National HVAC Services

About

Locally owned and operated, National HVAC Services is your trusted source for professional HVAC installation, repair, and maintenance in St. Louis and the greater Missouri region. With over 38 years of experience, our certified technicians handle everything from emergency AC repairs to complete system replacements.

Services

• Refrigeration
  USD 229–438 · ESTIMATE
• Preventive Maintenance
  USD 146–205 · ESTIMATE
• Emergency Services
  USD 113–430 · ESTIMATE
• Energy Audits
  USD 178–290 · ESTIMATE
• Geothermal Systems
  USD 173–327 · ESTIMATE

Brands We Work With

Credentials

• License: LIC-54651-US (Missouri DED)
• Insurance: Verified
• Background check: Passed
• Employees: 11-25
• Service radius: 34 km

Reviews (7)

• ★★★★★
  Very professional

  National HVAC Services installed a new furnace for us last month. Great communication throughout the process and the crew was very respectful of our home.

• ★★★☆☆
  Outstanding service

  Outstanding customer service from start to finish. National HVAC Services went above and beyond to make sure we were comfortable.

• ★★★★★
  Highly recommend

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

• ★★★★★
  Impressed

  Outstanding customer service from start to finish. National HVAC Services went above and beyond to make sure we were comfortable.

• ★★★★★
  Would use again

  Had National HVAC Services come out for our annual maintenance. The tech was thorough and explained everything. Good value for the price.

• ★★★★☆
  Impressed

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

• ★★★★★
  Highly recommend

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