John Miller ThermalTech

About

At John Miller ThermalTech, we believe every home and business in Los Angeles deserves reliable comfort year-round. Our skilled team specializes in energy-efficient heating and cooling solutions, duct work, indoor air quality, and preventive maintenance programs designed to extend the life of your HVAC system.

Services

• Heat Pump Services
  USD 332–554 · ESTIMATE
• Commercial HVAC
  USD 276–688 · ESTIMATE
• Geothermal Systems
  USD 219–295 · ESTIMATE

Brands We Work With

Credentials

• License: LIC-48908-US Verified(California CSLB)
• Insurance: Verified
• Background check: Passed
• Employees: 51-100
• Service radius: 41 km

Reviews (7)

• ★★★★★
  Very professional

  Outstanding customer service from start to finish. John Miller ThermalTech went above and beyond to make sure we were comfortable.

• ★★★★★
  Friendly and efficient

  We have used John Miller ThermalTech for years and they never disappoint. Honest pricing, quality work, and they always clean up after themselves.

• ★★★★★
  Highly recommend

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

• ★★★☆☆
  Quality workmanship

  John Miller ThermalTech diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.

• ★★★★★
  Very professional

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

• ★★★☆☆
  Highly recommend

  Had John Miller ThermalTech come out for our annual maintenance. The tech was thorough and explained everything. Good value for the price.

• ★★★★★
  Good experience

  John Miller ThermalTech diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.