๐Ÿก Greener Home 6 min read Sep 29, 2026

Cheap Ways to Insulate Your Home

Big upgrades are expensive, but small insulation jobs can make rooms warmer and bills lower quickly.

Written by Leah Okafor

Heat escapes through roofs, walls, windows, and floors. Large projects like wall insulation make a big difference, but plenty of cheaper jobs help too.

Many of these are suitable for renters as well.

Top up the loft

If your loft has thin or patchy insulation, topping it up is one of the most cost-effective upgrades. Leave gaps over light fittings that need ventilation, and keep the loft hatch insulated and draught-sealed too.

Windows and doors

  • Thermal or lined curtains, closed at dusk
  • Secondary glazing film for single-glazed windows
  • Brush strips and letterbox covers
  • Keyhole covers and draught excluders

Floors and pipes

Rugs on bare floorboards reduce heat loss, and gaps between boards can be filled with flexible filler. Lag hot water pipes and fit a jacket to an older hot water cylinder.

Radiators

Radiator reflector panels behind radiators on external walls can reflect some heat back into the room. Do not cover radiators with furniture or long curtains.

This is general sustainability information. Recycling, composting, and disposal rules vary by municipality โ€” check local guidance. Cost and energy savings are estimates and depend on your home and usage.

Greenwisp

Recycling and composting rules differ between councils and cities โ€” check with your local waste service.

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