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

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From £21,136

Last active Jun 26
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Mount Oriel Conversions & Extensions

Need to find an Extension Builder near you for all your extension buildering work?

Mount Oriel Conversions & Extensions provides a local, t...

From £21,368

Last active May 26
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SM Plumbing & Heating

Relax... you have found a reliable extension builder in Comber. SM Plumbing & Heating is a friendly and reliable company based in Comber who consid...

From £21,488

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AK Building Services

Adam King

Ak building 

From £21,272

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apex pharaoh ltd

apex pharaoh ltd is a trusted extension builder serving customers in Comber and the surrounding area. Contact us to today to get a competitive quot...

Flat roof extension cost in Comber

Estimates for build a flat roof extension near Comber

A flat roof extension ranges from the cheapest of £21,136 (Mount Oriel Conversions & Extensions based in BT8) to the dearest of £21,488 (AK Building Services based in BT8), 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 Comber by posting a job with HaMuch. We'll send it to extension builders in Comber.


Estimates for common extension builder jobs in Comber;

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.

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