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Satisfaction Guarantee

At Martens Heating & Cooling our core principles of integrity and craftsmanship drive us every day and set us apart from our competition. Our goal is to provide you with the information you need to help you decide which personal comfort options are the best fit for you. We do not use scare tactics in order to sell you something you don’t need. At Martens Heating it is important for us to have a personal relationship built on trust. We will do whatever it takes to make sure you are comfortable and happy in your home or business. Whether it’s a custom crafted system or a routine furnace repair you will be handled with care by our top notch technicians. If integrity and craftsmanship are important to you choose Martens Heating to be your HVAC contractor. At Martens Heating & Cooling we aren’t comfortable until you are.

Jason Martens - Martens Heating & Mechanical

Hey, I'm Jason Martens

Martens Heating & Cooling has been a family owned business for more than 40 years, and I pride myself on being the 2nd generation to focus on keeping your family comfortable. Our HVAC service technicians are always ready to help you in your time of need, day or night. If you ever need an HVAC contractor, it's as simple as clicking the call button below.

What Our Customers Say

Cristin Gonzales1/12/2022

Ryan was awesome!! Furnace not getting up to temp.....it was clogged!! My fault....no maintenance! I was working from home on a headset so I couldn't talk to him. He did his thing.. .used whatever of mine he needed to without bothering me. He was awesome and understanding! And...for me this is a huge kudos.....he is the first service person in 21 years to shut off EVERY light when they are done!!!!! I almost appreciated that more than my heat!!! Lol

Tina Krueger1/08/2022

Great to work with! We had a new furnace, AC and thermostat installed. Showed up on time and everything works great. Very professional and extremely helpful.

Roger Siddons12/14/2021

Highly recommended. They are very professional and take time to explain options and issues. Friendly and easy to work with.

Santiago Sanchez12/10/2021

Jason was prompt, knowledgeable, informative, professional and very helpful explaining the function of the heating system when asked. I will call Martens Heating and Cooling in the future as needed, and highly recommend their services to others.

Jeremy Thompson11/18/2021

Jeremiah showed up on time, was professional, super friendly and clearly explained to me what maintenaince he performed. There was a part that wasn’t available, he came up with a clear path to getting the work done.

Brian Eroh10/29/2021

Prompt service they found the issue right away very professional

Jean Gaetzke10/25/2021

The men that we had come here were polite and they came in the slotted time that was given. We recommend them to a few of our friends who are looking for work to be done in there homes.

Martin Duxbury10/20/2021

Fast response to my request for a furnace service.
Txted me when technician was 20 mins away

Rudy LaKosh10/11/2021

Knowledgeable of our system
Good parts availability. Pleasant tech.

Joe Corbin9/29/2021

The technicians showed up on time and finished before the estimated time.They worked quickly and courteously and cleaned up the area. We will be warm this winter thanks to Martens Heating and Mechanical!

Patricia Jones9/22/2021

Prompt, thorough service. Maintenance for the year is done!

JB Thompson3/11/2021

A technician arrived on time to do a fall heating service and check on our furnace. The technician was very informative on what he was going to be doing. Being from Oshkosh, I wasn't sure that they would want to travel all the way from Omro to service my heating system. There are many companies in Oshkosh, right? (not like Martens)

After our experience with Martens Heating we will be calling them every time. The office staff was super friendly.

They came back another time to clean out our vents in our house, (needless to say) they cleared out a lot of soot-like substance.

We are very thankful to have Martens Heating come to Oshkosh to service our furnace, it is a huge investment and we want to take care of it.

Thank you very much for your service and attention. We highly recommend you to our friends and family.

Victoria O11/15/2020

We have worked with Martens H&M many times over the years with both of our homes. We have always been very satisfied with their service. I have also had M H&M repair or adjust outdoor AC units for my landscape customers. They are a trustworthy local business. They are always available if we need them.

Cindy Barter11/15/2020

As a younger single mom, at a rental home, my furnace died. I called Martens Heating and Cooling in the middle of the night and by the next day when I returned from work a new furnace was installed! Service was fast, friendly, and, great quality without further issues. Martens Heating and cooling truly cares about their customers, this was evident in their communication and quality of work. I would recommend and have recommended this business to my friends and family.

Katie Stinson11/15/2020

Great customer service and very responsive. Our AC went out on a 90 degree night and they fixed it for free to ensure our family was comfortable until they were able to install all new HVAC shortly thereafter. Highly recommend!

Financing Options

Brought to you by Wells Fargo

Click the Learn more button to get started. By doing so, you will be considered for credit to cover the cost of your new hvac system.

Buy today, pay over time. This credit card also brings you revolving line of credit that you can use over and over again, special financing where available, convenient monthly payments to fit your budget, easy-to-use online account management and bill payment options. This credit card is issued with approved credit by Wells Fargo Bank, N.A. Equal Housing Lender. Learn more.

Martens Heating & Cooling