HOW DOES UNDERFLOOR
INSULATION WORK?

SUSPENDED TIMBER FLOOR

If the ground floor is built on wooden joists with a gap underneath, then underfloor insulation is a straightforward job.

Older houses are built with a suspended floor using timber joists and floorboards over the top, and a small gap underneath.

If you have air bricks or ventilation bricks on the outside wall(s) of your house that are below floor level, you probably have a suspended timber floor.

SUSPENDED TIMBER FLOOR

If you have a suspended floor, then lifting the floorboards and insulating between the joists is comparatively simple. Our installers remove one board every metre to pin the insulation underneath.

Any floorboard removed are replaced with brand new floorboards.

If any damp problems are affecting the floor or any signs of rot or insect damage, you must resolve this issue before any underfloor insulation can take place.