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Greater London

Builders & build costs in London

Real 2026 prices for London homeowners — kitchen extensions, lofts, rear extensions and more. Regional weighting applied automatically (+15% vs. UK base).

Get a London estimate I'm a London builder

1,200+
Verified UK builders
18,000+
Homeowners served
< 90s
Avg. estimate time
4.8 / 5
Average rating

London project cost guides

Standard spec, ex-VAT, +15%

Kitchen extension

Typical kitchen extensions in London from

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Loft conversion

Typical loft conversions in London from

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Typical rear extensions in London from

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Bathroom renovation

Typical bathroom renovations in London from

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Typical garden rooms in London from

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Double-storey extension

Typical double-storey extensions in London from

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Side return extension

Typical side return extensions in London from

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Garage conversion

Typical garage conversions in London from

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Kitchen renovation

Typical kitchen renovations in London from

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Full house renovation

Typical full house renovations in London from

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Driveway installation

Typical driveway installations in London from

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Roof replacement

Typical roof replacements in London from

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Full house rewire

Typical full house rewires in London from

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Boiler replacement

Typical boiler replacements in London from

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Why London pricing is different

Local labour rates

London day-rates feed straight into every estimate — no flat UK averages.

London weighting

Materials, access and overheads adjusted +15% for Greater London.

Vetted local builders

Match with verified, insured trades serving London postcodes.

Other UK cities

Croydon Ealing Enfield Bromley Barnet Wandsworth Lambeth Lewisham Southwark Hackney Islington Camden Haringey Hounslow Richmond upon Thames Kingston upon Thames Merton Sutton Harrow Hillingdon Brent Newham Redbridge Havering Bexley Greenwich Tower Hamlets Waltham Forest Reading Slough Milton Keynes Oxford Brighton Hove Southampton Portsmouth Guildford Woking Basingstoke Winchester Canterbury Maidstone Tunbridge Wells Crawley Horsham Eastbourne Hastings Worthing Chichester High Wycombe Aylesbury Bracknell Newbury Farnham Epsom Redhill Sevenoaks Dartford Cambridge Norwich Ipswich Colchester Chelmsford Southend-on-Sea Basildon Luton St Albans Watford Hemel Hempstead Stevenage Hertford Bishop's Stortford Harlow Braintree Peterborough King's Lynn Great Yarmouth Bury St Edmunds Bristol Bath Swindon Gloucester Cheltenham Exeter Plymouth Torquay Bournemouth Poole Weymouth Dorchester Salisbury Taunton Yeovil Truro Newquay Penzance Birmingham Coventry Wolverhampton Dudley Walsall West Bromwich Solihull Stourbridge Stoke-on-Trent Stafford Telford Shrewsbury Worcester Hereford Redditch Warwick Leamington Spa Rugby Nuneaton Nottingham Leicester Derby Lincoln Northampton Kettering Corby Wellingborough Loughborough Mansfield Chesterfield Boston Grantham Newark-on-Trent Leeds Bradford Wakefield Huddersfield Halifax Dewsbury Sheffield Rotherham Barnsley Doncaster York Harrogate Scarborough Middlesbrough Hull Beverley Grimsby Scunthorpe Manchester Salford Stockport Oldham Rochdale Bury Bolton Wigan Trafford Tameside Altrincham Warrington Liverpool Wirral Birkenhead St Helens Southport Chester Crewe Macclesfield Preston Blackpool Blackburn Burnley Lancaster Carlisle Kendal Newcastle upon Tyne Gateshead Sunderland South Shields Durham Darlington Hartlepool Stockton-on-Tees Cardiff Swansea Newport Wrexham Bangor Aberystwyth Merthyr Tydfil Bridgend Edinburgh Glasgow Aberdeen Dundee Stirling Perth Inverness Paisley East Kilbride Livingston Ayr Kilmarnock Belfast Derry Lisburn Newtownabbey Bangor (NI)