Cost to build a flat roof extension in SE28

Flat roof extension cost in SE28

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 SE28?

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 SE28 by posting a job with HaMuch. We'll send it to extension builders in SE28.

Estimates for flat roof extension near SE28

How much does a flat roof extension cost?
Flat roof extension cost per m2
Factors affecting the cost of flat roof extensions
Advantages and disadvantages of flat roofs
Which is cheaper: a flat roof or pitched roof?
How long does a flat roof extension take?
Do you need planning permission for a flat roof extension?
How long does a flat roof last?
Can you walk on a flat roof extension?
What insulation do I need for a flat roof extension?

	Job	Estimate
	Underpinning a house	£17,390
	Build a two storey extension	£87,835
	Build a timber frame extension	£25,890
	Install a swimming pool	£80,890
	Cost to build a single storey extension	£52,805
	Cost to build a side return extension	£40,265
	Install an RSJ	£2,090
	Build an outbuilding	£9,890
	Build a mansard loft conversion	£51,890
	Cost of a loft conversion	£32,721
	Build a kitchen extension	£41,890
	Build a hip to gable loft conversion	£41,890
	Build a granny annexe	£86,890
	Build a garden office	£9,890
	Convert a garage	£15,890
	Build a new garage	£18,390
	Build a flat roof extension	£21,890
	Build a dormer loft conversion	£41,890
	Lay a concrete foundation	£6,140
	Convert a bungalow loft	£28,890
	Basement conversion cost	£36,265

Business name	Flat roof extension cost
Satau Construction Works Ltd, Thamesmead, SE28	£21,848
GHOOSE LTD, Greater London, se28	£21,928
Keane & Sons Paving, Thamesmead, SE28	£21,848
Great britton builders, London, SE28	£21,880
Liviu Toma, Abbey Wood, SE2	£21,848
K K BUILDER UK LTD, Abbey Wood, SE2	£21,848
S M G Building Contractors, London, SE18	£22,560
Dry Spell Builders, Woolwich, SE18	£21,856
C B BUILDING CONSTRUCTION, Belvedere, DA17	£21,848
PFM General Building Services Ltd, London, SE18	£21,920
Melner Construction, London, Greater London, e16	£21,840
Sterling Pillar, London, Greater London, SE18	£21,840
Builders Team, Unit 7, Kencot way, London, Greater London, DA18	£21,824
Kunshi Services UK Ltd, Barking, IG11	£21,848
JASPG Construction & Design, London, SE18	£21,936
A3 BUILDING SERVICES, Belvedere, DA17	£21,848
Amanda Frew T/A Home Improvements Plastering & Decorating, Woolwich, SE18	£21,960
GR MAINTENANCE LTD, Barking, IG11	£21,888
R H Multitrade, Belvedere, DA17	£21,848
Multi-Tech Homes Global Ltd, Bexleyheath, Kent, DA7	£21,832
OAKDENE BUILDING SERVICES, Belvedere, DA17	£21,848
RSM BUILDING CONTRACTORS, Barnehurst, DA7	£21,848
D & G Construction LTD, 118 Norman Road, Belvedere, Kent, DA17	£21,808
Thomas Welch & Sons, 32 Landstead Road, Plumstead, London, Lo, SE18	£21,832
Danni Building Services Ltd, Bexleyheath, DA7	£21,872

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Flat roof extension cost in SE28

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Flat roof extension cost in SE28

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