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34 Years
experience
Emergency
services
Your Trusted HVAC Partner in Kenmore, WA
G B Systems has been delivering innovative HVAC solutions for over three decades. Founded in 1992, we specialize in design-build projects, tenant improvements, and comprehensive service maintenance for commercial, healthcare, education, and industrial facilities. Our NEBB-certified Test, Adjust, and Balance department ensures systems perform to exact specifications. With a focus on collaboration, we work closely with general contractors and property managers across the Puget Sound area to meet aggressive timelines while maintaining quality.

Our in-house engineering and fabrication teams enable customized solutions, including energy-efficient retrofits and specialized systems for restaurants, hospitals, and schools. Backed by long-term partnerships and a reputation for reliability, we offer 24/7 emergency service and prioritize client satisfaction through transparent communication and cost-saving innovations.
Services
HVAC Installation Tenant Improvements Service Maintenance Sheet Metal Fabrication Air & Water Balancing
Details
  • Year established: 1992
Highlights and features
  • We offer 30+ years of specialized HVAC experience in commercial construction.
  • Our NEBB-certified technicians ensure precision system balancing and performance.
  • 24/7 emergency service minimizes operational disruptions for clients.
  • We design specialized HVAC systems for challenging environments like hospitals and restaurants.
  • Collaborative approach with general contractors ensures timely, budget-conscious project delivery.
Associations and certifications
  • NEBB
What people say
Quality projects Flexible schedules Prompt problem-solving Trustworthy subcontractors Energy-efficient solutions
Services
HVAC Installation
G B Systems designs and installs custom HVAC systems for commercial and industrial buildings. Our engineers create energy-efficient solutions tailored to specific facility needs, including LEED-certified projects. We handle complete system integration from initial design through commissioning and long-term maintenance.
Tenant Improvements
We deliver turnkey tenant improvement services with in-house design, construction, and controls expertise. Our team works after-hours to minimize business disruption while completing HVAC upgrades, system retrofits, and space reconfigurations for commercial properties.
Service Maintenance
Our 24/7 service department provides scheduled inspections and emergency repairs for all mechanical systems. Certified technicians perform comprehensive equipment checks, refrigerant management, and system optimization to maintain peak performance and prevent costly failures.
Sheet Metal Fabrication
Our union-certified fabrication shop produces custom HVAC components including high-pressure ducts, specialty exhaust systems, and stainless steel flashing. We create precision parts to meet unique project specifications while maintaining strict quality standards.
Air & Water Balancing
As a NEBB-certified contractor, we ensure HVAC systems operate at designed efficiency through precise air and water flow adjustments. Our technicians use advanced diagnostics to optimize system performance, occupant comfort, and energy savings for commercial buildings.
Questions
What HVAC services does GB Systems offer?
We provide full-cycle HVAC services including design-build, tenant improvements, maintenance, emergency repairs, and NEBB-certified air/water balancing for commercial, healthcare, and industrial facilities.
Do you serve areas outside Puget Sound?
While our primary focus is the Puget Sound region, we evaluate projects in adjacent areas based on scope and client needs.
Are your technicians certified?
Yes, our team includes NEBB-certified professionals for testing, adjusting, and balancing HVAC systems to ensure optimal performance.
Can you handle specialized HVAC systems?
We specialize in complex systems for hospitals, restaurants, and schools, including low-voltage controls, VRF systems, and high-efficiency filtration.
What payment methods do you accept?
We accept major credit cards for your convenience, along with standard business payment terms for contracted projects.