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

Since 1958, Grassi Refrigeration has provided a range of heating and cooling 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, installers, and support staff take pride in our workmanship. We are proud to provide a full range of heating, cooling, 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.

Mike and France Bertram
Mike and France Bertram
Solid service, always professional.
Patricia Meyer
Patricia Meyer
Top rate technicians, very professional staff, quality product. Highly recommend
Surprised when able to have immediate service when our furnace failed to respond after the power had been turned off for changing out our range. Codi Powers was efficient, explained what he was doing and tracked down our issue. He explained why it had occured in the first place and how to prevent it from happening in the future. Thank you, Codi. We were provided with a written invoice to be paid upon reciept of a bill. From reading other reviews hopefully that final bill will match the one Codi provided. He is a worthy employee and had serviced our AC a year ago, as well. Jo Records