Farnen & Dermer Inc.

Owings Mills, MD · HVAC contractor

Rating
4.8/5
★★★★★ 4.8
Reviews
20
Rank in Owings Mills
#17
of 82 home service pros
City Percentile
54%
rating percentile
Address
Farnen & Dermer Inc., 10500 Reisterstown Rd, Owings Mills, MD 21117
Phone
(410) 902-0020
Website
www.farnendermer.com

Farnen & Dermer Inc. is a home service pro located in Owings Mills, MD. It is one of 82 home service pros listed in Owings Mills. Its 4.8-star rating is above the Owings Mills city average of 4.5 stars. It ranks #17 of 82 home service pros in Owings Mills. There are 10 photos associated with this location.

About Farnen & Dermer Inc.

We are Maryland's oldest and most reliable air conditioning, heating, and plumbing service provider. We've been in business since 1902 and are a 5th generation family business!

Customer Reviews

★★★★★ 5.0 Ed R · Oct 2025

Our HVAC system is nearly 30 years old and showing its age. Have 3 companies gave their qoutes and Farnen and Dermer has the most appealing package in price and type of equipment. Charlie checked our system and made recommendations, financing options, explained the BGE electrification rebates, federal tax credit benefits of a new system. Caleb and Mike performed the installation , answered questions and concerns, preventive maintenance, warranties and gave a thorough “tutorial” on the thermostat. Oh and they even shipped a box of goodies. Seriously who does that nowadays. Overall excellent customer service, knowledgeable and competent technicians, highly recommended company.

★★★★★ 5.0 Tracey Pryce · Oct 2025

We made an early morning call to Farnen & Dermer due to a leaking hot water heater. The gentleman I spoke with was pleasant and quickly responded to our emergency. Within less than an hour, we had a wonderful technician named John to come assess the issues. After that, a very reasonable price was quoted, and we quickly accepted to get the job started. Shortly after that, Mike and James arrived on the scene to begin to install. They were professional, extreme knowledgeable, and very funny. It was a pleasant service call and I highly recommend anyone needing services to reach out to them immediately. You will not be disappointed!! Thank you again for a very pleasant experience and providing exceptional customer service!!!

★★★★★ 5.0 Chuck Dierbach · Jan 2026

This company was strongly recommended by a friend. I can pass along that strong recommendation. This is the kind of family-run company that you hope to find. We first had one of those larger companies (that have locations up and down the East cost) come and give a two-and-a-half hour sales pitch. Being able to talk just 15 minutes with one of the owners of this company immediately made the distinction clear. Rather than sitting through a slide show of how great the company is, the discussion was strictly about the technical aspects of what we needed. They were able to install the furnace the same day, and spent seven hours doing so. There was no rush to complete the job, and they were very patient in answering all our questions. We have complete confidence in the installation, and feel ve

★★★★★ 5.0 Terri Williams · Feb 2026

Farnen and Dermer is my go to company for my home. They always offer quick punctual service, answer all of my questions, and make sure that I understand exactly what is being done. I recently had a new thermostat and new hot water tank installed. The technicians are very polite and patient with me and my 87 year old mother asking questions. I appreciate the thorough answers. As a single women I feel safe and comforted by receiving a text with the technicians name and picture, so I know who is coming to my home. Their service is second to none.

★★★★★ 5.0 Courtney Lynch · Feb 2026

My heat went out last week, which was one of the coldest weeks recorded. Luckily my coworker recommended this company to me. Charlie came out that evening to check the problem. He walked me through the issues and answered all of the many questions I had; I was incredibly impressed with his friendliness and reassurance. James came out a few days later and worked quickly to get a new unit in place. He showed up at 7:30 and by 10am it was up and running. He talked me through final steps and made recommendations on how to keep it running well so there are no further issues. I’m absolutely satisfied with the work and grateful to Charlie and James for a quick and painless update. Will recommend to everyone I know. Thank you, James and Charlie!

Services

HVAC contractorAir conditioning contractorAir conditioning repair serviceHeating contractor

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This listing is informational. Contact the business directly to verify credentials, services, and availability.