Caldera A/C & Heating LLC
Caldera A/C & Heating LLC

Caldera A/C & Heating LLC

About the business:

At Caldera A/C & Heating LLC in Fond du Lac, we specialize in providing comprehensive HVAC services to homeowners. Our expertise lies in HVAC contracting and air duct cleaning, ensuring your home's climate control system is running smoothly and efficiently. We understand the importance of a comfortable living environment and strive to deliver top-tier solutions tailored to your specific needs.

Whether you need installation, repair, or maintenance for your heating or cooling system, our team is dedicated to delivering exceptional service with professionalism. We pride ourselves on our commitment to maintaining clean air ducts, improving indoor air quality and energy efficiency in homes across Fond du Lac.

With a focus on customer satisfaction, we invite you to join our growing list of satisfied clients who trust us for all their HVAC needs. At Caldera A/C & Heating LLC, we're more than just an HVAC services provider—we're your local partner in ensuring a comfortable and energy-efficient home.

Services:

All services 2
  • cleaning

    Hvac Contractor

    In Fond du Lac, we're Caldera A/C & Heating LLC - your reliable HVAC Contractor. Our services ensure a comfortable …

    Book from $50
  • cleaning

    Air Duct Cleaning Service

    In Fond du Lac, we're Caldera A/C & Heating LLC – your reliable HVAC partners. Our Air Duct Cleaning Service …

    Book from $50

Photos and videos

Hours of operation

  • Mon – Sat
  • Sun
  • 8:00 AM – 9:00 PM
  • 9:00 AM – 5:00 PM

Latest reviews

  • 26 June 2026
    5

    Was a little nervous reading some of these reviews prior, but Caldera did an excellent job fixing our AC and replacing our capacitor! We have HSA home warranty. Luis and Omar were very friendly and respectful. They even arrived earlier than they planned to on the day of when I called them to let them know our condo office and maintenance personnel would be out of office if they came later in the day. They fixed the issue quickly and also took out our old yucky filter for us and told us exactly where to get a replacement filter and what size. Really appreciated their responsiveness, timeliness, and courtesy!

  • 26 June 2026
    1

    I won't even get started on American Shield and how unsatisfied we are with this warranty company. They cover barely anything when it comes to cost but Caldera is an awful service to use. We got scheduled out several weeks when our AC went out and had to find a hotel for several days due to the 100° heat only for Caldera to reschedule with us and tell us they'll have to come next week. Our house would get up to 96° and we have two small children and pets. We had just bought our house a few months prior so didn't know the AC would go out. The day of the appointment comes and of course we're told they can't make it by that time the afternoon but can be there around 11 pm. I said no and to come the next day. He says he can be there early in the morning. Wouldn't you know he doesn't show and says he'll be there in the afternoon and the afternoon rolls around and no show again . He ends up showing at our home after 10 pm when my fiance is home alone and our children are supposed to be sleeping due to school the next day and my fiance wanted to be in bed due to going through chemo treatments and was exhausted and weak. Not to mention his wife just sat out in the truck the whole time. Completely unprofessional and very very weird experience. You do not as a business show up to someone's home to fix their AC after business hours and at 10 pm no less. You show up between 8-5 and that's it and don't continue to reschedule times. Show up at the time and date you said. Ridiculous and then they don't agree that they're unprofessional and it's fine to show that late. Not a good company. I'd give 0 stars if I could. AC isn't even fully fixed either.

  • 26 June 2026
    1

    Wow… never have a business experience like this one. Came out replaced my whole air conditioner unit, because my previous one was leaking. Charged me $5,500. Was fine the first summer, now this summer is around and it’s leaking ALOT again. Hasn’t even been a year, and they want to charge me $100 to come and just LOOK what’s going on.. telling the lady in the office and she’s trying to say since it’s been OVER or CLOSE to a year(she couldn’t decide which excuse to use) she has to charge me $100… she ended up hanging up on me because I was so frustrated I cursed like the grown woman I am. Would NEVER recommend this company or people to ANYBODY.

    UPDATE : because it got worse than just this. After reaching out to the techs that came out and installing the unit, they apologized to me for how the lady in the office (owner) treated me and explained they charge a $100 service to matter what, doesn’t matter time frame but they lowered it to $75 for me for the inconvenience. I never got an email to confirm the appointment so I called the day they were supposed to come out to confirm, owner apologized for the convo that had happened and agreed to the $75, and confirmed they would show up that day to come look at it. About 30 minutes later she calls me to tell me her husband said they refuse to service me anymore because of the review I had left and because I am friends with a former employee with them that apparently didn’t work out. Even tho I have an invoice from them saying 1 year warranty for maintenance & equipment. They didn’t call me back that day, I sent an email of the invoice showing the proof of warranty and they replied and acknowledged the warranty but I still need to pay the $100 service fee, which I had already paid and they also called me liar about the tech saying they’d lower to $75 , so I sent the messages of the conversation proving they agreed to $75. Called back the next day and they tried to push it out another week to come and take a look, angry I agreed and paid the $100. My husband ended up going down and taking a look himself with a friend of ours (their old employee) and figured out the drain was plugged and causing the leaking. I then called them and canceled the appointment and they said they refunddd the $100. After a week & a half , the money was never deposited back onto my card so I called and they tried to tell me the payment never went through on their end so I double checked my statement and it showed it went through so I sent proof of payment to them via email and called back the next day and they then said the bank said they never received it and they would look into it. I waited 5 more days and it still wasn’t resolved, I called my bank to make sure payment was transferred and they confirmed it was successful. I went into office to try to get proof that it never was deposited on their end, the lady owner then tried to say it shows it was a merchant error and she would go to bank and see what went wrong. I then got a call from the guy owner only two hours later that they found it, that they had a lot of service fees deposits that day and they missed mine. Which shows that the owner lady was lying to me the whole time. Again, I would not recommend these people or company to anybody. They are not honest people and have no integrity.

Information

  • Name

    Caldera A/C & Heating LLC

  • Address

    231 S Main St