Cost to build a flat roof extension in Abbey Wood

Flat roof extension cost in Abbey Wood

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 Abbey Wood?

A flat roof extension ranges from the cheapest of £21,808 (D & G Construction LTD based in DA17) to the dearest of £22,560 (S M G Building Contractors based in SE18), 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 Abbey Wood by posting a job with HaMuch. We'll send it to extension builders in Abbey Wood.

Estimates for flat roof extension near Abbey Wood

How much does a flat roof extension cost?
Flat roof extension cost per m2
Factors affecting the cost of flat roof extensions
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What insulation do I need for a flat roof extension?

	Job	Estimate
	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	£52,837
	Cost to build a side return extension	£40,283
	Install an RSJ	£2,092
	Build an outbuilding	£9,892
	Build a mansard loft conversion	£51,892
	Cost of a loft conversion	£32,736
	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	£36,283

Business name	Flat roof extension cost
Liviu Toma, Abbey Wood, SE2	£21,848
K K BUILDER UK LTD, Abbey Wood, SE2	£21,848
C B BUILDING CONSTRUCTION, Belvedere, DA17	£21,848
Multi-Tech Homes Global Ltd, Bexleyheath, Kent, DA7	£21,832
RSM BUILDING CONTRACTORS, Barnehurst, DA7	£21,848
A3 BUILDING SERVICES, Belvedere, DA17	£21,848
R H Multitrade, Belvedere, DA17	£21,848
GHOOSE LTD, Greater London, se28	£21,928
Danni Building Services Ltd, Bexleyheath, DA7	£21,872
Builders Team, Unit 7, Kencot way, London, Greater London, DA18	£21,824
Satau Construction Works Ltd, Thamesmead, SE28	£21,848
OAKDENE BUILDING SERVICES, Belvedere, DA17	£21,848
S M G Building Contractors, London, SE18	£22,560
Keane & Sons Paving, Thamesmead, SE28	£21,848
PFM General Building Services Ltd, London, SE18	£21,920
NEW BUILD MAINTENANCE LTD, Belvedere, DA17	£21,848
Mormacgroup, Kent, DA7	£21,928
Great britton builders, London, SE28	£21,880
Liam Kinsella Ltd, Barnehurst, DA7	£21,848
Osborne Building, Welling, DA16	£21,848
Builder.Special, Welling, DA16	£21,848
D & G Construction LTD, 118 Norman Road, Belvedere, Kent, DA17	£21,808
Amanda Frew T/A Home Improvements Plastering & Decorating, Woolwich, SE18	£21,960
Thomas Welch & Sons, 32 Landstead Road, Plumstead, London, Lo, SE18	£21,832
Lover Build, Kent, DA16	£21,928

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Flat roof extension cost in Abbey Wood

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Flat roof extension cost in Abbey Wood

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