Loft Conversion Renovation Cost in Slough 2026 UK pricing — VAT included
A typical loft conversion refurbishment in Slough in 2026 costs £43,750 – £93,750, with the median project landing around £68,750. Loft conversions remain the highest-ROI UK project, adding bedrooms and bathrooms within the existing footprint. Dormer and Mansard configurations carry the bigger price tags but unlock the most usable space.
£43,750
Trade-grade finishes, retain layout
£68,750
New layout, branded appliances, designer lighting
£93,750
Bespoke joinery, top-tier brands, structural changes
What drives the Slough price
- ▸Conversion type (Velux vs. dormer vs. mansard)
- ▸Adding an en-suite bathroom (+£8-15k)
- ▸Steel-beam structural work
- ▸Fire-rated staircase and Building Regs compliance
- ▸Insulation to current Part L standards
Slough sits in a higher-cost pocket of the UK renovation market — labour day rates here run roughly 125% of the UK average. Materials are largely consistent nationwide thanks to centralised builders\' merchants.
Related guides for Slough
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