Affordable PO3 Extension Builders from £28/hr

Find affordable PO3 extension builders now

Extension builders rates in PO3 range from £30/hour £216/day (H B Builders) to £41/hour £288/day (Thermic Homes). To see prices and availability now for your job click green button.

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"Garden office" - PO9, job posted 05/01/26

"Loft conversion" - HAVANT & WATERLOO, job posted 02/11/25

"Two storey extension" - PO12, job posted 30/09/25

"Single storey extension" - GOSPORT, job posted 21/07/25

"Two storey extension" - PORTSMOUTH, job posted 08/07/25

"RSJ installation" - PO2, job posted 25/11/24

"Loft conversion" - PORTSMOUTH, job posted 06/11/24

"Garage 5 metre by 4.7" - PORTSMO, job posted 28/09/24

"Loft conversion" - PORTSMOUTH, job posted 14/09/24

"Loft conversion" - PORTSMOUTH, job posted 19/08/24

"Loft conversion" - PORTSMOUTH, job posted 29/07/24

"Loft conversion: I am asking for to have loft conversion done to my house which has 3 bedrooms. It is a mid terraced house. What I am looking for is to build 2 big bedrooms in the loft and to have with fitted wardrobes in both of the rooms as well make extra storage units too and also to build a..." - PORTSMOUTH, job posted 11/04/24

"Loft conversion in my bunglow. No plans" - PORTSMOUTH, job posted 03/10/23

"Loft conversion" - PORTSMOUTH, job posted 09/08/23

Compare PO3 extension builders rates

Compare PO3 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Portsmouth	£36	£250
Extension Builders near Gosport	£35	£246
Extension Builders near Havant & Waterloo	£35	£248
Extension Builders near Havant	£35	£249
Extension Builders near Waterlooville	£36	£250
Extension Builders near Fareham	£35	£250
Extension Builders near Lee-on-the-Solent	£35	£249
Extension Builders near Horndean	£36	£254
Extension Builders near Ryde	£34	£255
Extension Builders near Locks Heath	£33	£240

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 - £25,960

Garden office - £9,960

Granny annexe - £86,960

Build a flat roof extension - £21,960

Convert a Garage - £15,960

Hip to gable loft conversion - £41,960

Convert a bungalow loft - £28,960

Build a dormer loft conversion - £41,960

Build a swimming pool - £80,960

Build a Mansard loft conversion - £51,960

Concrete foundations - £6,210

Underpin a building - £17,460

Two storey extension - £87,940

Convert a basement - £37,050

Side return extension - £41,050

Loft conversion - £33,375

Garage - £18,460

Single storey extension - £54,200

Outbuilding - £9,960

Install an RSJ - £2,160

Build a kitchen extension - £41,960

More extensions & conversions cost guides...

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