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High-specification rear and side extensions for Wimbledon's large Victorian and Edwardian detached homes. Conservation area planning expertise for SW19 properties.
Find a builder →Velux, dormer, and mansard loft conversions for Wimbledon's spacious detached and semi-detached homes. Premium finishes and structural work included.
Find a builder →Full house refurbishments and period property restorations across Wimbledon — high-specification kitchens, bathrooms, and internal remodelling.
Find a builder →Office refurbishments and commercial fit-outs across Wimbledon town centre and the SW19 and SW20 postcode areas.
Find a builder →RSJ steel beam installation, load-bearing wall removal, underpinning, and basement structure works for Wimbledon's large detached properties.
Find a builder →Basement and lower-ground-floor conversions are popular in Wimbledon's high-value market — additional living space without changing the property footprint.
Find a builder →| Job | Low estimate | High estimate |
|---|---|---|
| Single-storey rear extension | £25,000 | £50,000 |
| Double-storey extension | £45,000 | £90,000 |
| Loft conversion (Velux) | £20,000 | £35,000 |
| Loft conversion (dormer) | £35,000 | £65,000 |
| Full house refurbishment (3-bed) | £40,000 | £100,000 |
| Kitchen extension (open plan) | £30,000 | £60,000 |
| Garage conversion | £12,000 | £25,000 |
| Garden room / studio | £15,000 | £40,000 |
| Basement conversion | £40,000 | £80,000 |
| Party wall agreement | £700 | £2,000 |
| Load-bearing wall removal (RSJ) | £1,500 | £4,000 |
| New build (per m²) | £2,000 | £4,000 |
Prices are estimates for Wimbledon 2026. Conservation area and high-specification projects typically cost more. Always get multiple quotes.
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Wimbledon is one of South London's most affluent areas, and building projects here reflect that — high specification, premium finishes, and larger budgets than much of the surrounding borough. The housing stock is dominated by large Victorian and Edwardian detached homes with substantial plots, particularly in the Wimbledon Village area, Home Park Road, and the streets around Wimbledon Common. These properties are ideally suited to high-value full refurbishments, basement conversions, and substantial rear extensions with glazed kitchen-diners. Wimbledon Village itself is a designated conservation area, meaning full planning permission is required for most works in the immediate village vicinity.
Basement conversions are strongly in demand across Wimbledon, where adding below-ground space — a bedroom, cinema room, or pool — avoids disturbing the external appearance of a valued property. The strong demand for these projects means builders in SW19 need specialist experience in waterproofing, tanking, and structural underpinning. For any project in Wimbledon, always engage a RIBA-registered architect familiar with the borough of Merton's planning policies alongside your builder — it streamlines planning applications and protects the investment in a high-value area.
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Covering SW19 · SW20 · KT3 · SW17 · SW18