Share your plans
Tell us about your home and where you notice draughts.
Weather Sealing
Weather Sealing
Seal the gaps around doors, windows, floors and chimneys that let cold air in, while keeping the ventilation your home needs.
Understand your options
What is weather sealing?
Draught proofing blocks unwanted gaps where cold air gets in and warm air escapes: around doors and windows, letterboxes and keyholes, floorboards and skirting, loft hatches, pipework and unused chimneys. A draught-free home can feel comfortable at a lower temperature.
Keep the ventilation you need
Ventilation keeps a home dry and healthy, so extractor fans, air bricks, wall vents and trickle vents should not be blocked, and rooms with open fires, flues or gas appliances need their ventilation left in place. The Energy Saving Trust says a home with no trickle vents, wall vents or mechanical ventilation may already be too airtight for draught proofing. National Mould Experts explains how ventilation and heating keep condensation mould away.
Typical costs and savings
The Energy Saving Trust estimates professional draught proofing of windows and doors at around £250 for a whole house, saving around £55 a year in Great Britain. Draught proofing an unused open chimney could save around £45 a year. Older homes with traditional features may need more specialist work.
These are typical figures, not prices for your home. Last reviewed September 2026. Source: Energy Saving Trust, draught proofing (updated May 2026).
Tell us about the job and we'll find up to 3 local draught-proofing specialists who cover your area and ask them to contact you with a quote. The specialist checks your home before quoting.
From enquiry to installation
Your next steps, made clear.
Find the gaps
A specialist checks doors, windows, floors, hatches and chimneys, and notes the ventilation that must stay open.
Review your quote
Ask for a written quote listing each area, the materials to be used and anything that will be left ventilated.
Fitting and checks
Seals, brushes and excluders are fitted, and doors and windows are checked to make sure they still open and close properly.
Where do draughts usually come from?
Gaps around external doors and windows, letterboxes, keyholes, loft hatches, floorboards and skirting, pipes through outside walls, and unused chimneys.
Will draught proofing affect ventilation?
It should not remove the ventilation your home needs. Extractor fans, air bricks, wall vents and trickle vents stay clear, internal doors keep a gap underneath, and rooms with open fires or gas appliances keep their ventilation.
Can sash windows be draught proofed?
Yes. Foam strips do not work well on sliding sashes, so brush strips are normally used, or you can ask a specialist.
How long does draught proofing last?
It depends on the material and how much the door or window is used. Self-adhesive foam strips are cheap but may not last long; brush or wiper strips cost a little more and last longer.
Is draught proofing worth it?
It is one of the cheaper energy improvements. The Energy Saving Trust estimates around £250 for professional draught proofing of windows and doors, saving around £55 a year in Great Britain, which at those figures pays for itself in roughly four to five years.
Should I block up my chimney?
Do not seal it completely. A chimney cap or a chimney draught excluder reduces draughts while leaving some ventilation. Remove any excluder before lighting a fire.
Your next step
A warmer home.
Let's start with a conversation.
Tell us what you need. We'll help you find the right specialist.