Insulation Installers in New Malden

Yes — we cover New Malden and all surrounding Greater London postcodes (KT3). Most surveys can be booked within 3-5 working days, with a written quote sent within 24 hours of the visit.

New Malden is almost entirely 1930s semi-detached and Tudorbethan housing — the textbook UK property type for external wall insulation. Most homes have suspended timber floors and modest existing loft insulation that's well due a top-up. The right choice depends on your wall construction (solid vs cavity), property age, and whether external alterations are permitted. Our free survey identifies the most cost-effective option for your specific home.

Costs depend on property size, access and the measure: loft top-ups from around £400, floor insulation £2,500–£6,000, internal wall insulation from £100/m² and external wall insulation from £110/m². Every New Malden quote is free, fixed and itemised after a survey — no surprises.

Loft top-ups are usually a 1-day job. Floor insulation takes 2-4 days depending on access. Internal wall insulation runs to 1-2 weeks for a full house, and external wall insulation typically 2-4 weeks including render and decoration.