About Grassi Refrigeration

Quality HVAC & Refrigeration Across the Walla Walla Valley

HVAC services in Walla Walla, WA

Grassi Refrigeration has provided reputable heating, ventilation, and cooling services across the Walla Walla Valley since 1958. As a family-owned and operated business, we know the importance of providing our customers with high-quality, reliable, and affordable services. We are proud to serve both residential and commercial HVAC clients in Walla Walla, College Place, and surrounding communities in Washington.

Since our beginning, we have been committed to providing quality, superior service, and fast, efficient workmanship. We specialize in commercial and residential HVAC services including HVAC repair, system installation, and routine maintenance. We are dedicated to helping you make your home or business more energy efficient. We provide service, installation, and repair services for a variety of products and systems including air conditioners, heat pumps, furnaces, freestanding stoves, fireplaces, generators, thermostats, and more.

To improve the efficiency and quality of our work, we are proud to have an in-house sheet metal shop. This ensures our work can be customized to meet your unique needs.

Throughout the years, Grassi Refrigeration has built a reputation for our prompt, reliable, and honest services. We have been voted #1 in the Walla Walla Union Bulletin’s “Readers’ Choice Awards.” as well as the “Best of the Best, Heating Contractor.” In addition to being recognized by our community members and customers, we have been recognized by Carrier with the Infinity Leader Award. We are an authorized Carrier generator dealer and our employees are factory-trained to ensure you receive the products and service you deserve.

Meet Our Staff

Grassi Service Technicians


Randy | Grassi Refrigeration

Randy is a retired Volunteer Firefighter from Westside Fire & Rescue in Westside, IA. He joined the Grassi team in 2011 as a Service Technician and brings 13+ years of experience in the HVAC/R and Electrical field. He has his HVAC/R Electrical License in Washington State. Randy lives on the Confederated Tribe of the Umatilla Indian Reservation where he loves to garden and river kayak.


Chris | Grassi Refrigeration

Chris joined our team as a Service Tech in early 2016. He came to the Northwest from Southern California. The accessibility to the Blue Mountains and the rivers has kept him here. In his free time, Chris participates in hunting and fishing, He is married with 2 children and 2 German Shorthaired dogs.


Jefferson | Grassi Refrigeration

Jefferson began working for Grassi in 2023 in the service department. He was born and raised in Walla Walla. He has stayed in Walla Walla for the sense of community and the great outdoors. Jefferson has earned a degree in energy systems technology from the WW community college. He enjoys bicycling, hiking, and archery. He has 1 cat named Garfield.


Jeremy | Grassi Refrigeration

Jeremy came to work for Grassi in 2021 in the service department. He was born and raised in Boise, Idaho. He came to Walla Walla to learn a new trade and for a change of scenery. Jeremy earned a degree at WW Community College in the Energy Systems Technology program. In his free time, he enjoys reading and helping his neighbors. Jeremy has 1 cat named Lemongrab.


TJ | Grassi Refrigeration

TJ started working for Grassi in 2019 in the service department. He was born in Scotland and raised in Walla Walla. TJ has earned an AAAS degree from WW Community College in Energy Systems Technology. In his free time, TJ says he likes to “not work”. He has 2 girls and 1 boy.

Meet Our Staff

Grassi Installers


Diego | Grassi Refrigeration

Diego joined the Grassi team in 2011. He left in 2015 for a short period and returned to Grassi in 2016. He was born in Mexico and raised in the Pacific Northwest. He came to Walla Walla in 2000 and has been here since. He enjoys raising his family here in the valley and together they spend as much time outdoors as possible, hunting, fishing, hiking, and hanging out at the river.


Chris | Grassi Refrigeration

Chris started working for Grassi in 2022 as an installer. He was born and raised in Washington State. He came to Walla Walla to be near family. Chris enjoys fishing and has two dogs.


Josh | Grassi Refrigeration

Josh began working for Grassi in 2021. He was born in Pendleton and raised in Milton Freewater. He has one daughter and spends his free time doing family activities.


Anthony | Grassi Refrigeration

Anthony began working for Grassi as an installer in 2019. He was born and raised here in Walla Walla and has stayed here to be near family. When not working, Anthony enjoys the outdoors, hunting and fishing. He has 2 boys and 2 dogs named Boone and Monte.


Justin | Grassi Refrigeration

Justin started working for Grassi in 2023 as an installer. He was born and raised in Walla Walla. He jokes that he has stayed here because he is too lazy to move. Justin enjoys playing video games with his kids and being in his bowling league. He has 2 children and a dog named Koba.


Josh | Grassi Refrigeration

Mike started at Grassi in 2023 as an installer. He brings 7 years of experience in the HVAC field. He was born in southern California and moved to the Walla Walla area for a change of pace from the big city life. Mike is married and has 3 children, a son 26, and two daughters ages15 & 7. In his spare time, he likes to produce music.

Meet Our Staff

Grassi Management/Office Staff


Alex | Grassi Refrigeration

Born and raised in the Walla Walla Valley, Alex grew up working part-time for Grassi Refrigeration. He received his refrigeration degree and after working full-time with the company for many years, he has now taken over the business from his father, Arnie. Alex enjoys golfing, going to sporting events, and spending time with his wife and three daughters.


John | Grassi Refrigeration

John has worked for Grassi since 1987 and is now our General Manager. He has been in the area his entire life, with the exception of the four years he served in the United States Coast Guard. After returning home from the Coast Guard in Alabama, he attended Walla Walla Community College and began working in the HVAC field. Since 1980, he has been a volunteer firefighter / EMT with the Walla Walla County First District. John, along with his wife, has two grown daughters and two granddaughters. In his free time, he enjoys fishing, gardening, and keeping up with his granddaughters.


Jeff | Grassi Refrigeration

Jeff has been with Grassi since 1997 and is currently our Service Manager. He moved to Walla Walla from Enterprise, OR, and earned his AA degree at Eastern Oregon State College and Walla Walla Community College. Prior to working at Grassi, Jeff worked in the timber industry. In his free time, he loves to fish, hunt with his dog, camp, and four-wheel with his wife.


Tami | Grassi Refrigeration

Tami has been the office manager since 2006.  She was born in Walla Walla and has lived here most of her life.  She and her husband raised two children in the valley. Tami’s family and friends are very important to her, and she spends as much time with them as possible. Her two grandchildren are the center of her life.  Tami has a Golden Lab named Piper that means the world to her. In her free time, she enjoys traveling, shopping, baking and walking. She especially likes to participate in a variety of charity walks.


Ashley | Grassi Refrigeration

Ashley was born and raised in the Walla Walla area and joined our team in 2010 as our Dispatcher. She stayed in the area to be close to her family. She enjoys spending time with her husband, kids and cats.


Tammy | Grassi Refrigeration

Tammy began working for Grassi in 2022 in the Accounts Receivable department. She was raised in Walla Walla and has two daughters and 4 grandchildren. Tammy enjoys spending time at the river with family and friends, snowmobiling, and taking her grandkids snowboarding. Tammy also likes to travel.


Rich | Grassi Refrigeration

Rich was born and raised in Boise, Idaho. He came to the Walla Walla area with his family for
work, and decided this was where he wanted to call home. He started at Grassi in 2016 bringing
over 25 years of experience in the HVAC industry. He started with Grassi as an Installer and is
now Project Manager. Rich enjoys working on cars and drag races at various tracks here in the
Pacific Northwest. Rich has been married for 25 years, and has 3 grown children, 3
grandchildren, and 2 dogs.


Rich | Grassi Refrigeration

Kris started with Grassi in 2023. She was born and raised in Boise Idaho and moved to the area 30 years ago with her husband and family. The small-town feeling is what she likes about living here. She shares husband’s passion for drag racing/ She also enjoys reading books and crocheting, Kris has 3 grown children 3 grandchildren and 2 dogs.

Meet Our Staff

Grassi Warehouse


Fred | Grassi Refrigeration

Fred has been at Grassi since 2014 working in the parts warehouse. He was born in Spokane and raised in the west from CA to AK. Fred came to Walla Walla because of his dad’s health. He served our country in the army. Fred makes time to enjoy fishing and running. He is married with 2 grown children and 5 grandchildren.


Fred | Grassi Refrigeration

Kam started working for Grassi in 2023 in our warehouse after graduating from McLoughlin High School. He was born and raised here in the Walla Walla area. In his spare time Kam helps his brother-in-law with his family’s bee business, He enjoys spending time with his older sister, her husband, niece and soon a nephew.  When he is not working, he spends his time drag racing, hunting, and four wheeling up in the mountains.

Interested in joining our team? Check out our Employment Opportunities!

For more information about our HVAC company, our range of heating, cooling, and ventilation services, or to schedule service, please contact us today at 509-529-9700.

Business Hours:
Monday - Friday: 7:30 am - 4:00 pm

Phone: 509-529-9700
Fax: 509-525-3666
Email: info@grassi.us

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Heating & Cooling Contractor in Walla Walla WA | Grassi Refrigeration