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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

9 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Hively Home Comfort LLC
Hively Home Comfort LLC
4.8(
48
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair+2 more

Serving Dupo, IL and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"yes he took care of the problem"
3 neighbors recently requested a quote
Recommended by64%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

"Very pleased will definitely hire them again and recommend them to family and friends!"
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

"HIGHLY RECOMMEND! Did much research on companies 1st b/c I was aware of scams with duct cleaning. But this company is very legitimate professional - techs and receptionist, all the way around! Top quality service! On time and will answer any questions and explain it all in great detail? very polite and professional. And yes, they will take photos throughout if you want to see exactly the differences of before and after. I had bought a 1959 home which had never been cleaned. See my before/after photos. Before, I kept having to wipe off my counter tops a few times a day because they always felt gritty. After the duct cleaning, they stay clean now - A HUGE DIFFERENCE! The guys were awesome and went above and beyond by also helping me carry a heavy appliance from upstairs to my basement. Very nice guys! They cleaned up any mess before leaving, like they had never there. You will not regret using their service. Lower Price than others too! Thanks Danny & Cameron! Great Work!"
New Trucks
Duct Cleaning Trailers
New Sign
Response time9 hrs
Response rate95%
500 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

31 neighbors recently requested a quote
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Avatar for Giron and Sons Heating and Cooling LLC
Giron and Sons Heating and Cooling LLC
5.0(
3
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+5 more

Serving Dupo, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Fantastic service! They arrived right on time and did an amazing job with our annual furnace tune-up. Professional, thorough, and efficient. I highly recommend them to anyone needing HVAC maintenance!"
Furnace tune up
Furnace tune up
Furnace tune up
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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%
3 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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Showing 1-10 of 254
Heating and Air Conditioning questions, answered by experts

Mold in your air conditioner isn't a good thing, as it can be harmful to your health. If the mold travels through the ductwork or is blown out of the A/C, you and your family can inhale mold spores and develop respiratory illnesses and other problems. Preventing mold from growing in the air conditioner will help protect your health.

You will enjoy greater energy efficiency and save on your annual energy bills, with new, modern HVAC systems using 30% to 50% less energy than older models. Upgrading your HVAC system is also a great way to embrace new technology, such as smart thermostats, lighting, fan speed, and humidity from your phone or tablet.

The cost of R32 refrigerant is about the same as the cost of R410A refrigerant, the most widely available type of refrigerant today. However, R32 systems use about 20% less refrigerant than R410A systems, making the refrigerant less expensive overall.

Not if you have a standard unit. Because portable AC units actually work to dehumidify the room, you’ll likely need to drain the unit from time to time—but you won’t have to put water into it. There is, however, another type of air conditioner called a swamp cooler that requires water to operate. If you have a swamp cooler, you may need to fill a reservoir with water and potentially ice. But a swamp cooler is different from a standard portable AC unit.

There are many signs of a bad AC fan motor, including if the fan blades don’t spin when the AC kicks on or if they keep spinning when the AC is off. The AC fan cools down the condenser coil, so a faulty motor can also cause the system to overheat. Unusual noises in the exterior AC unit, including grinding or rattling sounds, may also be a sign that the AC fan motor is worn out.

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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