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Grassi has been serving the Walla Walla Valley since 1958 and is family owned and operated. We are committed to honesty, integrity, quality, pride in workmanship, and a high standard of business ethics. Our years of hard work have paid off in a business that continues to grow through referrals of satisfied clients. For many years, customers have relied on Grassi Refrigeration to provide prompt, reliable and quality service. Grassi repairs designs and installs air conditioning and heating systems for both residential and commercial customers throughout the Walla Walla Valley., Welcome to Grassi Refrigeration