I've worked with Andy's several times -- Kevin, who may be the only guy? -- and he's great. He…read moreclearly loves solving problems and I really get the impression he's honest. The first time our furnace was leaking water. He fixed it for not much money (I don't remember how much), warned us if it happened again we'd probably have to replace it, and that was like a year or more ago. All has been fine. The second time was the first really hot day of the year. Our AC stopped working. He came out right away, did a great, fast, and very competent job, and fixed our problem for $200. I trust this guy.

3/12/2025 Just had Tim Waller out to service my HVAC system. No problems, but good to keep up on…read moresemi-annual check-ups for furnace and heat pump. Tim went right to work, explained things to me, and is a very pleasant workman to have at the house. Andy's takes good care of my system! June S.

Cardinal has been the BEST company I've experienced so far at my house. I've also used Action--they…read morewere terrible in comparison. 1st call to Cardinal was in a panic with the sudden loss of AC in a 90 degree day. 5 animals in the home. The person with whom I spoke understood how dangerous of a situation this was and a service person was scheduled that day. 2nd call was for electrical work--not urgent but they happened to be able to squeeze me in on the same day which was probably rare but amazing! Best parts of this experience: 1. Friendly and empathic front team who got me scheduled ASAP. 2. Text prior to the service person's arrival with their pic and some info to help personalize this 'stranger' 3. The service people themselves--extremely competent, focused, and very personable. I only wish they serviced commercial properties so I could have them out to my business!

Their quote was 2.5 times higher than two other local businesses!! Absurdly high! No way was the…read moreamount of work I was estimating worth the same às a slightly used car! $9k for what is probably 2-3h work is laughable!!! This makes me wonder what they are charging other people who haven't researched the things they want to the same degree I have. It's almost criminal. Their estimator was very pleasant, though. And their communication is quite good. Maybe that's where the extra $5k is required!!!.... Complete BS

WOW!! RUN!! Don't walk!! These guys are AMAZING!! So.... I live in a condo complex that…read morewas built in 1988. The owners were instructed that we needed to have our dryer vents brought "up to code" as most of the vents had become disconnected... and were venting somewhere inside the building.. but not venting out side the the building. Argh... a challenging task for sure. I called several companies to come out and give me an estimate. Every single company I called said "I will find your disconnect, but you are responsible for replacing your drywall, painting, etc" Not good news. Then... Ducts On Call came out... and they spent 4 hours researching... trying to figure out which vent was mine that exited out of the back of the building. But since every single dryer vent was disconnected in the interior of the building... there was NO way they could figure it out without tearing up the ceiling in mine, and my neighbors units. I was SO frustrated. But then Nick suggested we put in a new vent duct from my unit straight out the front of the building. It was my only option. He said we would need to schedule a time in the future... but I told him I needed it done in the next 3 weeks. He said... "I will make this happen for you" Well for starters... he DID NOT CHARGE ME for the 4 hours he spent trying to figure out which vent was mine. HE SAID... "I didn't solve the problem.. so I will not charge you" What?? 4 hours of your time for free?? Moving forward..... Nick and his crew came back 2 weeks later to install my NEW, up to code dryer duct on a new path out the front of my condo. I was SO not looking forward to having my ceiling ripped open to have the duct installed. So the day had come. Nick arrived before his scheduled time and he went to to work. I asked him... "How much of my ceiling do you need to open up?" He said... "I'm not opening your ceiling... I'm going to drill a hole in the exterior of your building, and slide the new duct straight back to your dryer connection" I was beside myself! I could go on and on... but let me tell you, this guy is the real deal!! He is incredibly gifted at what he does... super friendly... hard worker, and gets the shit done!! For what I thought was going to be a day of HELL... turned out to be a day of BLISS. I CAN NOT recommend this company any more than I do!! They were AMAZING... and the job was smooth, and quick, and so much easier than I dreamed it would be. Let me state again... that I called several companies to get the job done.... and these guys were one of the newer companies I called.... but I hit the jackpot!! Trust me!! If your need Duct work done... these guys were stellar from start to finish. And no... I'm not related to them... I'm not his high school friend... and I knew nothing about them, but I took a chance... and boy... am I glad I did. Amazing! THESE GUYS KICK ASS!! Give them a try!! Thank You Ducts On Call!!

OMG, these guys are great! Nick and Kim are awesome! My son in law blew out our dyer vents and…read moredidn't get the pipes put back together. Took Nick & Kim like 5 minutes to reattach everything at no charge!

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

Bought a house where the previous owner vented the dryer into the crawl space. Needed a 4" hole…read morecut into the wall for venting and siding is large natural stone. Contacted at least 5 businesses, only two replied. Tradewinds charged half of what the other business charged. Work was done as communicated and have not had any issues. Price quoted was what I paid, not extras.

Furnace service. Trade wind is now Kettle Moraine Heating and Air Conditioning. Still great.read more

Matt was great. He replied quickly when I first reached out, made an appointment to look at the…read moreproblem and give me an estimate, showed up on time, gave me the estimate, then came back and did exactly what he had said he would do, plus explained what he was doing and gave me some great advice, and ended up charging me a little less than he had estimated. These qualities may sound simple, but in my experience, unfortunately, having people show up when they say they will and doing what they said they would are all very rare. Matt is a real treasure.

Matt was exceptional! He washed my windows, removed trees, clean my dryer vents, put up a shower…read morehead, cleaned my furnace and AC unit. My windows like brand new and all of his work was outstanding! I highly recommend him! Plus the prices were outstanding !! He's a true professional at all of his tasks he completes for your house.

Parker from Pharo was prompt, courteous and knowledgeable. He went right to work to solve why my…read morefurnace wasn't working and not try to tell me it was done for and I needed a new furnace. He replaced a part and got my heat on within an hour. Honest company that won't rip you off. Highly recommend!

Needed to replace our 20 year old A/C unit and the prices here are about the same as other…read morebusinesses. It wasn't an emergency but the job was still done in less than a week. The service tech Ryan was the same guy who installed the original unit as it turned out. He's polite and knowledgeable and had the who job done in less than three hours. Everything is working well and now I'm ready for whatever weather August throws at us.

Ralph, the technician, was very knowledgeable and polite. He covered everything to check my air…read moreconditioning system. I would definitely do business with Hillestad Heating & Cooling again.

This is the third time that I have used Hillestad. For a large local company, their services are…read morefairly priced and you get the benefit of very skilled employees and modern billing/site.

Warren is always responsive and trustworthy. I called on a Saturday morning when my furnace was not…read moreworking (during freezing weather) Their emergency tech ( Curtis) was here in about an hour, got my older furnace working again, explained what was wrong and did not try to sell me a whole new furnace. It is very valuable to have knowledgeable people available. Warren has never let me down.

I requested a bid. Salesman made an appointment with me. I shot the better part of my afternoon…read morewaiting for him. No show . No call. No message. Others eagerly responded.

Great job. Had them out for a furnace tune-up. Efficient as always and it like their early bird…read morespecial!

Worked with Roger, disrespectful and rude. He did a repair without confirming with us. He came…read morelater than the hours we asked and charged us for that. He was also extremely careful not to tell us any of the charges until the invoice. I would never work with this company, discrimination is extra. I wish I could give 0 starts!!