Stop Draughts & Heat Loss with Underfloor Insulation
If you have a suspended timber floor, there is often a hidden gap beneath your floorboards that allows cold air to circulate. This can create uncomfortable draughts and make your home harder and more expensive to heat. In fact, up to 16% of heat can be lost through an uninsulated floor.

Underfloor Insulation for Comfort & Efficiency
Most suspended floors are made up of floorboards laid over timber joists, with an open void beneath. While some modern floor finishes include thin liners underneath, these are rarely airtight and do little to properly seal gaps around edges and joints.
Underfloor insulation addresses the issue at its source by insulating between the joists and reducing the movement of cold air from below. The result is a home that heats up faster, stays warmer for longer and feels noticeably more comfortable underfoot.
Importantly, insulation doesn’t “trap” heat in the summer, it works by slowing heat transfer. That means your home also stays cooler during warmer months, helping maintain a more stable indoor temperature all year round.
How Underfloor Insulation Is Installed
Underfloor insulation is a straightforward and effective retrofit solution for existing properties. In most cases, we gain access to the suspended floor void via an existing hatch. If one isn’t already in place, we can create a subtle access point, such as inside a cupboard or another concealed area.
Once inside the void, insulation is carefully fitted between the timber joists to create a continuous thermal barrier. Support netting is then installed beneath the insulation to hold it securely in place and prevent sagging over time. This method ensures long-term performance while maintaining airflow where required to protect the structure of the building.
The process is efficient, minimally disruptive and designed to deliver lasting results without major changes to your living space.
The Benefits of Underfloor Insulation
Installing underfloor insulation significantly improves the thermal efficiency of your home or office. By reducing heat loss through the floor, your property can maintain comfortable temperatures more consistently throughout the year, with less reliance on heating systems.
With improved efficiency comes lower energy bills. As your home retains heat more effectively, your heating system doesn’t need to work as hard or run as frequently. Over time, this reduction in energy usage can help offset the initial investment in insulation.
Underfloor insulation also helps prevent cold air from entering through floor gaps and cracks, creating a protective barrier between external temperatures and your internal living space. This reduces draughts and improves overall comfort, particularly during colder months.
Finally, using less energy contributes to a more sustainable future. By lowering your gas and electricity consumption, you reduce demand on natural resources and cut your carbon footprint – a small but meaningful step towards protecting the environment.














