CALL FOR SERVICE: (585) 271-8888



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Why Choose John Betlem

100% Satisfaction Guaranteed

Every job is covered by a top-notch warranty that is backed by 75 years in the business. If you are not completely satisfied at any time within the first year of owning your home comfort system, we will remove the system and cheerfully refund the entire amount of the contract within 30 days. Whether it’s the equipment, the installation, or even our people, we stand by our promise. To top it off, almost all repairs are backed by a minimum one-year warranty!

Unbeatable Customer Service

Each time you call, you’ll be greeted by a friendly, passionate customer service professional ready to assist. Our technicians and installers operate with the utmost professionalism, arrive at your door in visible lettered trucks and wearing company uniforms, and all are dedicated to assisting you as quickly and efficiently as possible.

24-Hour Emergency Service Without Diagnostic Fees

Our Advantage Club members benefit from off-hour emergency services by not having to pay any diagnostic fees. Always speak to a live operator when you call—even after regular business hours, no need to leave a message. Our HVAC technicians are on hand all year round to assist you with any heating or cooling equipment issues at any time.

Innovative Solutions

We don’t cut corners. John Betlem offers solutions for anything from a simple repair to a complex installation: Indoor air quality, humidity control, hot and cold spots, air conditioning systems, heating systems, custom designed duct work, zoning systems, home energy audits and standby generators. As our customer, we promise to provide you with the best possible solution and fair, competitive pricing.

In-House Training Center

Our training facility is equipped with state-of-the-art HVAC equipment and the most current technology available. We provide ongoing training for all employees, both in the field and in the office to remain up-to-date with the latest innovations to provide you with the right solution, every time.

Passionate Team Members

Our team is made up of happy people who care about serving our customers. Whether scheduling an appointment, changing a filter or installing a new unit, each of us is willing to do whatever it takes to ensure total customer satisfaction.

State-Of-The-Art Equipment

Our comfort solutions combine the latest technology, best warranties, and newest features and benefits. We proudly offer the highest quality equipment from trusted manufacturers.

Fully Equipped and Ready To Serve

We maintain a fleet of modern rolling warehouses, engineered and equipped to resolve almost every service call or fix almost any problematic system in one trip.

Family Owned and Operated for Over 75 Years

The fourth generation of the John Betlem family is responsible for the day-to-day operation of our business. Our name goes on every job, and that is what drives us to be the best—Guaranteed!

Welcome to John Betlem Heating and Cooling, Inc.

We are pleased to announce that Lang Heating and Cooling has merged with John Betlem Heating and Cooling, Inc. and we are now conducting business together under the name John Betlem Heating and Cooling, Inc.

John Betlem Heating and Cooling, Inc. has been a family owned and operated business serving the Rochester area for over 75 years, and we proudly hold similar values and philosophy for doing business that you have come to expect with Lang Heating and Cooling.

If you are a Lang Heating and Cooling customer, we will honor all present Service Plans with the exception of oil, as well as all warranties on previously installed HVAC equipment from Lang Heating and Cooling. Though we will now operate as one company, you can rely on the same professional working relationship you have always enjoyed.

If you have any questions or concerns, please call us at 585-271-8888. For those of you in the 315 area, please be sure to include 585 to ensure we receive your call. We look forward to providing you with the excellence and quality you deserve!

Thank you,

Kathy Betlem, Vice President