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Draught Proofing

Draught proofing is one of the cheapest and most efficient ways to save energy and money, in any type of building. Draught proofing (also referred to as draft proofing) prevents too much cold air from entering the property, which then wastes heat.

Draught proofing windows and doors are essential for keeping your property cosy and to use less energy. Adequate draught seals can help save you money and reduces energy bills by trapping in heat.

Hear and Heat Insulation, we have offered draught-proofing services for over 30 years. Our team of draught-proofing installers are experienced and friendly and are happy to answer any queries you may have. Our draught-proofing installers will attend to your property and assess any potential gaps in the construction, before advising you on your best options.

We have pulled together our most frequently asked questions, to help you understand the cost of draught-proofing, our draught-proofing measures, and the energy you can save through fraught proofing.

How much could you save by draught proofing?

Draught proofing around windows and doors could save you on average between £10 to £50 per year. Draught-free homes are comfortable at lower temperatures – so you’ll be able to turn down your thermostat. This could save you another 10% off your heating bill.

Draught proofing your home

Where to Look for Draughts

Draughts happen where there are unwanted gaps in the construction of your home, and where openings are left uncovered.

You’ll find draughts at any accidental gap in your home that leads outside, such as:

  • Windows
  • Doors – including keyholes and letterboxes
  • Loft hatches
  • Electrical fittings on walls and ceilings
  • Suspended floorboards
  • Pipework leading outside
  • Ceiling-to-wall joints

You should block most of these – but be careful in areas that need good ventilation:

  • Areas where there are open fires or open flues
  • Rooms where a lot of moisture is produced, such as the kitchens, bathrooms and utility rooms


Air needs to flow in and out of your house so it stays fresh, dry and healthy.

Make sure you don’t block or seal any intentional ventilation:

  • Extractor fans
    These take out damp air quickly in rooms where lots of moisture is produced (kitchens, bathrooms and utility rooms)
  • Under-floor grilles or airbricks
    This helps keep wooden beams and floors dry
  • Wall vents
    These let small amounts of fresh air into rooms
  • Trickle vents
    Modern windows often have small vents above them to let fresh air trickle in.

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