Extend your Swanscombe with an extension

A flat roof extension is a great way to add extra space to your home without splashing out on the costs of a pitched roof extension. Often exempt from planning permission rules, you can build a flat roof extension up to 3 metres in height as long as it's not visible from a road. But how much do they cost in Swanscombe?

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Flat roof extension cost in Swanscombe

A flat roof extension is a great way to add extra space to your home without splashing out on the costs of a pitched roof extension. Often exempt from planning permission rules, you can build a flat roof extension up to 3 metres in height as long as it's not visible from a road. But how much do they cost in Swanscombe?

A flat roof extension ranges from the cheapest of £21,760 (AMD Construction and Renovation Ltd based in DA13) to the dearest of £22,000 (Hyde Building Ltd based in DA2), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes. 

Find out how much your flat roof extension will cost in Swanscombe by posting a job with HaMuch. We'll send it to extension builders in Swanscombe.

Estimates for build a flat roof extension near Swanscombe

Estimates for common extension builder jobs in Swanscombe;

JobEstimate
Cost to underpin a house£17,326
Build a two storey extension£87,739
Cost to build a timber frame extension£25,826
Cost to build a swimming pool£80,826
Cost to build a single storey extension£51,525
Cost to build a side return extension£39,545
Cost to Install an RSJ£2,026
Build an outbuilding£9,826
Cost to build a mansard loft conversion£51,826
Cost of a loft conversion£32,121
Cost to build a kitchen extension£41,826
Build a hip to gable loft conversion£41,826
Build a granny annexe£86,826
Build a garden office£9,826
Cost of a garage conversion£15,826
Build a new garage£18,326
Cost to build a flat roof extension£21,826
Cost to build a dormer loft conversion£41,826
Lay a concrete foundation£6,076
Cost of a bungalow loft conversion£28,826
Basement conversion cost£35,545
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Build a flat roof extension cost in Swanscombe
Estimate Build a flat roof extension cost in Swanscombe based on hourly/daily rate (excluding VAT or callout charges)
Business name Build a flat roof extension cost
HYDER CONSTRUCTION LTD, Northfleet, DA11 £21,824
JPRMS Ltd, Northfleet, DA11 £21,848
Warren Miller Building, Northfleet, DA11 £21,848
DP Construction, Greenhithe, DA9 £21,768
GLADHOUSE CONSTRUCTION, Northfleet, DA11 £21,808
FLEX CONSTRUCTION LIMITED, Reading, RG1 £21,808
ALLTYPE BUILDING CONTRACTORS L, Meopham, DA13 £21,816
Beautiful Kitchens, Bedrooms & Bathrooms, Kent, DA11 £21,888
Deen Construction & Renovations Ltd, Tilbury, Essex, RM18 £21,776
Deen Construction & Renovations Ltd, Essex, RM18 £21,896
Renewvate, Grays, Essex, RM17 £21,792
ForsBuild Construction Ltd, Dartford, DA2 £21,784
GDL CONSTRUCTION, Gravesend, DA12 £21,808
Brown Builders UK Ltd, Gravesend, Kent, DA12 £21,776
L A CONSTRUCTION LIMITED, Grays, RM20 £21,800
PALMERS BUILDERS LIMITED, Grays, RM17 £21,816
A Tutton Building Services Limited, Dartford, DA2 £21,864
Bungar & Co ltd, Kent, Da12 £21,896
CIA Construction Limited, Tilbury, RM18 £21,840
Ciad Building Services Ltd, Gravesend, DA12 £21,808
Hyde Building Ltd, Mile End Green, Dart, DA2 £22,000
Access Builders Direct LTD, 70, Grays, RM17 £21,776
The England Team, Chafford Hundred, RM16 £21,856
TPT CONSTRUCTION, Meopham, DA13 £21,800
AMD Construction and Renovation Ltd, 67 Lewis Road, Istead Rise, Gravesend, Kent, DA13 £21,760

Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Build A Flat Roof Extension near Northfleet£35£227
Build A Flat Roof Extension near Grays£36£226
Build A Flat Roof Extension near Chafford Hundred£36£227
Build A Flat Roof Extension near Gravesend£35£227
Build A Flat Roof Extension near Thurrock£36£227
Build A Flat Roof Extension near Dartford£45£238
Build A Flat Roof Extension near South Ockendon£51£242
Build A Flat Roof Extension near Bexley£36£232
Build A Flat Roof Extension near Stanford-le-Hope£35£222
Build A Flat Roof Extension near Rochester£34£220