Cost to build a mansard loft conversion in TW17

Build a mansard loft conversion in TW17 from £51,840

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.

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Mansard loft conversion cost in TW17
Build a Mansard loft conversion cost in TW17
Estimates for common extension builder jobs in TW17;

Mansard loft conversion cost in TW17

Mansard loft conversions range from the cheapest installation of £51,840 (K & A Construction based in TW16) to the dearest of around £51,960 (Method Build Ltd based in TW16).

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 TW17 by posting a job with HaMuch and we'll send it to extension builders in TW17.

Estimates for build a mansard loft conversion near TW17

Estimates for common extension builder jobs in TW17;

Rates for other TW17 trades

Build a Mansard loft conversion cost in TW17

Estimate Build a Mansard loft conversion cost in TW17 based on hourly/daily rate (excluding VAT or callout charges)
Business name	Build a Mansard loft conversion cost
K & A Construction, Sunbury on Thames , TW16	£51,840
Method Build Ltd, Surrey, TW16	£51,960
Aspire Design & Build Ltd, Surrey, KT12	£51,960
Offa Construction Ltd, Wolton on Thames, Surrey, KT12	£51,864
TOTUS, Unit 5 Enterprise House, 44-46 Terrace Road, Walton on Thames, Surrey, kt12	£51,856
GJ Design and Build Ltd, Greater London, TW16	£51,960
GJ Design and Build Ltd, London, Greater London, TW16	£51,864
TATEBERRY DESIGN&CONSTRUCTION, Sunbury-on-Thames, TW16	£51,880
Proxile Solutions Limited, Ashford, TW15	£51,856
OATLANDS, Surrey, KT13	£51,960
Redridge Developers UK, Surrey, Kt13	£51,960
Mulberry Design & Build Ltd, Greater London, KT13	£51,960
AMD Building Services, Weybridge, KT13	£51,896
J H CONSTRUCTION, Sunbury-on-Thames, TW16	£51,880
Hanging Space, Weybridge, Surrey, KT13	£51,872
MARBANK CONSTRUCTION LTD, Weybridge, KT13	£51,880
MARBANK CONSTRUCTION LTD, Weybridge, KT13	£51,880
Surrey Hills Extend and Renovate Limited, Weybridge, KT13	£51,840
FLK Builders, French street, Sunbury-on-Thames, Greater London, TW16	£51,856
B D Roofing, Sunbury-on-Thames, TW16	£51,872
J PATERSON (BUILDERS) LTD, Sunbury-on-Thames, TW16	£51,872
S T Builders, Walton-on-Thames, KT12	£51,880
Burwood Construction, Surrey, KT12	£51,960
Aldridge and Sons Roofing Ltd, 107 Groveley Road, Sunbury-On-Thames, Mi, TW16	£51,856
Assent Construction, Ashford, Tw15	£51,960

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	Job	Estimate
	Cost to underpin a house	£17,397
	Build a two storey extension	£87,845
	Cost to build a timber frame extension	£25,897
	Cost to build a swimming pool	£80,897
	Cost to build a single storey extension	£52,939
	Cost to build a side return extension	£40,341
	Cost to Install an RSJ	£2,097
	Build an outbuilding	£9,897
	Cost to build a mansard loft conversion	£51,897
	Cost of a loft conversion	£32,784
	Cost to build a kitchen extension	£41,897
	Build a hip to gable loft conversion	£41,897
	Build a granny annexe	£86,897
	Build a garden office	£9,897
	Cost of a garage conversion	£15,897
	Build a new garage	£18,397
	Cost to build a flat roof extension	£21,897
	Cost to build a dormer loft conversion	£41,897
	Lay a concrete foundation	£6,147
	Cost of a bungalow loft conversion	£28,897
	Basement conversion cost	£36,341