Commercial HVAC Installation & Design-Build Services in the Pacific Northwest
TSS HVAC is your full-service partner for commercial HVAC design-build and installation. We deliver custom, energy-efficient systems for properties ranging from 3,000 to 500,000 square feet. Since 1985, businesses across the Pacific Northwest have trusted our team for precise planning, expert engineering, and flawless execution; on time and within budget.
Commercial HVAC Installation & Design-Build Services in the Pacific Northwest
Right-Sized Systems. Real Cost Control.
TSS HVAC is your full-service partner for commercial HVAC design-build and installation. We deliver custom, energy-efficient systems for properties ranging from 3,000 to 500,000 square feet. Since 1985, businesses across the Pacific Northwest have trusted our team for precise planning, expert engineering, and flawless execution; on time and within budget.
Why Choose TSS HVAC?
Human Support - Always
Real people, 24/7 - no phone trees.
Full Project Lifecycle Support
From design to install, our in-house team handles everything.
HVAC Design-Build
At TSS HVAC, our design-build approach combines HVAC engineering, construction, and installation into one streamlined process. This method simplifies coordination, shortens project timelines, and gives you a single point of accountability from first concept to final commissioning.
More importantly, it sets the foundation for energy-efficient system design from the start. By specifying high-efficiency equipment and optimized system layouts, we help reduce operating expenses from day one. Those ongoing energy savings can improve your return on investment and free up capital for future facility improvements and HVAC upgrades.
Commercial HVAC Installation & Project Services
System Retrofits & Replacements
Often viewed as “service work,” we treat retrofits as major efficiency projects. We integrate high-efficiency systems and smart controls into aging buildings to improve comfort and drastically reduce energy waste.
New Construction & Major Projects
We collaborate with owners and architects to design and install commercial HVAC systems optimized for long-term performance and cost efficiency.
Commercial cooling is about more than just lowering the temperature; it’s about maintaining air quality and managing humidity in high-traffic environments.
- Variable Refrigerant Flow (VRF): High-efficiency cooling that allows for zoned temperature control across different office sections.
- Rooftop Units (RTU): Space-saving, all-in-one cooling solutions ideal for retail and industrial footprints.
- Data Center Cooling: Specialized precision cooling to protect your most sensitive hardware from heat-related failure.
- Commercial Heat Pumps: Sustainable heating that extracts ambient heat from the air or ground to warm your facility efficiently.
- High-Output Furnaces: Reliable, high-AFUE gas furnaces designed for rapid heating in large, open-concept spaces.
- Boiler Systems: Specialized hydronic heating for consistent, quiet warmth in multi-unit complexes or older infrastructure.
Commercial AC & Heating Installation
- Tailored Cooling: Precision AC for your specific layout.
- Efficient Heating: Furnace and heat pump systems built for PNW winters.
- Transparent Recommendations: Budget-friendly options with no hidden fees.
Energy Efficiency Project Development & Financing
Turn energy savings into capital for your next HVAC project. Through our partnership with Climate Efficiency Partners (CEP), we develop energy-efficiency projects that use projected utility savings to help finance HVAC equipment upgrades, allowing you to improve your facility while minimizing upfront financial impact.
Benefits for Your Business
Zero Upfront Costs
- Energy savings help finance major HVAC upgrades.
Lower Operating Expenses
- High-efficiency systems cut utility bills by 10%–21%, or $0.10–$0.20 per square foot.
Trackable ESG Progress
- Emissions reductions and energy reports built into the service.
Future-Ready Systems
- Smart controls and sustainability baked in from the start.
About Plan & Spec Services
Types of Systems We Install
Single-Split Systems
Ideal for small spaces – one outdoor unit, one indoor unit.
Multi-Split Systems
Rooftop Units (RTUs)
Hybrid Split Systems
Air Handling Units (AHUs)
Move, filter, heat, and cool air throughout commercial buildings.
Dedicated Outdoor Air Systems (DOAS)
Bring in and condition fresh outdoor air to meet building ventilation needs.
Single-Split Systems
Ideal for heating or cooling individual spaces – one outdoor unit, one indoor unit.
Rooftop Systems (RTUs)
Packaged units installed on the roof to save indoor space and simplify service access.
Dual-Fuel (Hybrid) Systems
Energy-efficient systems that switch between electric heat pumps and gas heating to optimize performance.
Building Automation Systems (BAS)
Automatically monitor and control HVAC equipment to improve comfort and efficiency.
Indoor Air Quality (IAQ) Systems
Improve indoor air quality through filtration, ventilation, and humidity control.
Hydronic Systems
Use circulating hot or chilled water to heat and cool different areas of a building.
Commercial Refrigeration Systems
Maintain proper temperatures in walk-in coolers, freezers, and other commercial refrigeration equipment.
Commercial Boilers
Heat water for building heating systems, domestic hot water, and other commercial applications.
Commercial Furnaces
Gas-fired heating systems designed to heat large commercial and industrial spaces
Water Source Heat Pumps
Use a circulating water loop to heat and cool individual areas of a building.
Variable Air Volume (VAV)
Adjusts airflow to maintain desired temperatures in different zones.
Makeup Air Units
Replace exhausted indoor air with fresh outdoor air, heated or cooled as needed, to maintain proper building pressure.
Energy Recovery Ventilators (ERVs)
Recover heat and moisture from exhausted air to reduce heating and cooling costs.
Fan Coil Units (FCUs)
Use a fan and heating or cooling coil to control temperatures in individual rooms or zones.
Process Cooling Systems
Use chilled water, glycol, or refrigeration to control temperatures in industrial equipment and manufacturing processes.
Cooling Towers
Remove excess heat from water-cooled systems by releasing it outdoors through evaporation.
Chillers
Cool water or other fluids used to remove heat from large commercial buildings or industrial equipment.
Unit Heaters
Provide heating for warehouses, workshops, and other large commercial or industrial spaces.
Kitchen Exhaust Systems
Remove heat, smoke, grease, and moisture from commercial cooking areas.
HVAC System Monitoring
Tracks equipment performance to detect problems early and improve efficiency.
Remote Environmental Monitoring
Tracks temperature, humidity, and other building environmental conditions remotely using connected sensors.
VRF & Multi-Split Systems
Connect multiple indoor units to one outdoor unit, allowing for customized temperature settings in different zones.
40+ Years of Excellence in Commercial
HVAC Installation
Since 1985, businesses across the Pacific Northwest have relied on us as their commercial HVAC installation 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
Companies We Support





















Your Reliable Commercial HVAC Team in the Pacific Northwest
TSS HVAC is one of the most well-established heating, ventilation, and air conditioning service companies in the Pacific Northwest. We offer commercial and governmental HVAC repairs, maintenance, and installation in
Idaho, Oregon, and Washington.