Extend your Oxhey with an extension

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Flat roof extension cost in Oxhey

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 Oxhey?

A flat roof extension ranges from the cheapest of £20,040 (Adams Build and Design LTD. based in Ha6) to the dearest of £24,000 (Design & Build Builders Ltd based in WD18), 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 Oxhey by posting a job with HaMuch. We'll send it to extension builders in Oxhey.

Estimates for flat roof extension near Oxhey

Estimates for common extension builder jobs in Oxhey;

JobEstimate
Underpinning a house£17,422
Build a two storey extension£87,882
Build a timber frame extension£25,922
Install a swimming pool£80,922
Cost to build a single storey extension£53,432
Cost to build a side return extension£40,618
Install an RSJ£2,122
Build an outbuilding£9,922
Build a mansard loft conversion£51,922
Cost of a loft conversion£33,015
Build a kitchen extension£41,922
Build a hip to gable loft conversion£41,922
Build a granny annexe£86,922
Build a garden office£9,922
Convert a garage£15,922
Build a new garage£18,422
Build a flat roof extension£21,922
Build a dormer loft conversion£41,922
Lay a concrete foundation£6,172
Convert a bungalow loft£28,922
Basement conversion cost£36,618
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Rates for other Oxhey 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 Oxhey
Estimate Flat roof extension cost in Oxhey based on hourly/daily rate (excluding VAT or callout charges)
Business name Flat roof extension cost
Cannon Build Solutions, Hartsbourne House, Watford, Hertfordshire, WD19 £21,872
C S C BUILDINGS LTD, Oxhey, WD19 £21,888
Ideal Place Construction Ltd, Watford, WD19 £22,000
Sharp Building Ltd, Watford, WD19 £21,896
Architectural Brickwork Services, Hertfordshire, WD19 £21,968
AV Home Improvements, Herts, WD19 £21,968
Design & Build Builders Ltd, Watford, WD18 £24,000
Frame Brickwork, West Watford, WD18 £21,896
S2M VENTURES LLP, West Lothian, HA6 £21,968
1st Choice Builders UK, West Watford, WD18 £21,896
Project Squared Construction Ltd, Hertfordshire, ha6 £21,968
T N Roofing, Bushey Hall Drive, B, WD23 £21,888
Daniel London, London, Greater London, HA6 £21,872
AVENUE BUILDERS, Bushey Heath, WD23 £21,888
A&T Building, Watford, WD18 £21,888
Adams Build and Design LTD., Greater London, Ha6 £20,040
Active Property Solutions, London, Greater London, WD23 £21,872
Active Property Solutions, Greater London, WD23 £21,968
Ionesi Builders in Harrow, Harrow, HA3 £21,896
Primrose Projects, WATFORD, Hertfordshire, WD17 £21,864
Coste + Beno Ltd, Greater London, HA6 £21,968
Coste + Beno Ltd, 20 Leaf Close,, Northwood,, London, Greater London, HA6 £21,864
MJR Construction Ltd, Hertfordshire, WD23 £21,968
Excelsior Construction Ltd, Pinner, HA5 £21,888
GRAPHENE, London, Greater London, HA5 £21,856

Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Flat Roof Extension near Watford£37£239
Flat Roof Extension near Bushey£37£240
Flat Roof Extension near Rickmansworth£36£241
Flat Roof Extension near Harrow£37£235
Flat Roof Extension near Borehamwood£37£238
Flat Roof Extension near Hillingdon£56£240
Flat Roof Extension near Gerrards Cross£37£244
Flat Roof Extension near Brent Cross£37£237
Flat Roof Extension near High Barnet£37£236
Flat Roof Extension near St Albans£52£242