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

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Unusually high energy costs.


Drafty rooms and uneven temperatures.

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Cold floors and walls in the winter.

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Mould in the basement.

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Ice dams or snow melting on your roof.

Does my home need insulation? Part 1

What’s the biggest indicator of poor insulation? How can a home energy assessment help? Get answers with part one of our insulation basics videos.

Does my home need insulation? Part 2

What are the most common places air escapes? Watch our quick video to see where to seal and save.

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

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    Door and window frames.

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    Electrical outlets and switches.

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    Trim and baseboards.

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    Fans and vents.

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    Ceiling fixtures.

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    Fireplace dampers.

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    Attic hatches.

No-cost tips

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

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

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

Low-cost tips

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

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

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    Use expandable spray foam to seal irregular-shaped gaps.

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

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

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

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    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 Plus

Planning a home renovation? Get up to $10,000 back.

We offer rebates to help offset the cost of home insulation, windows and doors, heat pumps and renewable energy systems.

See rebates

Smart Thermostat Program

Save $75 instantly on a smart thermostat

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

Get discount code