How to Stop a House From Losing Heat

Written by brittany tucker
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How to Stop a House From Losing Heat
Use curtains to prevent your house from losing heat. (cabin in winter image by PHOTOFLY from

Few things are more unbearable than living in a cold house. Heat loss from a house can occur through the ceiling, floors and windows but most commonly occurs through house walls. According to Upper Valley Heat, air leakage or convection is the largest source of heat loss in most homes. Weatherizing your home is essential if you want to prevent your house from losing heat.

Skill level:

Things you need

  • Caulking
  • Weather stripping
  • Door sweeps
  • Insulation
  • Curtains
  • Scraper

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  1. 1

    Discover the specific area(s) in your house where heat is escaping. Walk around the perimeter of your house, inside and outside, and locate areas where warm air is exiting or cool air is entering into your house. Heat can escape a house through doors, keyholes, floors, walls, lofts, attics and windows.

  2. 2

    Close or seal all gaps around your doors, windows and other areas featuring small holes or openings in your house. Use caulking or weather stripping around your windows and install door sweeps under your doors to stop your house from losing heat. Follow all caulking, weather stripping and door sweep label directions carefully before applying the product(s) to your house. You can purchase caulking, weather stripping materials and door sweeps at your local hardware store.

  3. 3

    Insulate your house. Insulation keeps your house warmer during the winter and prevents heat loss. The insulation should be installed by a trained professional. According to the National Renewable Energy Laboratory, gaps and voids in the insulation, even small ones, create air leakage, which is also known as convection. If the insulation has been installed incorrectly, heat loss can occur as a result. Browse the Yellow Pages or ask your utility company or friends and family members for a list of reputable contractors in your area.

  4. 4

    Invest in heavy duty curtains and keep them closed at night. Curtains provide additional protection from the cold air outdoors by helping to keep heat in your home.

Tips and warnings

  • Consider having your windows double glazed by a professional if the caulking or weather stripping is still allowing heat to exit your house. According to ClimateCare, having your windows double glazed by a professional can reduce 50 per cent of your heat loss through windows.
  • Before you apply caulk to your windows, be sure to scrape the area around the windows to remove any paint chips or dirt.
  • Hiring a professional to insulate your home can be expensive.

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