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TRUSTED BY DUPO, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon496
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Dupo, 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 Dupo, 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 June 21, 2026

Find Heating and air conditioning pros in Dupo

Avatar for Hoffmann Brothers
Hoffmann Brothers
4.5(
43
)
Central A/C - Service or Repair

Serving Dupo, IL and surrounding areas

Approved

In business since 2000

Emergency services offered

Credit card accepted

"Had new hvac, furnace, and hwh installed. Furnace had a couple of air leaks between a coil and furnace which I fixed myself. Hvac was spot on. Hwh failed first inspection, but was corrected in same day. For the premium price paid, these issues should not happen. Quality 4.5 because of these issues, same goes for value. Customer service is very good. They are very professional, work looks very good, clean worksite afterwards. I would recommend, but don't think about negotiating price with them. Their labor is very high."
Installation
Installation
Heat Pump
Heat Pump
Furnace

+14

5 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Allstar Carpet & Upholstery Care
Allstar Carpet & Upholstery Care
4.8(
44
)
Air Ducts & Vents - Clean

Serving Dupo, IL and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"They are real nice people to work with. I am impress with the stains they got out of my carpet. I will recommend them to my friends, Great customer service."
Response time8 hrs
Response rate89%
Recommended by97%of homeowners
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Avatar for Healthy Home Pest Control & Services
Healthy Home Pest Control & Services
4.4(
387
)
Air Ducts & Vents - Clean

Serving Dupo, IL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Tim and Jeff were very fastidious in setting up, cleaning, and making sure the house was in good order when they left . We also had an Aeroseal treatment which followed with James and Connor. It did take some time to set up after the vents were cleaned and blown out, but the application of this polymer to close gaps in lthe galvinized steel ducts was remarkable."
New Trucks
Duct Cleaning Trailers
New Sign
Response time9 hrs
Response rate95%
525 neighbors recently requested a quote
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Avatar for The Furnace Guys Heating & Cooling
The Furnace Guys Heating & Cooling
5.0(
7
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service+1 more

Serving Dupo, IL and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"My furnace was not working & the repairman came out on a Sunday morning & made repairs to keep my home warm until he could get necessary parts on Monday."
Installation
Installation
Installation
Installation
Installation

+2

Response time30 mins
Response rate100%
Recommended by83%of homeowners
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Avatar for Morrison Plumbing, Heating, Air & Electrical Services
Morrison Plumbing, Heating, Air & Electrical Services
5.0(
6
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+5 more

Serving Dupo, IL and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Emergency services offered

"I received 5star treatment from Ray Hiller, he identified the problem and solved it, I was up and running in no time.."
HVAC Maintenance
Air Conditioner
Heating Repair
AC Service
HVAC Repair

+6

60 neighbors recently requested a quote
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Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
3.4(
354
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+12 more

Serving Dupo, IL and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"2 friendly guys that did awesome work. Transfer switch works great and it's nice to see them clean up when done. I would definitely use the tiger again for electrical work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

205 neighbors recently requested a quote
Recommended by74%of homeowners
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Avatar for Dryer Vent Rescue
Dryer Vent Rescue
5.0(
13
)
Air Ducts & Vents - Clean

Serving Dupo, IL and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"They did a fabulous job in cleaning all the vents in the house. The entire crew was very professional and treated our home with care. Even our dog loved them! We highly recommend using them!"
Imperial MO Air Duct
Imperial MO Air Duct
Imperial MO Air Duct
Imperial MO Air Duct
Imperial MO Air Duct

+21

Response time8 hrs
Response rate100%
2 neighbors recently requested a quote
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Avatar for House Doctor's
House Doctor's
5.0(
3
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessCentral A/C - Install+43 more

Serving Dupo, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Furance was not working, call House Doctor. They were out the next day and got it back up and running. Professional and efficient. Plus, very affordable."
Hvac Install
Hvac Install
Hvac Install
Hvac Install
Hvac Install

+1

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Avatar for The Steven Brand
The Steven Brand
4.8(
74
)
Thermostat - Install or Replace

Serving Dupo, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Emergency services offered

Small jobs welcome

"It went well and he did an excellent job installing my gazebo and pool. This equipment had been sitting in my garage for a year so I decided to give Angie's List another try the first time I had a contractor last year didn't show. Steven was polite and professional and I will be using him again for all of my upcoming jobs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time2 days
Response rate98%
1 neighbors recently requested a quote
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Avatar for VMK Remodeling
VMK Remodeling
4.2(
19
)
Thermostat - Install or Replace

Serving Dupo, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Vinc and his crew were exceptional in the work performed and their interaction with us. There were at least seven guys here and they were all friendly and polite. The site manager Kane is exceptional. The best that I can say about this company is I plan for them to do other work for me on near future."
Response time2 days
Response rate90%
15 neighbors recently requested a quote
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Showing 1-10 of 248
Heating and Air Conditioning questions, answered by experts

Most units are designed only to cool the house down to 20 degrees less than the temperature outside. This means that if it’s 99 degrees Fahrenheit out and you’re trying to cool your home down to 65 degrees, you’ll notice your AC is struggling. 

Lower the blinds on all your windows, turn on your ceiling fans, and keep the thermostat at a consistent temperature to help your AC do its job. Investing in an HVAC maintenance plan also helps because pros will come out to inspect and tune up your unit regularly, keeping it in optimal working condition.

There are several tell-tale signs that your AC coils need cleaning, including:

  • You’re getting higher electricity bills.

  • Your home doesn’t feel as cool as it usually does.

  • Your AC unit is running longer than usual to cool your home.

  • Your home is more humid than usual.

  • The coil is covered in frost while running.

Choosing between a ductless mini-split and central AC depends on your specific needs. Ductless mini-splits are ideal for targeted cooling, providing zoned comfort and energy efficiency. They are perfect for smaller spaces or homes lacking ductwork. In contrast, central AC offers consistent cooling throughout the entire house but requires ductwork and may be less energy-efficient for smaller spaces. 

Consider factors like budget, home size, and cooling preferences to make the right choice. Combining both systems, with a ductless mini-split in specific areas, can also be a viable solution for tailored comfort and overall efficiency.

To reset your air conditioner, start by turning it off at the thermostat. Then, shut off power to the AC system at the circuit breaker. Some units have a dedicated "reset" button; if yours does, press and hold it for three to five seconds. If your air conditioner doesn't have a reset button, or if you are resetting it after a power outage, leave the circuit breaker off for at least 30 minutes to allow the system to reset itself. Afterward, turn the power back on at the breaker, turn on the AC from the thermostat, and set it to "cool" to test the system.

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

The Dupo, 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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