Cost to build a flat roof extension in WD6

Flat roof extension cost in WD6

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 WD6?

A flat roof extension ranges from the cheapest of £21,848 (Ardent Home Improvements Ltd based in WD6) to the dearest of £22,800 (CLJ Building Ltd based in HA7), 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 WD6 by posting a job with HaMuch. We'll send it to extension builders in WD6.

Estimates for flat roof extension near WD6

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	£17,422
	Build a two storey extension	£87,883
	Build a timber frame extension	£25,922
	Install a swimming pool	£80,922
	Cost to build a single storey extension	£53,438
	Cost to build a side return extension	£40,622
	Install an RSJ	£2,122
	Build an outbuilding	£9,922
	Build a mansard loft conversion	£51,922
	Cost of a loft conversion	£33,018
	Build a kitchen extension	£41,922
	Build a hip to gable loft conversion	£41,922
	Build a granny annexe	£86,922
	Build a garden office	£9,922
	Convert a garage	£15,922
	Build a new garage	£18,422
	Build a flat roof extension	£21,922
	Build a dormer loft conversion	£41,922
	Lay a concrete foundation	£6,172
	Convert a bungalow loft	£28,922
	Basement conversion cost	£36,622

Business name	Flat roof extension cost
BBC, Hertfordshire, WD6	£21,960
Monarchy Building Services Ltd, Hertfordshire, WD6	£21,960
London Roofing Building Ltd, Borehamwood, WD6	£21,888
Ardent Home Improvements Ltd, 20 Carrington Avenue, Borehamwood, Hertfordshire, WD6	£21,848
Ardent Home Improvements Ltd, 20 Carrington Avenue, Borehamwood, Hertf, WD6	£21,848
Harris Calnan Construction, One Oak Court, Warwick Road, Borehamwood, Herefordshire, WD6	£21,848
Mandala Building Services, Hertfordshire, WD6	£21,960
Lukpol Building Services, Borehamwood, WD6	£21,848
LF Gjabri Contractions Ltd, Hartfordshire , WD6	£21,888
K&K Building Contractors Ltd, London, Hertfordshire, WD6	£21,848
mleriotconstruction, BOREHAMWOOD, WD6	£21,896
Deluxe Construction, A1 Golf Activity Centre, London, Hertfordshire, EN5	£21,856
V and T Homes Limited, London, Greater London, wd6	£21,848
ROMEO LEVITCHI GENERAL BUILDER, Edgware, HA8	£21,880
Aspirations Design, 29 Harrowes Meade, Edgware, London, Greater London, HA8	£21,848
RM GRAND BUILDERS LTD, Lynford Gardens Edgware, London, HA8	£21,848
CLJ Building Ltd, Stanmore, HA7	£22,800
Optma Builders ltd, 25 Endersby Road, Barnet, EN5	£21,848
CORTESE CONSTRUCTION, Greater London, NW7	£21,960
United Builders Exclusive, Pinner, ha7	£21,960
ARI Studio LTD, 7 Bridge Court, Craigmount, Radlett, Her, WD7	£21,856
JD Martin, POTTERS BAR, Hertfordshire, EN6	£21,848
Crest Construction and Interiors Ltd, Edgware, HA8	£21,888
Griggs Homes, 13 Beaumont gate, Radlett, wd7	£21,856
NW London Contracts Ltd, Greater London, NW7	£21,960

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Flat roof extension cost in WD6

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Flat roof extension cost in WD6

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