★ ★ ★ ★ ★
"Excellent job!! He explained everything."
— Terry F.
(Google Review)
★ ★ ★ ★ ★
"Hartman Bros representatives are wonderful! Caleb is super great at answering all my questions and explaining everything so I feel very much at ease. I definitely recommend Hartman Bros for heating and AC installation and servicing. Their employees are super polite and very helpful and pleasant! Great job as always!"
— Renee C.
(Google Review)
★ ★ ★ ★ ★
"Nothing short of FABULOUS!!! Darian and Brandon provided us with outstanding service. They were diligent, skilled, hard workers and excellent communicators. Friendly and generous with their help, even doing a couple extra jobs to make things easier for us! And they were immaculate with clean up. Highly recommend Hartman! Professionalism and excellence all through this process!"
— Susan Kanpol
(Google Review)
★ ★ ★ ★ ★
"My husband and I were very pleased with the quality of service we received today from Caleb. He worked very hard to figure out why our furnace wasn't working. He also cleaned the coils which provided us with better air quality. We are now enjoying a cozy warm home again. Thank you Caleb for a job well done."
— Helen T.
(Google Review)
★ ★ ★ ★ ★
"Very friendly and quick service, even on short notice. We will be able to sleep comfortably tonight with our fixed air conditioner! Thank you, Hartman Brothers!"
— Brittany Grote
(Facebook Review)
★ ★ ★ ★ ★
"Every thing went well, even though he had bad news that the unit needed to be replaced due to the fact that the unit was 18 years old and the refrigerant used in the day was R22 that it cant be purchased because of government regulations, now we will see what the estimate will be. The technician seems to be knowledgeable and was very professional about his work."
— Harold Breames
(Google Review)
★ ★ ★ ★ ★
"Serviceman on time, friendly, polite, professional. I will recommend Hartman Bros. To anyone who asks if I know good company for heating/ac. Very glad I chose them."
— Patricia Stine
(Google Review)
★ ★ ★ ★ ★
"Fast and efficient service. Josh got right to work and fixed the problem. Called office at 1:20pm and they were right out and the problem fixed by 3:30pm"
— Catherine Franklin
(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.
