Extension Renovation Cost in Slough 2026 UK pricing — VAT included
A typical extension refurbishment in Slough in 2026 costs £37,500 – £112,500, with the median project landing around £75,000. Single-storey rear extensions in the UK in 2026 typically run £2,500–£3,500 per square metre, before kitchen fit-out. Bifold doors, structural steels and roof-light specifications all push the upper end.
£37,500
Trade-grade finishes, retain layout
£75,000
New layout, branded appliances, designer lighting
£112,500
Bespoke joinery, top-tier brands, structural changes
What drives the Slough price
- ▸Foundation type (trench vs. piled)
- ▸Bifold or sliding doors (Schüco vs. own-brand)
- ▸Roof lights (Velux vs. flush-glazed lanterns)
- ▸Steel-beam openings
- ▸Underfloor heating throughout
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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