Build a single storey extension in Holywood from £38,520

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From £42,360

Last active May 26
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SM Plumbing & Heating

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

From £40,920

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Ballantine building solutions

Ballantine building solutions is an established extension buildering business in Holywood. We come highly recommended and provide competitive quote...

From £42,680

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Designco Ltd

Designco Ltd is an established extension buildering business in Holywood. We come highly recommended and provide competitive quotes for your work.<...

From £40,280

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DGA

Trusted and professional extension builder in Holywood. Experienced in all extension buildering work and keeping within budget and on quote. DGA ha...

From £42,520

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LM Design & Build

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

From £38,520

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Extended living by Gilbert-Ash

Trusted and professional extension builder in Holywood. Experienced in all extension buildering work and keeping within budget and on quote. Extend...

Estimates for common extension builder jobs in Holywood;

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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