Quality Diamond HVAC Services

About

Locally owned and operated, Quality Diamond HVAC Services is your trusted source for professional HVAC installation, repair, and maintenance in St. Louis and the greater Missouri region. With over 44 years of experience, our certified technicians handle everything from emergency AC repairs to complete system replacements.

Services

• AC Installation
  USD 132–614 · ESTIMATE
• AC Repair
  USD 234–434 · ESTIMATE
• Commercial HVAC
  USD 237–489 · ESTIMATE
• Energy Audits
  USD 85–376 · ESTIMATE
• Heating Installation
  USD 82–536 · ESTIMATE
• Radiant Heating
  USD 260–559 · ESTIMATE

Brands We Work With

Credentials

• License: LIC-91850-US Verified(Missouri DED)
• Insurance: Verified
• Background check: —
• BBB: B-Accredited(6 complaints)BBB Profile
• Employees: 51-100
• Service radius: 21 km

Reviews (6)

• ★★★★★
  Reliable and fair

  Quality Diamond HVAC Services diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.

• ★★★★★
  Five stars

  Called Quality Diamond HVAC Services for an emergency repair and they were here within an hour. Professional, courteous, and got everything working again.

• ★★★★★
  Impressed

  Very happy with the service from Quality Diamond HVAC Services. They replaced our entire HVAC system and the difference is night and day. Highly recommend.

• ★★★★★
  Great service!

  Quality Diamond HVAC Services did an amazing job. The technician arrived on time, was very knowledgeable, and fixed the issue quickly. Fair pricing too.

• ★★★☆☆
  Friendly and efficient

  Quality Diamond HVAC Services diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.

• ★★★★★
  Five stars

  After getting quotes from several companies, we went with Quality Diamond HVAC Services and glad we did. Best price and best service.