Tom Balderston, Sr. Building Performance Consultant
Balderston Associates, Seattle

With over 30 years as a green builder, designer, general contractor, Tom brings in depth knowledge and passion for low energy buildings. He is committed to finding practical and innovative ways to bring low energy homes to the mass market.  As a professional resource to builders, and architects, Tom provides field support to project teams. After 12 years as a technical lead for Conservation Services Group developing and implementing retrofit and new construction Programs, Tom is active as a Green Performance consultant, providing LEED Midrise,  LEED for Homes, Built Green, ENERGY STAR, and Passive House Certifications and energy modeling.


Current Organizations: 

NW Ecobuilding Guild (Education committee)

King Snohomish Built Green Executive Committee

Certified HERS Rater,  LEED for homes rater, ENERGY STAR verifier, BPI 

PTCS technician for duct testing, Blower door testing, and heat pump commissioning. 

DOE Building America  - case study coordinator

Home Performance Washington – founding member

PassiveHouse Washington


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The Northwest Green Building Slam + Summit is presented by the Northwest EcoBuilding Guild.