Energy Efficient HVAC Experts in Issaquah WA

Five Star Mechanical is a commercial HVAC contractor specializing in maintenance, repairs, retrofits, installs, and energy conservation practices for commercial, industrial, educational, and governmental facilities throughout the 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

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 design and engineer a custom HVAC system to meet the unique needs of your enterprise. 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.

Learn more about our energy conservation practices and energy-efficient HVAC products!

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