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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 Gahanna 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 Gahanna 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 Gahanna
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 Gahanna’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. Gahanna’s Top Heating Equipment Supplier
Furnace Repair Service in Gahanna
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 Gahanna 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 Gahanna 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.
Gahanna’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 Gahanna 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 Gahanna, 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.
Not truthful
Waymon - Gahanna, OH 43230
Tried selling what was not needed
Good experience
Robert - Gahanna, OH 43230
Quick service. Courteous and attentive to detail.
Excellent service
Gatsbys - Gahanna, OH 43230
Quick and professional
Great service! Helped out when it was over 90!
John - Gahanna, OH 43230
Woke up on a Saturday morning to find out my AC was not working. I bought this just last year. Turned out it was actually the furnace blower. Called the emergency dispatch and despite being full for the day they still came out on that same Saturday. They had to schedule the install of a new furnace on Monday and went and came back with a portable AC so it wasn’t unbearable. Was able to sleep while the rest of the house was 85 or hotter! They showed up Monday as planned and professionally installed it and cleaned up. Great experience!
Excellent service quick response time
Tracy - Gahanna, OH 43230
cameron c.
I arrived at the client's home to perform an air conditioning maintenance check. Upon arrival, I found that the unit was low on charge. I added 2 lbs of R410A refrigerant to bring the unit up to the correct charge. I also checked the unit's electrical connections and performed a safety inspection.
Jayden M.
I was called to a home to inspect a new heating and air conditioning system. The system was only a few years old, but the outdoor coil was very dirty and needed to be cleaned. The filter was also due to be changed soon. I cleaned the coil and replaced the filter, and the system is now running great.
Adam G.
This is an estimate to replace a capacitor. The capacitor is located in the electrical panel and is causing a power outage in the home. The estimate includes the cost of the capacitor and the labor to replace it. The capacitor is a critical component of the electrical system and should be replaced by a licensed electrician to ensure the safety of the home. I am a highly skilled and experienced home service professional. I have completed this estimate and can schedule the work for you. Please sign and accept the estimate if you would like to move forward with this. Thank you.
Adam G.
I received a call from a customer who needed a furnace estimate. I went to the customer's home and took measurements and photos of the existing furnace. I then used my knowledge of heating systems to provide the customer with an estimate for a new furnace. I explained the different types of furnaces available and the benefits of each. The customer decided to go with a high-efficiency furnace and I provided them with a quote for the installation. I also provided them with a list of recommended maintenance items to keep their furnace running efficiently.
Adam G.
I am a professional HVAC technician with over 10 years of experience. I recently completed a job for a customer who had a 20-year-old heating and air conditioning system. The system was in need of replacement due to its age and condition. I recommended replacing the system with a new, high-efficiency model that would provide better energy efficiency and lower utility costs. I also provided the customer with an estimate for the replacement, which included the cost of the new system, installation, and any necessary permits. The customer agreed to the replacement and scheduled the installation for the following week.
cameron c.
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 performed a thorough cleaning.
Adam G.
I am a skilled professional that works for a Dor-Mar Heating & Air Conditioning company. I recently completed a job where I cleaned condenser coils, changed filters, checked pressures before cleaning and after, and sent an estimate to replace a capacitor.
Seth L.
I was called to a home to perform maintenance on a 30-year-old 100-gallon Sepco tank. The homeowner wanted to flush the boiler, but I explained that boiler flushing is not included in the maintenance plan. The homeowner wanted to cancel the maintenance plan for this property.
cameron c.
Arrived, ran unit in AC and checked for a temperature split, checked amps and ohms on both units, check wiring, check pressures on outside unit, sprayed off coil, did radon test
Ron M.
System was running hot and high pressure on the condensing unit. Unit was clogged and not pulling enough heat. Cleaned condensing coil system up and running. Sending over estimate for 4 wifi stats
