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TRUSTED BY DENMARK, WI HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon22
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Denmark, WI

*The Angi rating for Heating And Air Conditioning Service companies in Denmark, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Denmark, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on November 12, 2025

Find Heating and air conditioning pros in Denmark

Percolation Consulting, LLC

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Percolation Consulting, LLC

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Integrated solar energy solutions: photovoltaic, solar-thermal, battery storage and heat pumps. We are not tied to any specific PV manufacturer and will source the best solution for your location and situation. Solar energy is no longer idealists' domain - it makes solid financial sense. Whether your goal is to minimize the time until your solar installation is paid off, or you want to ride out the Zombie apocalypse in comfortable energy self-sufficiency, we have the perfect solution for your location and building use. Contrary to popular perception, year-round self-sufficiency can be reasonably achieved in the Midwest. We have close relationships to vendors of weekly and seasonal energy storage systems which will keep lights and heat on year-round.

Integrated solar energy solutions: photovoltaic, solar-thermal, battery storage and heat pumps. We are not tied to any specific PV manufacturer and will source the best solution for your location and situation. Solar energy is no longer idealists' domain - it makes solid financial sense. Whether your goal is to minimize the time until your solar installation is paid off, or you want to ride out the Zombie apocalypse in comfortable energy self-sufficiency, we have the perfect solution for your location and building use. Contrary to popular perception, year-round self-sufficiency can be reasonably achieved in the Midwest. We have close relationships to vendors of weekly and seasonal energy storage systems which will keep lights and heat on year-round.

Action Heating and Cooling Services, LLC

5.00(
1
)

Action Heating and Cooling Services, LLC

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Stratford Plumbing and Heating

5.00(
2
)

Stratford Plumbing and Heating

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Stratford Plumbing and Heating Company provides top quality service and products to the Central Wisconsin area. We are a family based small business providing high quality services our customers. Our focus is to deliver thorough, detailed, professional and quality plumbing, heating or air conditioning work, in a timely matter, every day. Customers are the most important part of our business, therefore, we treat our customers with utmost respect and gratitude. We take pride in our work, and will provide to you the most professional, honest, and proper service. Our goal is to be your first choice when problems arise. When choosing a Plumber, Stratford Plumbing and Heating is the best choice. Problems can occur suddenly and without any planning. We know there are many plumbing companies around. We will diagnose problems you have, and before we do any work we can discuss what action needs to be taken and can explain what is necessary to make the repairs.

"Stratford plumbing was here in less than an hour quickly identified the problem replaced the submersible pump cleaned up all the mess and were absolutely wonderful to deal with. I highly recommend their service"

Jerry G on August 2018

Stratford Plumbing and Heating Company provides top quality service and products to the Central Wisconsin area. We are a family based small business providing high quality services our customers. Our focus is to deliver thorough, detailed, professional and quality plumbing, heating or air conditioning work, in a timely matter, every day. Customers are the most important part of our business, therefore, we treat our customers with utmost respect and gratitude. We take pride in our work, and will provide to you the most professional, honest, and proper service. Our goal is to be your first choice when problems arise. When choosing a Plumber, Stratford Plumbing and Heating is the best choice. Problems can occur suddenly and without any planning. We know there are many plumbing companies around. We will diagnose problems you have, and before we do any work we can discuss what action needs to be taken and can explain what is necessary to make the repairs.

"Stratford plumbing was here in less than an hour quickly identified the problem replaced the submersible pump cleaned up all the mess and were absolutely wonderful to deal with. I highly recommend their service"

Jerry G on August 2018

Avatar for Second Nature (Formerly FilterEasy)

Second Nature (Formerly FilterEasy)

5.00(
1
)

Second Nature (Formerly FilterEasy)

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Second Nature, formerly FilterEasy, empowers its members to achieve long-lasting, sustainable home wellness with convenient subscription plans, including high-quality home air filters and refrigerator water filters. We exist to simplify home wellness, to make it so easy and convenient that it becomes second nature. Learn about our products and subscribe at www.SecondNature.com/home.

Second Nature, formerly FilterEasy, empowers its members to achieve long-lasting, sustainable home wellness with convenient subscription plans, including high-quality home air filters and refrigerator water filters. We exist to simplify home wellness, to make it so easy and convenient that it becomes second nature. Learn about our products and subscribe at www.SecondNature.com/home.

Wulf Brothers Inc

5.00(
4
)

Wulf Brothers Inc

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Diversifying over the past 120 years, from a blacksmith shop to a full-service supplier of home comfort products Wulf Brothers has grown in response to expanding customer satisfaction. Wulf Brothers began as a blacksmith shop in the 1870 s and over the years went through many changes and transitions. In 1982 Wulf Brothers Inc. expanded into heating and air conditioning systems for homes and businesses. As the main part of our business today we have two licensed HVAC Design Engineers on staff and have over 65 employees serving our customers. Our staff and crews are continually trained in the latest products and features for your home or business. Customers have trusted Wulf Brothers to professionally design, install and service their comfort system for many years. As the HVAC Division grew, Wulf Brothers diversified into helping customers find solutions when experiencing electrical or fuel outages (Low Temperature Alert Systems). This was the beginning of our security division Home Systems Integration. In 1998 Wulf Brothers relocated to the current Sturgeon Bay location along the highway and expanded product offering to include Hot Spring Spas and more of a variety of fireplaces and stoves. Stop by or call Wulf Brothers today and experience exceptional customer service Wulf Brothers . . . At Your Door . . . When You Need Us

Diversifying over the past 120 years, from a blacksmith shop to a full-service supplier of home comfort products Wulf Brothers has grown in response to expanding customer satisfaction. Wulf Brothers began as a blacksmith shop in the 1870 s and over the years went through many changes and transitions. In 1982 Wulf Brothers Inc. expanded into heating and air conditioning systems for homes and businesses. As the main part of our business today we have two licensed HVAC Design Engineers on staff and have over 65 employees serving our customers. Our staff and crews are continually trained in the latest products and features for your home or business. Customers have trusted Wulf Brothers to professionally design, install and service their comfort system for many years. As the HVAC Division grew, Wulf Brothers diversified into helping customers find solutions when experiencing electrical or fuel outages (Low Temperature Alert Systems). This was the beginning of our security division Home Systems Integration. In 1998 Wulf Brothers relocated to the current Sturgeon Bay location along the highway and expanded product offering to include Hot Spring Spas and more of a variety of fireplaces and stoves. Stop by or call Wulf Brothers today and experience exceptional customer service Wulf Brothers . . . At Your Door . . . When You Need Us

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Heating and Air Conditioning questions, answered by experts

If your AC suddenly stops working, the first thing to check is your thermostat settings. Ensure the thermostat is set to the appropriate temperature and mode (cooling). Sometimes, a simple adjustment or replacing the batteries in the thermostat can resolve the issue. If that’s not the issue, look to see if the circuit breaker tripped. These basic checks can often identify simple fixes before you need to call for professional assistance.

One of the fastest ways to unfreeze an AC unit is to turn off the unit and, if it’s warm outside, use the fan-only mode to help blow warmer air through the unit to speed up the defrosting process. While it may be tempting to use a hair dryer to defrost the air conditioner, that high heat can damage the coils.

After defrosting, if you can safely solve the issue with a fix like changing the filter, go ahead and do so. Otherwise, call in a pro before turning your AC back on.

For most systems, an annual HVAC system service is more than enough. Some homeowners prefer a twice-a-year visit to ensure the system is ready for the upcoming summer and winter seasons. If you need to call an HVAC pro more often than this, it may be time to check if your system is getting old enough for a replacement.

Freon circulates through your AC unit in a closed loop, so ideally, all of it should remain inside your system and never need to be replaced. However, if your AC starts leaking Freon (which is common), you’ll need to top it up. Known as an AC recharge, the cost of adding refrigerant to your air conditioner depends on the size and type of the AC unit, as well as the type of refrigerant.

No, a licensed local AC repair technician must replace AC coils due to the need to handle hazardous refrigerants. Attempting DIY poses risks to your personal safety, as most refrigerants are flammable and toxic. You also risk voiding your warranty with the HVAC company and causing damage to the unit.

The Denmark, WI homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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