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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.

Noelle S.

dena B.

Kalins in Vermillion is awesome. The receptionist is so friendly and helpful Dana is a gem. Tyler did a great job answering our questions and giving use straight forward honest answers. Very quick response time. Great service.

Connie L.

Bill was very helpful and explained everything about my heat pump situation.

Response from the owner:Dear Connie,
Thank you for the 5 Star Rating and Review for our Service Technician Bill! We appreciate the feedback that he explained everything about your heat pump situation. Thank you for choosing Kalins Indoor Comfort.

Renee B.

Bill K. did a great job diagnosing the furnace issue. He is very professional!

Response from the owner:Dear Renee,
Thank you so much for the 5-star review! We’re proud to hear Bill did a great job diagnosing your furnace issue. His professionalism and attention to detail are exactly what we strive for on every visit.

We truly appreciate your trust in Kalins Indoor Comfort and are always here whenever you need us in Sioux City, IA.

Cindy W.

Response from the owner:Dear Cindy,
Thank you so much! Annual heating system maintenance is key to keeping everything running safely and efficiently. We’re glad Kevin provided another A+ visit and truly appreciate your continued Comfort Club membership in Crofton, NE.

jeff D.

The technician was very professional at his job.

Response from the owner:Dear Jeff,
Thank you for the 5 Star Rating and Review and for being a Comfort Club member! We’re thrilled to hear that Mikkah was professional during your furnace preventative maintenance. We truly appreciate your trust in Kalins and look forward to keeping your home comfortable season after season in North Sioux City, SD.

Clyde E.

Response from the owner:Dear Clyde,
Thank you for the 5-star review and for being part of our Comfort Club! We’re glad your maintenance visit went smoothly and that our technician delivered the friendly, professional service we strive for every day.

We appreciate your continued membership and look forward to your next visit in Hudson, SD.

Jason G.

Very fast efficient and transparent…. Highly recommend

Response from the owner:Dear Jason,
Thank you for the 5 Star Rating and Review for our Service Technicina Bill and welcome to the Kalins family! We’re glad our team was able to respond quickly, get your heat restored, and complete a thorough furnace cleaning to keep your system running safely and efficiently.

We pride ourselves on being fast, transparent, and fair with our pricing — especially in no-heat situations when you need answers right away.

We truly appreciate the recommendation and look forward to serving you again whenever you need us.

Scott W.

Fernando Franco, Service Technician, did an Excellent Job!
Very thorough, Fast, Friendly Service.
I trust Kalins.
I am a long time Kalins Customer.
I am very happy with my Lennox system and Kalins Indoor Comfort.
Thank you!

Response from the owner:Dear Scott,
hank you so much for your continued trust and for being a valued Comfort Club member! We’re thrilled to hear Fernando delivered thorough, fast, and friendly service — we’re proud to have him on our team.

It means a great deal to us that you’ve been a long-time Kalins customer and that you’re happy with your Lennox system. After 105 years in business and three generations serving this community, relationships like yours are what matter most.

Thank you again for your loyalty and for choosing Kalins Indoor Comfort. We truly appreciate you!

Richard W.

Bill was great. Send him back.

Response from the owner:Dear Richard,
Thank you for the 5 Star Rating and Review and for being a valued Comfort Club member! We’re so glad to hear Bill provided a great furnace maintenance visit.

Building relationships with technicians you know and trust is one of the best parts of our Comfort Club program — we’ll absolutely do our best to send Bill back for your future visits.

We truly appreciate your continued trust in Kalins Indoor Comfort!