Cost to build a flat roof extension in KT10

Flat roof extension cost in KT10

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 KT10?

A flat roof extension ranges from the cheapest of £21,600 (TELSON ROOFWISE LIMITED based in KT9) to the dearest of £22,112 (DITTON CONSTRUCTION LIMITED based in KT12), 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 KT10 by posting a job with HaMuch. We'll send it to extension builders in KT10.

Estimates for flat roof extension near KT10

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	£17,391
	Build a two storey extension	£87,837
	Build a timber frame extension	£25,891
	Install a swimming pool	£80,891
	Cost to build a single storey extension	£52,824
	Cost to build a side return extension	£40,276
	Install an RSJ	£2,091
	Build an outbuilding	£9,891
	Build a mansard loft conversion	£51,891
	Cost of a loft conversion	£32,730
	Build a kitchen extension	£41,891
	Build a hip to gable loft conversion	£41,891
	Build a granny annexe	£86,891
	Build a garden office	£9,891
	Convert a garage	£15,891
	Build a new garage	£18,391
	Build a flat roof extension	£21,891
	Build a dormer loft conversion	£41,891
	Lay a concrete foundation	£6,141
	Convert a bungalow loft	£28,891
	Basement conversion cost	£36,276

Business name	Flat roof extension cost
Henry Carson Homes, Surrey, KT10	£21,952
Ella Design Build, Surrey, KT10	£21,952
Curtis Conversions Ltd, Surrey, KT10	£21,960
ALTERNATE CONSTRUCTION LTD, Esher, KT10	£21,872
G.M Dowling & Son, Surrey, KT12	£21,952
O.D Roofing Services, 3 Gibson Close, Chessington, London, Sur, KT9	£21,856
Coopers of Surrey Ltd, Surrey, KT12	£21,856
OAK HOUSE BESPOKE BUILDERS, Chessington, KT9	£21,864
K Lineage, Surrey, KT22	£21,952
METROMEC BUILDING SERVICES LTD, Walton-on-Thames, KT12	£21,880
TELSON ROOFWISE LIMITED, Chessington Surrey, KT9	£21,600
H Vincent Roofing & New UPVC, Molesey Road, Walton, KT12	£21,872
DITTON CONSTRUCTION LIMITED, Walton on Thames, KT12	£22,112
Tricor Ltd, Surrey, KT8	£21,952
JH roofing specialist, London , KT12	£21,880
Pulton Properties, Walton-on-Thames, KT12	£21,896
FLUID CONSTRUCTION, Chessington, KT9	£21,864
V&Co., Surrey, KT6	£21,944
ExtendOut Project Management Services, West Molesey, Surrey, kt8	£21,856
Matstone Projects Limited, Greater London, kt6	£21,944
mardon, Surrey, kt9	£21,944
TIMBERED BUILDING SERVICES, Walton-on-Thames, KT12	£21,880
West Ewell flooring , Surrey , Kt9	£21,600
Burwood Construction, Surrey, KT12	£21,960
S T Builders, Walton-on-Thames, KT12	£21,880

Extend your KT10 with an extension

Flat roof extension cost in KT10

Estimates for common extension builder jobs in KT10;

Rates for other KT10 trades

Flat roof extension cost in KT10

Get extension builder rates instantly