Build a single storey extension in Hillsborough from £37,720

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From £43,000

Last active Oct 26
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T.I Building

T.I Building is a trusted extension builder serving customers in Hillsborough and the surrounding area. Contact us to today to get a competitive qu...

From £37,720

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 £42,680

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Finch Construction NI

Relax... you have found a reliable extension builder in Hillsborough. Finch Construction NI is a friendly and reliable company based in Hillsboroug...

Estimates for common extension builder jobs in Hillsborough;

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...