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Flat roof extension cost in CB23

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 CB23?

A flat roof extension ranges from the cheapest of £21,760 (James Burch Roofing based in CB23) to the dearest of £23,200 (ALLIED BUILDING ASSOCIATES LTD based in CB22), 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 CB23 by posting a job with HaMuch. We'll send it to extension builders in CB23.

Estimates for flat roof extension near CB23

Estimates for common extension builder jobs in CB23;

JobEstimate
Underpinning a house£17,399
Build a two storey extension£87,848
Build a timber frame extension£25,899
Install a swimming pool£80,899
Cost to build a single storey extension£52,978
Cost to build a side return extension£40,362
Install an RSJ£2,099
Build an outbuilding£9,899
Build a mansard loft conversion£51,899
Cost of a loft conversion£32,802
Build a kitchen extension£41,899
Build a hip to gable loft conversion£41,899
Build a granny annexe£86,899
Build a garden office£9,899
Convert a garage£15,899
Build a new garage£18,399
Build a flat roof extension£21,899
Build a dormer loft conversion£41,899
Lay a concrete foundation£6,149
Convert a bungalow loft£28,899
Basement conversion cost£36,362
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Rates for other CB23 trades

Appliance Repair Specialist
Bathroom Fitter
Builder
Carpenter and Joiner
Cleaner
Conservatory Specialist
Door Fitter
Drain Specialist
Driveway Specialist
Electrician
Extension Builder
Fencer
Fire and Security Specialist
Flooring Specialist
Gardener
Handyman
Heating Engineer
Kitchen Fitter
Landscaper
Painter and Decorator
Patio and Path Specialist
Plasterer
Plumber
Removals and Storage
Roofer
Tiler
Window Fitter
Flat roof extension cost in CB23
Estimate Flat roof extension cost in CB23 based on hourly/daily rate (excluding VAT or callout charges)
Business name Flat roof extension cost
James Burch Roofing, Great Cambourne, Cam, CB23 £21,760
IJC Building Services Ltd, Highfields, CB23 £21,848
Baufritz (UK) Limited, Baufritz UK, Cambridge, Cambridgeshire, CB3 £21,848
SturdyBuild, 34 Thornton Close, Cambridge, Cambridgeshire, CB3 £21,848
WESTWICK BUILDERS LIMITED, Over, CB24 £21,832
Louise Swarbrick Design, Cambridgeshire, CB3 £21,928
M OLIVER BUILDING, Royston, SG8 £21,816
Fenlake Construction, Cambridgeshire, CB23 £21,936
Emerald Carpentry & Building Services Ltd, Cambridge, CB24 £21,920
CROWNBUILD, Cambrigde Central South, CB1 £21,840
Beaumont Construction, Cambridge, Cambridge, Cambridgeshire, CB1 £21,856
SK Builders and Decorators Ltd , Cambridge, CB4 £21,760
CREATIVE BUILDING & LANDSCAPE, Over, CB24 £21,832
Coulson Building Group, William James House, Cowley Road, Cambri, CB4 £21,856
SP-Building Services Ltd, Cambridge, CB5 £21,856
BOB BLACK CONSTRUCTION LTD, St Ives, Cambridgeshire, PE27 £21,848
Bob Black Construction Limited, St Ives, Cambridgeshire, PE27 £21,848
TSN Consultants Ltd, Cambridge, CB1 £21,864
D Stebbings, Cambrigde Central South, CB1 £21,832
ECO DESIGN & BUILD (UK) LTD, Royston, SG8 £21,816
Silverwood Construction (Cambridge) Ltd, Bluntisham, PE28 £21,880
ALLIED BUILDING ASSOCIATES LTD, Cambridge, CB22 £23,200
DEBRAY BUILDERS, Little Shelford, CB22 £21,832
EXP Property Maintenance, Suite 18, Middle Court Copley Hill Busin, CB22 £21,848
J. WATSON BUILDERS, 6 Old Bedford Road, Potton, Bedfordshire, SG19 £21,768

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Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Flat Roof Extension near South Cambridgeshire£37£258
Flat Roof Extension near Cambridge£33£234
Flat Roof Extension near St Neots£42£256
Flat Roof Extension near Huntingdon£31£236
Flat Roof Extension near Biggleswade£35£229
Flat Roof Extension near Huntingdonshire£29£240
Flat Roof Extension near Ely£32£230
Flat Roof Extension near Letchworth£37£239
Flat Roof Extension near North Hertfordshire£37£238
Flat Roof Extension near South Bedfordshire£38£233