Extend your Caerphilly with an extension

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 Caerphilly? To see prices and availability for your job click green button.

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From £21,552

Last active Oct 26
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P ALLEN BUILDERS

P ALLEN BUILDERS is an established and experienced local extension builder in Caerphilly. Please contact us for a free, no obligation quote and com...

From £21,728

Last active Oct 26
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The Philog Paving Services

The Philog Paving Services is an established extension buildering business in Caerphilly. We come highly recommended and provide competitive quotes...

From £21,808

Last active Oct 26
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Chapman Builders

Experienced extension builder ready to quote for your work. Chapman Builders is the best extension builder in Caerphilly. No obligation free quotes...

From £21,200

Last active Oct 26
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A.Gaddarn Builders

Alan Gaddarn

Very reliable honest and hard working guarantee all work clean and tidy first class work

From £21,616

Last active Sep 26
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JA Building Maintenance

Experienced extension builder ready to quote for your work. JA Building Maintenance is the best extension builder in Caerphilly. No obligation free...

From £21,784

Last active Sep 26
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TOR BUILD

Experienced extension builder ready to quote for your work. TOR BUILD is the best extension builder in Caerphilly. No obligation free quotes and ma...

From £21,632

Last active Sep 26
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Charles Marshall Contracting Ltd

Relax... you have found a reliable extension builder in Caerphilly. Charles Marshall Contracting Ltd is a friendly and reliable company based in Ca...

From £21,816

Last active Aug 26
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G T Brickwork

Gareth Thorpe

G T Brickwork is an established extension buildering business in Caerphilly. We come highly recommended and provide competitive quotes for your wor...

From £21,704

Last active Jul 26
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BUILD-TEC CONTRACTORS LTD

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £21,648

Last active Jul 26
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Jac Jones Construction Ltd

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Flat roof extension cost in Caerphilly

Estimates for build a flat roof extension near Caerphilly

A flat roof extension ranges from the cheapest of £21,200 (A.Gaddarn Builders based in NP11) to the dearest of £21,816 (G T Brickwork based in CF82), 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 Caerphilly by posting a job with HaMuch. We'll send it to extension builders in Caerphilly.


Estimates for common extension builder jobs in Caerphilly;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

More extensions & conversions cost guides...