Cost to build a flat roof extension in Sefton

Extend your Sefton with an extension

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 Sefton?

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Flat roof extension cost in Sefton

A flat roof extension ranges from the cheapest of £20,024 (T&T Building Contractors based in L23) to the dearest of £26,400 (G R T building&roofing based in L13), 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 Sefton by posting a job with HaMuch. We'll send it to extension builders in Sefton.

Estimates for build a flat roof extension near Sefton

"Flat roof extension" - FORMBY

	Job	Estimate
	Cost to underpin a house	£17,141
	Build a two storey extension	£87,462
	Cost to build a timber frame extension	£25,641
	Cost to build a swimming pool	£80,641
	Cost to build a single storey extension	£47,826
	Cost to build a side return extension	£37,464
	Cost to Install an RSJ	£1,841
	Build an outbuilding	£9,641
	Cost to build a mansard loft conversion	£51,641
	Cost of a loft conversion	£30,387
	Cost to build a kitchen extension	£41,641
	Build a hip to gable loft conversion	£41,641
	Build a granny annexe	£86,641
	Build a garden office	£9,641
	Cost of a garage conversion	£15,641
	Build a new garage	£18,141
	Cost to build a flat roof extension	£21,641
	Cost to build a dormer loft conversion	£41,641
	Lay a concrete foundation	£5,891
	Cost of a bungalow loft conversion	£28,641
	Basement conversion cost	£33,464

Business name	Build a flat roof extension cost
T&T Building Contractors, Liverpool , L23	£20,024
KOR BUILDING SERVICES, Crosby, L23	£21,480
BTC Bernstef Ltd, Crosby, L23	£21,528
PARKFIELD CONSTRUCTION LTD, Waterloo, L22	£21,448
Sbetts Building, Seaforth, L21	£21,448
Altea Property Repairs, Waterloo, Liverpool , L22	£21,600
OLIA CONSTRUCTION LTD, Formby, L37	£21,472
Jones Landscaping, Bootle, L30	£21,440
CJ Construction, Bootle, L20	£21,536
KM Building Services, Fazakerely, L9	£21,488
Bob the Builder, Bootle, L20	£21,536
Derek J Platt & Co, New Brighton, CH45	£21,528
Red Avex Ltd, Merseyside, L10	£21,568
John Scarisbrick, Ormskirk, L39	£21,280
KTS, Kirkdale, L5	£21,528
Robuild - Waterwise, New Brighton, CH45	£21,488
P & P Building Services, Liverpool, L11	£21,560
Accro Building Services, Merseyside, CH44	£21,568
S.L.P Property Maintenance, Wallasey, CH44	£21,464
CLJ Developments Ltd, Merseyside, L33	£21,536
Shopfit & Build Services Ltd, Wallasey, CH44	£21,480
J.M.C Building Services, Liverpool, L4	£21,536
PropertyPro, Merseyside, CH44	£21,568
DW Brickwork, Wirral, CH46	£21,528
G R T building&roofing, Liverpool, L13	£26,400

Location in UK	Hourly Rate	Daily Rate
Build A Flat Roof Extension near Sefton	£29	£187
Build A Flat Roof Extension near Crosby	£29	£190
Build A Flat Roof Extension near Formby	£20	£145
Build A Flat Roof Extension near Bootle	£29	£202
Build A Flat Roof Extension near Maghull	£28	£189
Build A Flat Roof Extension near Wallasey	£29	£203
Build A Flat Roof Extension near Kirkby	£29	£210
Build A Flat Roof Extension near Liverpool	£28	£199
Build A Flat Roof Extension near Ormskirk	£25	£179
Build A Flat Roof Extension near Birkenhead	£28	£200

Extend your Sefton with an extension

Flat roof extension cost in Sefton

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Build a flat roof extension cost in Sefton

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