★ ★ ★ ★ ★
"Josh diagnosed the problem with my furnace and will be saving me thousands of dollars! Thank you!"
— J.
(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)
★ ★ ★ ★ ★
"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)
★ ★ ★ ★ ★
"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)
★ ★ ★ ★ ★
"A technician came out to perform an annual service call on air conditioning/heat pump. He also made a minor adjustment to thermostat programming . He was prompt and efficient and discussed future maintenance regular service options."
— Judith B.
(Google Review)
★ ★ ★ ★ ★
"Our technician arrived as scheduled, was courteous at the door and asked if it was OK to come into the house, after which he put his booties over his work shoes. He (I wish I knew his name) seemed to complete his tasks efficiently, cleaned up his workspace and gave a thorough rendition of the condition of our AC unit. I appreciated his work and glad that we had the service contract. Great Job!"
— Michael R.
(Google Review)
★ ★ ★ ★ ★
"Excellent job!! He explained everything."
— Terry F.
(Google Review)
★ ★ ★ ★ ★
"Technician was on time, professional and completed our HVAC service promptly. Would highly recommend Hartman Brothers!"
— Eric Korte
(Google Review)
Normally, a properly functioning air conditioner makes occasional pops, hisses, rattles, and a quiet hum that shouldn't be a cause for concern. However, if you notice a loud humming or buzzing noise, your unit is probably malfunctioning. Several issues can cause a humming air conditioner. Let's take a closer look at them along with their solutions.
