Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.79 (12 reviews)

Find affordable Potters Bar extension builders now

Extension builders rates in Potters Bar range from £25/hour £191/day (Bellator Construction Ltd) to £64/hour £320/day (Rafix Building). To see prices and availability now for your job click green button.

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"Loft conversion(dormer) with bedroom and en-suite bathroom on a bungalow and a rear single storey 5x4 flat roof extension" - AL2, job posted 09/10/26

"Loft conversion" - WD7, job posted 13/09/26

"Loft conversion quote" - EN5, job posted 20/06/26

"Loft conversion" - EN5, job posted 20/06/26

"Underpinning" - N20, job posted 01/03/26

"Underpinning" - EN2, job posted 19/12/25

"Rear dormer loft extension to provide 2 bedrooms and 1 shower room on a semi-detached property in Enfield." - EN2, job posted 15/07/25

"Rear dormer loft extension to provide 2 bedrooms and 1 shower room on a semi-detached property in Enfield" - EN2, job posted 15/07/25

"Outbuilding and plans" - EN6, job posted 16/12/24

"Concrete foundation for 5084 square feet" - EN6, job posted 27/08/24

"Loft conversion" - N20, job posted 11/01/24

"Loft extension and ground floor extension" - EN2, job posted 04/12/23

Compare Potters Bar extension builders rates

Compare Potters Bar extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Potters Bar	£43	£273
Extension Builders near High Barnet	£43	£272
Extension Builders near Hatfield	£42	£266
Extension Builders near Cheshunt	£48	£285
Extension Builders near Borehamwood	£42	£271
Extension Builders near Welwyn Garden City	£42	£269
Extension Builders near Muswell Hill	£44	£273
Extension Builders near St Albans	£43	£272
Extension Builders near Brent Cross	£43	£273
Extension Builders near Hertford	£46	£290

Job estimates from extension builders near you

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.

Build a timber frame extension - £26,200

Garden office - £10,200

Granny annexe - £87,200

Build a flat roof extension - £22,200

Convert a Garage - £16,200

Hip to gable loft conversion - £42,200

Convert a bungalow loft - £29,200

Build a dormer loft conversion - £42,200

Build a swimming pool - £81,200

Build a Mansard loft conversion - £52,200

Concrete foundations - £6,450

Underpin a building - £17,700

Two storey extension - £88,300

Convert a basement - £39,750

Side return extension - £43,750

Loft conversion - £35,625

Garage - £18,700

Single storey extension - £59,000

Outbuilding - £10,200

Install an RSJ - £2,400

Build a kitchen extension - £42,200

More extensions & conversions cost guides...

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