Derrick provided excellent service. He was very professional and great to work with.
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Calob was very professional and did a great job on our annual heating inspection.
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James was professional and very efficient during our duct and dryer vent cleaning today. I especially appreciated his patience with our German shepherd dog. Scheduling was simple and clear and they got us in super quick. Definitely happy with this service today.
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I've been using Dor Mar for my business HVAC, and they always been great. So when my AC unit at my house went out, my first instinct is to get Dor Mar to my house. I lived kinda far out in Delaware, but they did not hesitate to send a technician out to me. They got the job done fast, professional and good price. Definitely would recommend Dor Mar to anyone!
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DorMar was great giving next day service on a frozen AC. Brandon took care on the inspection and gave me my options. I went with the lesser of two evils, but did enroll in their service plan. Great job guys!
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Was very informative and polite and was able to take care of our heating.
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Brad went above and beyond to take care of the issues I had. The previous installer (not Dor Mar) really didn’t do a good job and Brad took the time to remedy a few air leaks. Greatly appreciate him looking out for us.
Response from Dor-Mar Heating & Air Conditioning:
Thank you for the 5 star review, Anthony! We are thrilled to hear that Brad was able to fix your air leaks and went above and beyond for you. We are always happy to help and look forward to serving you in the years to come.
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Well truthfully I had a few issues in the beginning and they were honest mistakes. What I love the most is that Cindy and Drew were so customer focused they made everything right and I will absolutely recommend and use Dor Mar again. In a world of technology it’s the people that make the difference. Cindy is a great asset to your company, good employees are hard to find nowadays. Thanks again Cindy, you kept your word and backed it up by sending Drew. I debated even emailing my concerns but I’m glad I did. Cindy called me right away and stated she would make good on her and boy did she. I’m not use to that with other company’s and typically write them off. I’m glad my co worker recommended Dor Mar and I will for sure recommend them myself. Thanks for all your help Cindy!!!
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Well truthfully I had a few issues in the beginning and they were honest mistakes. What I love the most is that Cindy and Drew were so customer focused they made everything right and I will absolutely recommend and use Dor Mar again. In a world of technology it’s the people that make the difference. Drew is a great asset to your company, good employees are hard to find nowadays. Thanks again Drew for your persistence, I can finally sleep in my bedroom and not hear that clanging, uhhh I can’t thank you enough. It was great talking with you, you’ll do well with your work ethic and attitude!
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Dormar came through for me when we were really in a bind. They worked with Columbia Gas schedule to complete the work on a furnace. Willie is very experienced and service is his forte. We plan to use Dormar for annual service and any replacements in the future, highly recommend them for HVAC service.
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Brian showed up on time and did an outstanding job. His knowledge and professional attitude made him a great asset. He was friendly and got the job done fast. Thanks for your help.
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During the inspection, I discovered that the furnace lacked a filter, which is crucial for efficient operation and air quality. I recommended a duct cleaning service to ensure the system operates smoothly and safely. This cleaning would remove accumulated dust and debris, enhancing overall air quality and preventing potential system failures. I provided a detailed estimate for the duct cleaning service.
Service technician called out to give estimate on installation of gas hot water tank in Delaware OH
SYSTEM NEEDS NEW BLOWER WHEEL AND MOTOR. SENT OVER ESTIMATE AWAITING APPROVAL
Completed an annual furnace maintenance, we cleaned off your flame sensor and verified multiple components clean operation. We did find your air filter to be dirty enough to make an impact on efficiency. We are recommending you change out your air filter soon to avoid issues with your furnace.
Unit was overheating, client recently had floors redone, and stated that after floors were redone system would run for a few minutes and then shut off. Found system to be overheating, checked gas pressures and high staged. Gas pressure was well above manufacturers rating, lowered both high and low stage gas pressures to be within manufacturers rating and verified temporize within manufacture specification before clearing unit for operation.
Client stated the system would run for a little while and then turn off, and then wouldn’t turn back on until an amount of time had passed. Searching through the code records on your system, we found that your unit has experienced overheating recently, which is why the system would not come back on even after you guys cycled the power. While I was in your home, I measured heat rise and noticed it to be high, I took a look at your vents and recognize that every vent was open, except for one in the laundry room, and one in a bedroom. I took a look further down at your system and found multiple dampers to have vibrated loose and closed themselves, which is where the suspected overheating has been caused due to high static pressure. After remedying the dampers, your heat rise, lowered to be within specification, and your system is no longer overheating. We are recommending that you clean your ducts due to client in the home smelling soil coming from her vents. Keep in mind, we attached in
HAD TO SET GAS PRESSURE ON UNIT. SYSTEM UP AND RUNNING.
This is an estimate to replace the ignition control board and blower motor in a home. The cost of the job is $1,000.00, and we require half of the cost to be paid upfront. We accept credit cards, but there is an additional 3% processing fee. If you would like to move forward with the estimate, please let me know. Thank you, Adam.
Technician called out to give estimate on a new install of a humidifier for his home in Delaware OH
INSTALL INGNITION CONTROL BOARD AND BLOWER MOTOR IN COMMERCIAL ROOF TOP UNIT IN DELAWARE OHIO
commercial furnace not working in Delaware Ohio
I was called to a home to inspect a faulty ignition control board. After inspecting the board, I provided an estimate for repairs. The client was pleased with the estimate and scheduled the repairs.
I was called to a home to replace a humidistat and install a transformer for a humidifier. The unit was installed on 11-21-2025 and is still under warranty. The parts and labor are covered under the warranty.
