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Not All Heroes Wear Capes
Your CLIMATE HERO is now your:
- HEATING
- COOLING
- PLUMBING & DRAIN CLEANING
- ELECTRICIAN
- APPLIANCE REPAIR
- WATER PURIFICATION
- WATER HEATER
- RADON
HERO
At Dor-Mar, we believe in everyday heroes.
Whether it’s restoring your home’s heat on a frigid winter night, fixing a leaky pipe before it wreaks havoc, or ensuring your appliances run smoothly, our team is here to save the day.
With decades of experience and a commitment to top-notch service, Dor-Mar is your trusted partner in comfort and reliability. From quick fixes to comprehensive solutions, we proudly wear the badge of “your climate hero.”
Because when it comes to your home, you deserve heroes who show up, roll up their sleeves, and get the job done right. No capes needed—just expert service and care.
PRODUCTS & SERVICES
Drain Cleaning
& Purification
Repair
Quality
Why Should Granville Homeowners Choose Dor-Mar for Their Heating, Air Conditioning, Plumbing, Electric, Appliance Repair and Radon Services?
Since 1962, Our Customers Have Been Experiencing Our Fast, Friendly, Professional 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 solution for your questions.
See What Our Satisfied Customers Are Saying…
We've been seriving loyal customers since 1962.
Heating, Air Conditioning, Plumbing, Electric, Appliance Repair,
Water Filtration, and Radon Services You Can Rely On
Serving Granville and Central Ohio Since 1962
Dor-Mar Heating, Cooling, Plumbing, Electric, Appliance, Radon has earned a reputation as Central Ohio’s most reliable, trustworthy home services contractor. With offices and service technicians available throughout Central Ohio, with locations in Newark, Columbus, Buckeye Lake, Dublin, Grove City, Pataskala, Reynoldsburg, Westerville, and Zanesville. We also have specialty locations for our Plumbing + Water Treatment services, Appliance Repairs, and Radon testing and mitigation services. See direct numbers below.
And now, we service the Southwest Florida area with locations in Marco Island, Naples and Fort Myers.
We bring friendly, family-oriented service to your door, often the same day.
Starting out as a small door-to-door company, 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 best HVAC service possible. Our 30+ employees are passionate about taking care of your needs in the fastest, friendliest, most efficient way possible. Our service technicians, installers, customer service representatives, office personnel and management attend frequent training, ensuring we stay ahead of updates in the ever-changing home services field.
As a result of our hard work and dedication to customer service, Rheem & Coleman recently recognized us as a “Top Team Contractor.” We offer free estimates on new equipment, and provide customers with 24-hour service.
Call Dor-Mar TODAY for SERVICE TODAY, or use the convenient BOOK NOW button here on our website to schedule a service appointment for your home’s air conditioner, heat pump, furnace, plumbing, or appliance repair.
Trying to decide if you need new HVAC equipment? For a free, no-obligation consultation to determine the perfect system for your home or business, regardless of size, call today.
We look forward to adding you to our long list of satisfied customers.
Dor-Mar! Dor-Mar! Your Climate Hero!
HVAC Contractor in Granville
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 Granville’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. Granville’s Top Heating Equipment Supplier
Furnace Repair Service in Granville
Dor-Mar is an award-winning Furnace Repair Service in business since 1962. We’ve been providing professional, timely heater repair and maintenance services to Granville 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 Granville 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.
Granville’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 Granville Ohio
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.
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Local Reviews
for Granville, OH
Customers say: The overall sentiment of the reviews is positive, with many customers expressing satisfaction with the services provided. Positive reviews frequently mention friendly and professional technicians, timely responses, and effective solutions to HVAC issues. Customers also appreciate the professionalism, knowledge, and efficiency of the staff, as well as the fair pricing and excellent customer service. Negative reviews are present but generally have fewer mentions. Common issues include scheduling mix-ups, unexpected charges, and dissatisfaction with maintenance agreements. However, the majority of customers still express overall satisfaction with the services provided.
Technician was very knowledgeable and professional.
Rich - Granville, OH 43023
Excellent
Bob - Granville, OH 43023
Super all the way around. Thanks.
Great technician
Jacob - Granville, OH 43023
Zach diagnosed the issue on our LG refrigerator quickly and the repair price is far better than purchasing a new refrigerator. The only drawback is Zach is so awesome he’s booked solid for a week, so I will patiently wait until he’s available to complete the repair. I highly recommend him.
Thankful for Dor Mar!
Melissa - Granville, OH 43023
Same day appointment on a “high heat index” day for my ac! Quick repair and saved the day.
Excellent service
Erin - Granville, OH 43023
Excellent Service
Colin - Granville, OH 43023
Thorough, very competent, great work
Air Conditioning Annual Service
Jan - Granville, OH 43023
Excellent!
Charles - Granville, OH 43023
Steve was polite, efficient and timely!!
Duct Cleaning
Three Tigers Brewing Company - Granville, OH 43023
Excellent
Rick - Granville, OH 43023
Very professional and courteous.
Calob B.
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Aaron C.
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Calob B.
I was a home service technician who was responsible for maintaining and repairing various household appliances. One day, I received a call from a client who reported that their air conditioner was not cooling properly. I arrived at the client's home and performed a thorough inspection of the unit. I found that the condenser coil was dirty and clogged with debris, which was preventing the unit from cooling effectively. I cleaned the coil and replaced the air filter, which resolved the issue. The client was very satisfied with the service and thanked me for my prompt and efficient service.
Zach S.
I was called to replace the evaporator fan motor in a residential home. The motor had failed and was causing the air conditioner to not function properly. I removed the old motor and installed a new one, ensuring that it was properly connected and secured. I also checked the electrical connections to ensure that everything was working correctly. After completing the replacement, I tested the air conditioner to ensure that it was functioning properly. The homeowner was very satisfied with the work and thanked me for my help.
Jayden M.
I performed routine maintenance on a Coleman air conditioning system. The unit was running smoothly with no performance issues. The refrigerant levels were checked and were within the optimal range, indicating that the system was properly charged and cooling effectively. The air filter was clean and allowing for proper airflow throughout the system. All electrical components, including the capacitor, contactor, and wiring, were inspected and tested, and everything was in excellent condition. Overall, the system was clean, efficient, and operating at peak performance.
Derrick B.
I performed routine maintenance on a client's HVAC system, which included checking the refrigerant levels and pressure. I found that the system was hitting the low-pressure alarm, indicating a potential refrigerant leak. I discussed the issue with the client and recommended replacing the refrigerant to resolve the problem. The client decided to take some time to think over the recommendation and decided not to move forward with the replacement at this time.
Brad H.
I am a highly skilled and experienced home service professional. I recently completed a job that involved updating the files for the furnace and checking the ductwork. This involved inspecting the furnace for any signs of damage or wear and tear, as well as checking the ductwork for any leaks or damage. I also replaced the air filter and cleaned the furnace vents to ensure optimal performance.
Preston R.
I am a home service technician. I performed maintenance on an air conditioner. I completed a maintenance checklist and sold duct cleaning services.
Jayden M.
I am a home service technician, and I recently completed an AC maintenance job for a client. The job involved inspecting and servicing the air conditioning system, including cleaning the coils, filter, and other components, checking the refrigerant levels, and testing the electrical components. Upon inspection, I found that the Freon levels were within the correct range, and all electrical components, including the capacitor and contactor, tested in good condition. The system was also clean, with no visible signs of damage or wear. During the maintenance process, I also performed a thorough cleaning of the evaporator coil, condenser coil, and air handler. This helped to improve airflow and cooling performance, and also helped to remove any debris or dust that may have been causing the system to operate inefficiently. In addition, I checked the thermostat and made any necessary adjustments to ensure that it was operating correctly. I also tested the system's pressure and temperature
Jayden M.
I am a highly skilled home service professional. I recently completed a job where I cleaned the AC unit's outdoor coil and plants off the AC. I also replaced the filter and checked the Freon levels. The system was pulling good amp draws across the system.
