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

I worked with Droegkamp to have a heating unit added to my garage. They came out and discussed…read moreoptions for the unit, its placement and how best to run the utilities to it. Once the unit came in, the installation crew did a great job getting things up and running and cleaning up the work site. Really pleased with Droegkamp!

Company installed all my HVAC equipment when I built my home 5 years ago. Quality work, friendly…read morepeople. Also thorough routine service. Highly recommend.

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 air conditioning unit was leaking on the basement floor and after a call to Weyer & Sons an…read moreappointment was scheduled for a few days later. They are extremely proactive in getting to you sooner rather than later, so only a few hours later after a customer cancellation, the repair was made and we are up and running smoothly. Weyer & Sons is the only company I have used to service our air/heating needs, and they deliver with fast, friendly, and honest service at a very fair price.

Got to love Weyer and Sons.We have been using them for 18 years.Best family ran business.Honest and…read moreefficient. Karen Gibbs

It's mid-December and the temperature is dropping to zero tonight, so of course our radiant heat…read moreboiler pump started making a horrible noise. I called Gross Heating on Monday to have someone come out asap. I was told Wednesday morning was the soonest they could make it. I was reluctant to call another company because in the past I had a bad experience with another. The last time Gross came out, they did a great job, so I called them back and said okay to Wednesday. They said they could actually send someone out Tuesday, late in the afternoon. The technician came out and apologized, saying this job may take more time than we have today and run into a lot of overtime. So, a new appointment was set up with another tech for Wednesday morning. In a way I'm glad this happened because the new tech was excellent in every way. He had the part I needed on his truck and had everything completed at noon. While he was there, our daughter called saying you won't believe this, but my boiler stopped working and I have no heat. Gross had anticipated the tech would be at my house the entire day. I asked if we could go over to her house to take a look at her boiler. Gross said okay, so off we went. She needed a new pump motor, which luckily he also had on his truck. In conclusion, both of our heating systems were fixed in the same day and at what I feel was a reasonable price. I trust Gross Heating and wouldn't use anyone else.

Once again, Gross Heating to the rescue! While they didn't remove the squirrel from my furnace,…read morethey dealt promptly with the aftermath. The owner, Randy responded to my emergency call where we determined I didn't need an immediate service call. The next morning Mike , the technician, repaired the damage and even tried to determine the squirrels entrance point. Competent, professional and polite- like all Gross employees- Mike determined it had to be the chimney. I don't know why anyone would call any other company! Thank you Randy and Mike. BTW, the squirrel lived!!

Joe did our annual service this year and was excellent, as Nimmer always has been for us over the…read moreyears. We have multiple units that are impeccably serviced and maintained by their technicians. They always let you know when they are on the way, are always on time and always provide a name and photo of who is coming. If you are hesitant to try a new service, I recommend this one. We first tried Nimmer years ago and haven't used anyone else since.

Nimmer has been very helpful and flexible with services, when my furnace blower was dying and with…read morereplacing the furnaces and ac's. The technicians have gone above and beyond, especially Pat and Josh. My house is crazy, and it presented problems that weren't expected, and they came up with solutions to those problems. They have been wonderful to deal with (office staff Malinda and Beth, and Brian who gave me a quote for new units as well as Pat and Josh). I highly recommend them.

i had a great experience thanks to technician Jose Rivera. Friendly, knowledgeable and patient…read more Took the time to explain things to me and answered all my question. Did a wonderful job from start to finish.

Joe is so thorough and professional, explains things simply, and answers all questions…read moreknowledgeably. I don't think I've ever dealt a service tech as kind and respectful. Before the appointment, I was hoping that he'd be "my" tech. We did discuss a possible add on for air quality, and he left information about it to review.

I had the luck of my heating system crashing on Christmas, but luckily I was able to get hold of…read moreShane at On Time Heating & Cooling when no other HVAC companies were available. He was over super fast and quickly diagnosed the problem with my system. We went over a few options and all questions I had. I ended up upgrading to a new furnace and had it installed only a few days later. The install techs were prompt and courteous and did a great job. I now have a much improved air flow in the house and peace of mind knowing the new system will last a long time. I also purchased the maintenance plan which not only saved me money on the initial service call but will save me on future calls and includes my spring and fall tune-ups. I would definitely recommend On Time Heating & Cooling for your HVAC needs.

On Time Heating and Cooling is a great and on time. I've used them for my furnace, my…read moreair-conditioner and to install a new water heater. Everyone I've dealt with (Shane, Dion, Zachary and Travis) have all been very knowledgeable and know how to get the job done right. I would highly recommend them to anyone looking for a great HVAC company.