Farnen & Dermer, Inc.

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Farnen & Dermer Inc. has been family-owned and operated for five generations. Its history dates back to 1902 when Leon Dermer opened its doors in the Pimlico area of Baltimore, Md. His son, Harold continued the family tradition, eventually taking over the business. He passed the company to his son Frank who, in turn, handed the keys to his two sons, Jay and Ed. Great-great-grandson Zack is the latest generation to join the company. Over the years, Farnen & Dermer Inc. has continued to serve the Baltimore and surrounding areas with the same level of excellence Leon established back in the early 20th century.

Superiority in customer service is a priority, and Farnen & Dermer Inc. aims to offer the best solutions for its customers’ heating, cooling and plumbing needs. All company technicians are factory-trained, state-certified and licensed. Each employee is highly knowledgeable and able to provide high-quality service to Trane equipment. With each checkup, technicians will not only fix any problems, they’ll do a checkup to ensure systems are working efficiently, helping their customers to save money on their electric bills. Their full-range of services include air conditioning and furnace maintenance (both gas and oil), inspections, replacement parts and new installations. Other services they offer are repairing and/or replacement of heat pumps, boilers, humidifiers, thermostats, air cleaners, air scrubbers and any other HVAC-related need. Additionally, the company provides plumbing services including water heaters (tank and tankless), toilet repairs and installs, faucet repairs and installs, sump pumps, garbage disposals, drain cleaning and sewer and water line excavation.

Farnen & Dermer Inc. proudly serves the entire Baltimore metropolitan area for both routine and 24/7 emergency service, keeping its customers comfortable and safe. 



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Wells Fargo Financing


Owings Mills, Maryland 21117


Nexia Installer
NATE Certified
Charter Member
24/7 Emergency Service
Nexia Diagnostics
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