At Kalins Indoor Comfort, we strive to treat every customer with the utmost respect and fairness, always treating their home or business like it is our own.  We value your opinion and hope that your experience with us was outstanding. 

We Want to Hear From You!

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What Our Customers Are Saying

Kalins has been receiving customer testimonials for years. Here are some from the archives. Enjoy!


Lennox Reviews

Feel free to browse our reviews via Lennox or scroll down to read some of our recent testimonials. 


Recent Testimonials

“I am very happy when ever Chris does any work at my home. He is the best. He knew where to look for the problem right away. I hope he will pass some of his knowledge on to his coworkers. Sorry I am late sending this survey back, but have been out of town.”

— Shirley Randall

“Aaron serviced our air conditioner and suggested a water sensor that he thought might especially be helpful when we travel. We're so glad to know about it and he actually installed it before he left. He's very knowledgeable and very personable. We appreciate his service!!”

— Paulette Schmidt

“Ryan fixed our air conditioner and did a fabulous job!! My husband, Steve, also submitted a glowing report about Ryan!! Very satisfied with his workmanship!!”

— Carol A. Winter

“Chris Walker was absolutely amazing. I bought this house over a year ago, and being a fairly new homeowner, I didn't know a lot of things about my furnace. He got everything tuned up and fixed for me, and was so friendly! Teaching me about the baffles in my house made my day.”

— Loye Pack

“Dan did a great job of quickly fixing our issue with our furnace, as well as giving us guidance on how we can mitigate a similar problem in the future. While at our home, he also gave us some good information regarding other products that would make our furnace more efficient along with keeping our home healthy and clean.”

— Tyler Zellmer

“The service was amazing! Thank you so much for fixing our furnace and putting on a humidifier. We have already noticed a difference in the air!”

— Teri Winkel

“The ease of meeting with Brad in our home was exceptional. He gave us some options on what we could do, instead of telling us what to do. The installation team (Neal and his partner) did an exceptional job installing our new wood fire place. Neal took the time to explain how to run the unit and how it worked. He even chopped some wood and started the fire place to make sure all was great before he left. I would recommend Kalins quality and service to anyone!”

— Tami Guenther

“Chance was very nice and courteous. I feel that we were given an honest run-down of the condition of my furnace instead of any push to replace unnecessary parts before their needed replacement time. That is very much appreciated.”

— Nicole Dean

“Your on call operator was polite and had service person call back right away. Last Saturday the service tech Fernando was polite and listed to our concerns. Even took another call in the week when problem persisted. Then on Friday the next service person, Ryan inspected thought had problem cured, prior to leaving came up with a final resolution, mother board replacement. This was the solution. Enjoyed Kalins service.”

— Jerry Chettinger

“I have been a Kalins customer for many years now. I have yet to find one service person this is not a real pro at their job and very interested in how my hvac is working for me. I worked at a place that people were not always happy. I suppose that is a part of life in today's world however, I am impressed at how the people that represent Kalins / Bruce are always upbeat and speak well of there jobs, boss and equipment. I am satisfied and hope the great service continues. Thank you.”

— Rich Murray

“The service man that took care of our furnace was awsome. He did a good job and answered all my questions. Thanks.”

— Jim Soukup

“The technician was very polite and timely. He was very good at helping find the problem with our fireplace, and thought the charges were reasonable for the time spent.”

— Ellen Mitchell

“Our fireplace work was excellent.”

— Ron Houske

“Excellence deserves praise….(Your installers) were very courteous, and what impressed me the most was their attitude and willingness to go the extra mile to assure our complete satisfaction….I am convinced that (your installers) are the most conscientious contract workers I have had on our farm in many years. They did a very professional job…AND they always cleaned up after each day’s work….very knowledgeable on WHAT and HOW to install, which gained our confidence in Kalin’s ability to match the heating and cooling system to our home, not just make the sale.”

— G. McCall, Ute

“Bruce Kalin was extremely efficient in performing a heating analysis. His estimate was very competitive with our other estimates, however the Lennox rebates allowed us to get the G71 furnace – more furnace for the same money. Outstanding dealership all around!!!”

— Shannon Wolf, Sioux City

“The young men who installed our furnace were very prompt! Laid drop clothes and overall were very professional and answered and explained all our questions. Would not hesitate doing business with Kalins again! Thank you.”

— Robert Smith, Sioux City

“Bruce Kalin came out to the house the day after he was called he had the best analysis & presentation of the 3 companies we checked with. He measured all the rooms & windows to determine the capacity needed. The installation was done less than a week later & an excellent job was done. We were happy with the quietness & also the efficiency of the unit.”

— Sheldon Reese, Moville

“Kalins was extremely courteous and knowledgeable and very good in explaining the new furnace. The installers were very polite and also explained the workings of the furnace.”

— Rick Schroeder, Sioux City

“Everyone was wonderful and very helpful. We’ve already been passing the word on to our neighbors; family and friends. Thank you all so very much!”

— Ruth Parker, Sioux City

“We have used Kalins Heating for the past 35 years and have been extremely satisfied with their excellent service.”

— Paul Kaiman, Sioux City

“The sales staff at Kalins did a great job. We had shopped around the area and Kalins really stood out above the rest. From the actual sale to the installation to the powering up of the unit, Kalins exceeded our expectations.”

— William Hanus, Hinton

“Kalins through many years has been thorough & helpful, Lennox too, have given quality on both heating & cooling! Thank you.”

— Wayne Knutson, Vermillion, SD

“I was very impressed by the professional and friendly service – even covered my floors from the door to the furnace room – WOW! Showed up when they said they would and finished when they said they would. Good Job!”

— Meridith Lorenzen, Battle Creek, IA

“Outstanding service! From the sales person to the installers. We were very impressed.”

— Greg Merrigan, Vermillion, SD

“I’ve had Kalin’s heat/air conditioning for all my heating-cooling needs for many years, also had a service contract for many years – I’ve recommended and will continue to recommend them to others! The Kalin family & staff are great!!!”

— Audra Cole, Sioux City

“My furnace went out in the middle of a cold spell we called Kalins and they came out promptly and even brought us portable heaters to keep us warm until they could come back and install, then they even came and installed the morning of a 10 inch snow storm.”

— Gene Flair, Sioux City

“I would like you to know that we are very pleased with the service we received from your company. Everyone was very helpful, starting with the receptionist who was very professional in the way she took my message and assured me that we would hear back soon…and we did! The salesman was understanding, and did not oversell, but listened to our concerns and needs, and helped us make the decision on what to purchase. ….. Again, we are VERY pleased with this whole experience, and will recommend you to anyone who has a similar situation. Thank you, thank you again!”

— Bryan and Nancy Stingley, Jackson, NE

“Dear Mr. Kalin, I have never written a letter of this nature before and must say it is refreshing. ….. Between Aaron and Scott, I cannot tell you who is the most outstanding employee. First, Aaron came out a year or so ago to repair the A/C. He was so nice. He explained everything and was very knowledgeable and extremely friendly and efficient. We knew, after meeting him, that we would buy a new furnace and A/C from your company when needed……We will tell friends and relatives of your outstanding employees and service and thank you again. By the way, the furnace and A/C are working terrific and so quiet that we can’t even tell they are on.”

— Dennis & Coleen Rose, Sioux City

“Jan and I wanted you to know how pleased we have been with the new furnace and electric heat pump your company installed for us in early January. It has worked very efficiently and, unlike our old furnace and thermostat, it is always very accurate and seems to run only when heat is needed at the desired temperature. I reviewed our gas bills and usage for the period of January to April this year compared to the same period a new ago, and it appears that we paid approximately $300 less in gas cost than we did the previous year…...going forward, we think this will be a great investment and pretty quick payoff for us in lower energy usage.”

— Peter Thoreen & Jan Marshall-Thoreen, Sioux City

“Lennox has always had a reputation for being a company with quality products. The equipment we had had installed is not an exception to that reputation. We are extremely happy with the furnace and heat pump. There has been no problems with it and is doing exactly what it is supposed to do. As for Kalins, they also are a class act. They should be commended for quality service.”

— Mike & Sheryle O’Brien, South Sioux City, NE

“They did a good job, I said what I wanted, and they did what I wanted to be done, they are good at their work, they know what to do.”

— Wayne Kersting, Dakota City, NE

“We were very pleased with the service & personnel, very courteous & completed the job in a timely manner.”

— Richard Robert, Whiting, IA

"I am very satisfied with the Kalins Vermillion, SD office.  The staff is very knowledgeable & helpful.  I have used Lennox products in the past and I have always been satisfied." 

— Jerry Pratt, Vermillion, SD

"They were one fo the best, if not the best, company I have ever worked with from purchasing to installing to training.  I am very happy."

— Father Merlin Schrad, Sioux City, IA

"Kalins has always privided great service.  Thank you."

— Noel Williams, Jefferson, SD

"Kalins family has had all my heating and cooling business for over 30 years, never a bad experience."

— Dr. Paul Burke, Sioux City, IA

"While building our home, we dealt with many businesses.  Of all of these businesses, Kalins sales/service was by far the most trustworthy, honest, caring group of people to work with.  We thank you all very much and have recommeded & will continue to recommend your team to anyone.  Thanks!"

— Scott Beitelspacher, LeMars, IA

"Fernando was wonderful! Professional, courteous, hard working and very good at his job. I would recommend him to anyone. God bless you all."

— Donna Young

"Stan did a good job. I will ask for him next time."

— Gary Henry

  • Residential Heating and Cooling - Sales and Service
  • Commercial Heating and Cooling - Sales and Service
  • Indoor Air Quality Systems
since 1921
  • Whole House Diagnostic Services
  • Retail Fireplace - Sales and Service
  • Aeroseal Duct Sealing
Our Locations

Sioux City, IA – serving the Siouxland area
Vermillion and Yankton, SD – serving Southeast South Dakota


We accept most major credit cards and offer financing with approved credit.