• Service & Maintenance
    Get reliable repairs and comprehensive maintenance for any commercial HVAC system - available 24/7.
    Keep Your System Running
  • New
    We can design and engineer a custom HVAC system to meet the unique needs of your enterprise.
    Install the Right System
  • Energy
    Let us assess your facility’s efficiency, implement energy-saving improvements, and save you money.
    Cut Your Costs
  • It is gratifying to work with a firm with Five Star’s integrity, skills, responsiveness, and ability to constantly exceed it’s customers objectives! Please extend our heartfelt thanks and appreciation to your Five Star team for a wonderful job! Dave Garrison, High Five Sportswear, Seattle WA
  • Five Star Mechanical is a pleasure to work with. Their technicians and staff are knowledgeable and provide quality service for our clients. - Ann Mulder, Solus Industries
  • Jeff…Great job to you and your crews. Thank you for doing a great job on the HVAC replacement. Your interaction with the Store Manager is such a big part of us doing a project with no issues. I was told you would do a great job by Doug and he was right…thank you, thank you for doing a great job and keeping me in good graces. - Marie L.
Read More Testimonials

Commercial HVAC Contractor Servicing Greater Seattle Washington Region

We are a family-owned company specializing in commercial heating, ventilation, and air conditioning (HVAC) services, providing unparalleled service and value in the Western Washington region since 1999. Our team of skilled, knowledgeable managers and technicians are committed to finding a solution that is right for your business and your budget. Proudly serving the greater Puget Sound area including Tacoma and Seattle from our centrally located dispatch office in Algona.

Five Star Guarantee of Excellence

At Five Star Mechanical, we strive to have long-term partnerships with our customers and we pride ourselves on our integrity, responsiveness, and the superior quality of our service. To demonstrate our commitment to our customers, we offer the following guarantees:

100% Satisfaction Guaranteed
  • One-year guarantee on work completed
  • A qualified technician on call 24/7/365
  • A live operator answering our phones
  • 24/7/365 same-day response

Call us to find out how we can increase your energy efficiency, extend the life of your equipment, and save you money.

  • Service, repair, and maintenance of your existing HVAC system
  • Design, engineer, and install a new HVAC system
  • Upgrade your HVAC control system
  • Assess your facility’s energy efficiency and implement energy-saving improvements

With our technicians answering phones 24 hours a day, 7 days a week, your satisfaction is truly our #1 priority. Get the right peace of mind and let us inspect your furnace or air conditioning systems, give us a call today!