Cost to build a mansard loft conversion in SL9

Build a mansard loft conversion in SL9 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 SL9
Build a Mansard loft conversion cost in SL9
Estimates for common extension builder jobs in SL9;

Mansard loft conversion cost in SL9

Mansard loft conversions range from the cheapest installation of £51,840 (Swan Windows & Son Limited based in WD3) to the dearest of around £52,400 (KATELL PROPERTY MAINTENANCE based in WD3).

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 SL9 by posting a job with HaMuch and we'll send it to extension builders in SL9.

Estimates for build a mansard loft conversion near SL9

Estimates for common extension builder jobs in SL9;

Rates for other SL9 trades

Build a Mansard loft conversion cost in SL9

Estimate Build a Mansard loft conversion cost in SL9 based on hourly/daily rate (excluding VAT or callout charges)
Business name	Build a Mansard loft conversion cost
CONSIDERATE BUILDING LIMITED, Gerrards Cross, SL9	£51,896
6:59 Ltd, Gerrards Cross, Buckinghamshire, SL9	£51,872
KPC BUILDING SERVICES LTD, Gerrards Cross, SL9	£51,872
Velonia Interiors Ltd, Buckinghamshire, SL9	£51,888
P & S Contractors, Buckinghamshire, SL9	£51,952
J MCNAMEE J & J BUILDERS, Chalfont St Giles, HP8	£51,896
T Sian T/A Design & Build Solu, Slough, SL3	£52,240
Be Illuminated, Buckinghamshire, HP9	£51,984
Ohanaa Ltd, Slough, SL2	£51,896
Ohanaa Bathrooms, Buckinghamshire, SL2	£51,952
Total Services, 26 Truesdale Drive, Harefield, Uxbridge,, UB9	£51,856
Asset Lofts, 30 High Street, Harefield, Middlesex, UB9	£51,848
HAMPTON CONSTRUCTION LTD, Farham Common, SL2	£51,880
VLM CONSTRUCTION LTD, Farham Common, SL2	£51,872
Kebbell Development Limited, Beaconsfield, Buckinghamshire, HP9	£51,864
JAYEM BUILDING SERVICES LTD, Beaconsfield, HP9	£51,904
Worktop Manny, Cambridgeshire, sl2	£51,960
KATELL PROPERTY MAINTENANCE, Rickmansworth, WD3	£52,400
Saltbox Design and Build, Hertfordshire, WD3	£51,976
TB Projects, Beaconsfield, Buckinghamshire, HP9	£51,864
Sheppard Construction Ltd, Denham, UB9	£51,896
ROBINSON AND EDGSON BUILDERS, Iver, SL0	£51,888
Sokhi Construction (UK) Ltd, Hillingdon, UB10	£51,896
CC Builders UK Development, Middlesex, UB8	£51,952
Swan Windows & Son Limited, 88a High St, Rickmansworth, Hertfordshir, WD3	£51,840

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Location in UK	Hourly Rate	Daily Rate
Build A Mansard Loft Conversion near Gerrards Cross	£37	£244
Build A Mansard Loft Conversion near Rickmansworth	£37	£241
Build A Mansard Loft Conversion near Hillingdon	£56	£240
Build A Mansard Loft Conversion near Slough	£36	£238
Build A Mansard Loft Conversion near Watford	£37	£239
Build A Mansard Loft Conversion near Hazlemere	£34	£235
Build A Mansard Loft Conversion near Chesham	£36	£237
Build A Mansard Loft Conversion near Windsor & Maidenhead	£36	£238
Build A Mansard Loft Conversion near Windsor	£36	£238
Build A Mansard Loft Conversion near Maidenhead	£36	£236

	Job	Estimate
	Cost to underpin a house	£17,434
	Build a two storey extension	£87,901
	Cost to build a timber frame extension	£25,934
	Cost to build a swimming pool	£80,934
	Cost to build a single storey extension	£53,675
	Cost to build a side return extension	£40,755
	Cost to Install an RSJ	£2,134
	Build an outbuilding	£9,934
	Cost to build a mansard loft conversion	£51,934
	Cost of a loft conversion	£33,129
	Cost to build a kitchen extension	£41,934
	Build a hip to gable loft conversion	£41,934
	Build a granny annexe	£86,934
	Build a garden office	£9,934
	Cost of a garage conversion	£15,934
	Build a new garage	£18,434
	Cost to build a flat roof extension	£21,934
	Cost to build a dormer loft conversion	£41,934
	Lay a concrete foundation	£6,184
	Cost of a bungalow loft conversion	£28,934
	Basement conversion cost	£36,755