KNZ Heating & Cooling
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KNZ is the contractor used by our builder. Kieth came in and talked to us about how we going to use the rooms. He then went through the plans and with our input, put together a comprehensive plan to make best use of the heating and cooling system. The craftsmanship and professionalism of his employees is the best I have seen in years. The follow up has been excellent this fall kieth stopped by to check on everything to to make sure everything was still to our liking.

Mitch M. Valparaiso, IN

You can always count on K n Z to get the job done, and get it done right. Much thanks Keith - A+ service and a true professional!!

Matt M, Crown Point

On one of the hottest days of the year, and being the 4th of July, we called KNZ and they came out and fixed our airconditioning, we can't say enough about how happy we were with the service and the serviceman was very courteous. Thank you KNZ

Chris M. - Cedar Lake, IN

Very nice experiance working with KNZ. Steve was very polite. Took the time to explain the problem. Same day service with only a 2 hour window. Didn't have to sit home all day waiting.

Kris G - Lowell, IN

Woke up in the AM had no heat. Called KNZ heating they were quick to answer the phone. They were fair with their priceing, prompt , showed up in the time frame that was givin. Thanks for taking care of us.

Lois B - Crown Point, IN

KNZ installed a server room air conditioner for us quickly and professionally. Much appreciated Keith, hopefully I don't have to call you any time soon, but if I do I know you'll have me taken care of.


Kyle - Mindpack Studios - Crown Point, IN

Dear Mr. Miller

We at the Apostolics of Lowell would like to extend our gratitude for the wonderful new furnace and air conditioner. The price was very reasonable and your installation crew was very diligent. They made sure everything was done right.

Our church is not very large, and in this economy, contributions are not enough to meet all of our needs. This fact makes us apprecaiate KNZ for giving us a very reasonable price. I can surely recommend KNZ to others who need kheating or cooling service or sales.

May God bless you for your kindness.

In Jesus' Name,

Rev. Lawrence E. Sinick, Pastor

Just wanted to Thank-you for getting our job done as fast as you did. Thank you.

Pam D. Highland, IN

KNZ You did a great job of removing our "old" furnace and duct work and replacing it with new.  The men were prompt, courteous and did a good job of cleaning up.  We are enjoying our new furnace and central air.  We would use your services again, but we hope not for a long time.  We would highly recommend your services.

Tom and Janell D. 

As a retired Thermal-Mechanical engineer.  I can attest to the fact that KNZ is a complete and professional HVAC systems contractor.  KNZ was competitive (second low of five bidders), the only contractor that figured out how to reasonably install the top efficiency furnace, and by modifying our ductwork removed an uncomfortable draft and temperature differential problem we've had in our home for years.

Jim C. Valparaiso (Shorewood Resident), IN

Thanks so much for the "white vents" and for your info on the "dehumidifier" and have outside vents open for the crawl space.  Warmest Regards.

Gerrit D. St. John, IN

We did our own research and found the best company in the area! It was a pleasure doing business with you, Keith; we thank you and your staff for the great job. We will definitely recommend your company in the future.

Jim K. -Lake of Four Seasons Resident

Follow-up service paramount to excellence.

Jim K. -Lake of Four Seasons Resident

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