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Yost & Campbell Heating, Cooling & Generators: A Westchester County NY Heating and Air Conditioning Company

In 1939, Leo Yost and Alvin Campbell started a humble refrigerator repair service in Yost’s garage. They started with a simple principle: provide quality service in a timely fashion without charging more than the customer could afford. The formula worked, as such formulas often do, and Yost & Campbell Heating, Cooling & Generators was soon on the map.

It’s 85 years later, and we’re still here: providing quality HVAC, generator, and water heater services throughout the tri-state area. The game may have changed and we’re certainly servicing a large number of additional systems and products, but our core goals haven’t changed. We’re proud to have been a part of Westchester County and the Bronx for three-quarters of a century and our trained staff is ready to go with whatever problems you need. Give us a call today and let us show you what we can do.

One of our technicians
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Home Comfort Club

Home Comfort Club

Save money & extend the life of your system

  • Annual Maintenance of covered equipment
  • Receive a 5% discount on parts
  • No premium charge for after-hours service
  • Unlimited Diagnostic Calls

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Our Core Values

We are relentless in our pursuit of being the very best at everything we do and surpassing our customer’s expectations.

We diligently follow our established proven processes to ensure we deliver best-in-class quality workmanship and customer service.

We invest in training and developing our team.

We strive to get the job completed and done right the first time.

We install quality and reliable equipment.

We are honest, forthright, and fair in all our dealings.

We put customers first and always act in their best interest by recommending the best solutions for their situation.

We follow through, don’t take short cuts and take pride in our work.

We stand behind our work and honor our commitments.

We are straight forward and up front about expectations, cost, and our ability to help the customer.

We are truthful and own our mistakes – we will always do the right thing.

We treat others as we wish to be treated.

We put the needs of others before our own.

We are grateful for the opportunity to serve our customers.

We have a positive attitude at all times.

We work as a team with respect for our customers and work colleagues.

We respect and value the health and property of our customers and colleagues.

We embrace change and continuous improvement.

We leverage technology to deliver the speed, quality, efficiency, and cost effectiveness of service that our customers expect and provide our team with the best working environment and work life balance in the industry.

We bring new products to the market to better serve our customer’s comfort with a focus on simplicity and ease of use.

Serving Westchester, Bronx, Queens and Rockland counties since 1939

Services you can count on:
An old picture of a classic Yost & Campbell truck.

Heating Services

Westchester County gets cold in the winter, and without a proper heating system, your home will be less than comfortable. Our experienced technicians have worked on everything from boilers to furnaces to alternate forms of heating like heat pumps. With over 75 years of experience, we have the knowledge you need to handle any concerns with yours: from installation to maintenance to repair to replacement. Regardless of the kind of system you have, we’ll be there for you every time!

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A technician collecting items from a Yost & Campbell truck.

Air Conditioning Services

Our summers are as hot as our winters are cold. And just as you need a heating system to stay comfortable in the chilly months, so too does air conditioning play a vital role in the hot ones. A good air conditioning service will start with installation and ensure that your new unit is properly sized and ready to go. They follow that with yearly maintenance to catch big problems before they form, and emergency repair service for those times when the unexpected occurs.

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A technician working on an air quality device on the ceiling.

Indoor Air Quality Services

Temperature control is very important in Westchester County, but without good indoor air quality, your heater and air conditioner will struggle to keep you comfortable. Humidity can wreak all manner of havoc when it gets too high or too low, and dust and dirt in the air can result in all kinds of health problems. That comes on top of germs, bacteria, and other contaminants. An indoor air quality system can handle all of these issues and more, ensuring that your home remains comfortable at all times!

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A technician working on a generator.


Westchester County can be hit by disaster at any time, and while our civic electrical grid is very reliable, a blizzard or hurricane can still knock it out. The best way to protect your family in such circumstances is to have a generator installed by the people at Yost & Campbell Heating, Cooling & Generators and to keep it repaired and maintained on a regular basis. That way, you’ll be ready to go the minute the rains or snows fall, and keep your family safe and warm until the crisis has passed!

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A technician reviewing a clipboard in front of a truck.

Water Heaters

Water heaters used to be fairly simple devices—big cylinders in your basement or garage that did their jobs without much fuss or bother. These remain the staple for heating water in area homes, but they’re not the only options out there. Tankless water heaters and hybrid water heaters can make a sensible choice for many individuals, and our trained staff can advise you on the best system for your home before performing installation and repair duties with professionalism and pride.

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Yost & Campbell Heating, Cooling & Generators

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