Yes, we can significantly upgrade roof insulation to meet or exceed current UK Building Regulations (Part L requires minimum 270mm loft insulation) without full replacement. For pitched roofs with accessible loft spaces, we can install or upgrade insulation between and over joists using materials like mineral wool, achieving U-values of 0.16 W/m²K or better. For rooms in the roof, we can add insulation between rafters using PIR boards or install insulated plasterboard internally. We also offer spray foam insulation, though care must be taken with roof ventilation. Proper roof insulation can reduce heating costs by 25-30%, crucial given UK energy prices. We ensure all work meets Building Regulations and includes proper ventilation to prevent condensation issues common in the UK climate.