About
Welcome to Chicago Diamond One, where comfort meets expertise. Established in 1986, we have grown to become one of Chicago's most trusted HVAC service providers. Our team handles air conditioning, furnace repair, heat pump installation, ductless systems, and more across the Illinois area.
Photos
Services
- AC RepairUSD 272–566 · ESTIMATE
- Geothermal SystemsUSD 345–450 · ESTIMATE
- Preventive MaintenanceUSD 106–367 · ESTIMATE
- RefrigerationUSD 306–512 · ESTIMATE
Brands We Work With
Credentials
- License: LIC-93812-US Verified(Illinois IDFPR)
- Insurance: Not verified
- Background check: Passed
- Employees: 1-5
- Service radius: 22 km
Reviews (8)
- ★★★★★Impressed
Chicago Diamond One installed a new furnace for us last month. Great communication throughout the process and the crew was very respectful of our home.
- ★★★★★Top notch
Chicago Diamond One diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.
- ★★★★★Highly recommend
Called Chicago Diamond One for an emergency repair and they were here within an hour. Professional, courteous, and got everything working again.
- ★★★★★Five stars
Very happy with the service from Chicago Diamond One. They replaced our entire HVAC system and the difference is night and day. Highly recommend.
- ★★★☆☆Five stars
Chicago Diamond One diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.
- ★★★☆☆Great service!
Chicago Diamond One diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.
- ★★★☆☆Quality workmanship
Called Chicago Diamond One for an emergency repair and they were here within an hour. Professional, courteous, and got everything working again.
- ★★★★★Would use again
Chicago Diamond One installed a new furnace for us last month. Great communication throughout the process and the crew was very respectful of our home.