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Flat roof extension cost in SG8

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 SG8?

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 SG8 by posting a job with HaMuch. We'll send it to extension builders in SG8.

Estimates for flat roof extension near SG8

Estimates for common extension builder jobs in SG8;

JobEstimate
Underpinning a house£17,445
Build a two storey extension£87,917
Build a timber frame extension£25,945
Install a swimming pool£80,945
Cost to build a single storey extension£53,893
Cost to build a side return extension£40,877
Install an RSJ£2,145
Build an outbuilding£9,945
Build a mansard loft conversion£51,945
Cost of a loft conversion£33,231
Build a kitchen extension£41,945
Build a hip to gable loft conversion£41,945
Build a granny annexe£86,945
Build a garden office£9,945
Convert a garage£15,945
Build a new garage£18,445
Build a flat roof extension£21,945
Build a dormer loft conversion£41,945
Lay a concrete foundation£6,195
Convert a bungalow loft£28,945
Basement conversion cost£36,877
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Rates for other SG8 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 SG8
Estimate Flat roof extension cost in SG8 based on hourly/daily rate (excluding VAT or callout charges)
Business name Flat roof extension cost
Refresh Renovations - Cambridgeshire - Simon, 70 Tannery Drift, Royston, Hertfordshire, SG8 £21,856
Rescapes Construction Ltd, Hertfordshire, SG8 £21,968
ECO DESIGN & BUILD (UK) LTD, Royston, SG8 £21,816
M OLIVER BUILDING, Royston, SG8 £21,816
Fenlake Construction, Cambridgeshire, CB23 £21,936
ALLIED BUILDING ASSOCIATES LTD, Cambridge, CB22 £23,200
Steve Rolt Home Improvements Ltd, Hertfordshire, SG9 £22,048
Essex Roofing Ltd, Saffron Walden, CB11 £21,928
O G Conversions, Saffron walden, CB11 £21,904
DEBRAY BUILDERS, Little Shelford, CB22 £21,832
Find a Handyman (Neil), Little Shelford, CB22 £21,840
Bricklayers, Offley, SG5 £21,896
North Hertfordshire Construction Ltd, Hitchin, SG5 £22,000
J. WATSON BUILDERS, 6 Old Bedford Road, Potton, Bedfordshire, SG19 £21,768
Draincall Services Ltd, 20 Such Close, Letchworth Garden City, H, SG6 £21,848
Gilbert & Gregson Construction Ltd, Letchworth Garden City, Hertfordshire, SG6 £21,824
M SPINDLER CONSTRUCTION LTD, Letchworth, SG6 £21,960
EXP Property Maintenance, Suite 18, Middle Court Copley Hill Busin, CB22 £21,848
Louise Swarbrick Design, Cambridgeshire, CB3 £21,928
TSN Consultants Ltd, Cambridge, CB1 £21,864
TCL BUILDING SOLUTIONS LTD, Biggleswade, SG18 £22,008
Beaumont Construction, Cambridge, Cambridge, Cambridgeshire, CB1 £21,856
WILLMOTT DIXON CONSTRUCTION LI, Letchworth, SG6 £21,968
James Burch Roofing, Great Cambourne, Cam, CB23 £21,760
WALKERN CONSTRUCTION LIMITED, Ardeley, SG2 £21,944

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Location in UKHourly RateDaily Rate
Flat Roof Extension near South Cambridgeshire£37£258
Flat Roof Extension near Letchworth£37£239
Flat Roof Extension near Biggleswade£35£230
Flat Roof Extension near North Hertfordshire£37£239
Flat Roof Extension near Cambridge£33£234
Flat Roof Extension near East Hertfordshire£37£241
Flat Roof Extension near Stevenage£37£239
Flat Roof Extension near Hitchin£37£238
Flat Roof Extension near St Neots£42£256
Flat Roof Extension near Bishop's Stortford£36£229