Attic air sealing and insulation are often best done together — sealing gaps before adding insulation helps ensure the new insulation performs as expected and reduces the risk of moisture issues in the attic space.

As a home becomes more airtight, how fresh air enters and exits changes. A tighter home may need thoughtful ventilation to manage indoor air quality and humidity.

In homes with fuel-burning appliances, airtightness improvements can also affect how those appliances vent — your Energy Advisor (EA) can flag whether your setup warrants a ventilation or combustion safety review as part of the upgrade plan.

For more on insulation and air sealing, check out the Insulation Guide and the Air Sealing & Airtightness Guide. 

Window and door replacement is a significant investment — and it typically delivers more comfort and draft reduction than energy bill savings on its own.

For maximum energy impact, replacement is often most effective when combined with insulation and air sealing as part of a coordinated whole-home plan, rather than as a standalone upgrade.

For more on windows & doors, check out the Windows & Doors Guide → Step 1: Why Upgrading Windows & Doors Matter

Heat pump sizing, selection, and setup — sometimes called the three S factors — are all important for getting the performance you expect. Your pre-retrofit evaluation data, combined with a CSA F280 heat loss and heat gain calculation (see Benefits of Getting a Pre-retrofit EnerGuide Evaluation, CSA F280 and Mechanical Sizing), gives mechanical contractors the best foundation for sizing your system appropriately.

For more on heating & cooling systems, check out the Heating & Cooling Guide.

If your home already has an HRV, ask your Energy Advisor (EA) to check whether it's set up and operating correctly as part of the evaluation walkthrough. A poorly maintained or incorrectly set HRV is one of the most common and easily addressed ventilation issues in Manitoba homes.

For more on Ventilation, check out the Ventilation Guide.