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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.

Rusty C.

Quick, professional, informative and very reasonable price-wise. I can ALWAYS depend upon Kalins if something goes screwy and I need them right away. GOOD COMPANY to do business with. They totally get “Customer Service”

Response from the owner:Dear Rusty,
Thank you very much for providing a 5 Star Review and Rating! We appreciate you for being a lifelong valued member of our Comfort Club. Many thanks for the shout-outs on customer service and dependability! Regards, Kalins Indoor Comfort!

Curtis W.

Very friendly and knowledgeable. Isaac took time to answer my questions and keep me updated on my system.

Response from the owner:Dear Curtis,
Thank you for the 5 Star Rating and Review for our Service Technician Isaac! We are excited to hear that during your furnace preventative maintenance visit, he was friendly, knowledgeable and took the time to answer your questions. Thank you for choosing Kalins Indoor Comfort in Sioux City, IA!

Kim B.

Bill was very knowledgeable and polite. Got our family 2 space heaters today since the furnace stopped working and have to order parts. Kalin is coming back early in the morning to help us look at options.

Response from the owner:Dear Kim,
Thank you for the 5 Star Rating and Review for our Service Technician Bill! We’re glad Bill was able to step in quickly and take great care of your family. When a furnace stops working, comfort and safety come first — and providing space heaters while we order parts is just one way we try to ease the stress. We appreciate the opportunity to come back first thing in the morning to walk through your options and get everything resolved. Thank you for trusting Kalins Indoor Comfort — we’re here for you every step of the way!

Patti B.

He did an excellent job. He has a nice personality, was right on time, and he did a thorough and conscientious job.

Response from the owner:Dear Patti,
Thank you for the 5 Star Rating and Review for our Service Technician Mason We appreciate you noting that during your furnace preventative maintenance visit, he did a thorough and conscientious job. We appreciate you being a valued member of our Comfort Club in Vermillion, SD.

Judith S.

Prompt and Polite and efficient. He explained what he checked on. He also asked if I had any questions or concerns. Kalin techs always have given me great service for 50 years. I highly recommend them. I have a service contract with them so this visit was prepaid. See annual service cost below

Response from the owner:Dear Judith,
Thank you for the 5 Star Rating and Review for our Service Technician Draven! Thank you for being a Comfort Club member and for taking the time to leave such a kind review! We’re glad to hear Draven was prompt, polite, and thorough, and took the time to explain everything and answer your questions. Having your annual maintenance prepaid through your service agreement is all about peace of mind — and we’re honored you’ve trusted Kalins for over 50 years. That kind of loyalty truly means the world to us. Thank you for recommending us and for being part of the Kalins family in Vermillion, SD.

Cyndi B.

Tyler was awesome!! Very thorough and informative! Much more detailed than the past ( hubby said) the guys were both top notch!!

Response from the owner:Dear Cyndi,
Thank you for the 5 Star Rating and Review for Tyler! We appreciate that he was thorough and informative. Thank you for choosing Kalins Indoor Comfort!

Molly T.

Bill Kammerer. Awesome thank you.

Response from the owner:Dear Molly,
Thank you so much for the 5 Star Review and Rating for our Service Technician Bill! We appreciate the feedback and agree with you that he is awesome! Thank you for choosing Kalins Indoor Comfort in Sioux City, IA.

Lesa T.

Micah was very professional and very friendly and supportive when showing me how to operate the control system.

Response from the owner:Dear Lesa,
hank you for the 5 Star Rating and Review and for being a Comfort Club member! We’re happy to hear Mikah was professional, friendly, and took the time to walk you through how to operate your control system. Preventative maintenance is about more than just checking the furnace — it’s making sure you feel confident and comfortable with how everything works. We appreciate your trust in Kalins Indoor Comfort and look forward to continuing to take great care of your home.

Joseph P.

Response from the owner:Dear Joseph,
Thank you for the 5 Star Rating for our Service Technician Radyn. We appreciate the feedback and thank you for choosing Kalins Indoor Comfort for your furnace preventative maintenance in Sioux City, IA.

Greg G.

Aaron was pleasant, informative, and efficient.

Response from the owner:That is wonderful to hear! We are so happy Aaron got you taken care of!