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10 Best HVAC Companies in Fond du Lac, WI

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Written By Bradford Cuthrell

Last Updated April 2024

If you're like most Americans, over half of your energy bill (55%, according to the Department of Energy) goes toward heating and cooling your home. This may not surprise you if you live in Fond du Lac and have to run your heat all winter. On average, residents spend $200 a month on their heating.

Read our list of the top HVAC companies in Fond du Lac to find the right one for you and your home. Our topic contractors can help you stay comfortable while reducing your bills.

Top 10 Best HVAC Companies in Fond du Lac

Air Tech Heating, Inc.

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251 Griffith St, Fond du Lac, WI 54935 (920) 924-6742 airtechhtg.com

Clear pricing policy

Reliable customer support

Free quote

Informative resources

Services Offered

Boiler installation
Furnace installation
Emergency services
Ductless
Ac repair
Ventilation
Filtration
Maintenance
Ac installation
Indoor air quality
Furnace repair

Fondy Heating & Air Conditioning

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N7374 Mosher Dr, Fond du Lac, WI 54937 (920) 922-4565 fondyheating.com

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Prompt service delivery

Free quote

Reliable customer support

Services Offered

Furnace repair
Emergency services
Ac installation
Ductless
Maintenance
Indoor air quality
Furnace installation
Ventilation
Boiler installation

Wesley Heating & Cooling

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160 S Brooke St, Fond du Lac, WI 54935 (920) 923-2500 wesleyheating.com

Clear pricing policy

Free quote

Reliable customer support

Prompt service delivery

Informative resources

Services Offered

Furnace installation
Ac installation
Indoor air quality
Maintenance
Ac repair
Furnace repair
Emergency services

K & T Heating & Cooling

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510 Forest St, Campbellsport, WI 53010 (920) 533-5566 ktheatcool.com

Clear pricing policy

Informative resources

Reliable customer support

Services Offered

Ac repair
Ac installation
Inspection
Maintenance

Groeschel Company, Inc.

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N, 10210 US-151, Malone, WI 53049 (920) 795-4331 groeschelco.com

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Klapperich Heating and Cooling, LLC

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W802 Co Rd Q, St Cloud, WI 53079 (920) 522-3355 khccomfort.com

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Free quote

Services Offered

Furnace installation
Maintenance
Ventilation
Emergency services

OSHKOSH HEATING & AIR, LLC

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920 S Main St, Oshkosh, WI 54902 (920) 216-1616 oshkoshheatingandair.com

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Reliable customer support

Informative resources

Services Offered

Furnace installation
Ventilation
Ac installation
Filtration
Inspection
Maintenance
Ductless
Boiler installation

Gartman Mechanical Services

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520 W South Park Ave, Oshkosh, WI 54902 (920) 231-5530 gartmanmechanical.com

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Services Offered

Emergency services
Filtration
Ventilation
Ac installation
Boiler installation
Furnace installation

All-Phase HVAC LLC

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1804 Shaler Dr, Waupun, WI 53963 (920) 763-2301 allphasecomforts.com

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Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Furnace installation
Ac repair
Boiler installation
Ac installation
Maintenance

Condon Total Comfort Inc.

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11 Blackburn St, Ripon, WI 54971 (920) 748-5050 condontotalcomfort.com

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Maintenance
Indoor air quality
Ventilation
Ac repair
Emergency services
Ductless
Furnace installation
Filtration
Ac installation
Boiler installation
Duct cleaning
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

If your HVAC system is having issues or getting old, it likely needs repairs or replacement from an HVAC company. Watch for these indicators your system needs service:

  • Unusually high energy bills
  • Temperature control issues or thermostat malfunctions
  • Cracking, corrosion, or rust
  • Strange noises when turning on
  • Frequent breakdowns and need for repairs
  • Poor air circulation or uneven heating/cooling
  • Refrigerant leaks
  • An HVAC system that's over 15 years old

If you notice any of the above, have a local HVAC technician inspect your system. They can identify problems and recommend whether repair or full HVAC replacement is the best course of action.

Cost of HVAC Installation and Maintenance in Fond du Lac

HVAC installation or maintenance costs change depending on your system. Common HVAC unit varieties include the following:

  • Split or mini-split: Homes without ductwork for central air frequently have split or mini-split HVAC systems. These systems consist of indoor units in each room to regulate temperature. These indoor units connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC unit operates similarly to a regular split system. It provides flexibility by providing the option to use either electricity or gas for energy.
  • Heat pump: Heat pumps work by transferring warm and cool air between your home and the outdoors. These systems don't create heat or air conditioning themselves, and are more effective in more moderate climates. They may not be as effective during Fond du Lac's cold winters.
  • Packaged heating and air: Packaged HVAC systems are a good choice for smaller homes. They have a single heating and cooling unit, normally in a basement or attic. This unit is often space-saving, cost-effective, and easy to maintain.

HVAC maintenance prices vary based on the specific services needed. HVAC systems can be complex and potentially require several different services. Costs for typical jobs are as follows:

HVAC Unit TypeCost
Split$1,952-$4,977
Hybrid Split$3,956-$7,288
Heat Pump$3,063-$31,213
Packaged Heating and Air$256-$427

Ways to Save Money on HVAC Costs

It’s important to complete repairs or full-system HVAC replacements as needed, though they can be expensive. The good news is that homeowners have methods to decrease the effect of wear and tear and reduce the frequency of breakdowns.

  • Change the position of your blinds seasonally. Leaving your blinds open during the winter allows passive solar heating to warm your home. Closing the blinds in warmer seasons helps prevent some heat from getting inside. Doing both helps decrease the strain on your HVAC.
  • Monitor for potential problems. Monitoring your system for problems — for example, by checking your thermostat and energy bills regularly — helps you get ahead of problems before they get too expensive.
  • Change filters regularly. Replacing your air filters or washing them every 30–90 days allows efficient air circulation through your HVAC system. You should also try to keep debris from accumulating on the external parts of your HVAC.
  • Keep your system clean. Regularly cleaning ductwork, condenser fan blades, indoor evaporator coil, and grills helps your HVAC system run efficiently and reduces the risk of mold. The National Air Duct Cleaners Association recommends cleaning your HVAC system when it starts to look dirty.
ServiceCost
Filter Replacement$64-$171
Condensor Cleaning$1,282-$3,845
Thermostat Repair$85-$214
Ductwork Cleaning$410-$1,025

How To Choose a Local HVAC Company

Knowing the indicators of a good HVAC company is important. Working with a contractor that's properly licensed and highly experienced will give you confidence that they can fix your system, providing you with effective heating and cooling for your home.

Compare Multiple Bids

Contact at least three HVAC providers for quotes. Describe your issues and schedule an in-person inspection if possible. Compare contractors' diagnoses, suggested repairs, estimated costs, timeframes, and warranties. Avoid companies that pressure you or demand upfront payment.

Check Credentials

Choose an HVAC company with highly trained technicians who have appropriate licensing and experience. HVAC contractors in all states have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, individuals must pass an exam (the specific exam depends on the kind of equipment they plan to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." All other licensing requirements are handled by the state.

There are no mandatory state-level licensing requirements for HVAC contractors in Wisconsin – contractors simply need to register with the Department of Safety and Professional Services. An individual has the option to become certified as an HVAC Qualifier, which requires four combined years of education and experience and may exempt them from some local regulations. Whether or not your technician is an HVAC Qualifier, make sure that they meet any local requirements. Checking reviews on the Better Business Bureau (BBB), Yelp, Google Reviews, and similar sites can assist your decision as well. Choose a provider with great reviews and reports of positive experiences from customers.

Understand Work Details

Make sure you know the details of your project before it begins. If HVAC repairs are required, have your provider list which parts need replacement and why. Get confirmation that your technician will clean and test the system after the repair to verify that everything works. When replacing your HVAC system, ask your contractor to provide details on the new energy efficiency, features, estimated installation time, brand, and model. Before work begins, make sure you understand how your provider will properly size the new unit for your home and what the cost will be.

Compare Warranties

Trustworthy HVAC companies stand behind their work with warranties. Look at warranties from different companies, bearing in mind that more comprehensive coverage is better. Look for the company that offers the most coverage for a fair price.

Get Quote in Writing

Always get quotes for HVAC service in writing before work begins. An itemized quote should cover both labor and materials. Make sure you review all terms before signing a contract.

Frequently Asked Questions About HVAC in Fond du Lac, WI

Generally, you should have your HVAC system inspected twice a year. After that inspection, your HVAC technician will tell you what, if any, services are needed. You should also call a technician if you notice any new issues, like leaks, unusual smells, or strange noises. If you have ductwork in your home, it should be serviced every few years.

The best times to have your HVAC system inspected are during the spring and fall. Technicians are less busy during these times, making it easier to get an appointment. This also helps get your system ready for the summer and winter, when it typically gets the most use.

You can save energy during the winter by reducing the amount of work your HVAC system needs to do to heat your home. Keep your thermostat as low as is comfortable and don't make drastic changes in the temperature — only increase or decrease it a few degrees at a time. If you're able to, try switching to a smart thermostat.

Generally, HVAC installation or replacement takes one to three days for the entire system. Installing or replacing a furnace or air conditioning unit can take as little as half a day or as much as two days. The exact amount of time will vary depending on factors like the size of your home, how easily accessible different sections are, and whether your technician finds any problems.

For a 2,000-square-foot home, you'll want a furnace that's between 50,000 and 80,000 BTUs (British thermal units). In Fond du Lac, you'll be better off going with a furnace on the higher end of or above this range.

For a 2,000-square-foot home, you'll also want to look for an air conditioning unit with between 2.5 and 5 tons of capacity. In Fond du Lac, a unit on the lower end of this range may be sufficient. Typically, if your home is larger than 1,000 square feet, central air will be more effective than window air conditioning units.

Your HVAC company may have financing options through a third-party lender, or you may be able to obtain your own loan. It's smart to discuss payment options with your HVAC company and a financial advisor to make sure that you find the best option for you.

There are several ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and clean or change your air filters regularly.
  • Schedule regular inspections to take care of issues as they arise.
  • Keep your attic well-ventilated and make sure all doors and windows are well-sealed.
  • Install a smart thermostat. If you don't want to or can't buy one, try to keep the temperature indoors as close to the outside temperature as you can.
  • When it comes time to replace any part of your system, explore Energy Star-certified or other environmentally friendly options.

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