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Leif Peterson is an expert in HVAC. His expertise helped us identify the best products to efficiently heat and cool our home. Leif quickly responds when needed and always exceeds our expectations. We feel lucky to know him.

Talked with the owner about air to air heat exchange installation in my home. The owner was patient and helpful in describing my needs as far as air to air exchangers go and the various options available to me. Despite the fact that his company was very far from my location he took time to answer my technical questions and his thoughts on what would be good options for me to consider. If he would have been in my area I would have had him install my unit.

Leif is a conscientious and knowledgeable worker. He is not about selling stuff you don't need but is aware of the importance of maintenance. I will use him as my HVAC provider going forward. Well done.

Don't wait, just call Leif. He is both the brains and the brawn for the business and we've found him honest, dependable and trustworthy. Just yesterday he replaced a part that went bad on our A/C unit. Previously, in December 2018 he replaced our furnace that was old, in need of repair, and we didn't want to put any more money into it. His work on the furnace happened in a timely and efficient manner. We're satisfied with both the experiences we've had and would call him in an instant if ever necessary!

I found out about Leif through a mailing and made an appointment for a tune-up and to address a problem that had not been fully taken care of by another contractor. He did a thorough job of checking everything out and fixed our problem. I highly recommend him.

Our Central Air Conditioning unit went out in June of this year. We had 3 different contractors come out and Lief was by far the most informative. He was willing to work with us and work us into his very busy schedule at that time. He also worked with us and our Home Warranty plan, to make sure that it was covered. Lief will be the first call for any heating or cooling concerns.

Our central air went out overnight and Performance Heating and Air was my first call. He fit us in right away and quickly diagnosed and fixed the problem all at a affordable and reasonable price. Would highly recommend.

Couldn't have had a better experience. The owner showed up the day I called on two separate occasions. Nothing like great service during the busy season. Thank you.

Recently I had my air conditionier and furnace replaced by Leif's Performance Heating and Air and am very satisfied by their service. Leif provided great honest service and answered any and all questions that I had asked. He was very knowledgeable on all products and provided fair competitive pricing. I would recommend Leif's Performance Heating and Air to anyone having issues or questions with their home furnace or AC systems.

I've worked with Leif on numerous occasions. He is my go to man for these types of repairs. He is truly dedicated in service to his customers, being there to rescue your family in an emergency. One time helped get my furnace fixed in the middle of the night during winter.

Our furnace decided that it had done its job and quit on us on a cold chilly morning in December of last year. Leif and Joe came to my rescue and install a new furnace the same day. I couldn't of ask for more. Thank you so much Leif and Joe!!!

Very knowledgeable about my heating system. Another contractor worked on it for hours and ordered parts that "might " work. Leif was on the job for only thirty minutes and didn't replace any parts and had it running with very high efficiency. Will call him for future service needs!

We have a child who is medically fragile and cannot handle cold or heat. The temps in Sheboygan have been high the past couple of days and our air conditioner wasn't functional. Leif responded to our call on a holiday weekend and had our unit repaired in a few hours. We could've ended up with our child in the hospital had we not found someone to do the job for us. We're both grateful for the kindness as well as the expertise Leif brought to the job!!

Leif came and quickly diagnosed the problem with our air conditioner. He had all the necessary parts on the truck and had it up and running within 15 minutes. The repair charge was reasonable. I would recommend him for your HVAC needs.

Awesome experience using Leif's. I called on a Saturday morning when our AC stopped working and they were there in a few hours. Personable, reasonable and timely-can't ask for more.

I highly recommend Leif. I called him on a Saturday because my central air unit wasn't cooling properly and he came right out. My unit is 16 years old, but he didn't try up-selling me to a new one, which I appreciate. He was very thorough and answered all of my questions. His rates were very reasonable. I'm enjoying the cool air as I write this review. Thank you Leif.

Leif has worked on our home's heating and our businesses ventilation and AC. He's been highly responsive and done reliable work with both. We are so happy to have an honest, dependable repairman for all of our heating/ac/ventilation needs.

My central air unit wasn't working . I called on Thursday at 8pm and I got a appointment the next day. They came out at 2 pm on Friday and was friendly and got right to work. He diagnosed problem in a minute and the total job is done in 10 to 15 minutes. He was very professional and I would recommend him to anybody.

Leif was very professional and help me SAVE some money, I would recommend him for your heating or cooling problems!!

Excellent service! Leif was professional, friendly and helpful in finding the right furnace for us. His knowledge and attention to detail was evident during the installation and he completed the work in a timely manner. The furnace continues to run efficiently and I would wholeheartedly recommend him.

Murphy's law struck me in the Polar Vortex of 2019 with -54 degree windchills. I called Leif as he had provided me with prompt, quality, expert service a couple times in the past. He lived up to his reputation, quickly diagnosing the problem and giving me options.
I chose to replace my 30 year old furnace rather than do more repairs. 24 hours later and it is installed and I couldn't be happier with the whole experience. Professional, great communication, and clean-up. Highly recommend! Thanks again, Leif!

Very knowledgeable, trustworthy and honest business. We highly recommend their services and will be using again in the future!

Leif was prompt and professional. He was able to replace my 20 year old AC unit the next week after providing an estimate. Highly recommended!

Not only did he do a 1st rate job on my furnace tune up, he took the time to explain how the system worked (very helpful for a first time home buyer!). Thanks Leif!

Services: Install AC, Install heating system
Positive: Professionalism, Punctuality, Quality, Responsiveness, Value

Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Great service! I would recommed them to anyone.

Positive: Professionalism, Punctuality, Quality, Responsiveness
We recently purchased a new home, which is heated entirely by an in-floor heat system driven by a boiler, which had stopped working due to a board failure - right before several days forecasted to dip well below freezing. Leif took our call late in the afternoon and was there first thing in the morning to assess the situation, drove a significant distance to procure parts, and had it up and running by that afternoon. We were incredibly impressed and appreciative! Thank you Leif!
Service: Repair heating system

Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
SO THANKFUL that we went with this company for repairing our a/c. He was professional in all regards and even took time to explain and show me what the issue was. We will ONLY be working with Leif at Performance Heating & Air from now on. YOU SHOULD, TOO!

Positive: Professionalism, Punctuality, Responsiveness
We moved into a new home on Friday and our A/C went out the next day. We found Leif's business through a google search and a quick call, he was able to be there first thing the next morning.
Leif was extremely responsive and had our A/C up and running in no time! We will definitely be calling him again!!
Service: AC maintenance