Compare top-rated hvac providers in Knightsville. Profiles include verified reviews, service details, and direct contact options.
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In Knightsville's thriving community, we, Carbon Heating & Air Conditioning, are proud to serve as your trusted HVAC specialists. With a focus on …
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Filter by neighborhood, check locations on the map, and find providers close to home or work in Knightsville. Listings are refreshed regularly — August 2026.
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Your employees on lunch break today in their work truck in line at McDonalds gave a couple of senior folks passing through Brazil from Ohio a surprise when we found out Carbon Heating and Air paid our tab ahead of us. First class act, lads! Well done, indeed. Very much appreciated from a PAIR of 35 years each of military service. Should any of my family/friends in this area are of need of your services, I will be sure to trust a company with those unselfish acts of kindness. God bless you and yours, Rick Howard Fairborn, O.
Defintely recommend Carbon Heating and Air. Doug and his crew are friendly and honest. They installed a new HVAC system for us at a reasonable price and in a timely manner.
Got a new furnace today. Bryan Sean and Joe were GREAT! They did a FANTASTIC JOB installing the furnace! Me and my wife highly recommend them!
Very knowledgeable, always arrives on time, and quick responses in all situations. Very nice and polite. I highly recommend ,Nathan
They were here within a very short time after I called. Within 30 minutes they had things taken care of. My furnace was good to go. Very very happy with them.
My electric furnace wasn't working correctly so I called them. They came out within an hour and looked at it. When he left, he said he would email me an estimate. I got the estimate for over $900 for replacement parts but they wouldn't tell me when it would be in. I called the office twice over two days and no one would give me a timeframe of when it would get fixed. The weather was forecast to be in the teens to low twenties and I needed to make plans so I wouldn't have a cold house, but they never got back with me on a timeframe. I got tired of waiting so I called another local heating company, and they came out and fixed it in about an hour and only charged me $140! $900 is a big difference from $140. I should have called the second company the first time.
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