Heating Contractor

  • Factory Authorized Bryant Dealer- Sales & Service
  • Furnace & Boiler Installation
  • 24-Hour Emergency Service
  • Ductwork Installation
  • Home & Commercial System Services
  • Low Cost Gas & Electric Options

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  • Great service. Honest

    Gary Avatar
  • I had Jim out to my house in Fall when my furnace wasn't working correctly. Instead of gouging me for a new furnace or expensive parts (which he could have due to my lack of knowledge in this area), he found a sensor with a dead spider on it. Cleaned it off, and it runs great. Thanks again for the honesty, Jim!

    Adam Avatar
  • This is a great company always satisfied with service and professional staff . Would recommended them to all my friends and family . Thank you again for your timely service and the quick fix .

    Howard Avatar
  • Very pleased with my service

    Barb Avatar
  • Extremely professional and trustworthy. Owner is very mindful of best way to save you money. Truly cares about doing honorable work. Would recommend them to my own mom and grandma!!

    Karen Avatar
  • We had the pleasure of using Martens for our new home construction. They came highly recommended by alot of friends and clients. We couldn't be more happier then we are. We enjoyed visiting while our home was being built and the staff was always friendly and answered any questions. We were lucky to have been able to work with this company.

    Deanna Avatar
  • This second generation family owned company provides excellent service and value. They are big enough to provide all the service and expertise of a large mechanical contractor, yet small enough to provide the personal attention, ensuring their customers are completely satisfied. I definitely recommend contacting Martens Heating and Mechanical for all your HVAC needs!

    Ted Avatar

New Heating Systems Sales & Installation Service

Headquartered in Omro, Martens Heating and Mechanical is your go to company for furnace or boiler sales and installation in and around the Fox Valley, WI.  With nearly 40 years in the business, we are well versed in many different heating options. We offer affordable, energy efficient heating systems in many sizes and styles. Don’t go another night with that old, inefficient furnace that could leave you freezing at any moment when we could quickly have a new furnace install complete. Contact us today at (920) 685-0111 if you want a trusted, reliable heating company near you.

furnace installation

Forced Air Furnace Installs

At Martens, we offer an impressive selection of different forced air furnaces.  If you don’t already have the necessary ductwork to incorporate a forced air furnace, don’t worry, we do that also.

With different models, sizes, efficiency ratings, and prices; we can accommodate the needs of every client.  We can also customize a solution for the “not so standard” situations.

Boiler Installations

For situations where no ductwork is present in a home, we offer many boiler options to keep you warm.  Often times a boiler is slightly more efficient than a forced air furnace.  They use hot water or steam to distribute heat throughout the home.  Generally this hot water travels through baseboard heaters, but can also incorporate in-floor heat as shown below.

boiler install
in-floor heat with boiler

In-Floor Radiant Installs

In-floor heat is provided by hot water and is an excellent choice for your home.  The water lines are generally fastened to the floor from the level below.  In situations of new construction, the tubes are often placed within a thin layer of very lightweight concrete, and then the finished floor is placed over that.  The result is a much more even heat, since it isn’t based on one duct per room, which can create hot/cold spots.  This option feels amazing under your feet, especially on the coldest Wisconsin mornings.

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 heating 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.

Furnace Ductwork Installation

furnace duct installation

 At Martens Heating & Mechanical, we believe in providing a quality service to our valued customers. We can build completely customized furnace ductwork solutions for your HVAC needs. Our complete metal fabrication shop allows us to design and modify any new system, so that it fits your needs. No ductwork project is too big or small. As you can see in the image, we do ductwork installation too, even in large commercial buildings.

Contact us today if you need heating ducts installed at your home or business.

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Martens Heating & Mechanical