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Custom Mechanical Services NW LLC has been meeting the HVAC service and installation needs of Southwest Washington for over 25 years as a top-tiered Certified Comfort Expert YORK® Dealer. We pride ourselves on our history as a locally owned and operated business in Ridgefield, WA. At CMS we are dedicated to bringing you honest and quality professional services. As our customer you are more than just a name; you are our neighbor, friend, schoolteacher, pastor, or family and we value you as such.

Our team is prepared to help you with all your residential and commercial heating and cooling needs including:

  • System Installation and Replacement
  • System Maintenance and Duct Cleaning
  • System Service and Repair
  • Clean Air Environmental Systems, Air Quality, Air Purification
  • Solar Energy, Green Energy Installations, Hydronics
  • Refrigeration, Plumbing, Fireplace, Electrical

We offer:

  • Free in home or on site written quotes
  •  5% return customer discount
  • Parts and Labor Warranty
  • Flexible scheduling and same day appointments*
  • Experienced industry experts to answer any questions

Ask about our affordable annual maintenance plans-the best option for keeping you comfortable and saving you from the hassle of unexpected repairs!

Trusted. Local. Experts. Since 1989.

*Subject to availability.

Reach out with any questions you have

Call us directly

Contact Your YORK®Dealer Now!

or call 360-356-1722

Why Choose
Custom Mechanical Services NW LLC

Locally Owned & Operated

Punctual Service

Prompt Project Completion

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Learn the essentials to maintaining the HVAC system in your home.

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Schedule an Appointment
Call 360-356-1722