Home energy audits in Masonville, London

What Masonville homes are made of

North London's 1970s–1990s homes come from the poly-vapour-barrier era: framed walls with fibreglass batts, a polyethylene vapour barrier, and forced-air heating, often with central air. Nominal insulation is respectable, but the forced-air systems and the rooms over garages tell the real story.

What an audit usually finds here

• Uneven rooms traced to unbalanced or leaky ductwork rather than to the furnace.
• Bonus rooms over garages with thin or gapped floor insulation.
• Attics worth topping up toward today's R-50 target.
• Ventilation that lags the airtightness — condensation on windows in winter is the tell.
• Original windows reaching the end of their life, which is when the $100-per-opening rebate matters.

Tests to ask for

• Duct leakage testing — the add-on to request by name in Masonville.
• The blower door and a thermal scan of the rooms over the garage.
• A ventilation assessment if you see winter condensation.
• A heat-loss calculation when the air conditioner or furnace comes due.

The rebates that fit

On the Home Renovation Savings assessment path, windows earn $100 per opening (at least three windows, or one door), air sealing $200–$250 and attic insulation up to $1,500. Any two unlock the $600 assessment rebate; three or more add a $500 bonus. Most Masonville homes heat with gas, so the total is capped at $5,000. Book the assessments through one of the program's seven approved service organizations, and have the follow-up done by December 31, 2026 — the program is only funded through 2026.

When the air conditioner dies, a heat pump in a gas-heated home earns up to $2,000 and can run alongside the furnace — how the heat pump rebates work.