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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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FOR REVIEWS FIND US ON
Local Reviews
for Granville, OH
Customers say: The reviews exhibit a predominantly positive sentiment, with recurring themes of satisfaction, professionalism, and courtesy. Customers express gratitude for the technicians' expertise, promptness, and ability to explain issues clearly. Positive remarks often mention the technicians' friendliness, efficiency, and willingness to go the extra mile. There are also mentions of competitive pricing and excellent service. However, a few negative reviews exist, primarily concerning pricing and communication issues. Overall, the reviews suggest a positive experience with the company, with many customers expressing satisfaction with the services provided.
Great service
Doug - Granville, OH 43023
Brad is great. Polite and timely. Does good work and answers my questions fully.
Great attention to detail to find the source of the problem.
Matthew - Granville, OH 43023
Excellent Service
Margaret M - Granville, OH 43023
Trevon Showman was prompt, polite, knew his job, and relayed results quickly.
Estimate for system replacement
Mary - Granville, OH 43023
Very helpful and informative
new faucet and shut offs installed
Bob - Granville, OH 43023
👌
Tom - Granville, OH 43023
Efficient, on time and friendly. Give him a raise.
AC annual service
Bob - Granville, OH 43023
Couldn’t ask for more. Knowledgeable, professional, courteous, personable.
Great service, very polite.
Courtney - Granville, OH 43023
Jayden provided great service and a as very polite. He even covered his shoes or took them off when coming into the house. Thank you!
Technician was very knowledgeable and professional.
Rich - Granville, OH 43023
Excellent
Bob - Granville, OH 43023
Super all the way around. Thanks.
anthony p.
I was called to a home to clear a clogged tub drain. I used a needle nose to clear out the strainer and remove the hair and soap scum.
Aaron C.
I recently completed a home service job that involved servicing two units. Upon arrival, I observed that both units were running fine with no apparent issues. I thoroughly inspected each unit, checking for any signs of malfunction or damage. I replaced the filters, cleaned the coils, and tested the electrical connections. I also provided valuable maintenance tips to ensure the units continued to operate efficiently. I am pleased to report that both units are now running smoothly and efficiently.
Aaron C.
I was called to a home to replace a power board and pcb. Upon arrival, I found that one of the heads was not communicating. I replaced the power board and pcb and the power was restored. The other head unit was not communicating, so I ordered indoor controls boards to be installed.
Steve S.
I am a highly skilled home service professional. I received a call from a customer who was experiencing issues with their heating system. Upon arrival, I discovered that the Bosch system was not working. I checked the system and found that there were no recent codes on the Bosch system. I then called the customer and informed them that the system was working at this time and that I had to leave it all alone so we could check to see if it was coating out on the furnace or the Bosch system. I also informed them that there were no recent codes on the Bosch system.
Kevin C.
Replaced oven
Calob B.
I was called to a home to fix an AC unit that was not cooling properly. Upon inspection, I found that the AC was not producing enough cool air, the blower speed needed to be adjusted, and the Freon levels were overcharged. I replaced the faulty components and recharged the system with the correct amount of Freon, ensuring that the AC unit was running efficiently and effectively.
Trevon S.
I was hired to rerun a thermostat wire with shielded wire to prevent communication failure. The job required me to remove the old thermostat wire and replace it with a new one. I also had to ensure that the new wire was properly shielded to prevent interference with other electrical signals.
anthony p.
New tank estimate
Travis V.
I am a home service technician and I recently completed a plumbing maintenance job for a client. The job involved flushing the tankless water heater, which went smoothly without any issues. The radon test result was 2.6, which is within the acceptable range. The water lines are made of copper, and the drain lines are PVC. The plumbing system appeared to be in good condition, and I did not notice any broken codes. I am confident that the system is now ready to provide reliable service for the client.
Brad H.
I am a skilled professional that works for a Dor-Mar Heating & Air Conditioning company. I recently completed a job for a client who had a central air conditioning unit that was not cooling properly. After inspecting the unit, I determined that the condenser coil was dirty and clogged with debris. I cleaned the coil thoroughly, using a specialized cleaning solution and a brush, and then reinstalled the unit. After completing the job, the client was happy to have their air conditioning unit working properly again.
