If your home was built before the 1920s, it’s likely to have solid walls, which means there’s no cavity space to fill with traditional cavity wall insulation. However, you can still improve your home’s energy efficiency by choosing either internal or external wall insulation

Internal wall insulation reduces the room size slightly because the insulation typically adds around 100mm in thickness. Installing internal insulation involves removing and then refitting elements like skirting boards, door frames, electrical outlets, and other fittings, so the process can be somewhat disruptive. The insulation is finished with a smooth plaster skim, meaning you will need to redecorate afterward. It’s important to address any existing damp issues before installation, as these must be resolved to ensure the insulation performs effectively. All internal wall insulation installations come with a 25-year insurance-backed guarantee and are registered with Trustmark for your peace of mind.