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41 Years
experience
Emergency
services
Open 24/7
always available
Expert HVAC & Plumbing Services in Walla Walla
Mill Creek Mechanical has been serving Walla Walla and surrounding communities for over 38 years as a family-owned, veteran-operated business. Our team specializes in residential and commercial HVAC services, including heating, cooling, refrigeration, and emergency repairs. With a commitment to quality and customer satisfaction, we extend our expertise to plumbing services, commercial appliance repair, and espresso machine maintenance. Our technicians are trained to handle all brands and models, offering 24-hour emergency service and maintenance plans. Recognized with an A+ BBB rating, we prioritize transparency, reliability, and community trust.

Veterans and first responders receive exclusive discounts on repairs and installations. Located in Walla Walla, Washington, we combine decades of experience with cutting-edge technology to deliver efficient, long-lasting solutions. Our service philosophy centers on upfront pricing, personalized consultations, and ensuring systems operate at peak performance. From routine maintenance to complex installations, we strive to exceed expectations while maintaining our reputation as a locally trusted partner.
Services
HVAC Installation Commercial Refrigeration Plumbing Repairs Appliance Repair Espresso Machine Service
Details
  • Year established: 1985
Highlights and features
  • 38 years of combined HVAC and plumbing expertise
  • 24/7 emergency service with rapid response times
  • Veteran and first responder discounts available
  • A+ BBB rating for trusted business practices
  • Locally owned with deep community knowledge
Associations and certifications
  • Better Business Bureau (BBB)
Services
HVAC Installation
We provide expert HVAC installation for residential and commercial properties. Our technicians assess building requirements to recommend energy-efficient systems that match capacity and budget needs. All installations include comprehensive diagnostics of existing ductwork and components to ensure optimal performance.
Commercial Refrigeration
Specialized repair and maintenance for commercial kitchen refrigeration systems. Our certified technicians diagnose temperature control issues and perform urgent repairs to prevent business disruptions. We service all major brands with 24/7 emergency availability.
Plumbing Repairs
Comprehensive plumbing solutions for residential and commercial clients. Our licensed plumbers handle leak repairs, drain clearing, water heater installations, and septic tank services. We use advanced diagnostic tools to resolve issues efficiently while guaranteeing workmanship quality.
Appliance Repair
Full-service commercial appliance repair for restaurants and food service establishments. Our technicians service stoves, ovens, grills, and specialized equipment with minimal downtime. We maintain inventory of common replacement parts for immediate repairs.
Espresso Machine Service
Professional maintenance and repair for commercial espresso machines. Our technicians perform calibration, component replacement, and performance optimization to ensure consistent beverage quality. We service all major brands with preventative maintenance programs available.
Questions
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency HVAC repair services for both residential and commercial clients.
Are you certified for commercial refrigeration work?
Our technicians are certified to service all commercial refrigeration systems including restaurant and food service equipment.
Do you service both residential and commercial properties?
We offer complete HVAC, plumbing, and appliance services for both residential homes and commercial businesses.
What locations do you serve?
We primarily serve Walla Walla and Dayton, Washington with service extending to surrounding communities.
Are there discounts available for veterans?
We offer 20% off repairs and 10% off installations for veterans and first responders.
Do you provide maintenance programs?
Yes, we offer customized maintenance plans for HVAC systems and commercial equipment to prevent breakdowns.