Builder in Hanwell, W7 — Extensions, Loft Conversions, and Full Renovations

House Extensions in Hanwell

We build rear extensions, side return extensions, and kitchen extensions on W7 properties, designed to complement the period character of Hanwell's Victorian and Edwardian housing. A single-storey rear extension in Hanwell costs approximately £40,000 to £85,000 in 2026, reflecting the higher specification typically applied in a market where properties regularly exceed £700,000. We manage all Ealing planning applications and Building Regulations.

Loft Conversions in Hanwell

We carry out hip-to-gable, L-shaped dormer, dormer, and Velux loft conversions across Hanwell's varied roof types. Hip-to-gable conversion: £47,000 to £78,000. L-shaped dormer: £48,000 to £85,000. Velux on gable-roof properties: £25,000 to £45,000. We confirm the correct and most value-adding conversion type for your specific W7 property at the free survey — the right call between a hip-to-gable and a dormer alone can make a £10,000 difference in project cost.

Full House Renovation in Hanwell

Complete renovation programmes for Hanwell's Victorian, Edwardian, and interwar housing. Full 3-bedroom Hanwell house renovation: £70,000 to £180,000 depending on scope and starting condition. We specify lime plaster on pre-1919 W7 properties and engage a structural engineer on all wall removal and structural alteration work. JCT contract on every project.

Kitchen Renovation in Hanwell

Kitchen refits and open plan kitchen renovations throughout W7. Many Hanwell Edwardian houses have a rear room separating the kitchen from the garden — removing this wall to create an open plan kitchen diner is one of the most transformative and value-adding single projects available on the W7 Edwardian stock. London mid-range kitchen refit: £10,000 to £20,000. Full structural open plan renovation: £40,000 to £120,000.

Bathroom Renovation in Hanwell

Family bathrooms, en-suites, wet rooms, and cloakrooms throughout W7. Hanwell Edwardian houses often have a first-floor layout where a large original bathroom can be reconfigured to create both a main bathroom and a master en-suite without extending the building. London mid-range bathroom renovation: £8,000 to £15,000.

Basement Conversions in Hanwell

Hanwell's larger Victorian and Edwardian properties occasionally have an existing cellar or below-ground space. Cellar conversion in London: £45,000 to £95,000 for a standard fit-out to Grade 3 habitable standard. We carry out a free feasibility assessment for any Hanwell basement enquiry.

Electrical Services in Hanwell

NICEIC-certified EICR inspections, full rewires (3-bed London: £4,500 to £9,000), consumer unit upgrades (£450 to £950), and EV charger installation (£800 to £1,500) throughout W7. Pre-1966 Hanwell Victorian properties occasionally retain rubber-insulated wiring — we flag this at EICR.

Plumbing and Heating in Hanwell

Gas Safe registered boiler installation, central heating, and bathroom plumbing in Hanwell. Combi boiler supply and installation: £3,200 to £5,500. Benchmark Commissioning Checklist completed on every installation.

Plastering and Rendering in Hanwell

Internal lime plastering on Hanwell's pre-1919 solid-wall Victorian and Edwardian properties, and breathable render on solid-wall facades. Gypsum skim and full re-plaster on the 1930s cavity-wall stock. We specify the correct system for the substrate at the survey — the difference between a correct and incorrect specification on a Hanwell Victorian terrace is measured in thousands of pounds of damp remediation within five years.

Roofing in Hanwell

Flat roof replacement on W7 extensions, pitched roof tile repair, ridge re-bedding, lead flashing at chimney stacks (common on Hanwell's Victorian and Edwardian properties), and guttering replacement throughout W7.