About
Diamond TempMasters is a full-service HVAC contractor based in Seattle, Washington. Since 1974, we have built a reputation for honest, dependable service. Whether you need a new furnace installation, air conditioner repair, or a complete HVAC system upgrade, our factory-trained technicians are ready to help.
Services
- AC RepairUSD 297–412 · ESTIMATE
- Emergency ServicesUSD 330–734 · ESTIMATE
- Heat Pump ServicesUSD 130–444 · ESTIMATE
- Indoor Air QualityUSD 256–564 · ESTIMATE
- VentilationUSD 254–307 · ESTIMATE
Brands We Work With
Credentials
- License: LIC-94657-US Verified(Washington L&I)
- Insurance: Not verified
- Background check: Passed
- Employees: 51-100
- Service radius: 78 km
Reviews (9)
- ★★★★★Five stars
Very happy with the service from Diamond TempMasters. They replaced our entire HVAC system and the difference is night and day. Highly recommend.
- ★★★★★Very professional
Diamond TempMasters installed a new furnace for us last month. Great communication throughout the process and the crew was very respectful of our home.
- ★★★★★Best in town
Diamond TempMasters installed a new furnace for us last month. Great communication throughout the process and the crew was very respectful of our home.
- ★★★★★Top notch
Diamond TempMasters diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.
- ★★★★★Impressed
Diamond TempMasters diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.
- ★★★★☆Friendly and efficient
Very happy with the service from Diamond TempMasters. They replaced our entire HVAC system and the difference is night and day. Highly recommend.
- ★★★★★Top notch
Diamond TempMasters did an amazing job. The technician arrived on time, was very knowledgeable, and fixed the issue quickly. Fair pricing too.
- ★★☆☆☆Reliable and fair
Diamond TempMasters installed a new furnace for us last month. Great communication throughout the process and the crew was very respectful of our home.
- ★★★★★Top notch
Outstanding customer service from start to finish. Diamond TempMasters went above and beyond to make sure we were comfortable.