Build a mansard loft conversion in SW20 from £51,600

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Mansard loft conversion cost in SW20

Mansard loft conversions are ideal if you want to maximise the space in your home. Extending your roof out into a flat roof with an almost vertical wall, they almost always require planning permission but can add significant value to your home.

Mansard loft conversions range from the cheapest installation of £51,600 (Early Druid Ltd based in KT3) to the dearest of around £52,240 (Silverain Limited based in SW19).

While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.

Get quotes to install a mansard loft conversion in SW20 by posting a job with HaMuch and we'll send it to extension builders in SW20. 

Estimates for mansard loft conversion near SW20

Estimates for common extension builder jobs in SW20;

JobEstimate
Underpinning a house£17,392
Build a two storey extension£87,838
Build a timber frame extension£25,892
Install a swimming pool£80,892
Cost to build a single storey extension£52,843
Cost to build a side return extension£40,287
Install an RSJ£2,092
Build an outbuilding£9,892
Build a mansard loft conversion£51,892
Cost of a loft conversion£32,739
Build a kitchen extension£41,892
Build a hip to gable loft conversion£41,892
Build a granny annexe£86,892
Build a garden office£9,892
Convert a garage£15,892
Build a new garage£18,392
Build a flat roof extension£21,892
Build a dormer loft conversion£41,892
Lay a concrete foundation£6,142
Convert a bungalow loft£28,892
Basement conversion cost£36,287
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Rates for other SW20 trades

Appliance Repair Specialist
Bathroom Fitter
Builder
Carpenter and Joiner
Cleaner
Conservatory Specialist
Door Fitter
Drain Specialist
Driveway Specialist
Electrician
Extension Builder
Fencer
Fire and Security Specialist
Flooring Specialist
Gardener
Handyman
Heating Engineer
Kitchen Fitter
Landscaper
Painter and Decorator
Patio and Path Specialist
Plasterer
Plumber
Removals and Storage
Roofer
Tiler
Window Fitter
Mansard loft conversion cost in SW20
Estimate Mansard loft conversion cost in SW20 based on hourly/daily rate (excluding VAT or callout charges)
Business name Mansard loft conversion cost
BuildExtensions, 604 Kingston Road, Raynes Park, SW20 £51,840
Kisiel Group, London, Greater London, SW20 £51,840
SURREY HOME & GARDEN SERVICES, London, SW20 £51,960
Arkadia Properties Ltd, Greater London, SW20 £51,944
RECOM Construction, Greater London, SW20 £51,944
RELM Interiors Ltd, 50 Southdown Road, London, Greater London, SW20 £51,944
My Design Needs / Modernation Ltd., Greater London, SW20 £51,936
SOUTH SIDE BUILDERS, Merton, SW20 £51,856
Ash House Investment Ltd, London, Surrey, kt3 £51,832
Racsel Building Services Ltd, New Malden, KT3 £51,856
Racsel Building Services Ltd, New Malden, KT3 £51,856
Early Druid Ltd, New Malden, KT3 £51,600
EcoHomeLondonLtd, Greater London, SM4 £51,936
Flanagan Construction Ltd, Morden, SM4 £52,000
Design Manage Build, Worple road mews, Wimbledon, London, Sw19 £51,840
PT DECORATIONS LTD, Morden, SM4 £51,888
Silverain Limited, London , SW19 £52,240
Galaxy Extend, 17A, New Malden, Errol Gardens, London, Greater London, KT3 £51,832
DesignBox Architecture Limited, London, SW19 £51,880
XUE BUILDERS, New Malden, KT3 £51,856
Firman Reece Ltd, 11 Alexandra Road, London, Greater London, SW19 £51,840
Bagnall Brickwork, Surrey, SM4 £51,936
BLU STAR BUILD LLP, New Malden, KT3 £51,856
WILDE BUILDING CONTRACTORS LTD, New Malden, KT3 £51,856
Rimma Monk ID, Greater London, SW20 £51,936

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