You can be sure the price you're paying for repairs, maintenance or new equipment installation is a fair price in your local market.
Our offices are open during regular business hours, but you will always speak to a real person if you have an after-hours no-air or no-heat emergency!
Qualified HVAC Experts
Our service technicians are NATE-certified and receive ongoing monthly training. You can count on getting the right answer for your heating and cooling questions.
Home Heating and Central Air Conditioning Service, Maintenance And Installation Services You Can Rely On
Serving Columbus Ohio Since 1962
Dor-Mar Heating & Air Conditioning has attained a track record as Columbus’ most reputable, trustworthy HVAC contractor. With offices and service technicians available throughout the metro Columbus, Newark and Zanesville areas, we bring responsive, family-oriented service to your door, frequently the same day.
Starting out as a small door-to-door contractor, our family owned and operated enterprise has grown to one of the largest heating and cooling service companies in Ohio. We hold our employees to the highest standards to provide our customers with the very best HVAC service possible. Our 30+ employees are passionate about taking care of your needs in the fastest, friendliest, most efficient way conceivable. Our service technicians, installers, customer service representatives, office personnel and supervisors attend frequent training sessions, ensuring we stay in front of updates in the ever-changing HVAC industry.
As a result of our effort and devotion to customer service, Rheem & Coleman recently acknowledged us as a “Top Team Contractor.” We offer free estimates on brand-new equipment, and provide customers with 24-hour professional service.
Call Dor-Mar Heating & Air Conditioning to book a service appointment for your home’s air conditioner, heat pump or furnace, or for a free, no-obligation consultation to determine the perfect system for your home or business, despite of size.
We anticipate adding you to our long list of completely, positively satisfied customers in the Columbus, Ohio area.
FOR REVIEWS FIND US ON
More offices mean we can dispatch one of our certified service technicians to your door quickly.
Our offices are open during regular business hours, but you can reach our dispatch person 24/7. We are there when you need us!
Never a toll call or long distance charge. Our phones and highly-qualified service techs work at YOUR location.
for Columbus, OH
Gene – Columbus, OH
Tech was prompt professional and very knowledgeable.
Great customer service
Mindy – Columbus, OH
Ron was polite, respectful and listened. He was also very helpful. I will ask for him again if I ever need heating/cooling service.
Kahal – Columbus, OH
Technician arrived on time introduced himself and ordered part for future installation. It definitely wasn't the news I wanted to hear but I felt comfortable and they seem trustworthy. I will update after installation.
Really nice guy that came and saw our system.
Bob – Columbus, OH
Great response. They were here within three hours.
Dan – Columbus, OH
Very good with service. Unfortunately Servicer determined that new furnace installation completed 20 months ago was done poorly / incorrectly and may have even compromised my Rheem furnace with some water damage from ac coil and overall set up of furnace. Yes Dormat is going to correct the installation and make the set up correct, but I won’t have the benefit of knowing if my furnace useful life or warranty will be shorted over time. May be years before knowing. I am moving forward by adding new Ac at the same time as the furnace is reset correctly.
Ryan – Columbus, OH
You all have been very responsive and great to work with!
Linda – Columbus, OH
Great service. Fast turnaround, nice guy!
John – Columbus, OH
Garrett was very knowledgeable and explained everything
Great customer service
jody – Columbus, OH
Thank you Cory for getting our air conditioner up and running . After almost 2weeks without
Steven – Columbus, OH
new customer , needed a service call for air conditioner
Yearly maintenance on Rheem furnace in Columbus Ohio
scheduled a routine furnace inspection
Fixing a leaking line on a hot water tank