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Flat roof extension cost in BT11

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 BT11?

A flat roof extension ranges from the cheapest of £21,072 (Extended living by Gilbert-Ash based in BT12) to the dearest of £21,224 (The Method Group based in BT66), 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 BT11 by posting a job with HaMuch. We'll send it to extension builders in BT11.

Estimates for flat roof extension near BT11

Estimates for common extension builder jobs in BT11;

JobEstimate
Underpinning a house£16,631
Build a two storey extension£86,696
Build a timber frame extension£25,131
Install a swimming pool£80,131
Cost to build a single storey extension£37,618
Cost to build a side return extension£31,723
Install an RSJ£1,331
Build an outbuilding£9,131
Build a mansard loft conversion£51,131
Cost of a loft conversion£25,602
Build a kitchen extension£41,131
Build a hip to gable loft conversion£41,131
Build a granny annexe£86,131
Build a garden office£9,131
Convert a garage£15,131
Build a new garage£17,631
Build a flat roof extension£21,131
Build a dormer loft conversion£41,131
Lay a concrete foundation£5,381
Convert a bungalow loft£28,131
Basement conversion cost£27,723
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Rates for other BT11 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 BT11
Estimate Flat roof extension cost in BT11 based on hourly/daily rate (excluding VAT or callout charges)
Business name Flat roof extension cost
H.M.Builders, Andersonstown, BT11 £21,096
Belfast Loft Company, Belfast, BT17 £21,104
Extended living by Gilbert-Ash, 47 Boucher Road, Belfast, BT12 £21,072
C.H Property Services, Falls Road, BT12 £21,088
SM Plumbing & Heating, Ormeau, BT7 £21,088
MIRKOW, Cregagh, BT6 £21,088
McEvoy Building & Joinery, Cregagh, BT6 £21,096
Firenstack Solutions, Cregagh, BT6 £21,080
Finch Construction NI, Antrim, BT28 £21,184
T.I Building, Ballinderry, BT28 £21,104
AK Building Services, Carryduff, BT8 £21,152
M & M Construction, Mossley, BT36 £21,080
Designco Ltd, Antrim, BT36 £21,152
Mount Oriel Conversions & Extensions, Belfast, BT8 £21,096
LM Design & Build, Antrim, BT36 £21,168
Ballantine building solutions, Antrim, Bt37 £21,144
DGA, Antrim, BT37 £21,160
apex pharaoh ltd, Down, bt30 £21,136
R.J Builders, Aghagallon, BT67 £21,144
N W Doyle & Son, Ballynahinch, BT24 £21,200
The Method Group, Gibson's Hill, Craigavon, BT66 £21,224
Power Construction, Drumgor, BT65 £21,224

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 Carryduff£19£130
Flat Roof Extension near Lisburn£20£139
Flat Roof Extension near Hillsborough and Culcavy£21£141
Flat Roof Extension near Holywood£19£125
Flat Roof Extension near Crumlin£22£168
Flat Roof Extension near Maghaberry£27£175
Flat Roof Extension near Greenisland£20£134
Flat Roof Extension near Comber£20£142
Flat Roof Extension near Saintfield£20£141