Keston two storey extensions from £86,800

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Cost of a two storey extension in Keston

A two storey extension is a great way to add extra space to your home, adding value to your property. But how much does it cost to build a double storey extension in Keston?

Costs range from £86,800 (Bespoke Builders Beckenham based in BR3) to £87,904 (Mardle Developments Ltd based in BR2), but these are just estimates. The best way to compare costs is to get real quotes from real builders.

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Estimates for two storey extension near Keston

Estimates for common extension builder jobs in Keston;

JobEstimate
Underpinning a house£17,329
Build a two storey extension£87,743
Build a timber frame extension£25,829
Install a swimming pool£80,829
Cost to build a single storey extension£51,576
Cost to build a side return extension£39,574
Install an RSJ£2,029
Build an outbuilding£9,829
Build a mansard loft conversion£51,829
Cost of a loft conversion£32,145
Build a kitchen extension£41,829
Build a hip to gable loft conversion£41,829
Build a granny annexe£86,829
Build a garden office£9,829
Convert a garage£15,829
Build a new garage£18,329
Build a flat roof extension£21,829
Build a dormer loft conversion£41,829
Lay a concrete foundation£6,079
Convert a bungalow loft£28,829
Basement conversion cost£35,574
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Two storey extension cost in Keston
Estimate Two storey extension cost in Keston based on hourly/daily rate (excluding VAT or callout charges)
Business name Two storey extension cost
Mardle Developments Ltd, Bromley, BR2 £87,904
Heritage Roofing and Building Solutions Ltd, Bromley, BR1 £87,724
Pinder Building Contractors, Kingfisher House 21-23 Elmfield Road, Bromley, BR1 £87,748
EXCELL BUILDING, West Wickham, Kent, BR4 £87,748
PROBUILD (SE) LTD, Bromley, BR1 £87,784
A&A Roofing Solutions, Kent, BR2 £87,904
LEXA BUILDING SERVICES LTD, West Wickam, BR4 £87,784
London Quality Construction Group Limited, Bromley, BR2 £87,160
Stone & Brick limited, Bromley, BR1 £87,640
Inscope Management Services Ltd, 25 Holmcroft Way, Bromley, Greater London, BR2 £87,748
John Smith Builders, West Wickham, BR4 £87,736
Masonic Plumbing and Heating Ltd, Keston, BR2 £87,820
Gables & Co, West Wickham, BR4 £87,904
S G W, West wickham, BR4 £87,820
Nicholas James Construction, Bromley, Kent, BR1 £87,748
inscape projects ltd, Kent, BR2 £87,904
AAB Tile Installation & Repairs, Keston, BR2 £87,820
Saintflexs , Bromley, BR1 £87,832
SB Finishing, West Wickham, BR4 £87,904
MONUMENTAL CONSTRUCTION LIMITE, Keston, BR2 £87,784
QUANTIC BUILDING SERVICES LTD, West Wickam, BR4 £87,796
Bespoke Builders Beckenham, Beckenham, BR3 £86,800
Pineapple Interiors, Bromley, Greater London, BR1 £87,904
HouseForce (Beckenham) Ltd, Kent, BR3 £87,904
Hursley Developments Ltd, London, Kent, BR2 £87,760

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