Who Are We?

Barrier Sciences Group (BSG) is a building envelope consulting firm that offers a unique, incremental approach to deep energy retrofits for residential, industrial, commercial and institutional buildings. With nearly half a decade of experience, BSG offers a complete list of energy management services, including certified energy audits, home inspections, project management, pre-drywall blower door tests and more. Building managers, contractors and homeowners across all of Ontario trust BSG to increase the energy efficiency and structural integrity of their homes or buildings.


The Canada Greener Homes Grant offers home efficiency renovation grants up to $5,000.

Homeowners Canada-wide are eligible for the Canada Greener Homes Grant, announced on May 27, 2021. This new incentive offers up to $5,000 in grants for home efficiency retrofit renovations, plus a $600 reimbursement for pre- and post-work EnerGuide evaluations. Eligible retrofit scopes include home insulation, heating, doors, windows, photovoltaic solar panels, resiliency measures, and thermostats.

Learn More

Please, enter a valid value

Incorrect values!

Thank You!

Your inquiry has been successfully submitted!
We will contact you shortly.

Please, enter a valid value