Kenneth Meuler
16:26 27 Feb 26
On time, did repair in timely manner, and left the area very clean and neat.
Gail Korb
00:45 27 Feb 26
We had a major AC melt down during some of the hottest days last month and needed fast and effective solutions. Interstate came through quickly and professionally ASAP. Their tech, Josh, was terrific and informative and solved a major defect he found; got the parts ASAP and took care of everything right away. A++
Gail Korb
09:16 26 Feb 26
Greg Farnham
14:36 24 Feb 26
Josh was on time for the service call; pleasant to work with; diagnosed and assessed the problem, and had the parts and equipment to solve the problem.
Greg Burek
23:19 23 Feb 26
Michael Smith
02:23 11 Feb 26
Technician was very helpful and knew what he was doing. Replaced several parts on the furnace under warranty
Jerry Weidmann
01:18 11 Feb 26
We have two furnaces and two air conditioners from Interstate. Our heat in one portion of our house was not working well. A tech from Interstate analyzed the situation, provided two alternatives, and after we selected a strategy Chris Carne came and updated the system within two business days and it works perfectly.
Mary Latz
19:32 09 Feb 26
Had a small furnace installed to heat our recreation room. Antonio and his assistant were very professional! Interstate Heating has installed all our furnaces and air conditioners for the past 50+ years and have always done a good job,
Patty
00:03 08 Feb 26
We have been customers of Interstate for 30 years--these guys are good! Their tech, Chris, is great...good at troubleshooting and always shows up in a positive mood and ready to tackle whatever the issue is. Whether regular maintenance or a problem to solve we always know Chris will take care of it. Highly recommend!
Andrea Munoz
17:44 06 Feb 26
Bill Hansen
19:21 02 Feb 26
Technician was on time and thorough. Very bright and articulate. A great ambassador to your organization. Thank you Tristen!
Kurt Anderson
18:37 02 Feb 26
Timely and reasonable.
Jennifer Thompson
15:32 02 Feb 26
R M
22:23 29 Jan 26
We had a new furnace with a bad gasket, causing water to leak beneath the unit, and rust inside it as well. Tristan was courteous, helpful, prompt, and friendly. We could tell that he cared a lot about getting the job done right, and he patiently answered all our questions. Great service and great technician.
Brett M
19:19 27 Jan 26
Emergency call for no heat was responded to Very Quickly. Thank you Ellen.
Gary McMurray
19:54 26 Jan 26
Very knowledgeable and exhibited a true understanding of the problem.
Thomas Gerger
18:38 26 Jan 26
Tristan was great!! Very personable and qualified. Answered all my questions too! Tom Gerger. That was Nov. 2025. Now today, Jan. 26,2026, Eric O. came to analyze a major problem with our furnace. Eric originally installed our Carrier system for us in 2007! He's extremely thorough and friendly. Turns out a new furnace makes a lot more sense than putting money into the old one. Very thrilled that Interstate will install the new unit tomorrow morning. Our fireplaces and electric space heaters have been running since late Saturday morning! Tom Gerger
James O'Laughlin
16:31 26 Jan 26
As the weather has been extremely cold -20's and -30's, all HVAC contractors are swamped. The Interstate Heating team has the man power to adapt to any situation. Very professional, on time and always a pleasure working with their team.Jim
Jill Sweitzer
15:45 26 Jan 26
Todd Mueller
00:52 24 Jan 26
Our furnace stopped working and they sent their technician. He found out that the gas value was bad and he replaced it. It worked. We were very satisfied.
Jeff Lombardi
22:36 23 Jan 26
Very competent and professional Technician - Dylan. He was courteous, professional and diligent while diagnosing a furnace issue at my home. Albeit, he gave me bad news that I needed a replacement he provided options and solutions to my problem.Very professional staff from my initial phone call to the visit and estimate.I highly recommend this professional HVAC business for your personal needs.Jeff
Neil W Holaday
19:30 23 Jan 26
The technician was great and very knowledgeable. Everything went well.
Brittney
18:24 23 Jan 26
Keith Nettesheim
17:39 23 Jan 26
Very helpful and explained everything in great detail. Thank you!Keith
Michael Schneider
18:52 22 Jan 26
Very good service tech, explained the details of the heating system functions. Very fast and knowledgeable. He even fixed a wiring error from original installation. Highly recommend.
Kenneth Romeis
15:13 22 Jan 26
Dylan showed up on time and ready to work. Excellent customer interface and patience. I had questions and Dylan had answers. He took the time to answer all my questions. Not only was he knowledgeable, he is a genuinely nice and sincere person.
james jarrett
05:05 22 Jan 26
Eric was very professional and he knew just what he needed to do and did it very well and since I was a electrical contractor for many years he would be the type of person that I would want working for me
Bob Mikulec
22:43 21 Jan 26
My Interstate Heating technician, Tristan, did a great job and answered all my questions about maintenance, condition and age of equipment, and operation of my smart thermostat.
dana gilboy
21:44 20 Jan 26
Great service from Interstate! Tristan performed standard furnace check and maintenance. Very professional and informative.
Brett Erickson
22:39 19 Jan 26
Johannes Schulze Vohren
21:51 19 Jan 26
The service technician was very friendly, answered all my questions and made good recommendations.
Carrie Jaskaniec
13:50 17 Jan 26
Tristan was on time, friendly, helpful, cleaned up when finished and I would highly recommend him as a technician!
Patti Sprague
18:38 15 Jan 26
Eric was professional and he was quick and honest. Seeing that my furnace is 38 years old I'm sure it's time for a new one and that's exactly what he told me.
Tara Salaks
15:04 15 Jan 26
Very fast and great customer service. Chris is great!
G Schmeling
20:41 14 Jan 26
Highly recommend. Have used them for 30+ years
JK
00:59 14 Jan 26
Tristan did a thorough job maintaining my furnace. During the routine maintenance, he discovered an issue with the furnace inducer motor (bad bearing) and worked with me to file the warranty claim. Thanks for the great service, Tristan! Now my furnace is running in tip top shape again.
Neal OReilly
16:53 09 Jan 26
Professional and very informative.
Angie
17:42 08 Jan 26
Elaine Hills
14:51 07 Jan 26
Last Thursday Eric, the Interstate technician, was at my home for the annual furnace check-up. He discovered a failed inducer, which he explained would result in zero heat. He also found two zone dampers that were making noises indicating failure was coming soon. Eric explained how the dampers work and why they are needed as well for adequate, even heating throughout the home. He ordered the needed parts and less than a week later all parts are replaced and everything is in perfect working order for another Wisconsin winter season. The professionalism, knowledge and promptness with Interstate Heating is at the highest level. I have never been disappointed.
Susan Haramaras
15:54 06 Jan 26
Josh arrived as scheduled. He explained everything. He was knowledgeable and efficient and completed the job to our satisfaction.
Chris or Beth Peske
14:59 06 Jan 26
Excellent service. Tristan was thorough, professional and informative.
Matthew Baker
00:48 03 Jan 26
Informative and professional. Did great work and cleaned things up.
1neilandkaren
21:00 02 Jan 26
⭐⭐⭐⭐⭐I called the morning after a holiday and Matthew was very helpful in getting us the support we needed. Chris arrived a little early and quickly diagnosed the issues with both our boiler and furnace. He was polite, knowledgeable, efficient, and cleaned up after finishing the work.We’ve worked with Interstate Heating multiple times, and they are always responsive and helpful—from the office staff to the technicians. They are honest and genuinely want what’s best for their customers. Highly recommend!
Karl Fritchen
17:51 02 Jan 26
Tristan did an awesome job! He communicated well about when he was going to arrive and then called me after the visit to outline what he had done and the costs related to it. Very positive experience and very professional technician.
Kathy Kowalski
00:01 01 Jan 26
Excellent prompt service.Technician found the issue quickly!
Harry Aghjian
17:26 31 Dec 25
Great service tech and solved the issue quickly… Tristen was awesome!
Julie Offutt
16:58 31 Dec 25
Tristan was amazing. He advised me to close vents/redirect air to the rooms that needed more heat and to leave on the fan to protect our HVAC system: : : he did suggest adding a line to the basement to give more heat as well which we will likely do.He was an extremely knowledgeable, skilled and kind service man : thank you-Julianne
Chris Peterson
21:51 29 Dec 25
Melody Ruhbusch
17:13 26 Dec 25
Considering this was the day after Christmas we were grateful that Jason was available to assist us with our problem. He was very friendly and informative. Explained our options without any pressure.
Phil Prange
19:27 23 Dec 25
The technician arrived early. He was clean, courteous, and competent.My heating issue was resolved quickly and explained well.Can't say enough good things about Interstate and their service team.Chris was excellent.Thank you
Joanne Nolde
21:17 22 Dec 25
Antonio and his team installed a new furnace. They were knowledgeable, on task, and efficient in removing the old furnace, replacing the new one, and cleaning up before leaving. They were friendly, polite, and articulate in explaining what they were doing and answering my questions. I would definitely recommend them to others.
Karen Wright
20:20 18 Dec 25
I trust Interstate Heating. We have used them for27 years. Tristen was very thorough and figured out why were not getting heat in our bedroom.It all boiled down to a small part that had to be replaced. He was very diligent in finding the problem. He was great!!!! He also explained everything to me.A big thank you to Tristen
Bubba John
15:05 18 Dec 25
Eric installed a Aprilaire humidifier for us. He did a great job and we are very happy with it. The service was awesome and we highly recommend Interstate Heating.
Kathy miller
14:26 18 Dec 25
technicians showed up on time, laid down cloth on the traffic patten to the basement as it was a messy, sloppy day. stated it would be about a 4 hour install which was pretty accurate. afterwords they cleaned up everything and could not even tell they were here.
Tom Gannon
20:31 17 Dec 25
Eric does a great job. He is extremely knowledgeable and is an excellent communicator.
Harry Clayton
16:42 17 Dec 25
On-time and worked clean and efficiently.The garage heater Turned out better than I anticipated!
Kathy Greb
20:11 16 Dec 25
Chris completed annual maintenance on my furnace and humidifier. Very efficient, pleasant and answered all my questions.
Jack B
20:02 16 Dec 25
Chris did our furnace maintenance today. He answered all of my questions and provided good suggestions for moving forward.
david carlson
19:54 16 Dec 25
Tristan did a great job. He explained everything thoroughly. He was extremely polite.
Mary Lou Moths
01:02 16 Dec 25
ETHAN Lipski is a great employee. He is polite, respectful, and efficient. He takes time to answer my questions. 5 srars, for sure!
SANDRA ROBACK
21:14 15 Dec 25
Wonderful team- customer service (Mathew) and their service technician Eric were both outstanding to work with. Eric's knowledge and his ability to get our furnace working in matter of 1.5!!
LBRC Account
17:39 15 Dec 25
The service was quick and efficient. They always provide top tier service. They are my definition of being very professional. Highly recommended.
John Bogues
16:14 15 Dec 25
Great workFriendly technicianFair price
Brent DesRoches
13:41 13 Dec 25
Interstate Heating replaced our 21 year old furnace and a/c with a Carrier cold climate heat pump and high efficiency gas furnace. I worked with Tom from sales to get a good balance of price and efficient equipment. He did a great job working through different options to show different price points. The install crew also did a great job. They laid down drop cloths to protect the wood floor and carpeting and they cleaned up well after the work was complete. The equipment installation and duct modifications look very well put together.
Ruth Hau
12:01 13 Dec 25
Great job, Scott was on time and very professional.
Lisa kuehn
21:48 11 Dec 25
Jim Sawyer
23:06 10 Dec 25
Tristan was able to explain exactly what was needed and provided a very thorough service of our furnace. I would highly recommend them and will continue to use them for our Hvac system.
James Long
21:30 10 Dec 25
Courtesy, knowledgeable, explained what he was going to do and reviewed with me what he did
J W
23:55 09 Dec 25
Tristan was highly knowledgeable and courteous. Possesses a high skill level, superior troubleshooting abilities and checked multiple system functions with various diagnostic tools. Went above and beyond to make sure everything was running properly. Great customer service throughout too.
mark waraksa
20:58 09 Dec 25
Nice gentlemen came to help me on the thermostat
Jim Wollin
20:53 09 Dec 25
Excellent service knowledgeable polite, service done in timely fashion. Would recommend him and his partner
Susan Eng
00:30 06 Dec 25
The pro did an excellent job of diagnosing the problem with my furnace.Im not happy with the warranty on the furnace, the furnace is only a little over one year old and the Carrier warranty only covered the cost of parts and not the labor which was $489.55! It seems a warranty should be better than this for a relatively new furnace. Also it seems that the problem with the furnace is one that occurs frequently and may occur again. It seems to me that the thermostat recommended by your company from the furnace company has more issues than my Nest thermostat which governs my other furnace just fine. If I require further service, i think changing the thermostat seems to be a better plan!
Chip Losee
20:26 05 Dec 25
Very satisfied, Tristan was awesome. Very professional and knowledgeable.
Amy De La Cerda
20:04 05 Dec 25
Interstate was amazing. From the empathy and friendly manner my initial call was handled, to the thorough way Eric explained what was happening, to our install, everyone was super polite, respectful, and did great job. Victor and his partner for the install laid down tarps and wore shoe covers to keep the pathway clean and even took extra steps to clean up the rust stains on the floor from the old unit. They also took the time to help us get familiar with our new thermostat.
Diane Zore
17:55 05 Dec 25
Tristan was here and fixed the issue, was professional and competent. We have been customers for over 25 years and rely on your company to always do your best!
Kathleen Dubiel
02:04 05 Dec 25
All was pleasant. I did pay cash and without receiving a receipt felt odd but was sent the reciept via email!
Amy Kinosian
15:15 04 Dec 25
keepSmiling
23:13 03 Dec 25
Joy Stein
15:45 03 Dec 25
Diane Brunclik
22:35 02 Dec 25
Austin was courteous and professional
Susan Masche
20:40 02 Dec 25
Clean unit now without dead baby mice. No problem with unit found.
Henry J Klein
19:39 02 Dec 25
Maggie Schroeder
14:33 02 Dec 25
Very prompt, explained everything.Trust them.
Bob Kachelek
01:30 26 Nov 25
Very friendly, explained everything he was doing. Knowledgeable and gave us good maintenance tips on our furnace and AC.
Gerardo Caballero
17:55 25 Nov 25
John Beauchamp
00:20 25 Nov 25
Eric did an excellent job in diagnosing and repairing the HVAC unit. Thank you for the great service!
Nicole Smith
22:03 24 Nov 25
Tyler was very knowledgeable and polite when doing regular maintenance on my furnace today. Great job!
Melissa Murray
21:35 22 Nov 25
Tristan was professional, courteous, efficient, and honest. He explained things to me in terms that were easy to understand and did not try to sell me things that I didn’t need. I would welcome him in my home again to service our heating and cooling system.
Julie T-V
20:32 21 Nov 25
They were neat, on time and fantastic to work with!
Carlene Wade
13:19 21 Nov 25
Great customer service!! Antonio was very professional and they did an awesome job. Cleaned up very well after they finished. We are very pleased!!
mary muntner
22:05 19 Nov 25
Trysten was very professional and knowledgeable. He was very pleasant and obliging. I would certainly like to have him do the work I have when i am ready. He is definitely an asset to Interstate.
Geri Gerschke
18:50 14 Nov 25
These guys are SO helpful and efficient and respectful.
anthony corrao
16:58 14 Nov 25
Tristin was very thorough and professional!
Christine Jahncke
15:32 14 Nov 25
Josh did an excellent job diagnosing the worn out part on my furnace and was great communicating with me during the repair. Thanks Josh for all your hard work and for making my home nice and warm again!
Wayne & Mary Jo Koch
00:48 13 Nov 25
Josh did his always excellent job on our biennial furnace check up.
Claudia Bechthold
18:19 12 Nov 25
“Jake was out early and got our unit repaired on one of the hottest days of the year. He recommended a replacement unit as ours is over 30 years old. He'll be back to replace.”
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- Mike B.
“Eric does the semi-annual maintenance on our furnace. He is always on time and gets the job done professionally and thoroughly. He’s always happy to explain what he’s done on each visit and give us tips on what we need to do to help our furnace run at maximum efficiency.
Eric brings years of experience to the job and it shows in the high quality of his work.”
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- Sheila B.
“Josh did an awesome job finding out what the problem was with our equipment. Very thorough when trying to find out what was wrong with our system.
Ordered the parts and repaired the system. Very knowledgeable, Respectful and professional. Answered all of my questions and gave me some helpful hints regarding our units. I was very pleased with Josh and Jake. I would definitely request these technicians for future work.”
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- Barb E.
“The two service technician, Tristan and Besto performed a seasonal service check-out before summer usage. They were excellent and provided me key information about my air-condition unit, filter, and brought to my attention the two vents in the storage room that we were not even aware of since we just moved into the home in late December. I'll be sure to use them again if anything would go wrong and/or for regular service maintenance and request the same two technicians.”
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- Scott C.
“Chris was on time and efficient, found the problem quickly and got the heat back on.”
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- Kevin A.
“Jason arrived early, worked efficiently. Replaced old central AC with new two stage system. Very professional and courteous.”
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- Michael C.
“Great overall experience. Appreciated the text reminders and notice that tech was on his way. Chris took the time to explain the issue in detail.”
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- Cheryl K.
“Josh did a great job pinpointing the issue with our geothermal system. He provided a workaround solution to keep the system running until the replacement part is available.”
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- Doug F.