars if it was an option."
— Scott Sproat
(Google Review)
★ ★ ★ ★ ★
"Josh diagnosed the problem with my furnace and will be saving me thousands of dollars! Thank you!"
— J.
(Google Review)
★ ★ ★ ★ ★
"Had our a/c quit functioning over the weekend. Called first thing Monday and they were able to get someone out in the morning and had us back up and running before we knew it!! Great service experience from initial phone call to completion of the job couldnt be happier!!"
— Bud Brewer
(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.
