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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!Ted4/15/2017
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.Deanna4/15/2017
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!!Karen4/15/2018
Great service. HonestGary3/25/2019
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!Adam4/15/2018
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 .Howard4/15/2016
Very pleased with my serviceBarb11/15/2018
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.
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
Common Heater Replacement Services:
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
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.
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.
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?
Heating & cooling systems are unique to every home; there are also many options to consider. Please contact us to set up an appointment for one of our expert consultants to meet with you and provide a free estimate.
If I need a replacement how long will it take to get a new unit installed?
We do everything we can to accommodate the needs of our customers. If it is an emergency situation we will take it serious and make any scheduling adjustments in which we are able to in order to expedite the replacement. We understand the importance and urgency of getting you heat as soon as possible during the cold Wisconsin winter. We will supply you with space heaters upon request in order to keep you as comfortable as possible until the replacement can be finished.
Do you offer financing?
We do offer financing and you can find a link under the ‘financing’ tab in order to apply for pre-approval. There is no commitment when applying for financing; by applying for pre-approval you will know ahead of time the funds you have to work with in order to assist you in making a decision.