"Very pleased with his work and prices and was very prompt from the time I talked to him initially to getting the unit ordered and getting it installed. Cleaned up after and hauled off old unit. Would recommend him to anyone looking to replace their old havc equipment. R Stafford"

"They were excellent.  They worked out a way to save my driveway which would’ve really increased the price of the job and also the length of the job.  They had to completely rethink how my sewer line was done from the way that it was originally put into the sewer in the 1970s.  From my house all the way to the box where it led into the main sewer line, there was only 2 feet of drop in almost 300 feet, so they moved where it fed into the sewer line into a point where it dropped slightly more so that we could get 4 feet of drop in the line where there were spots that didn’t have any drop for 10-12 feet before. They came out the same day and they were here for 2 days straight."

"David Cole, the owner, was very professional and courteous. Did everything he said he was going to do and did it well. I had him install a completely new furnace and AC system. I would hire him again if the need arises."

"Callahan Heating and Cooling have been to our house many times providing maintenance to both our air conditioner, heater and cleaning our dryer vent. They are always extremely professional and thorough with each visit. They have gained a customer for life!"

"A/P installed a mini split in my garage. Delivery and installation was quick and efficient"

"Did a great job with great work ethics. Polite and very professional. Would highly recommend."

We take pride in delivering expert Heating and Cooling with accuracy, professionalism, and top-quality service. Our certified team is committed to identifying issues quickly and clearly, helping provide your home with heating and cooling with confidence.\n\nOur reputation is built on reliability, safety, and honest results no matter the size of the job.

"It was good. They were very honest. They responded quickly. They warranty their products well. If there's a problem, they'll come back to fix it."

When homeowners want a reliable heating or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning of Springfield. We are the premier HVAC service provider in the Springfield, Nixa, Ozark, Republic, Rogersville, Willard, Walnut Grove, Fair Grove, Ash Grove, Billings, Clever, Sparta, Highlandville, Strafford, Battlefield, Turners, and Brookline for a simple reason: we actually care about your comfort and time.\n\nAt One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It’s why we back all of our work with a 100% customer satisfaction guarantee for two years, and it’s why we’re always on time—guaranteed.

"Came out on a Sunday and still didnâ t charge an arm and a leg. It was a simple fix so we were only charged for a service call."