Welcome to Grassi Refrigeration
High Quality HVAC & Electrical Services in Walla Walla, WA

Since 1958, Grassi Refrigeration has provided a range of heating, cooling and electric services in Walla Walla, WA and surrounding communities. We proudly serve residential and commercial HVAC clients and work hard to be a trusted name for service and HVAC and Refrigeration Repair. Our team believes in going the extra mile for customers, to increase their system’s energy efficiency and we are committed to your satisfaction.

As a family owned and operated business, we value honesty, quality, integrity, and a maintain high standard of business ethics. Our HVAC technicians, electricians, installers, and support staff take pride in our workmanship. We are proud to provide a full range of heating, cooling, electrical, refrigeration services to homes and businesses across the Walla Walla Valley. We are an authorized dealer of Carrier products.

Our goal is to provide our customers with fast, efficient, and friendly services. Customer satisfaction is of utmost importance to us, and we are committed to building lifelong relationships through our superior craftsmanship. We offer service to all major brands of equipment, including Carrier, Lennox, Trane, American Standard, Ruud, Rheem, Goodman, and more. For more information about our services or to schedule maintenance or repairs, please contact us today at 509-529-9700.

Serving Homeowners Across the Walla Walla Valley


We offer a wide range of heating, ventilation, and cooling services for homeowners, including annual maintenance plans, HVAC repair, new product installation and more.

Reliable Commercial HVAC & Refrigeration Service


Our commercial HVAC services will ensure you, your customers, and staff are comfortable in your staff or facilities. We serve a range of businesses and industries across the Valley.

Quality Electrical Services For Homes & Businesses


Since 2009, we have provided a range of residential, commercial and industrial electrical services including repair, installation, home inspections, and panel upgrade services.