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Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Sajmar Metali
Loft and Teams Ltd is an established extension buildering business in N9. We come highly recommended and provide competitive quotes for your work.<...
We are an experienced team dedicated to designing property in a way that is both beautiful and practical. For most people buying a property is an e...
From £81,168
Arben Neza (Benny)
We are focused on delivering high quality loft conversions, house extensions, full or partial house refurbishment, also maximising the full potent...
From £81,256
Need to find an Extension Builder near you for all your extension buildering work?
S E H BUILDERS LTD provides a local, trusted extension b...
From £81,528
Relax... you have found a reliable extension builder in N9. United construction group is a friendly and reliable company based in N9 who consider n...
From £81,160
Nexlevel - An aspiring construction and refurbishment company situated in the London. As a family-run business that is meshed with love, we believe...
From £81,408
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £81,408
K J B Loft Conversions & Extensions is a trusted extension builder serving customers in N9 and the surrounding area. Contact us to today to get a c...

The cost of installing a swimming pool in N9 ranges from £80,984 (Abarth Construction Ltd based in N18) to £81,528 (United construction group based in EN3), but the best way to get an idea of how much you'll spend is to get actual quotes.
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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.

Underpin a building - £17,750

Two storey extension - £88,376

Build a timber frame extension - £26,250

Build a swimming pool - £81,250

Single storey extension - £60,008

Side return extension - £44,317

Install an RSJ - £2,450

Outbuilding - £10,250

Build a Mansard loft conversion - £52,250

Loft conversion - £36,098

Build a kitchen extension - £42,250

Hip to gable loft conversion - £42,250

Granny annexe - £87,250

Garden office - £10,250

Convert a Garage - £16,250

Garage - £18,750

Build a flat roof extension - £22,250

Build a dormer loft conversion - £42,250

Concrete foundations - £6,500

Convert a bungalow loft - £29,250

Convert a basement - £40,317