Loft Insulation
Around 25% of the heat in an under-insulated home escapes straight through the roof. Upgrading to the current 270mm Building Regulations standard is one of the fastest, cheapest ways to cut that loss - and it's the single best-value insulation measure most homes can install.
What is Loft Insulation?
Loft insulation is a thick layer of mineral wool laid between and over the ceiling joists of your home, stopping warm air from escaping into the roof space. Current UK Building Regulations (Part L) require a minimum depth of 270mm for new installations - roughly 11 inches. Most older homes are installed to the old 100mm or 200mm standards and leak heat continuously.
Why 270mm Matters (Building Regs Part L)
The Building Regulations set 270mm as the minimum depth of mineral wool needed to reach a U-value of around 0.16 W/m²K - the modern standard for thermal performance. Insulating below this depth leaves measurable heat loss on the table. Our installers top-up existing insulation or strip and re-lay to the full 270mm depth, using British-made mineral wool with A+ fire ratings and a 40-year guarantee.
The Benefits
Cut Up to 25% Heat Loss
Going from an uninsulated loft to the full 270mm standard can save the typical detached home £355 a year on energy bills (Energy Saving Trust figures).
Building Regs Compliant
We install to Building Regulations Part L - 270mm minimum depth - so your home's EPC rating and resale value both benefit.
Fast, Low-Disruption Install
Most lofts are completed in half a day. We protect your belongings, clear the existing material if needed, and leave a clean walkway to your tank and cold-water services.
Why Choose JMS Eco?
JMS Eco is a TrustMark registered, PAS 2030 compliant loft insulation installer. Every job is surveyed for ventilation, damp and condensation risk before we start - because insulation done wrong creates more problems than it solves.
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