Verified Loft Conversion Specialists in Portsmouth

Loft conversion builders in Portsmouth quote: Velux conversion £20,000 to£35,000, dormer conversion £35,000 to£60,000, hip-to-gable £45,000 to£65,000, mansard £50,000 to£70,000. Prices include structural work, insulation, staircase, and first fix. MyApproved contractors provide full planning and building regulations support as part of the project - not an add-on.

Loft conversions in Portsmouth require building regulations approval (not just planning permission) covering: structural calculations, fire safety (30-minute fire doors, mains-wired smoke alarms), insulation (minimum U-value 0.18 W/m²K), and staircase specification. MyApproved loft conversion contractors are verified to submit building regulations applications on your behalf. Every contractor passes: identity checked, public liability cover of £2m confirmed and monitored, and structural engineering evidence.