CoEfficient Building Science is a leading building science consultancy located in Nanaimo, British Columbia dedicated to improving building performance and reducing environmental impact through expert energy solutions. Our services include comprehensive Home Energy Evaluation Services and EnerGuide Energy Audits to assess energy performance and identify opportunities to increase efficiency and comfort. We also offer precise Building Envelope Airtightness Testing and advanced consulting as a Residential Energy Efficiency Consultant and Commercial Building Energy Solutions provider, helping clients meet evolving building code and energy targets. Our team combines deep expertise in Passive Building Design Consulting, RetroFit Energy Performance Testing, and Energy Modeling And Simulation to deliver data-driven strategies that reduce energy costs and carbon output. Whether you are planning a new construction project or retrofitting an existing building, CoEfficient Building Science helps you achieve high performance and sustainability goals. Contact us today to schedule an evaluation and start optimizing your building’s energy efficiency.