Commercial HVAC Excellence in The PNW Since 1985

HVAC Engineering Company

TSS HVAC delivers energy-efficient, custom solutions that combine design, construction, and installation under one contract. Our design-build approach helps commercial clients improve energy efficiency and performance.

Installation Services

TSS HVAC provides expert commercial HVAC installation across the Pacific Northwest. Since 1985, businesses have trusted us for energy-efficient systems, expert planning, and installations done right—on time, on budget, and built to perform.

Quarterly Maintenance

TSS HVAC offers quarterly commercial HVAC maintenance that helps prevent breakdowns, lower operating costs, and extend system life. Our certified techs keep your system running efficiently with expert service trusted across the Pacific Northwest.

HVAC Repair

Our team provides fast, reliable commercial HVAC repair services 24/7. Our certified technicians quickly diagnose and fix issues to minimize downtime and restore comfort—trusted by businesses across the Pacific Northwest since 1985.

24/7 Service

We always answer the phone with a human - 24/7, and we respond very quickly.

Speedy Response

We respond swiftly to emergencies, ensuring you're back up and running in no time.

Rapid Response You Can Count On

Talk to a Real Person, Right Now

When your system goes down, you don’t need an automated machine or a long waiting list. You need an expert. At TSS HVAC, we prioritize "Human-to-Human" service 24/7.

Direct Connection: No complex phone trees.
Guaranteed Callback: Explicitly stated—a real person from our local team will call you back to coordinate your service immediately.
24/7 Availability: We are ready whenever you are, ensuring your facility stays operational.

Industries We Serve

TSS HVAC provides reliable, energy-efficient HVAC solutions for a wide range of commercial and industrial clients across the Pacific Northwest. From healthcare facilities to manufacturing plants, we design, install, and maintain systems built for performance, safety, and long-term value.

Healthcare & Senior Living
Education & Government
Manufacturing & Food Processing
Office & Retail Buildings
Hospitality & Entertainment
Religious & Institutional Facilities

Choose TSS as Your Commercial HVAC Company

30+ Years of Excellence in Commercial HVAC

Since 1985, businesses across the Pacific Northwest have relied on us as their commercial HVAC contractors. Our NATE-certified technicians deliver fast, dependable service that keeps systems running efficiently. With long-standing industry affiliations and partnerships with leading brands, we’ve built a reputation for excellence that stands the test of time.

Idaho, Portland, & Seattle

Richland Federal Building received a 96+% Customer Satisfaction Rating for Operations & Maintenance. Customer satisfaction ratings that high are ‘unheard of’ within both GSA and its stable of contractors. I would like to extend TSS thanks and the highest commendations for the great work you and you’re techs have done here.

We want to thank you for providing excellent service…we appreciate your hard work. We wish more contractors had the urgency TSS techs do.

Thank you very much for your prompt response! You guys have been great to work with and I appreciate the honesty of the techs when they come out!” TSS has replaced the HVAC Company we were working with.