Insights, Guides & Expert Strategy

Home Insulation

Sep 10, 2026 • 2 min read

Why UK Mortgage Lenders Reject Spray Foam Insulation: The 2026 Compliance, RICS Standards & Safe Removal Guide

Over 80% of major UK mortgage lenders now flag spray foam insulation as a severe lending risk. Learn why banks refuse loans on properties with spray foam, the 2026 RICS inspection protocol, and why certified removal is the safest path to mortgage approval.

ProNest CX Technical Survey Team

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Home Insulation

Sep 10, 2026 • 2 min read

The Complete UK Loft Insulation Guide 2026: 270mm Standards, Costs & Building Regulations

The definitive 2026 guide to UK loft insulation: why 270mm mineral wool is the statutory standard under Part L Building Regulations, cost breakdowns, £350–£600 annual bill savings, and how to preserve floor storage with raised loft legs.

ProNest CX Retrofit Specialists

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Home Insulation

Aug 30, 2026 • 2 min read

UK Home Insulation & Heat Retention ROI 2026: Spray Foam, Cavity Wall & Loft Efficiency Guide

A comprehensive homeowner guide on slashing UK heating bills by £800+ annually using open-cell spray foam, loft upgrades, and cavity wall insulation.

ProNest Energy Specialist

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