For The Best Heating and Cooling Experts Choose Kalins!

Kalins Indoor Comfort serves homeowners in Iowa, South Dakota and Nebraska with dependable HVAC services. For over 100 years, our business has spanned three generations of family ownership. We work hard to look after our customers and team members. Our highly-trained technicians are here for you 24/7 to help with any heating or cooling problems.

Whether you’re looking for help with your air conditioning, considering a new fireplace or worried about indoor air quality, we can help. We’re proud of our legacy and are dedicated to the people we serve and the team members who make up the Kalins family.

As we like to say, “When You Want Comfort…You Want Kalins!” and it’s a motto that goes beyond just words. We give you our promise that we’ll always provide you with the best service and the highest standard of workmanship.

Heating

Cooling

Indoor Air Quality

Duct Sealing

Fireplaces

Reliable HVAC Services Across the Midwest

For homeowners in Iowa, South Dakota, and Nebraska, we offer heating and cooling services and solutions that cannot be beaten. When the temperature swings quickly as is normal here in the great Midwest, you'll want an HVAC system that can keep up. One day you might need the cool and breezy air of your AC, and the next you'll be firing up your furnace. No matter what the weather has in store, we'll help to keep you comfortable. So, whether you are looking to repair or replace, you've come to the right place!

From the moment we take your first call, we'll step up to the plate to exceed your expectations. Your satisfaction is everything to us and it's a passion that is strong throughout our team. We can assist with HVAC repairs, installation, and maintenance and will have your system operating perfectly all year round. We're also here to help you with your fireplace. From beautiful indoor fireplaces to contemporary fire pits for your patio, we excel in designing and fitting stunning and practical features for your home.

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Why Choose Us?

At Kalins Indoor Comfort, we believe that your home should be safe and comfortable for precious family time. We'll help you to keep it that way with our heating and cooling repair, installation, and maintenance services. From helping you to save money on energy costs to advising you on the best fireplace for your space, we tailor our services to suit your needs. When we opened our business in 1921, we could only have dreamed about how successful we would be over 100 years later. Through hard work, determination, and dedication to our customers, we've built a company that you can truly trust.

Experience

We have over 100 years in the business.

Customer Service

We’re proud to have received thousands of 5 star reviews.

Connections

We’ve been a Premier Lennox Dealer for over 70 years.

People

Our team of highly-trained & respectful employees are ready to serve.

Commitment

Because we love what we do, we have the drive to do it well every day.

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Awards & Credentials

BBB Accredited

Lennox Premier Dealer

Lennox Circle Of Excellence

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Call Us Today to Schedule an Appointment

Over a century may have passed since we first opened our doors, but you can expect the same great service and value today as we insisted on back then. Comfort is everything when you are at home. From the moment you walk out of the chilly rain through your front door to the times you escape the heat into a cool and breezy haven, you depend on your HVAC system. And you can depend on us. We bring you a wide selection of heating and cooling services in one place and deliver each exceptionally well. You'll always be our first priority no matter which of our services or solutions you choose.

Speak to our team here at Kalins Indoor Comfort today to discover more about our HVAC services and how we can help you to enjoy year-round comfort. We're standing by ready to assist you, so contact us today!

See What Our Clients Say

Luke always does a great job explaining what the maintenance covers and what he will be doing. I appreciate his ability to speak on my level. He’s kind, courteous, professional and we enjoy having him service our system. Great job!

Lori B.

Aaron not only did a good job, but he did a great job. He was pleasant, explained in layman’s terms what the problem was, and repaired it immediately. He took the time to make sure everything was functioning properly before he left. Thank you, Kalins, for taking good care of our HVAC needs!

Mary Kay S.

Kalins is great! I would highly recommend signing up for their annual service checks. They are very thorough and provide great peace of mind knowing that things are working as they should be. I recently had an appointment with Tyler. He is awesome! Prompt, very knowledgeable, professional, and helpful. Thank you!

Lisa K.

It’s never fun having to replace your whole system, but Kalins was beyond exceptional every step of the way. Quality products, quality service, and even better people have made a life long customer in me. I will recommend them to everyone I know, every chance I get. It’s not hard to see why they have been around as long as they have.

Mark L.

Jeanette J.

Pat M.

Chris Johnson was terrific! He saved this sale. I can’t say enough of how pleased I am. Kalin’s for having people like him on staff shows how smart they are. I am an extremely happy customer and would give Chris Johnson 10 stars!

Pamela S.

Jordan was great and did a very thorough job of maintenance on my system and reminding me of safety devices.

Response from the owner:Dear Pamela,
Thank you for the 5 Star Rating and Review for our Service Technician Jordan! Preventative maintenance is one of the best ways to protect your heating and cooling system, and we’re glad our team delivered a thorough and professional visit. We appreciate your trust in Kalins Indoor Comfort and thank you for being a valued Comfort Club member!

Donna H.

Mason was very courteous, friendly, and thorough.

Response from the owner:Dear Donna,
Thank you for being a valued Comfort Club member and for the 5 Star Rating and Review for our Service Technician Jordan! Preventative maintenance is one of the best ways to protect your heating and cooling system, and we’re glad Mason delivered a courteous, friendly and courteous visit. We appreciate your trust in Kalins Indoor Comfort in Wakonda, SD!

Rhonda B.

We had a few issues with the furnace humidifier. Aaron stopped by today. Aaron is always so positive and helpful. He fixed what needed to be fixed, then checked the filters and other settings.

We've got a maintenance agreement with Kalin's which gives us peace of mind. Great company to work with!

Response from the owner:Dear Rhonda,
Thank you for the 5 Star Rating and Review! We’re glad Aaron was able to address the humidifier issues and take the extra time to check your filters and system settings. His positive, helpful approach and attention to detail are exactly what we aim to deliver on every visit.

We also appreciate you being part of our maintenance agreement—routine HVAC maintenance is one of the best ways to ensure comfort, efficiency, and peace of mind year-round. Thank you for choosing Kalins Indoor Comfort in Sioux City, IA for your heating and cooling service needs. We’re grateful for the opportunity to work with you!

Pat H.

He did grate lm satisfied

Response from the owner:Dear Pat,
hank you for the 5 Star Rating and Teview! We’re glad our team could provide prompt, professional furnace repair service and get your heating system back up and running. Our goal is always to clearly diagnose the issue, explain the solution, and restore comfort as quickly as possible.

Thank you for trusting Kalins Indoor Comfort with your heating needs. We truly appreciate your business and are here whenever you need reliable HVAC service in Vermillion, SD.

Julie S.

Ryan Johnson at Kalins did an excellent job for us. Not only did he spend a great deal of time in order to fix the problem, but he highly knowledgeable. Wonderful customer service.

Response from the owner:Dear Julie,
Thank you for the 5 Star Rating and Review for our Field Manager Ryan! Our team takes great pride in delivering professional, efficient service with a strong work ethic on every job, and it means a lot to hear that reflected in your experience. Thank you for choosing us for your heating, cooling, and comfort needs in Sloan, IA—we’re grateful for your loyalty and look forward to helping you again in the future!

Nick D.

Response from the owner:Dear Nick,
Thank you for the 5 Star review! We’re glad our Service Technician Jordan could help with your fireplace service and ensure everything is operating safely and efficiently. Fireplace maintenance is an important part of home comfort, and we appreciate you choosing Kalins Indoor Comfort in Sioux City, IA!

L M.

Excellent service. Very happy. Thank you Fernando.

Response from the owner:Thank you very much for the 5 Star Rating and Review for our Service Technician Fernando! Preventative maintenance is one of the best ways to protect your heating and cooling system, and we’re glad our team delivered a thorough and professional visit. Thank you for being a valued member of our Comfort Club. We appreciate your trust in Kalins Indoor Comfort in Sioux City, IA.

Pamela Z.

Jordan explained everything very thoroughly and very friendly.
Thank you

Response from the owner:Dear Pamela,
Thank you for the 5 Star Rating and Review for our Service Technician Jordan! We appreciate the feedback that he explained everything and was thorough and friendly. Thank you for choosing Kalins Indoor Comfort for your furnace preventative maintenance in Sioux City, IA.