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Flat roof extension cost in BT4

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 BT4?

A flat roof extension ranges from the cheapest of £20,960 (Anak based in BT40) to the dearest of £21,200 (N W Doyle & Son based in BT24), 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 BT4 by posting a job with HaMuch. We'll send it to extension builders in BT4.

Estimates for flat roof extension near BT4

Estimates for common extension builder jobs in BT4;

JobEstimate
Underpinning a house£16,617
Build a two storey extension£86,675
Build a timber frame extension£25,117
Install a swimming pool£80,117
Cost to build a single storey extension£37,331
Cost to build a side return extension£31,561
Install an RSJ£1,317
Build an outbuilding£9,117
Build a mansard loft conversion£51,117
Cost of a loft conversion£25,468
Build a kitchen extension£41,117
Build a hip to gable loft conversion£41,117
Build a granny annexe£86,117
Build a garden office£9,117
Convert a garage£15,117
Build a new garage£17,617
Build a flat roof extension£21,117
Build a dormer loft conversion£41,117
Lay a concrete foundation£5,367
Convert a bungalow loft£28,117
Basement conversion cost£27,561
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Rates for other BT4 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 BT4
Estimate Flat roof extension cost in BT4 based on hourly/daily rate (excluding VAT or callout charges)
Business name Flat roof extension cost
Firenstack Solutions, Cregagh, BT6 £21,080
MIRKOW, Cregagh, BT6 £21,088
SM Plumbing & Heating, Ormeau, BT7 £21,088
McEvoy Building & Joinery, Cregagh, BT6 £21,096
C.H Property Services, Falls Road, BT12 £21,088
Designco Ltd, Antrim, BT36 £21,152
Extended living by Gilbert-Ash, 47 Boucher Road, Belfast, BT12 £21,072
M & M Construction, Mossley, BT36 £21,080
Ballantine building solutions, Antrim, Bt37 £21,144
AK Building Services, Carryduff, BT8 £21,152
H.M.Builders, Andersonstown, BT11 £21,096
DGA, Antrim, BT37 £21,160
Mount Oriel Conversions & Extensions, Belfast, BT8 £21,096
LM Design & Build, Antrim, BT36 £21,168
Belfast Loft Company, Belfast, BT17 £21,104
Finch Construction NI, Antrim, BT28 £21,184
T.I Building, Ballinderry, BT28 £21,104
apex pharaoh ltd, Down, bt30 £21,136
N W Doyle & Son, Ballynahinch, BT24 £21,200
Anak , larne, BT40 £20,960
Colin Gilmore Building Contractor, Newtownards, BT22 £21,200

Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Flat Roof Extension near Belfast£19£132
Flat Roof Extension near Holywood£19£125
Flat Roof Extension near Carryduff£19£130
Flat Roof Extension near Comber£20£142
Flat Roof Extension near Greenisland£20£134
Flat Roof Extension near Ballygowan£20£150
Flat Roof Extension near Bangor£20£150
Flat Roof Extension near Bangor£20£150
Flat Roof Extension near Carrickfergus£21£145
Flat Roof Extension near Lisburn£20£139