Expert cavity wall insulation injection reduces heat loss by up to 35%, cutting energy bills substantially. We install mineral wool, polystyrene beads, or foam insulation through small external holes, with professional assessment ensuring suitability and guaranteed long-term performance.
Cavity walls account for approximately 35% of heat loss in an uninsulated home. Installing cavity wall insulation is one of the quickest and most effective ways to reduce energy bills, improve comfort, and decrease your environmental impact. Our professional installation service fills the cavity gap with high-performance insulation materials, creating a thermal barrier that keeps heat in during winter and out during summer.
We offer several proven cavity insulation materials depending on your property type, cavity width, and exposure conditions. Mineral wool (blown fibre) is versatile and suitable for most properties. Polystyrene beads with adhesive bonding provide excellent performance and are ideal for wider cavities. Polyurethane foam insulation offers maximum thermal efficiency for narrower cavities. Our surveyors assess your specific requirements and recommend the optimal solution with honest advice about suitability.
Not all properties are suitable for cavity wall insulation. We conduct thorough assessments checking cavity width (minimum 50mm required), wall construction type, exposure to driving rain, existing dampness issues, and cavity condition. Properties in severe exposure zones or with certain construction defects may not be suitable, and we will advise alternative solutions. All suitable installations come with 25-year guarantees backed by independent insurance schemes, providing complete peace of mind and adding value when selling your property.