Cost to build a flat roof extension in SE9

Flat roof extension cost in SE9

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 SE9?

A flat roof extension ranges from the cheapest of £20,080 (TDR Property Maintenance based in SE9) to the dearest of £22,000 (M C Technicians Ltd based in SE9), 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 SE9 by posting a job with HaMuch. We'll send it to extension builders in SE9.

Estimates for flat roof extension near SE9

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	£17,300
	Build a two storey extension	£87,700
	Build a timber frame extension	£25,800
	Install a swimming pool	£80,800
	Cost to build a single storey extension	£51,000
	Cost to build a side return extension	£39,250
	Install an RSJ	£2,000
	Build an outbuilding	£9,800
	Build a mansard loft conversion	£51,800
	Cost of a loft conversion	£31,875
	Build a kitchen extension	£41,800
	Build a hip to gable loft conversion	£41,800
	Build a granny annexe	£86,800
	Build a garden office	£9,800
	Convert a garage	£15,800
	Build a new garage	£18,300
	Build a flat roof extension	£21,800
	Build a dormer loft conversion	£41,800
	Lay a concrete foundation	£6,050
	Convert a bungalow loft	£28,800
	Basement conversion cost	£35,250

Business name	Flat roof extension cost
AMJAC CONSTRUCTION LTD, Eltham, SE9	£21,856
Neris Building Solutions Ltd., Greenwich, SE9	£21,936
Altash Building Services, Eltham, SE9	£21,856
Hartigans Construction, London, SE9	£21,944
TA LEE BUILDING SERVICES, Eltham, SE9	£21,856
Loft Living, London, SE9	£21,880
Empaconstruction Limited, Eltham, SE9	£21,856
Denkar Ltd, London, SE9	£21,880
PARAMOUNT CONSTRUCTION (UK), Eltham, SE9	£21,856
MAGNET CONSTRUCTION LIMITED, Eltham, SE9	£21,856
TDR Property Maintenance , London, SE9	£20,080
M C Technicians Ltd, London, SE9	£22,000
RLD Contractors Ltd, Eltham, SE9	£21,880
H2 Construction Ltd, London, SE9	£22,000
Jmc buildets, London, SE9	£21,600
FAIROAK CONSTRUCTION (UK) LTD, Eltham, SE9	£21,856
Therusso Limited, London, Kent, se9	£21,840
W D Treadgold Building Contractors, Eltham, SE9	£21,856
Lyuba George, Greater London, SE9	£21,936
Inspired Building Projects Limited, 12 Edgehill Road, Chislehurst, Kent, BR7	£21,824
Direct Roofing, Sidcup, DA15	£21,848
Self employer, london, DA15	£21,800
SE One Builders Ltd, Kent, BR7	£21,936
Fairview Construction Team Ltd., 27 Castlecombe Road, London, Greater London, SE9	£21,832
Fairview Construction Team Ltd., Greater London, SE9	£21,936

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Flat roof extension cost in SE9

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Flat roof extension cost in SE9

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