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Rear and side extensions for Ealing's spacious 1930s semis. Large gardens across W5 and W13 are ideal for rear extensions and kitchen-diners.
Find a builder →Velux and dormer loft conversions across Ealing — the semi-detached housing stock across W5 and W13 is well suited to hip-to-gable and rear dormer conversions.
Find a builder →Full house refurbishments and internal remodelling across Ealing, Acton, and Hanwell — from period feature restoration to modern open-plan upgrades.
Find a builder →Office refurbishments, shopfits, and commercial fit-outs across Ealing Broadway, Acton, and the surrounding W and UB postcode areas.
Find a builder →RSJ steel beam installation, load-bearing wall removal, and party wall works across Ealing's 1930s and post-war housing.
Find a builder →Garden rooms, studios, and annexes are highly popular in Ealing's larger plots. New build residential development across the borough.
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 Ealing 2026. Always get at least three quotes before committing to any work.
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Ealing is one of West London's most popular outer boroughs for extension and conversion work. The dominant housing type — the 1930s semi-detached house — has generous side passages, rear gardens, and hip roofs that are ideal for a range of building projects. Rear and side extensions are extremely common, and the large plot sizes mean double-storey side extensions are feasible on many Ealing properties. Many homes in W5 and W13 sit outside conservation areas, meaning full Permitted Development rights apply for standard extensions and loft conversions.
The Crossrail (Elizabeth line) effect has made property in Ealing Broadway and surrounding areas significantly more valuable, and as a result the investment case for extending — rather than moving — has never been stronger. Garden rooms are also growing rapidly in popularity across the borough, driven by the shift to hybrid working and the availability of large rear gardens. Builders across W5, W13, UB1, and UB6 cover a mix of residential extensions, loft conversions, commercial fit-outs, and new-build residential projects across this sizeable and varied outer-London borough.
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Covering W5 · W13 · UB1 · UB6 · W3 · UB2