Mill Creek Mechanical
2933 E Isaacs Ave
Walla Walla, WA 99362
United States
Walla Walla, WA 99362
United States
Phone: 509-527-0660
Email: mcmwallawalla@gmail.com
Email: mcmwallawalla@gmail.com
Important Wattsmart® Business program changes in 2026
California - Effective November 9, 2025, summary of changes (PDF) and more information here.
Washington - Effective January 1, 2026, summary of changes (PDF) and more information here.
If you have questions or need more information, please call us toll-free at 1-855-805-7231 or email us.
California - Effective November 9, 2025, summary of changes (PDF) and more information here.
Washington - Effective January 1, 2026, summary of changes (PDF) and more information here.
If you have questions or need more information, please call us toll-free at 1-855-805-7231 or email us.