Build a single storey extension in Dumbarton from £42,520

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From £42,520

Last active Jul 26
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Glencroft Builders Ltd

Experienced extension builder ready to quote for your work. Glencroft Builders Ltd is the best extension builder in Dumbarton. No obligation free q...

From £60,440

Last active Apr 26
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LOCHNAGAR CONSTRUCTION LTD

LOCHNAGAR CONSTRUCTION LTD is a trusted extension builder serving customers in Dumbarton and the surrounding area. Contact us to today to get a com...

From £57,080

Last active Apr 26
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DRUMKINNON JOINERY & BUILDING

DRUMKINNON JOINERY & BUILDING is a trusted extension builder serving customers in Dumbarton and the surrounding area. Contact us to today to get a ...

From £60,760

Last active Apr 26
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GH BUILDING SERVICES LTD

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

From £47,000

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CR Joiners

Craig Ross

Trusted and professional extension builder in Dumbarton. Experienced in all extension buildering work and keeping within budget and on quote. CR Jo...

Estimates for common extension builder jobs in Dumbarton;

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...