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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
Why Should Canal Winchester 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 Canal Winchester 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 Canal Winchester
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 Canal Winchester’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. Canal Winchester’s Top Heating Equipment Supplier
Furnace Repair Service in Canal Winchester
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 Canal Winchester 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 Canal Winchester 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.
Canal Winchester’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 Canal Winchester 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 Canal Winchester, OH
Customers say: The overall sentiment of the reviews is positive, with many customers expressing satisfaction with the services provided by Dor-Mar HVAC LLC. The positive reviews frequently mention friendly and helpful staff, efficient and timely service, and reasonable pricing. Customers also appreciate the professionalism, knowledge, and courtesy of the technicians. However, there are also negative reviews that mention issues with scheduling, unprofessional behavior, and lack of urgency in resolving problems. Some customers also express dissatisfaction with the pricing and the quality of the work performed. It is important to note that the negative reviews are fewer in number compared to the positive ones, and the overall sentiment is still positive.
Friendly, honest, knowledgeable. Great service.
Patrick - Canal Winchester, OH 43110
Canal WinchesterOH43110 39.77-82.74




Great Service and was very help full with questions I had .I
Robert - Canal Winchester, OH 43110
Trevon was very nice and took his time .Put request in for other jobs to be done .
Canal WinchesterOH43110 39.87-82.8275



Great service
GG - Canal Winchester, OH 43110
Canal WinchesterOH43110 39.8475-82.805




Excellent
Matt - Canal Winchester, OH 43110
Canal WinchesterOH43110 39.84-82.8175




Highly recommend
Mike - Canal Winchester, OH 43110
Trevon was very helpful—taking his time to answer every question we had and going over options. Went above and beyond to get our furnace running. Would highly recommend!
Canal WinchesterOH43110 39.8975-82.8125



Easy and awesome!
Krista - Canal Winchester, OH 43110
Asked for a check on our furnace. It was easy to schedule and the service person, Wes, was at my door the next day! Figured out my issue pretty quick and I was able to get back to my day.
Canal WinchesterOH43110 39.8975-82.8475



Doesn't make me feel stupid!
Kim - Canal Winchester, OH 43110
Trevon is great - he's always very kind and informative without talking down to me or acting like I'm wasting his time. He's really a gem. Fixed my issue quickly and is always professional.
Canal WinchesterOH43110 39.875-82.8225



Excellent Service
Dale - Canal Winchester, OH 43110
Trevon was great to work with
Canal WinchesterOH43110 39.7875-82.8275



Won’t use anyone but Dor Mar
Kim - Canal Winchester, OH 43110
Bryson is great. He seems to really know his stuff and I feel confident that he did an excellent job. He and his partner even came early because I had mentioned to them I needed to make a community visit for work. He’s focused and has been here before so felt very comfortable.
Canal WinchesterOH43110 39.875-82.8225



Amazing service!
Krista - Canal Winchester, OH 43110
Thanks for doing a great job Khyrenn! You were informative, thorough, and quick. We appreciated all the work you did and cleaned up everything. We are so happy with the work you provided.
Canal WinchesterOH43110 39.8975-82.8475



cameron c.
Checked pressures and found unit had no refrigerant in systems, put 4lb of r410a in system h it running as should

Trevon S.
Customer stated unit would run and not drop below 72. Everything was running properly. Checked refrigerant levels and they were spot on. Went in attic and found fresh air intake on return. Took off fresh air intake and sealed up with foil tape. Let customer know to keep and eye on it.
Gregory B.
Need to return to install a new run capacitor and fan motor. Put on a new45-5 run cap and hard start to get them by until we come out and install the new run capacitor. The fan should be under warranty but they will need to pay for the run capacitor. Please return the current run cap back to g2 after completing job.

Ron M.
Units are in great shape. One unit needed a contactor(Patrick approved) replaced contactor. Both systems are operating within spec. Job complete

anthony p.
job complete

Zach S.
Replaced parts

DJ B.
Found big belly at about the end of the line going to storm drain. Found collapse close to septic tank itself. Customer wants to dig up close and replace then camera and see if rest of line is still good. Wants to do spot repair. But customer also acknowledge that if any more line is broken needs to be repaired. Follow up for Jordan
cameron c.
Arrived, ran unit and AC and checked for a temperature drop, check ohms on both units check wiring on both units, check pressures on outside unit,

James B.
I installed new fan motor

Zach S.
Leaking from turbidity sensor and wash motor. Needs new wire harness as well, harness is corroded from leak