5 star - came out same day. did a couple additional maintenance items at the end which was nice cuz…read morewe were already paying for the full hour of labor. Showed me how to properly adjust settings on water softener as well.

They are always able to come and fix our furnace if we have issues. Usually less than four or five…read morehours to arrive, even in midwinter. Great service, friendly and fairly priced.

Nordic air fixed my thermostat problem with the utmost professionalism, and super quick to boot! 10…read moreout of 10 would recommend, great value as well.

Very good experience. Reliable, respectful arrived in time. The job was done in timely manner.read more

The speed of service and the friendliness of the staff is a five star review. Manny the repairman…read morewas very nice and his communication with us was great. The reason of the two star is the job that was done. I was expecting Midwest Heat & Cooling to replace my GE AC wire. The wire was completely cut in half by my puppy, thus the reason of hiring them. I paid over $200 just for them to tape the wires together. My AC unit still does not work and now I have an electrical hazard that I now have to deal with. 10/10 Friendliness 0/10 Reliability I do not recommend.

They charge me almost $500 to switch my central air fan from medium to high. Do not do business…read morewith the company

We operate a short term rental home and our furnace went down on a Saturday night which was also…read morepart of a holiday weekend. I had not used Westenn before and wondered if any emergency service repair companies would be answering during the holidays. My call was promptly answered and a service person was on his way. He even had the part we needed on the truck. We were up and running within an hour. Our property manager also commented that it was the fastest response she had ever seen. Westenn will be our new service provider and I can't thank them enough for the great after hours service and especially during a holiday weekend. Last but not least, the pricing was fantastic and so fair especially because it was a holiday weekend!

We needed to replace our furnace, and Ray was referred to us, by a mutual friend. We are so happy…read morewe went with him!! Ray came out on a Monday, to see what we needed, had the estimate by Tuesday, parts ordered and available by Wednesday, and install on Thursday!! We couldn't be happier with how timely this went down, the great installers that came out, and it didn't cost us a small fortune!!! Thank you, Ray and Team, for a great job...you will be highly recommended to our friends and family.

Very knowledgeable serviceman who answered all of our questions. Very professional yet with a…read morepersonal touch. Was truly interested in our specific concerns and questions. Did not take long to arrange an appointment. Offered suggestions on best way to set and regulate our furnace. After many years with another company that we've learned to distrust, a change was necessary and Donovan & Jorgensen definitely left us with a very good impression.

Just wanted a ballpark quote on my boiler that's working but acting up. To start they demand info…read morelike address and a phone number straight out the gate, I'm sure it's so they can harass me later with "do you still need" calls a week from now and when you give it you find out they charge $100 just for a diagnosis. Don't waist your time They clearly don't want the business.

Our AC stopped working in this hot and humid weather. I called Scott at Kozy Comfort and within 45…read moreminutes he was here and replaced a bad capacitor and our problem was resolved. I would highly recommend Scott for any of your HVAC services

From the owner: Specializing in new system installation, residential heating and cooling service and add on indoor…read moreair quality components.

What can I say about these guys? As I was shopping for a new AC install, I wanted places that would…read moregive me quotes without having to come to my house. Some did, some didn't. Now Forced air systems is an HOUR away from me, so when I contacted them, I told them I completely understood if they wouldn't come out this far. They didn't care about that!! A lot of places wouldn't have come this far. They told me to take pictures of some things for them because given how far away I was they wouldn't be able to give me a quote in person(that was great by me). I took the requested pictures, sent it to them, and they quoted me a GREAT price. The next day I texted them back and said "let's do it". A week later(today) they came and installed it and did an impeccable job!! Sent me pictures of everything when they were done, and it looks even better in person than it did in the pictures!! I can't recommend Ben and Jeff enough! This was by far the best experience I have ever had with any service company. Will not hesitate to use them again in the future. And oh my goodness that Warranty! absolutely will not find another install warranty as good as theirs is! Thanks Jeff and ben for the great work, great communication and great price! A++++ all the way around!

air conditioner check, very satisfied, value good, will be a forever customer Ben was the bestread more

I'm not big on writing reviews, but this service was exceptional…read more My heat went out last night during the Packer game. I called as soon as it was over thinking I'd have to leave a message for a call back in the morning. Nope. The owners wife was so friendly despite it being late on Sunday. They answered the phone, offered to come out that night, but opted for an appointment during regular hours. Are you ready for this? They got me in the next morning, diagnosed it right away, ran to get parts across town, and had them installed so fast it was spooky. I'm hesitant to trust heating and cooling companies, but was seriously impressed. They'll be coming back for a clean and check on my furnace and A/C unit this spring. Great job, Russ. Yep, the owner of the company is still in the field

Turned on the air yesterday so John could come home to a cool home after a day of construction…read morework. No cool air. John got home, called Russ as he had previously used him for AprilAire. Before 10 am today cold air is blowing! VERY nice, professional, reasonably priced, transparent in their work, open for any communication or questions during and after. I feel TOTALLY CONFIDENT giving this company 5 WELL-DESERVED stars!

AC was out. They said we had a leak and either $3000 to repair or $8000 to replace. Plus they…read morechanged out our thermostat for No Reason and it sucks: no directions given. We got a Second opinion and for $700 they fixed it!

We had a new furnace installed in 2023 and a new air conditioner in 2024. We signed up for the…read moreannual "Maintenance Agreement". Well, we are 100% satisfied with the quality of workmanship, professionalism, prompt service, friendly attitude and excellent products sold. We have never needed a service call on either machines to date. The annual maintenance is such an outstanding offer. It gives you peace of mind that your investment is being taken care of. I would love to recognize Ray Seeber, our technician for his outstanding quality of work. He was so informative, patient and respectful. Thank you Ray, we look forward to seeing you again. Kettle Moraine, you are certainly the BEST!!!! Mr.& Mrs. O'Brien

I just really appreciated what seems like an honest assessment. I was looking for a second opinion,…read morebecause two other companies had recommended major, costly repairs or replacement for my gas furnace. The Grenz folks came, carefully looked at the unit, and said, "If it were my furnace, I wouldn't do anything. It is running the way it's supposed to." This second opinion cost me something, naturally, but it also saved me between $5,500 and $19,500 (two quotes from the other two companies). Jim seems like a straight shooter. I'd recommend you give these folks a try.

He called me back and talked me through the fix. He did not wait to come out and wouldn't take any…read morepayment for his assistance. He clearly knew what he was doing. He was able to talk me through several troubleshooting exercises without seeing the gas fireplace itself. If I have any HVAC or fireplace needs in the future, I will definitely use Grenz