Furnace Replacement

  • Certified Bryant Dealer
  • 24-Hour Heater Replacement
  • Low Cost Options
  • Home & Commercial System Services

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  • 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
    Deanna
    4/15/2017
  • Very pleased with my service

    Barb Avatar
    Barb
    11/15/2018
  • 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
    Howard
    4/15/2016
  • 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
    Adam
    4/15/2018
  • Great service. Honest

    Gary Avatar
    Gary
    3/25/2019
  • 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
    Ted
    4/15/2017
  • 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
    Karen
    4/15/2018

24/7 heater replacement

Our experienced technicians are always on call and ready to help you out in a pinch. We understand that in the cold Wisconsin winters a broken furnace can feel like a dire situation. We’ll help you choose the right replacement furnace assuring your home stays toasty warm through the colder months.

Furnace & Boiler Replacement in Oshkosh, WI and Surrounding Areas

We have spent over 40 years servicing homes and businesses in our community. Martens knows that furnace problems can happen at any time. That's why we are available 24/7 to our valued customers. Martens provides reliable services for all your heating needs.

furnace installation

Why you should choose Martens Heating

Decades of experience provides us with the knowledge to expertly serve our customers. No project is too big, or too small, for our hardworking team. Our knowledge and attention to details make us the best around. We would love the opportunity to show you what the best looks like.

Types of heating systems we work on

  • Forced air furnaces
  • Boilers and hydronic heating systems
  • In-floor radiant heat
boiler install

Common Heater Replacement Services:

  • Furnace replacement cost estimates
  • Heater replacement
  • Gas furnace replacement
  • Boiler replacement
  • Ductwork Replacement

Searching for a replacement furnace? Then consider your search over. Call us today and find out why so many local residents and businesses trust us as their furnace replacement company.

Why you should hire a professional boiler replacement company

There are a lot of good reasons to hire a licensed professional to work on your HVAC. All kinds of problems can arise while working on HVAC. One little mistake can have devastating consequences. Hiring a licensed professional will provide:

Accountability and Liability Insurance

A licensed professional is required by law to have Worker’s Compensation Insurance. This will cover any injuries that may happen to those working on the job. If you hire an unlicensed contractor they may not have insurance. Accidents happen, but you shouldn’t have to pay for someone else's negligence.

Assurance of Code Compliance

A licensed professional is going to know what your city/county code allows. An unlicensed contractor may not. You will end up spending more money if the work you have done violates any city/county codes. 

What you can expect from Martens

  • Professionals you can count on
  • Friendly staff
  • Clear communication about the task at hand
  • Prices to fit your budget
  • Top of the line reliable products
  • Free estimates
  • Knowledgeable professionals
  • And so much more…

What you should look for in an HVAC professional

We understand the need to look around and know you’re making the best choice for your HVAC needs. Having the right team will make all the difference when it comes to your overall experience. It would be our honor to be your number one choice, but it’s important you weigh all your options first. When choosing a professional you should be mindful of:

Licensing, Certifications, and Training

Without the right paperwork, you could end up eating more cost than you want. A lack of training can lead to more costly mistakes. Our staff consists of well-trained fully licensed and insured HVAC contractors.

Positive Reviews

Look up customer testimonials and make sure your HVAC professional is reputable. You should also be able to find ratings with the Better Business Bureau online. Martens has an A+ rating with the BBB and glowing customer reviews.

Local Business

Choosing a local HVAC company is a great way to support your community. A local company will also be more invested in the community and its own reputation. If you need work done fast, hiring locally means faster response time. At Martens we believe in honesty and transparency, helping homeowners understand all their options and working with them to find the most viable and economical options that provide great value and keep them and their family comfortable and safe.

Furnace & Boiler FAQ's

How much does it cost to install a heating system?

If I need a replacement how long will it take to get a new unit installed?

Do you offer financing?