No one likes paying for heat that just escapes out the walls. If your heating bills keep climbing but your home still feels cold, chances are your house is leaking warmth. The good news? Spotting the signs early can help you fix it, cut your bills, and make your home warmer with the same energy you're already using. Here are the 5 most common signs your home is losing heat:
Cold walls, floors and draughty rooms
Walk around your home on a cold day. Do some rooms feel noticeably colder, even with the heating on? Do you feel a chill near windows, doors, skirting boards, or floorboards?
What it meansPoor insulation, gaps, and draughts let warm air out and cold air in. You're paying to heat the outside.
Quick fix: Draught-proofing strips, door brushes, and sealing gaps can make an immediate difference. Long-term, wall and loft insulation helps.
Your heating is on constantly but the house never feels warm
If your boiler or heat pump runs all day and your thermostat still struggles to hit temperature, your home is losing heat faster than your system can replace it.
What it meansHeat is escaping through the roof, walls, or windows. Your system is working overtime, which drives up energy bills.
Quick fix: Check your insulation levels. A well-insulated home holds heat for hours, not minutes.
Condensation and damp patches
Seeing condensation on windows, mould in corners, or cold damp patches on walls?
What it meansCold surfaces inside your home cause warm, moist air to condense. It's a sign of poor insulation and ventilation, and it also makes rooms feel colder.
Quick fix: Improve ventilation, but also tackle the root cause with insulation and energy efficient measures to keep surfaces warmer.
High energy bills compared to similar homes
Compare your winter energy bill to last year, or to neighbours in similar homes. If yours is much higher for the same comfort level...
What it meansYou're paying for heat that's escaping. In the UK, up to 25% of heat can be lost through an uninsulated roof, and up to 35% through walls.
Quick fix: An energy assessment can pinpoint where you're losing the most. Grants like ECO4 and GBIS may help cover costs.
You can see light or feel air around doors and windows
Hold your hand near window frames and external doors. Can you feel a draught? Can you see daylight around the edges?
What it meansOld double glazing, gaps, and poorly fitted doors are a major heat leak. It's like leaving a small window open all winter.
Quick fix: Secondary glazing, new seals, or upgrading to energy-rated windows and doors can stop the leak.
So, what can you do about it?
Losing heat isn't just uncomfortable. It's expensive. The most effective solutions are:
- Loft and wall insulation — keeps heat in for longer
- Draught proofing — seals the easy leaks
- Air source heat pumps + smart controls — heat your home efficiently
- Solar PV — use your own energy to power heating and hot water
At Intra Energy Limited, our delivery approach covers all of this. We survey your home, recommend MCS-compliant upgrades, and install air source heat pumps, solar PV, and energy efficiency measures designed to stop heat loss and lower bills.
Stop paying to heat the outside
If 2 or more of these signs sound familiar, it's time for an energy check. Get in touch for a free home assessment and we'll show you where your heat is going, and how to keep it where it belongs.
