Save with energy-efficient insulation

Drafty rooms and rising heating costs are all signs you may have energy escaping. Insulation, combined with air sealing, is an effective way to improve home comfort, reduce costs and lessen your environmental impact. Learn why it’s a smart investment and get rebates to upgrade.

5 ways to tell if your home needs better insulation

Dollar sign icon

Unusually high energy costs.

Weatherproofing

Drafty rooms and uneven temperatures.

snow icon

Cold floors and walls in the winter.

Mould icon

Mould in the basement.

roof icon

Ice dams or snow melting on your roof.

How to stop air leaks

The first step is to find where heat is escaping. A typical home loses more as much as 40 percent of its energy costs through tiny cracks. On a windy day, light an incense stick and hold it near common leak areas. If the smoke flutters, there’s a leak.

Top spots to check

  • Checkmark

    Door and window frames.

  • Checkmark

    Electrical outlets and switches.

  • Checkmark

    Trim and baseboards.

  • Checkmark

    Fans and vents.

  • Checkmark

    Ceiling fixtures.

  • Checkmark

    Fireplace dampers.

  • Checkmark

    Attic hatches.

No-cost tips

  • Checkmark

    Keep your fireplace damper closed to prevent heat from escaping through the chimney.

  • Checkmark

    Clean the tracks on sliding doors to keep them free from dust and debris.

  • Checkmark

    Look for dirty spots on ceiling paint and carpeting—this may indicate an air leak.

Low-cost tips

  • Checkmark

    Buy door sweeps to skirt door frames and prevent drafts from leaking out from under the door.

  • Checkmark

    Caulk around window casings, baseboards, door frames and wood trim.

  • Checkmark

    Use expandable spray foam to seal irregular-shaped gaps.

  • Checkmark

    Prevent heat loss by using foam gaskets to insulate outlets and light switches.

  • Checkmark

    Seal the seams of heating ducts with foil tape to prevent air from escaping.

  • Checkmark

    During winter months, use heat-shrink plastic on windows for extra glazing.

  • Checkmark

    Use weather stripping around door and window frames.

How-to videos

FREE energy upgrades for homes in need

If your household income is eligible, we’ll install new insulation, draft proofing and a smart thermostat—at no cost to you.

See if you qualify

More offers for your home

Home Efficiency Rebate

Planning a home renovation? Get up to $5,000 back.

We offer rebates to help offset the cost of insulation, air sealing, furnaces, boilers, water heaters, new windows and doors.

See rebates

Smart Thermostat Program

Save $75 instantly on a smart thermostat

Before you buy, get a discount code for eligible Google Nest, ecobee, Sensi and Honeywell models. Redeem online or in store.

Get discount code