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TRUSTED BY FLANAGAN, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon258
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Flanagan, IL

*The Angi rating for Heating And Air Conditioning Service companies in Flanagan, IL 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 Flanagan, IL 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 29, 2025

Find Heating and air conditioning pros in Flanagan

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.

M & M Mechanical

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M & M Mechanical

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M & M Mechanical Lincoln, IL, 62656 (217) 870-0211 At M & M Mechanical your satisfaction is our goal, we provide quality air conditioning and heating services, serving people in Lincoln IL and surrounding cities. Please call us today! Heating Systems, Steam Boilers, Boilers, Furnaces, Cooling Systems, Humidifiers, Dehumidifiers, Electrical Systems, Water Wells Bell IL; Evans IL; Lawndale IL; Burton View IL; Chestervale IL HVAC Repair, HVAC System, HVAC Contractors, AC Maintenance, AC Installation http://mandmmechanicalil.com/

M & M Mechanical Lincoln, IL, 62656 (217) 870-0211 At M & M Mechanical your satisfaction is our goal, we provide quality air conditioning and heating services, serving people in Lincoln IL and surrounding cities. Please call us today! Heating Systems, Steam Boilers, Boilers, Furnaces, Cooling Systems, Humidifiers, Dehumidifiers, Electrical Systems, Water Wells Bell IL; Evans IL; Lawndale IL; Burton View IL; Chestervale IL HVAC Repair, HVAC System, HVAC Contractors, AC Maintenance, AC Installation http://mandmmechanicalil.com/

Avatar for Steidinger Brothers Inc.

Steidinger Brothers Inc.

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Steidinger Brothers Inc.

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13 years of experience

Steidinger Brothers Inc., based in Fairbury, IL, is your reliable partner for all mechanical needs. We offer comprehensive services for your home or business, ranging from plumbing, heating, and air conditioning to geothermal systems and electrical work. Our expertise extends to appliance sales, service, and excavation projects. Whether it's minor repairs or large-scale construction, trust Steidinger Brothers Inc. to deliver quality products and dependable service every time.

Steidinger Brothers Inc., based in Fairbury, IL, is your reliable partner for all mechanical needs. We offer comprehensive services for your home or business, ranging from plumbing, heating, and air conditioning to geothermal systems and electrical work. Our expertise extends to appliance sales, service, and excavation projects. Whether it's minor repairs or large-scale construction, trust Steidinger Brothers Inc. to deliver quality products and dependable service every time.

Mike Williams Plumbing, Heating & Air Conditioning

3.00(
1
)

Mike Williams Plumbing, Heating & Air Conditioning

3.00(
1
)
Customers say: Quick response
"The semi-annual checkups were OK as was the emergency repair work they did. But after we had a new HVAC system installed and no longer needed our contracts with them they failed to honor our written request to return the requested balance remaining on our contracts."

Keith H on February 2018

"The semi-annual checkups were OK as was the emergency repair work they did. But after we had a new HVAC system installed and no longer needed our contracts with them they failed to honor our written request to return the requested balance remaining on our contracts."

Keith H on February 2018

Avatar for A-1 Heating and Air

A-1 Heating and Air

4.77(
30
)

A-1 Heating and Air

4.77(
30
)
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

We are a small family oriented company. Our goal is QUALITY at a fair price. Customer satisfaction is of the utmost importance.

"Rich provided a competitive quote for a high quality, high efficiency furnace and backed it up with high quality, high efficiency installation and service. Extremely fair, extremely professional."

James C on January 2018

We are a small family oriented company. Our goal is QUALITY at a fair price. Customer satisfaction is of the utmost importance.

"Rich provided a competitive quote for a high quality, high efficiency furnace and backed it up with high quality, high efficiency installation and service. Extremely fair, extremely professional."

James C on January 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.

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Heating and Air Conditioning questions, answered by experts

The $5,000 rule for HVAC systems helps homeowners decide whether to repair or replace an AC or furnace. Take the quote for the HVAC repair cost and multiply that by the age of the HVAC system. If the total is higher than $5,000, it’s more cost-effective to replace the system. If the total is lower than $5,000, consider repairing the system.

Window ACs use 500 to 1,400 watts per hour of electricity, while mini-splits use 500 to 700 watts per hour. However, if you need to cool multiple zones in your house, your mini-split can use as much as 2,000 watts per hour. How often you run your system will impact how much electricity you use (and how much you pay per month).

There are a few factors to consider if you’re deciding between repairing and replacing your air conditioner. It’s probably worth fixing the AC unit if it’s less than 10 years old, you’re dealing with a one-off issue, and your warranty or maintenance plan will cover the repairs. On the other hand, if your air conditioner is dated, inefficient, out of warranty, and experiencing multiple problems, consider replacing it.

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. 

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

Some states require special licenses for HVAC professionals, but most don’t. However, even if there is no state requirement for HVAC licensing, local requirements might exist. It’s always a good idea to check if HVAC technicians need to be licensed in your area and then Angi’s contractor license lookup tool to confirm that the contractor you’re hiring holds the necessary licenses. Additionally, you should always ensure the company you’re hiring is fully insured to avoid potential lawsuits if a technician gets injured on your property.

The Flanagan, IL 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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