AVOID this company. Their techs are low IQ and only intent upon selling overpriced maintenance plans and recommending a duct cleaning service. I had them out on August 29, 2025 because my furnace was not producing heat and could not hold a set temperature. Yet, when they arrived and turned the thermostat on, it happened to produce heat and all they did was let it run while yacking and saying they did not know why it did not run for me. They did not find any cause, left me with no warranty, did a lackluster maintenance check, changed the humidifer filter on the furnance, criticized my whole house filter system and charged me $400 for nothing. They also failed to let me know they charge a 3% fee for using a credit card. I could have wrote a check. I complained to the office that I was not told of their policy and the owner did refund the 3% charge. Into September and October the same furnace trouble kept happening until I called CHIPPEWA HEATING & COOLING at the end of October. A GREAT COMPANY, the problem was pinpointed and a new pressure switch solved my furnace woes. Call CHIPPEWA. Fair pricing, too. read more

The technicians are very knowledgeable about the different systems that they work with for their customers. Their service fee is reasonable compared to other companies. Also, I have been using them for over 30 years in my homes. Every year, I have them check my AC and furnace for the seasons. read more

Their response was quick. The Tech did everything he could and went above and beyond to get our air working again. Would highly recommend.

These guys are great. They never try to oversell me and they do some regularly scheduled maintenance so you can be ready for each season!

I am making this post as I am very disappointed in the company A to Zoff heating and cooling. I have dealt with them for over 20 years including two furnace installations and one air conditioner installation. The original owner of this company was very customer oriented and would do most anything to help you solve a problem. Now I had someone from a company that installed my most recent air conditioner who said it was a courtesy call to in check the furnace since I had bought the AC from them. He found that the heat exchanger was cracked and one of the tubes for the flame was rusted. I believe all this was from a problem we had earlier in April when A to Zoff sent someone out because the furnace quit working. They found that the manufacturer had got some insulation into the tubes which caused the furnace to shut down blew a fuse and damaged my thermostat. They said they had taken care of everything except for the thermostat which I purchased myself. Now with this problem I call and the general manager called me back and said he talked to the owner and the owner did not want to be bothered with this and said I should just use the company whose technician came out even though it's going to cost me approximately $2,000. Be very very careful of using A to Zoff. This furnace was brand new two and a half years ago and they are not standing behind their product. It is a carrier furnace. read more

the hottest week of the year, so far, and my A/C goes off on a Friday night. I called my go to guys at A-Zoff, and left a message. Have always had excellent and quick service, and this time was no different . I received a phone call shortly after. 9 A.M Monday. They told me they could come between 2 and 4 that same day!!!! The technician was here early and quickly diagnosed my problem. Even had the necessary part in his truck and better yet gave me a senior discount without asking! What a pleasure to do business with A-Zoff Heating and Air Conditioning. Thanks guys for another job well done! read more

We called Mike at A to Zoff about our furnace issue. They were backed up with service calls but Mike worked us in two days later. Brandon came out looked at what a previous serviceman said and then pulled the filter. Filter was restricting air flow. Previous diagnosis called for $700 in parts. Brandon's diagnosis cost me $1.79 at Home Depot. Brandon has serviced 6 furnaces, each several times, for my family and I. I am very happy that Brandon came out again. read more

We have used A to Zoff previously in the past but based on our most recent service call we will never, ever use again, it DEFINITELY pays to get a second opinion. We contacted A to Zoff in November 2021 to service a faulty powered exhaust motor for our gas furnace, and were told the part with installation would cost $1800 to replace and would not deliver for 2-3 weeks. The EXACT same part lists on Amazon for $149.00 and would deliver in 2 days, that is some markup on labor as it only involves a simple swap out of an easily accessible part on the exhaust pipe vented outdoors. Obviously we were quoted an extended delivery time, and excessive cost to obtain the part, so we would choose to go with a replacement furnace instead. The quote we were provided to replace with a 92% efficient furnace, which was not a current 2021 model, was $7,936. We chose to get a second quote from another HVAC installer and it paid off. We had a better, brand new 96% efficient furnace installed at LESS THAN HALF THE COST. I am an older woman and felt like the technician definitely was trying to take advantage of my age and believed I would fall for these overpriced tactics in fear of not having a fully functional furnace. read more

I waited 3 months before writing this review. A to Zoff switched out an electric furnace that was in my home when I bought it for a high efficiency gas furnace. I got 3 quotes before settling on A to Zoff and a referral from my dad who has used this company before. I was very pleased with the service from the quote to the install. These men were very professional. They cleaned up every bit of mess throughout the process. No left over anything for me to clean up. The gas pipe, electric, and exhaust pipes they had to run for the new furnace was a lot of work. It all looks very professionally done. The new furnace (with humidifier) has run as expected and we have had no issues. I will call them back for any future needs. Chris Davies read more

A to Zoff is a small family business that has been here for over 45 years. My husband and I wanted a well-established company for the work in the home we had built. I have heard stories of fly-by-night companies that are not there when there is a problem. They installed our heat and central air 11 years ago and we have had no problems with the system. Also, our monthly bills are very reasonable. They were a huge help in advising us as to which system to install. Most builders use the cheapest furnace and AC units they can find which lead to a much higher bill for the home's buyer. We chose A to Zoff based on recommendations of several of our friends. We were very impressed by both their service and product. The servicemen are polite and look normal. The office staff is happy to answer any questions you might have, The work was done in a timely manner. Once a year we have a maintenance check up done as this was recommended to keep everything in tip-top shape. read more