About Us


About Grassi Refrigeration
Quality HVAC & Refrigeration Across the Walla Walla Valley



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 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 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 the Walla Walla Valley. In his free time, Chris participates in hunting and fishing. He is married with two children, and a German shorthaired dog and labrador complete his family.


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 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 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 joined the Grassi team in 2011, and left for a short period in 2015, before returning in 2016. He was born in Mexico and raised in the Pacific Northwest. He came to Walla Walla in 2000 and has been here ever since. He enjoys raising his family here in the Valley. Together, they spend as much time as they can outdoors, often hanging out at the river. When he has the time, Diego enjoys hunting, fishing, and hiking.


Rich joined the team in 2016. He was born and raised in Boise, Idaho, but his love for the Blue Mountains (and work) brought him here to us! Rich has sheet metal trade knowledge for the past 25 years! In Rich’s free time, he works on building cars and participates in drag racing. Rich is married and has 3 grown kids, and also has 2 cocker spaniels.


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


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 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.

Meet Our Staff
Grassi Management/Office Staff


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 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 has been with Grassi since 1997 and 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 2 dogs, camp, and four wheel with his wife.


Tami has been our Office Manager since early 2006. She was born here in Walla Walla and has lived here most of her life. Tami and her husband of 39 years raised their two children in the Valley. Her family and friends are very important to her and she spends as much time with them as possible. Her two grandchildren are at the center of her life. In her free time, Tami is active in our community. She volunteers with the Blue Mountain Humane Society and is on the board of the Walla Walla Exchange Club. Tami enjoys travel, shopping, scrapbooking, photography, and walking. She especially likes to participate in a variety of charity walks and fun runs.


Ashley was born and raised in the Walla Walla Valley and joined our team in 2010. She has two young daughters who keep her very busy. She stayed in the area to be close to her family and enjoys watching her girls grow up around family. In her spare time, Ashley enjoys scrapbooking and doing a variety of Fun Runs and Agility Challenges. She currently works as our Dispatcher.\


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.

Meet Our Staff
Grassi Warehouse


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.

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.