Why Is My House Still Cold with the Heating On? Simple Fixes and Expert Advice

Ever turned up your heating only to find that your home still feels chilly or draughty? You’re not alone. Some residents across Lancashire struggle to keep their homes warm, even when their radiators are running.

Understanding why your home loses heat, dispelling common heating myths, and applying low-cost fixes can make a difference in keeping your home warm and bills manageable.

The common reasons your home isn't retaining heat

Feeling cold with the heating on usually comes down to a mix of financial pressures, structural heat loss, and a lack of familiarity with home controls.

Rising energy costs

With energy prices remaining high, some residents and vulnerable households may keep their heating turned down to save money. If heating isn’t run efficiently, a home can quickly drop to temperatures that impact comfort and health.

Hidden heat leaks and draughts

Heat rises and escapes through every available opening. Common structural causes of heat loss include:

• Unsealed gaps: cracks in walls, unsealed skirting boards, or gaps around window frames allow cold air to rush in and warm air to escape.
• Inadequate insulation: heat bleeds rapidly through uninsulated loft spaces, exterior walls, and cold floors.

Complex heating controls

Modern heating systems and new energy-efficiency measures may take slightly longer to understand. When controls aren't set correctly, systems run inefficiently, wasting energy without adequately heating the living space.

Myths and misconceptions about heating your home

Misunderstandings about how heating systems work can lead to higher bills without warming your home.

• Myth: Cranking up the thermostat heats the house faster.
  The Reality: turning your thermostat to maximum doesn't heat your radiators faster; it simply keeps the system running longer, overheating the home and driving up energy costs.
• Myth: You need to heat every room all the time.
  The Reality: thermostatic radiator valves allow you to turn off or lower heating in unused rooms, focusing heat where you actually spend your time.
• Myth: Thermostat placement doesn't matter.
  The Reality: if a thermostat is placed too close to a heat source (or right next to the boiler), it will register the target temperature prematurely and shut the system down before the rest of the house warms up. Thermostats should be located in a central, cooler area like a hallway.

Simple, low-cost practical steps to keep warm

You don’t always need significant upgrades to make a noticeable difference in your home's temperature.

• Master your curtains: open curtains on sunny winter days to let natural solar heat in, and close them as soon as dusk falls to trap the warmth inside.
• Reflect radiator heat: placing foil heat reflectors behind radiators on external walls prevents heat from escaping through the brickwork and bounces it back into the room.
• Draught excluders: simple draught excluders under doors and near draughty entryways keep cold air at bay.
• Upgrade your loft insulation: up to a quarter of heat escapes through the roof. While older standards recommended 100mm of loft insulation, modern guidance recommends 270mm to 300mm to properly seal in heat.
• Spotting a cold roof: during frost or snow, a roof devoid of ice (or one covered in perching birds) is a clear sign that heat is escaping through an uninsulated loft.

How Cosy Homes in Lancashire can help

Cosy Homes in Lancashire offers council-backed support, expert guidance, and practical home improvements across the county.

Free Resources & Energy Advice

• The Lancashire Little Book of Warm: available in libraries across Lancashire and handed out at community events, this guide offers quick, accessible tips on saving energy and staying warm.
• Guides and resources: read our range of energy saving help and advice articles, containing information to help you keep warm and energy efficient at home.

The Little Van of Warm Service

For eligible Lancashire residents, including households with residents over 70, families with young children, or those on qualifying benefits, we operate the Little Van of Warm service.

Our team will visit your property to complete a quick energy audit and carry out free, practical upgrades, including:

• Fitting draught-proofing strips and door excluders
• Installing reflective radiator panels
• Replacing old light bulbs with energy-efficient LED bulbs
• Providing face-to-face energy advice over a warm cup of tea

Take the next step towards a warmer home

Whether you need major energy efficiency upgrades like loft or wall insulation, or small draught-proofing fixes around the house, support is available.

• Call the Cosy Homes Advice Team: ring our dedicated line to speak with an advisor.
• Apply online: complete the online application form. Our team will be in touch to confirm your eligibility for funding or other services such as the Little Van of Warm.