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Gateway Heating & Cooling is a family owned and operated business founded on the basic principles of honesty, integrity, and excellence. It has always been our goal to offer our customers exceptional services at the best possible price, and we will not settle for less than total customer satisfaction. We operate out of Mount Sterling, in Montgomery County, Kentucky.

At Gateway Heating & Cooling, we pride ourselves in being able to take great care of your heat pump, air conditioner, furnace, or any other type of system you may have in order to keep you comfortable. Whether you are looking for heating repair, air conditioner repair, new installation, or seasonal maintenance, we have you covered.

Keep Your HVAC In Top Shape

HVAC equipment.

#1: NOW

  • Buy a high-efficiency pleated air filter.
  • Keep AC and heat units free of leaves, pollen, and grass.
  • Clear two feet of space around outdoor AC and heat units.


  • Inspect refrigerant lines each month.
  • Replace your air filter at least every 90 days.
  • Summer: turn off water to the furnace humidifier.
  • Fall: replace the humidifier filter and turn on water.


  • Replace your carbon monoxide detector battery.
  • Ensure outdoor AC unit is on firm and level ground.
  • Clear AC condensate drain with a bleach/water mixture.

What Our Customers Are Saying About Us

Ductless Mini-Split Installation in Owingsville, KY 40350

“Josh and John and there crews have done several jobs for us over the years. The professionalism and knowledge that this company performs is unmatched in our industry today! If your in need of a professional job at a great price don’t forget to call Gateway first!!!”
- John C.

Air Conditioner Maintenance in Mt Sterling, KY 40353

“I contacted Chris Hart with Gateway Heating and Cooling. I told him my problem. He got me a tech ASAP John Winters. He’s professional and we were very pleased due to temperatures getting hotter now. A big Shout out to Josh Moore and his crew!!”

- Marilyn M.

Heat Pump Maintenance in Mt Sterling, KY 40353

“Just recently our heat pump needed a UV bulb replacement. John Winters was the technician that performed the replacement. He. Kept me informed of his arrival time, very much appreciated. While here he displayed a very professional appearance, positive attitude, and a good business work ethic. John seemed to be genuinely concerned about my system he was working on and was more than willing to address any and all concerns I brought up during his time here. I was very pleased with his knowleadge of my system and his openly friendliness. As a company employee, I’m sure he is a valued asset. I give him a 5 star thumbs-up.

Thank you for being such a good company.
Robert Atwood (850) 217-9244.”

- Robert A.

Read Our Latest Articles

High angle shot of a young businessman feeling ill at his work desk.

AC and Allergies

August 17, 2023

Looking for additional methods to stop allergens from inhabiting your home? Gateway Heating & Cooling has a team of home comfort experts ready to find the perfect solution for your lifestyle.

Read More
Image of ductless system above a couch. Planning to Remodel? Go Ductless!

Planning to Remodel? Go Ductless!

August 8, 2023

A ductless system, also known as a mini split, can add comfort to areas of your Kentucky home where ductwork cannot reach.

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