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Flat roof extension cost in Keswick

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 Keswick?

A flat roof extension ranges from the cheapest of £21,200 (Ian Groves based in CA12) to the dearest of £21,600 (STAN MARTIN T/A based in CA26), 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 Keswick by posting a job with HaMuch. We'll send it to extension builders in Keswick.

Estimates for flat roof extension near Keswick

Estimates for common extension builder jobs in Keswick;

JobEstimate
Underpinning a house£16,855
Build a two storey extension£87,032
Build a timber frame extension£25,355
Install a swimming pool£80,355
Cost to build a single storey extension£42,093
Cost to build a side return extension£34,240
Install an RSJ£1,555
Build an outbuilding£9,355
Build a mansard loft conversion£51,355
Cost of a loft conversion£27,700
Build a kitchen extension£41,355
Build a hip to gable loft conversion£41,355
Build a granny annexe£86,355
Build a garden office£9,355
Convert a garage£15,355
Build a new garage£17,855
Build a flat roof extension£21,355
Build a dormer loft conversion£41,355
Lay a concrete foundation£5,605
Convert a bungalow loft£28,355
Basement conversion cost£30,240
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Flat roof extension cost in Keswick
Estimate Flat roof extension cost in Keswick based on hourly/daily rate (excluding VAT or callout charges)
Business name Flat roof extension cost
Ian Groves, Penrith , CA12 £21,200
M & K BUILDERS KESWICK LIMITED, Keswick, CA12 £21,312
STAN MARTIN T/A, Frizington, CA26 £21,600
PAUL LITTLE BUILDING MAINT, Wigton, CA7 £21,224
ASKEW CONSTRUCTION, Wetheral, CA4 £21,200
William king Construction, Jacktrees Road, Cleator moor, Cumbria CA25 5B, CA25 £21,384
J R S BUILDING, Windermere, LA23 £21,512
Sc brickwork, Cumbria, CA22 £21,448
M c trading, Cumbria, Ca2 £21,312

Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Flat Roof Extension near Whitehaven£18£185
Flat Roof Extension near Carlisle£21£175
Flat Roof Extension near Kendal£24£200