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Mandala Building Services is a family-owned design and build maintenance company, encompassing everything from residential refurbishment to large-s...
Need to find an Extension Builder near you for all your extension buildering work?
BELLVIEW BUILDERS LTD provides a local, trusted extensio...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
SJ Expert Building Services are here to help customers who need an Extension Builder in Borehamwood. We offer a competitive rate to complete all yo...
J Wijayamohan
JJSR Construction Ltd is an established and experienced local extension builder in Borehamwood. Please contact us for a free, no obligation quote a...
Rafal Szczepanski
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
Sharp Building Ltd is an established and experienced local extension builder in Borehamwood. Please contact us for a free, no obligation quote and ...
Mario Prajar Building Services is an established and experienced local extension builder in Borehamwood. Please contact us for a free, no obligatio...
RLC Construction are here to help customers who need an Extension Builder in Borehamwood. We offer a competitive rate to complete all your extensio...

"Single storey extension" - BOREHAMWOOD, job posted 07/05/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Borehamwood | £42 | £271 |
| Single Storey Extension near High Barnet | £43 | £272 |
| Single Storey Extension near Bushey | £43 | £278 |
| Single Storey Extension near Potters Bar | £43 | £273 |
| Single Storey Extension near Brent Cross | £43 | £273 |
| Single Storey Extension near Watford | £43 | £280 |
| Single Storey Extension near Harrow | £43 | £270 |
| Single Storey Extension near Muswell Hill | £44 | £273 |
| Single Storey Extension near St Albans | £43 | £272 |
| Single Storey Extension near Hatfield | £42 | £266 |
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 - £17,804

Two storey extension - £88,456

Build a timber frame extension - £26,304

Build a swimming pool - £81,304

Single storey extension - £61,080

Side return extension - £44,920

Install an RSJ - £2,504

Outbuilding - £10,304

Build a Mansard loft conversion - £52,304

Loft conversion - £36,600

Build a kitchen extension - £42,304

Hip to gable loft conversion - £42,304

Granny annexe - £87,304

Garden office - £10,304

Convert a Garage - £16,304

Garage - £18,804

Build a flat roof extension - £22,304

Build a dormer loft conversion - £42,304

Concrete foundations - £6,554

Convert a bungalow loft - £29,304

Convert a basement - £40,920