Providing Prompt Professional Service Since 1973

Heating

Is your furnace having problems, not heating properly, or making noises it shouldn't? Don't wait until it is freezing and you have no heat. Let our team of professionals help keep your furnace running at its best.

Cooling

Don't wait until the summer heat is here, let us make sure your air conditioner is running the way it should. Or if you want to upgrade your air conditioner our team is here to assist you in purchasing a new one.

Maintenance

Regular HVAC maintenance is important, let us help you extend the life of your equipment and keep them running for as long as they can.

Foster Heating and Cooling Team

The Foster Heating and Air Conditioning team’s top priority  is to give our customers quality and dependable service at a fair and competitive price. Our team is trained and qualified to install, repair, replace, and maintain all your heating, cooling, and indoor air quality systems. No matter what your HVAC needs are, we are here to help provide you with exceptional service and keep your systems running smoothly. 

Products We Offer

Residential
Commercial
Commercial
Commercial
Residential
Residential
Residential
Residential

Make Payments Online

For easy and convenient payments pay online today!

What maintenance plan works best for you?

Semi-Annual inspections and cleaning help reduce your utility bills. Out Maintenance Plans are designed to “Pay for Itself” in fewer breakdowns and extend equipment life. All customers who purchase a maintenance will get top priority scheduling. Emergency Service is available 24 hours a day, 7 days a week.

Call us at (660) 707-0797 for more information. Or fill out the form below and bring it by our office: 915 South Washington St Chillicothe, MO 64601.

Customer Testimonials

We love to hear feedback from our customers! If we have worked on your HVAC system we would love to hear from you as well!

4.9
Based on 192 reviews
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Sara Paul
21:58 03 Feb 26
Alex service man was very professional and did a great job 😁👍
Judith Hamilton
15:49 29 Jan 26
Great experience! So many nice people, from the people who answered questions via telephone, to the technicians who diagnosed the problem and installers. Very caring company.
Benny & Pauline Hansen
21:26 12 Nov 25
J.W. - Excellent field tech !
Very professional !
Jeremiah Dye
23:22 15 Sep 25
Technician arrived on time, they were quickly able to diagnose the issue and fix the problem. Quick, efficient and was great at communicating about the what and why's of everything he'd done. I highly recommend Foster to anyone with A/C or heating needs.
Kiara Dunwoodie
14:57 31 Jul 25
If I could rate them more than five stars, I would. They were quick to answer the phone and had a repair tech out first thing the following morning. Our tech was super kind and explained everything very well. He replaced our bad part quickly and made sure our AC was doing its job before leaving.
Casey Scott
18:58 11 May 25
Return customer - love their ethics. The first job I had required a bit of customization and engineering to get things right. There was a period where bugs had to be worked out (like with any new machine) - but I was impressed with their determination to make sure everything was done correctly. Gary was the person I worked with to help troubleshoot and find solutions and he was very friendly, knowledgeable and took time to explain things to me. Marshall worked with me the second time and made sure I had all the information I needed to make decisions and took time to explain things as well. It was truly appreciated. It’s important to take care of your customers as a small business- and they embody that mentality.
Kim Skoog
15:53 28 Mar 25
Gary came by to do our spring HVAC check. He is very knowledgeable, friendly, thorough and understanding (I had to reschedule at the last minute). Foster’s is the only HVAC company that we use for our businesses (Threads Thrift Store, 55 & Go, Joy Toys & Bikes and the Grand River Multiplepurpose Center) We could not be more pleased with everything from the way they answer the phone for an emergency call to our new units being installed. Everything and everyone is professional, very knowledgeable and friendly.

If you are needing a new unit or an upgrade, I can’t say enough good things about the process with Foster’s. They spent 2 hrs with me discussing my vision for our showroom at Threads Thrift Store. They explained in detail what would work, what wouldn’t and offered fantastic alternatives. The installation was seamless and looks FANTASTIC!
Pamela Fahling
18:54 02 Apr 22
As always, Foster is fast, reliable and polite! I highly recommend them for all heating and cooling issues you have
Tammy Tutt
18:23 25 Nov 21
Excellent customer service, knowledgeable & polite
Jill Buxton
13:12 01 Nov 21
Friendly and reliable service.
Roy And Laura Warner
20:07 22 Aug 20
Our A/C completely quit on a Sunday i called Monday morning they had someone out that afternoon and a new unit put in by Saturday!!! Great people!! Thanks guys!!!

Our Contact Details

Address

Contact us with any questions.

Opening Hours

We are in office Monday through Friday and provide emergency service 24/7

Monday – Friday
Saturday – Sunday