Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.63 (20 reviews)

Find affordable Penarth extension builders now

Extension builders rates in Penarth range from £16/hour £130/day (PK CONSTRUCTION) to £55/hour £325/day (RDL BUILDING SERVICES LTD). To see prices and availability now for your job click green button.

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"Build a kitchen extension" - CARDIFF, job posted 06/10/26

"Side return extension" - CF24, job posted 21/08/26

"Loft conversion" - CF23, job posted 16/05/26

"Loft conversion" - CARDIFF, job posted 01/11/25

"Kitchen extension" - CARDIFF, job posted 31/10/25

"Side return extension" - CF24, job posted 21/09/25

"Build a garden office, Build a dormer loft conversion" - CF23, job posted 03/06/25

"RSJ installation to open up kitchen and utility room. About 2m wide." - CARDIFF, job posted 22/04/25

"RSJ installation" - CARDIFF, job posted 22/04/25

"Single storey extension" - CF24, job posted 09/04/25

"Side return extension" - CF24, job posted 25/03/25

"Side return extension" - CF24, job posted 11/01/25

"Loft conversion with en suite" - CARDIFF, job posted 29/12/24

"Loft conversion" - CARDIFF, job posted 20/11/24

"Loft conversion" - CARDIFF, job posted 23/09/24

"Garage" - CF63, job posted 22/09/24

"Loft conversion" - CARDIFF, job posted 08/09/24

"Kitchen extension" - CARDIFF, job posted 14/06/24

"Loft conversion" - CARDIFF, job posted 14/06/24

"Side return extension" - CF24, job posted 19/05/24

Compare Penarth extension builders rates

Compare Penarth extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Penarth	£35	£224
Extension Builders near Cardiff	£34	£223
Extension Builders near Barry	£33	£223
Extension Builders near Caerphilly	£33	£208
Extension Builders near Church Village	£34	£214
Extension Builders near Weston-super-Mare	£33	£253
Extension Builders near Vale of Glamorgan	£29	£217
Extension Builders near Risca	£32	£218
Extension Builders near Pontypridd	£33	£211
Extension Builders near Newport	£41	£233

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 - £25,720

Garden office - £9,720

Granny annexe - £86,720

Build a flat roof extension - £21,720

Convert a Garage - £15,720

Hip to gable loft conversion - £41,720

Convert a bungalow loft - £28,720

Build a dormer loft conversion - £41,720

Build a swimming pool - £80,720

Build a Mansard loft conversion - £51,720

Concrete foundations - £5,970

Underpin a building - £17,220

Two storey extension - £87,580

Convert a basement - £34,350

Side return extension - £38,350

Loft conversion - £31,125

Garage - £18,220

Single storey extension - £49,400

Outbuilding - £9,720

Install an RSJ - £1,920

Build a kitchen extension - £41,720

More extensions & conversions cost guides...

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