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Top HVAC & Air Conditioning Contractors in O Fallon, IL

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Precious D. 04/22/2020

"Frederick was very professional. We felt comfortable with him in our home, not knowing what the problem was with our a/c. I have 2 babies and the heat was really a problem. During the pandemic, he kept his distance, wore booties, and was able to fix the wiring problem before I had even realized he had started the job. He even called later to make sure the air was working properly. I would definitely recommend Advanced Home Improvement and Repair. We have had so many companies come in and have no regard for our home. It is nice to finally find people you can trust that do great work."

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Services Offered

Central A/C Repair

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  • Elite Service
  • Free Estimates
Get a Quote (618) 434-0202 Call Now
Erin H. 06/25/2020

"Fast, efficient and took time as he went along explaining what he was looking at, why and where the problem was. Fixed!"

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Services Offered

Central A/C Repair, Central A/C Repair - For Business

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  • Elite Service
  • Best of Winner
  • Warranties
Get a Quote (618) 420-8800 Call Now
Wendy G. 11/07/2019

"Bel-O sent someone out within a few hours from the time I called regarding our furnace. It needed replaced and they gave us several options to choose from. We were happy with everyone we encountered, from the person who took our call, the service tech, sales person to installers. All were professional and courteous of our property. We highly recommend them."

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Services Offered

Central A/C Install, Central A/C Install, Central A/C Repair, Central Air Cleaner Repair, Central Air Cleaner Repair, Central A/C Repair, Central Air Cleaner Install, Central Humidifier Repair, Central Air Cleaner Install

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  • Free Estimates
Get a Quote (618) 632-5700 Call Now
Ronny H. 07/26/2018

"I would recommend him to everybody. "

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Services Offered

Central A/C Repair, Central Humidifier Repair

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Get a Quote (618) 979-4615 Call Now
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HomeAdvisor Community Rating

Overall Rating:  
O Fallon HVAC & Air Conditioning Contractors are rated 4.83 out of 5 based on 293 reviews of 7 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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Recent Job Requests for Air Conditioning Contractors in O Fallon, IL


New Lead
Project: Install a Central Air Conditioning System
Location: O Fallon, IL
Date: 07/10/2020
What is the nature of this project?: Install or replace central air conditioning system
Request Stage: Ready to Hire
Desired Completion Date: Within 1 week
Comment: replace central air conditioning system

New Lead
Project: Repair or Service a Central Air Conditioning System
Location: O'Fallon, IL
Date: 07/09/2020
Is this an emergency?: No
Request Stage: Planning & Budgeting
Desired Completion Date: Timing is flexible
Comment: My ac isn't working the best. At night it is perfect but in the day. It's horrible.

New Lead
Project: Repair or Service a Central Air Conditioning System
Location: O Fallon, IL
Date: 07/08/2020
Is this an emergency?: Yes
Desired Completion Date: Immediately
Comment: HVAC repair

New Lead
Project: Repair or Service a Central Air Conditioning System
Location: O Fallon, IL
Date: 07/07/2020
Is this an emergency?: Yes
Problem description: Unit not running
Equipment Age: 11 - 15 years
Desired Completion Date: Immediately
After Business Hours: No
Covered by Insurance: No
Property Owner: Yes
Comment: A/C unit not turning on

Project: Repair or Service a Central Air Conditioning System
Location: O Fallon, IL
Date: 06/2020
Is this an emergency?: Yes
Problem description: No air conditioning in all locations
Equipment Age: 11 - 15 years
Desired Completion Date: Immediately
After Business Hours: Yes
Covered by Insurance: No
Property Owner: Yes
Comment: My ac isnt blowing cool air. FYI furnace is 29 years old, The AC condenser is at least 18 years old.

Project: Repair or Service a Central Air Conditioning System
Location: O Fallon, IL
Date: 06/2020
Is this an emergency?: No
Request Stage: Ready to Hire
Desired Completion Date: Timing is flexible
Comment: Down stairs thermostat is stuck

Project: Repair or Service a Central Air Conditioning System - For Business
Location: OFallon, IL
Date: 06/2020
What kind of location is this?: Business
Is this an emergency?: No
Problem description: No air conditioning, Annual maintenance
Recharged with Refrigerant: Don't Know
Timing: Within 1 Week
On-going: No
Type of Business: Service
For how many locations/units is this request?: 1

Project: Repair or Service a Central Air Conditioning System
Location: O Fallon, IL
Date: 06/2020
Desired Completion Date: Immediately
After Business Hours: Yes
Covered by Insurance: No
Property Owner: Yes
Comment: I would like to get an estimate for Central Air assume the air turns on downstairs but looking at the unit outside it does not turn on at all.

Project: Repair or Service a Central Air Conditioning System
Location: O Fallon, IL
Date: 06/2020
Is this an emergency?: No
Problem description: Annual maintenance
Request Stage: Ready to Hire
Desired Completion Date: Timing is flexible

Project: Repair or Service a Central Air Conditioning System
Location: O Fallon, IL
Date: 06/2020
What is the nature of this project?: Repair or service central air conditioning system
Request Stage: Looking for Parts Only
Desired Completion Date: Within 1 week
Comment: need compressoer