Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.8 (5 reviews)

Find affordable Kettering extension builders now

Extension builders rates in Kettering range from £25/hour £184/day (Ascot Property Solutions Limited) to £41/hour £272/day (Surrounding Villages Builders Limited). To see prices and availability now for your job click green button.

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"Loft extension: Construction of two rooms, small landing and permanent access stairs. Designs and steal calculations have been completed. Council has confirmed extension is within permitted development." - KETTERING, job posted 26/09/25

"**Ravens House Refurbishment – North Northamptonshire Council { internal refurbishment}** North Northamptonshire Council invites bids for £250,000 refurbishment works at Raven House Children’s Home, Corby. Scope includes minor roof repairs, internal refurbishments, underground drainage..." - NN16, job posted 15/05/25

"Loft conversion , looking for quotes for a loft conversion with dorma preferably because of room and height. We’re looking for the shell with plumbing and electrics . No plans drawn up as of yet." - NN14, job posted 12/03/25

"Velux Loft conversion without structural changes - Detached house - Property owner - No plans drawn up yet Convert residential loft into new bedroom and landing space. Property is only three years old. Current thinking is to fit two velux windows to front which match surrounding property, and..." - KETTERING, job posted 23/10/23

Compare Kettering extension builders rates

Compare Kettering extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Kettering	£34	£237
Extension Builders near Corby	£30	£214
Extension Builders near Wellingborough	£39	£251
Extension Builders near Market Harborough	£31	£217
Extension Builders near Rushden	£34	£231
Extension Builders near Northampton	£35	£239
Extension Builders near Stamford	£35	£248
Extension Builders near Huntingdonshire	£36	£290
Extension Builders near Wigston	£28	£210
Extension Builders near Bedford	£45	£278

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 - £25,864

Garden office - £9,864

Granny annexe - £86,864

Build a flat roof extension - £21,864

Convert a Garage - £15,864

Hip to gable loft conversion - £41,864

Convert a bungalow loft - £28,864

Build a dormer loft conversion - £41,864

Build a swimming pool - £80,864

Build a Mansard loft conversion - £51,864

Concrete foundations - £6,114

Underpin a building - £17,364

Two storey extension - £87,796

Convert a basement - £35,970

Side return extension - £39,970

Loft conversion - £32,475

Garage - £18,364

Single storey extension - £52,280

Outbuilding - £9,864

Install an RSJ - £2,064

Build a kitchen extension - £41,864

More extensions & conversions cost guides...

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