Commercial Mechanical & VRF Contractor in the Bay Area

3rdGen Building Systems delivers VRF systems, tenant improvement HVAC, mechanical retrofits, heat pump installations, and electrification upgrades for commercial and residential projects across San Francisco, Oakland, Berkeley, and the Peninsula.

Commercial HVAC & VRF Systems

VRF System Design & Installation

Design and installation of coordinated VRF systems for commercial and tenant improvement projects, including system layout, equipment selection, and disciplined field execution.

VRF Systems

Tenant Improvement

Design-build HVAC solutions for office, retail, and adaptive reuse projects, delivered in close coordination with general contractors and project teams.

Tenant improvement

Design-Build Mechanical

Integrated mechanical development and construction under one accountable team, from system planning and load calculations through installation and commissioning.

Design-Build

Mechanical Retrofits & Electrification

Heat pump conversions and performance-driven upgrades for existing commercial buildings transitioning to high-efficiency, all-electric HVAC systems.

Retrofits

Residential Heat Pump & Electrification Systems

Heat Pump Systems

Inverter-driven heat pump and multi-zone VRF installations designed for high-efficiency residential comfort. Precise temperature control, lower energy use, and long-term system performance.

Heat PUmp Systems

Electrification Retrofits

Full HVAC electrification replacing gas furnaces and legacy equipment with high-performance heat pump systems. Coordinated electrical, ventilation, and system upgrades for all-electric homes.

Electrification REtrofits

Indoor Air Quality

Balanced ventilation, ERV installation, advanced filtration, and make-up air solutions to improve indoor air quality and overall home performance.

Indoor Air Quality

Whole Home Mechanical Systems

Integrated heat pump, ventilation, and duct system upgrades engineered for comfort, efficiency, and long-term residential reliability.

Whole Home Systems

Commercial HVAC & Design-Build Mechanical Contractor in the Bay Area

3rdGen Building Systems is a Bay Area commercial HVAC and design-build mechanical contractor serving San Francisco, Oakland, Berkeley, Marin, Walnut Creek, and the Peninsula. We specialize in tenant improvement HVAC, VRF systems, heat pump retrofits, and coordinated mechanical planning for light commercial construction.

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CA License # 1086898

866-222-7980

team@3rdgen.io

1230 Fourth St, Unit A

Berkeley, CA 94710