Cost to build a flat roof extension in W4 5p

Flat roof extension cost in W4 5p

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 W4 5p?

A flat roof extension ranges from the cheapest of £21,832 (Starling Constructions Ltd based in W4) to the dearest of £22,800 (Adrian Design Ltd based in W4), 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 W4 5p by posting a job with HaMuch. We'll send it to extension builders in W4 5p.

Estimates for flat roof extension near W4 5p

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	£17,435
	Build a two storey extension	£87,903
	Build a timber frame extension	£25,935
	Install a swimming pool	£80,935
	Cost to build a single storey extension	£53,701
	Cost to build a side return extension	£40,769
	Install an RSJ	£2,135
	Build an outbuilding	£9,935
	Build a mansard loft conversion	£51,935
	Cost of a loft conversion	£33,141
	Build a kitchen extension	£41,935
	Build a hip to gable loft conversion	£41,935
	Build a granny annexe	£86,935
	Build a garden office	£9,935
	Convert a garage	£15,935
	Build a new garage	£18,435
	Build a flat roof extension	£21,935
	Build a dormer loft conversion	£41,935
	Lay a concrete foundation	£6,185
	Convert a bungalow loft	£28,935
	Basement conversion cost	£36,769

Business name	Flat roof extension cost
Hamilton King, Greater London, W4	£21,840
SW CHELSEA CONSTRUCTION, Greater London, W4	£21,944
P and J Roofing & Building Contractors Ltd, 35 Colville Road, London, Greater London, W3	£21,944
Zulufish, 26 Arlington Gardens, Chiswick, London, Greater London, W4	£21,840
C H Westend, 380 Bollo Lane, London, Greater London, W3	£21,944
MoreSpace, Ealing, London, Greater London, W5	£21,840
PJS Building & Maintenance Ltd, 14 Heathfield Road, London, Greater London, W3	£21,840
R Burton & Sons Builders, Chiswick, W4	£21,864
Adrian Design Ltd, Chiswick , W4	£22,800
Magill Travill Construction, Chiswick, W4	£21,888
Raremade, Greater London, W3	£21,944
Pipedreams Interiors Ltd, 33c Saville Road, Chiswick, London, Greater London, W4	£21,944
Arrow Design LTD, London, Londonderry, W4	£21,840
Starling Constructions Ltd, London, W4	£21,832
Kuta Design and Build Limited, Greater London, W4	£21,944
SxS Design & Build, Greater London, W4	£21,944
Elite London Construction, 9 Fisher's Lane, Chiswick, London, Greater London, W4	£21,840
Good Design and Build, London, Greater London, W4	£21,840
Fox Construct Ltd, London, W3	£21,944
Nomex Design, Greater London, w3	£21,944
ASSEGAI DESIGN&BUILD, Chiswick, W4	£21,864
Ferdas Design & Build Ltd, London, W3	£21,944
The Diamond Property Service Ltd, London, W3	£21,920
Guardian Developments, Londonderry, W4	£21,944
RAID Architecture, Greater London, TW8	£21,944

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Flat roof extension cost in W4 5p

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Flat roof extension cost in W4 5p

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