228 E Main St
Newark, OH 43055
740-345-6639

Our Top Cities


Local Reviews
for columbus, oh

Rated 4.9 out of 5 stars based on 431 customer reviews

Great work!

Friendly service and avoided a major repair.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Job done well

Completed job as stated Picked up all trash and tested equipment

  • Overall Experience
  • Quality
  • Price
  • Convenience

Exceptional HVAC Service by Preston Richard

Exceptional HVAC Service by Preston Richard I recently had the pleasure of working with Preston, an HVAC technician who truly went above and beyond. From the moment he arrived, Preston was courteous and professional, greeting me with a friendly smile and a respectful attitude. He quickly assessed the issue with my system, demonstrating impressive knowledge and confidence in his diagnosis. What stood out most was his speed — he efficiently completed the repairs without sacrificing quality, ensuring my HVAC system was up and running in no time. Preston’s combination of politeness, expertise, and promptness made the entire experience hassle-free and reassuring. I highly recommend his services to anyone in need of reliable and professional HVAC support. Thank you Preston

  • Overall Experience
  • Quality
  • Price
  • Convenience

Convenient service

Good complete service

  • Overall Experience
  • Quality
  • Price
  • Convenience

Always a pleasure to work with!

  • Overall Experience
  • Quality
  • Price
  • Convenience

Excellent service!

I appreciate DorMar’s maintenance program. With three systems, something can always go wrong, so their program gives me peace of mind. The technicians are respectful and always happy to explain their work.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Excellent Service

  • Overall Experience
  • Quality
  • Price
  • Convenience

Excellent

Very professional

  • Overall Experience
  • Quality
  • Price
  • Convenience

Air conditioner install

The technicians arrived as scheduled and the air conditioning system was installed within the time period specified in the quote. Both technicians cleaned their areas before leaving and explained the work that was performed

  • Overall Experience
  • Quality
  • Price
  • Convenience

Good service.

Very polite and cool dude.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Good serviceman. Honest and sincere. I respect his honesty.

Preston arrived for an Annie’s service call. He went right to work checking the furnace and AC. He advised me that the AC was at the end of its life and gave me options. I respected his honesty with the various options.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Owner

  • Overall Experience
  • Quality
  • Price
  • Convenience

Excellent service

Very kind and knowledgeable. Came out on one of hottest days of the year to check out our air conditioner. Wonderful to work with.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Would like a call back

Have met brad previously and seems knowledgeable and straightforward. However The information he provided was not accurate, or did not match up to the info communicated from previous tech 2 weeks ago. Would like a call back please.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Efficient and quality service

Trevon sorted out my AC issue efficiently & had the part replaced, job well done. Excellent service, knowledgable, thank you, Trevon.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Job Locations
for columbus, oh

Adam G.

Adam G. Job Checkin

I am a highly skilled and experienced home service professional. I recently completed a job where I changed filters and tightened belts on a residential heating and cooling system. This involved removing the old filters, cleaning the coils, and replacing the belts. I also checked the system for any leaks and made sure it was operating efficiently.


Steve S.

Steve S. Job Checkin

I was called to a home to repair a central air conditioning unit that was not cooling. Upon arrival, I found that the thermostat was programmed backwards, causing the unit to run continuously. I diagnosed the issue and installed a new board system, which resolved the problem. The customer was very pleased with the service and thanked me for my help.


cameron c.

cameron c. Job Checkin

I was called to a home to install a new blower motor. The old motor was not working, so I replaced it with a new one. However, the new motor was not working either. I diagnosed the problem and found that the control board was faulty. I replaced the control board and the blower motor started working again.


Adam G.

Adam G. Job Checkin

This is an estimate to replace the blower wheel on a residential heating and cooling system. The labor is included in the estimate, and the parts are available. If you would like to move forward with this estimate and accept the terms, we will schedule the work. Thank you, Adam.


Calob B.

Calob B. Job Checkin

I was called to a home to address a problem with the heating and air conditioning system. Upon arrival, I found that the system was not producing enough airflow and the blower speed was too low. I added more airflow to the system and raised the blower speed, and the system is now running great.


James B.

James B. Job Checkin

I installed a roof top unit and a tenor heater for a customer. I removed the old unit and installed the new one, ensuring it was properly secured and connected to the electrical system. I also installed a tenor heater and connected it to the gas line. I tested the unit to ensure it was working properly before leaving the job site.


Calob B.

Calob B. Job Checkin

I am a skilled professional that works for a Dor-Mar Heating & Air Conditioning company. I received a call from a customer who reported that their air conditioner was running good but they could not find a leak. I arrived at the customer's home and performed a thorough inspection of the air conditioner. I checked the refrigerant levels, inspected the condenser coils, and checked the evaporator coils for any signs of leaks. After completing the inspection, I found that the air conditioner was not leaking. The customer was happy with the results and thanked me for my help.


cameron c.

cameron c. Job Checkin

I arrived at the customer's home and performed a comprehensive inspection of their air conditioning unit. I checked the temperature split, amps and ohms, wiring, pressures, and radon test. I also sprayed off the coil and checked for any leaks.


cameron c.

cameron c. Job Checkin

I arrived at the customer's home to perform an air conditioning service. I ran the unit in the air conditioning mode to check for a temperature split. I also checked the amps and ohms of both the indoor and outdoor units to ensure they were functioning properly. I checked the wiring and pressure on the outside unit to ensure it was working correctly. I also performed a radon test to check for any potential radon gas in the home.


Ron M.

Ron M. Job Checkin

I am a highly skilled home service professional who recently completed a job for a client. The job involved installing a new water heater in their home. I arrived at the client's home on time and began the installation process. I worked diligently to ensure that the installation was done correctly and efficiently. I also took the time to explain the features and benefits of the water heater to the client, ensuring that they were satisfied with their purchase. After the installation was complete, I cleaned up the work area and left the client with a satisfaction guarantee. The client was very pleased with the job and expressed gratitude for my professionalism and expertise.


cameron c.

cameron c. Job Checkin

I arrived at the customer's home and performed a thorough inspection of their air conditioning unit. I checked the temperature split, amps and ohms, wiring, pressures, and radon test. I also sprayed off the coil and checked the unit's performance.


Brad H.

Brad H. Job Checkin

I am a professional HVAC technician who works for a company called Dor-Mar Heating & Air Conditioning. I was recently assigned to inspect a home in the area that was having issues with its heating and air conditioning system. Upon arrival, I performed a thorough quality inspection of the system, including checking the electrical connections, refrigerant levels, and airflow. I discovered that the system was not functioning properly due to a fused disconnect. I immediately notified the home owner of the issue and scheduled an appointment with the installers to replace the fuse. The installers arrived this morning and replaced the fuse, and the system is now functioning properly. The home owner was very pleased with the service and thanked me for my help. I am proud to be a part of a company that provides quality HVAC services to our customers.


Preston R.

Preston R. Job Checkin

I arrived at the client's home to perform a routine maintenance check on their air conditioning unit. I ran the unit in ac mode to ensure it was functioning properly and checked for any temperature splits. I also checked the amps and ohms of the unit to ensure it was operating within the manufacturer's specifications. I then checked the wiring and pressure on the outside unit to ensure it was functioning correctly. Finally, I performed a radon test to ensure the indoor air quality was safe.


Ron M.

Ron M. Job Checkin

I am a professional HVAC technician with over 10 years of experience. I recently completed a job at a customer's home in the city of New York. The customer had a problem with their heating and air conditioning system. I arrived at the customer's home and assessed the situation. I found that the customer's heating system was not working properly. I diagnosed the problem and provided the customer with a detailed estimate for the repairs. The customer agreed to the estimate and I scheduled the repairs for the next day. I arrived at the customer's home the next day and completed the repairs. The customer was very satisfied with the work and I received a positive review from the customer.


cameron c.

cameron c. Job Checkin

Arrived at the home, went to the furnace and found two dirty filters in the unit. I took the filters out and ran the unit in the air conditioning. I noticed that the air conditioning had no power. I checked the breaker and found that it was tripped. I reset the breaker and went back to the air conditioning unit. I checked the pressures and found that the pressures were high. I sprayed off the coil to remove any dirt or debris. I checked the compressor amps and found that the compressor was pulling high amps. The compressor is going out and needs to be replaced.