Harster's 60 years of experience will make you comfortable. We're one of St. Louis' best, most respected contractors (and humble) when it comes to efficient gas and central heating systems for your home. Being local means you can trust Harster for all aspects of your furnace installation, repair, replacement and maintenance. Harster Heating and Air Conditioning is a top-rated residential and commercial company whose been family-owned and operated for over 60 years. We're proud to work with top manufacturers, offer great prices and provide exceptional installation, repair, replacement and maintenance for all your HVAC needs.

The most important thing you can do for your HVAC system is to give it some love. A custom HVAC maintenance plan with Harster will ensure you and your system will have a long and happy marriage. We have many preventative maintenance contracts and agreements - for every budget and abode - and we can customize one for you! We follow an extensive checklist that covers the details and you'll also get the best tips and tricks to keep your system running for years to come. Harster Heating and Air Conditioning is a top-rated residential and commercial company whose been family-owned and operated for over 60 years.

From sweat one day, to shivers the next, Harster knows just how tough your HVAC has to be to tackle this town's brutal, ever-changing conditions. We have the systems and services you need to keep up with the climate. We offer a wide range of quality HVAC systems from the top manufacturers and companies. We work with outstanding contractors and our service team is one of the best you'll ever work with for installation of a new system or maintaining your current system. Harster Heating and Air Conditioning is a top-rated residential and commercial company whose been family-owned and operated for over 60 years.

From A to (almost) Z, Harster carries, has worked with, and knows -- like the back of our calloused hands -- just about every HVAC manufacturer. We offer quite a range of products from those manufacturers, too; from heat pumps and heat exchangers to humidifiers and thermostats. Pretty much anything you (or your unit) will ever need, we've got it.

Having an efficient hot water heater is a must. Let's face it: cold gets old. Harster's here to help with several hot water solutions that we can estimate and price for you quickly. We offer top manufacturers of tank and tankless water heaters, as well as electric choices. Harster can install and maintain your hot water heater, or repair or replace your old one. We'd be happy to do an evaluation of your system today! Harster Heating and Air Conditioning is a top-rated residential and commercial company whose been family-owned and operated for over 60 years.

Nothing stops a Trane! Harster offers Trane Furnaces - that provide absolute comfort, top efficiency and money saving technology. Ask our technician if a Trane furnace is the one for you to catch, when it comes to your budget and HVAC needs.

Business owners are under a lot of stress and pressure to keep their operation running smoothly at all times. With the seasons so extreme in the Midwest, staying on top of your commercial HVAC needs can be an additional worry that you have to deal with, as you always want your employees and your customers to feel comfortable while in the building. Thankfully, our HVAC contractors serving Columbia and surrounding areas can help take care of all your HVAC needs at an affordable price. Because commercial HVAC equipment can be so complicated, even one small mishap can result in disaster.

To learn more about commercial rooftop units and how they can benefit your business, call us today at 314-668-2273 or email us here. We will reply within 24 hours, Monday-Friday.

We carry top manufacturers and handle installation and repair with heat pumps, rooftop units, water heaters, thermostats, registers, boilers, humidifiers, heat exchangers, inspections, sheet metal work (whew) and much, much more. The full list is below. If you're a DIY-er, we can help you with media filters, too.

Pardon the pun, but air conditioning for our team at Harster HVAC is a breeze. As one of St. Louis' most respected residential and commercial HVAC companies, we have worked on thousands of homes in and around the area. From unexpected air conditioning repair in Columbia to a standard installation of a new AC unit, our team does it all. Having a team of skilled technicians that are ready if you need air conditioning repair in Columbia can give you peace of mind that high-quality help is only a phone call away.

Commercial heating systems play a huge role in keeping your business functional year-round. These systems should be both energy efficient and effective in providing heat to your commercial property. Heating systems technology for industrial and commercial building needs has changed dramatically over the years. Trust that our team at Harster is on top of the trends and technology to help you and your company with your heating needs. Your commercial HVAC system in Fenton and South County areas is just as important to us as it is to you.

Courteous technicians with prices from hell. $730 for 4 pounds of R22. R22 is about $25-50 per pound currently. Learned my lesson.

Day after Christmas the furnace went out. Harster went the distance to get us up and running early the next day. Our furnace is not a common brand but they found the part in town. They offered us space heaters to use until we were up and running. We maintain an annual service contract with them which I highly recommend. It saved us a lot of money. Harster's level of service is a rare commodity these days. Thanks to all the team who worked on our problem

I beyond disappointed with the service we received. Sure the techs were courteous, but the stream of inconsistencies with pricing was a total joke.

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