

RAPID RESPONSE
Heating and Air Conditioning Service Nearby
Why Choose Dor Mar
Heating & Air Conditioning in Newark, Ohio?
Since 1962, Our Customers Have Been Experiencing Our Fast, Friendly Service

Fair Pricing
You can be sure the price you're paying for repairs, maintenance or new equipment installation is a fair price in your local market.

24/7 Service
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.

Heating and Air Conditioning Service, Repair and Installation Services You Can Count On
Serving Newark Ohio and Licking County Since 1962
HVAC Contractor
Dor-Mar is one of the highest rated HVAC contractors in Central Ohio. In business since 1962, we consider our customers the most important part of our business, and it shows in our online ratings.
What does an HVAC Contractor do?
An HVAC contractor is a business whose service technicians are tasked with installing, maintaining, and repairing heating, ventilation and air conditioning systems. In the state of Ohio, a professional license is required for a company to perform these services. Learn More About HVAC Contractors
Heating Contractor
One of our primary services is to serve Central Ohio’s needs as a Heating Contractor. The job of a heating contractor is to install, repair and maintain heaters, ventilation systems, and air conditioners. This includes associated equipment like ductwork, thermostats, furnaces, heat pumps and boilers. Some heating contractors offer additional services like performing energy audits, cleaning ductwork, installing indoor air quality equipment, or sealing ductwork.
The Best Heating Contractor Keeps Your Family Comfortable
If your heating equipment breaks, or is in need of any type of maintenance, repair, or replacement, a heating contractor is the right professional to reach out to. Find out more about Heating Contractors
Heating Equipment Supplier
In addition to maintaining and repairing heating equipment, furnaces and heat pumps, Dor-Mar offers replacement equipment. When it’s time to replace your heating equipment, it’s just as important to choose the right equipment supplier or installer as it is to choose brand, BTU, efficiency, and other elements of your system. If you are spending money to repair a heater that’s more than 10 years old, it might make more sense to replace it with a new, more energy-efficient furnace. Undoubtedly, the new system will use less energy simply because newer units include improved technology. Central Ohio’s Top Heating Equipment Supplier
Furnace Repair Service
Dor-Mar Heating and Air Conditioning is an award-winning Furnace Repair Service in business since 1962. We’ve been providing professional, timely heater repair and maintenance services to central Ohio since 1962. Our certified and highly-trained furnace technicians are ready and available around the clock to quickly respond to your lack of working heat. Our goal is to get your family back to comfort as quickly as possible.
24/7 Furnace Repair Availability
Our expert HVAC team is available during regular business hours, all night/every night, on weekends, evenings, and holidays, to provide quick access to the area’s top furnace repair service at a reasonable cost. Get Expert Furnace Repair Service
Fast, Reliable Air Conditioning Repair Service
Dor-Mar Heating and Air Conditioning provides expertly trained and EPA-certified technicians to perform fast and reliable repairs to residential and/or commercial air conditioning systems. We service all major brands, providing A/C repairs, heat pump repairs, and central air conditioning repairs.
We can perform repairs on many types of air conditioning systems or A/C parts, including:
- Air Conditioning Repairs
- Emergency Air Conditioning Repairs and Service
- 24/7 Air Conditioning Repairs
- Heat Pump Repairs
- Ductless AC Systems
- High Velocity AC Systems
- Central Air Conditioning units
- Compressor Repairs
- Freon or Puron coolant leak repairs
- Emergency A/C repairs
- Air Conditioning Zoning
- A/C Tune-Ups and routine maintenance
Our team’s AC repair expertise includes all major makes and models of central air conditioning and heat pump systems. Whether your AC equipment is old or new, if you’re looking for a minor or major repair, routine maintenance, or a complete replacement, Dor-Mar Heating and Air Conditioning is the company to call. Find out more about Dor-Mar’s Cooling Repair Services. Get Expert Air Conditioning Repair Service.
Central Ohio’s Highest-Rated Air Conditioning Contractor
Air conditioning contractors install, repair, and maintain the central air conditioning equipment, ductwork, electrical equipment, and controls found in residential and commercial cooling systems.
Did you know that most consumers view online reviews as reliable as a personal recommendation? There are a number of review websites where you can read detailed descriptions of a particular homeowner’s experience. Often these sites also have a 1-to-5 star rating system. Look for a high review count (meaning the company has been around for a while or service a large number of customers) and a high average rating, no less than 4.5 stars. You can also see if the company is actively paying attention to, and responding to, consumer reviews.
Dor-Mar Heating and Air Conditioning has accumulated more than 1,000 reviews and has an average rating of 4.83 stars on Google. We make it a point to respond to every review, positive or (the rare) negative review. If something went wrong, we work to make it right.
Contact the most trusted Air Conditioning Contractor in the Central Ohio area.
Air Conditioner Installation and Replacement
As your old A/C system deteriorates with age, it must work much harder to cool the air inside your home. This means it’s necessary for it to consume more energy to deliver the desired temperature. When you consider this and the significant difference in the energy efficiency of current air conditioning systems versus those manufactured only 15 or 20 years ago, it’s easy to see how switching to a new, state-of-the-art system will represent substantial savings on your energy bills.
Installing a new air conditioning system is not a job for a weekend warrior. The installation must be completed in accordance with local and state building codes and following the manufacturer’s specifications in order to protect your warranty. The job demands a licensed and trained professional like the ones at Dor-Mar Heating & Air Conditioning.
Contact us for a free estimate for replacement air conditioning equipment.
About Dor-Mar
Dor-Mar Heating & Air Conditioning has attained a track record as Central Ohio’s most reputable, trustworthy HVAC contractor. With offices and service technicians on call throughout the metro Columbus, Newark and Zanesville areas, we bring courteous, family-oriented service to your home, oftentimes the same day. Beginning as a small door-to-door company, our family owned and operated venture has grown to one of the premier heating and cooling service companies in Ohio. We hold our employees to the highest standards to provide our customers with the absolute best HVAC service possible. Our 30+ employees are passionate about taking care of your needs in the speediest, friendliest, most efficient manner possible. Our service technicians, installers, customer service representatives, office personnel and management attend frequent training sessions, ensuring we stay in front of updates in the ever-changing HVAC industry. As a result of our effort and dedication to customer care, Rheem & Coleman recently acknowledged us as a “Top Team Contractor.” We offer free quotes on new equipment, and provide homeowners with 24-hour professional service. Call Dor-Mar Heating & Air Conditioning to arrange 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, regardless of size. We anticipate adding you to our long list of delighted customers in the Newark area.FOR REVIEWS FIND US ON





See What Our Happy Customers Are Saying…
We've been satisfying loyal customers since 1962.

Many Locations
More offices mean we can dispatch one of our certified service technicians to your door quickly.

24/7 Service
Our offices are open during regular business hours, but you can reach our dispatch person 24/7. We are there when you need us!

Local Numbers
Never a toll call or long distance charge. Our phones and highly-qualified service techs work at YOUR location.
Local Reviews
for Newark, OH
Customers say: The overall sentiment of the reviews is positive, with many customers expressing satisfaction with the services provided by Dor-Mar. Positive reviews frequently mention the professionalism, expertise, and courtesy of the technicians, as well as the quality of the work performed. Customers also appreciate the convenience of the yearly contracts and the peace of mind that comes with having their HVAC and plumbing systems regularly maintained. Negative reviews are present but are outweighed by the positive ones. Common issues in negative reviews include scheduling conflicts, communication problems, and minor issues with the technicians' work. However, the majority of negative reviews still acknowledge the quality of the services provided and express gratitude for the technicians' efforts.
Excellent service
Cheryl – Newark, OH 43055
Quick , knowledgeable service and took care of the problem !
NewarkOH43055 40.0575-82.4325



Great
Janet – Newark, OH 43055
They were great guys got the job done fast
NewarkOH43055 40.05-82.4125



Excellent
Rachel – Newark, OH 43055
NewarkOH43055 40.0925-82.4375




water heater service
Wanda – Newark, OH 43055
Tech was punctual and respectful
NewarkOH43055 40.0925-82.445



Excellent service!
Danielle – Newark, OH 43055
Very knowledgeable and personable. Advised the age of the water heater 1994… sorry for calling you old. 😂
NewarkOH43055 40.0725-82.415



– Newark, OH 43055
NewarkOH43055 40.0775-82.41
Great
Stefan – Newark, OH 43055
NewarkOH43055 40.045-82.4925




Ron was great and very easy to work with
Joseph – Newark, OH 43055
NewarkOH43055 40.0475-82.4425




Great
Stefan – Newark, OH 43055
Did a great job and was done by 5ish
NewarkOH43055 40.045-82.4925



Excellent Service
Bess – Newark, OH 43055
Great service. Very professional and provided very important information for us to discuss with our contractor so we don’t have problems going forward into the future with our new mechanical room design.
NewarkOH43055 40.0875-82.3475




Trevon S.
Plumbing maintenance. Asked if there were any plumbing issues in house. Checked operation of hot water tank. Checked for any leaks on water pipes. Checked flue pipe for proper ventilation. Flushed sediment out of tank. Performed radon test reading was 3.68. Customer has radon system installed but sight glass was level indicating system wasn’t working as it should. Let customer know fan should be constantly running that it will need replaced. Emailed estimate for radon fan replacement
Nathan W.
This is an estimate to replace heat exchanger and induced draft assembly on Bryant RTU. If you agree to estimate just sign and we will get this work scheduled. Induced draft motor isn’t available until August 7th. Heat exchanger is in stock. Thanks, Nate. 3/26/25 replaced heat exchanger, inducer assembly and all necessary plates on heat exchanger. Cycled unit. Running as it should.

Preston R.
Performed plumbing maintenance. Completed maintenance checklists
Seth L.
NEED SETH TO RETURN TO REPLACE THE FLORESTONE GASKET. COLLECT PYMENT WHEN COMPLETE.

Zach S.
Verified part was ordered. ETA is showing Thursday the 27th

James B.
Ductwork cleaning

Zach S.
Leaking from seal on transmission. Sent estimate to customer. Will call in with any questions, going to think on repairs

DJ B.
Return to cut out saddle valve. Added T. Added ball valve for waterline leading to refrigerator. Added stop behind refrigerator and new icemaker line. Refrigerator is still not producing ice. Tested to make sure no leaks at this time.

Preston R.
Replaced thermostat & got water out of inducer. Furnace up & running

Jordan A.
No problems at this time. Hung out for 15 minutes. Slowly recovering as it should,