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.

Had a frozen pipe and couldn't figure out where. Called and had service in about an hour! Tech…read moreBalen was SUPER helpful and gave me tips to help prevent it happening again. 100% will call again for any plumbing needs.

Their technicians - for the most part - are good. However, their prices are way too high, and their…read morecustomer service stinks. It takes 5 phone calls to get anything done because all I get is the stupid AI rep who can't solve any problems. I've heard they've been bought out by a national company in the past year, and changed a lot over to AI. I don't think they are locally owned anymore. I'm wondering if they are not hiring people to answer phones (or worse - letting people go) because all I get is the AI rep.

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.

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.

Ok, I called here to have service done on my HVAC. The system had service records on the furnace…read moreitself from Hillestad. The initial woman who answered was nice and directed me try some trouble shooting before we had them come out, fair enough. That didn't work so I called back. The next woman who answered seemed confused completely and said they had an opening a full week later... I was slightly confused by the long wait. She seemed to go and try to get sooner appointment while I waited for 5 min on hold. From there someone else picked up. It may have been the first woman I spoke to. That person then said "we have only been to that location (my address) three times." Then silence. Ok??? What does that mean, I asked? No answer. Then I was questioned about my ownership of the house etc and how long I'd been there. Ok not sure why that matters. It never has with any contractor before. Then more repeating "we have only been to the location 3 times." Ok what does that matter? " We are not Trane dealers." Was the answer. I said I understand and if they don't want to make the service appointment I can call someone else. "No no! We can do it." Ok I said. The I proceed get more questions about my ownership or how long I've been in the house. As if that is suspicious or preventing them from making an appointment to come out to my place. One of the most bizarre customer service interactions I've ever had. Weird! I said I was going to call someone else and hung up. Try better next time Hillestad. At least just be upfront and say you don't want to help or just to call someone else.

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.

Dealing with their AI answering service meant they didn't bring the right damper to my job. I…read morecalled them because they replaced my last damper. So now I'm paying them to drive over town to get the correct part. Charging $195 per/hr is for their technical work, not for driving. I don't feel that's my responsibility since they replaced my last one. So I spoke to the manager and he told me to bad, our AI doesn't always get things right. And charged me in full. I own a business and go out of my way to be fair with my customers. In my opinion this was not fair. Thumbs down!

We had Harker come out for an initial assessment and maintenance for our furnace and AC - they came…read moreout promptly (non-urgent service) and were also able to do maintenance on our humidifier system at the same time. I appreciated the tech's assessment and recommendations about frequency of maintenance needed and setting expectations for future replacement (we have an older furnace so I suspect it's coming sooner than later). They had a good deal on "early bird" maintenance and discount on multiple services - luckily nothing else was wrong so no repairs were needed, but I thought it was a pretty reasonable service price overall!