About
Locally owned and operated, National ThermalTech is your trusted source for professional HVAC installation, repair, and maintenance in Los Angeles and the greater California region. With over 64 years of experience, our certified technicians handle everything from emergency AC repairs to complete system replacements.
Services
- AC RepairUSD 261–719 · ESTIMATE
- HVAC System DesignUSD 238–593 · ESTIMATE
- Heating InstallationUSD 89–184 · ESTIMATE
- Indoor Air QualityUSD 180–296 · ESTIMATE
- Radiant HeatingUSD 324–591 · ESTIMATE
- VentilationUSD 212–568 · ESTIMATE
Brands We Work With
Credentials
- License: LIC-36938-US Verified(California CSLB)
- Insurance: Verified
- Background check: Passed
- BBB: B-(1 complaint)BBB Profile
- Employees: 11-25
- Service radius: 46 km
Reviews (4)
- ★★★★★Impressed
Called National ThermalTech for an emergency repair and they were here within an hour. Professional, courteous, and got everything working again.
- ★★★★★Would use again
Called National ThermalTech for an emergency repair and they were here within an hour. Professional, courteous, and got everything working again.
- ★★★★★Excellent work
National ThermalTech diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.
- ★★★★★Top notch
National ThermalTech did an amazing job. The technician arrived on time, was very knowledgeable, and fixed the issue quickly. Fair pricing too.