Seattle WA's Top Name in Commercial HVAC Installation

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... Commercial HVAC Repair Seattle WA

Commercial Heating and Air Conditioning Repair Near Me




Through decades of experience in the industrial and commercial HVAC industry, Five Star Mechanical has maintained long-term partnerships with a wide variety of clients throughout the Seattle metropolitan area and Pacific Northwest. As energy costs continue to rise, we understand the importance of cost-effective, sustainable HVAC solutions for your business. Our knowledgeable team is committed to finding the solution that's right for your business and budget.

Five Star Service

  • 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
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Energy Efficient Solutions for HVAC Design, Tenant Improvement, New Construction, Equipment Replacement

At Five Star Mechanical, it's our goal to give you better control over managing your facility's energy consumption, ensure occupant comfort, and provide optimal indoor air quality. Whether it is new construction, a tenant improvement, or the replacement of existing equipment, we can customize an HVAC system that suits your needs. If it is time to upgrade or replace your property's HVAC system, we can explore options with you, make recommendations based on our extensive knowledge of the latest technology, and perform the installation.

Control Systems & RTU Tune Up

We can service your existing BAS (Building Automation System) control system or design and install a new one that better suits your needs. Advancements in technology have made these new systems easier to install, operate, and maintain, improving the operation of your facility and reducing your energy consumption. United States Department of Energy and ASHRAE both agree that "retrofit commissioning" of an HVAC roof top unit (RTU) is possibly the most cost-effective expenditure a business owner can make to save money and lower energy demand. An RTU tune up from Five Star Mechanical will get your equipment as close to factory specs as possible and lower your energy costs.

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Our Seattle Metro commercial heating and cooling experts are proud to service all brands, makes, and models, including:

AmanaAmerican StandardArmstrongBryant
General ElectricGoodmanKenmoreLennox

"When we first started using Five Star Mechanical, we quickly realized that they were the perfect company for providing expedient, thorough, and cost-effective HVAC service for us, and our customers. We receive emergency calls daily for critical care applications, and Five Star Mechanical has always responded on, or before the required response time. We have found their technicians to be highly skilled and educated, always courteous and friendly, and have never missed a 100% completion deadline. We've known Five Star Mechanical to work 24/7 if required to satisfy the customer's needs. We have worked with hundreds of contractors in the past, and can honestly say that Five Star Mechanical is one of our top two vendors. We have built business, and personal relationships with the fine staff of this organization and hope to continue expanding the services both our organizations can provide. We highly recommend Five Star Mechanical for any of your HVAC/R needs."

Need more info? Telephone Five Star Mechanical at: (253) 852-8284

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