B GS GENERAL BUILDERS are here to help customers who need an Extension Builder in NN17. We offer a competitive rate to complete all your extension ...
From £87,208
Ascot Property Solutions Limited is an established and experienced local extension builder in NN17. Please contact us for a free, no obligation quo...
From £87,364
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Costs range from £87,208 (Ascot Property Solutions Limited based in NN17) to £87,484 (B GS GENERAL BUILDERS based in NN17), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
Post your job on HaMuch and we'll send it to extension builders to NN17.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Corby | £30 | £214 |
| Two Storey Extension near Kettering | £34 | £237 |
| Two Storey Extension near Market Harborough | £31 | £217 |
| Two Storey Extension near Wellingborough | £39 | £251 |
| Two Storey Extension near Stamford | £35 | £248 |
| Two Storey Extension near Rushden | £34 | £231 |
| Two Storey Extension near Wigston | £28 | £209 |
| Two Storey Extension near Hamilton | £29 | £213 |
| Two Storey Extension near Peterborough | £40 | £281 |
| Two Storey Extension near Oadby | £28 | £207 |
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 - £17,068

Two storey extension - £87,352

Build a timber frame extension - £25,568

Build a swimming pool - £80,568

Single storey extension - £46,360

Side return extension - £36,640

Install an RSJ - £1,768

Outbuilding - £9,568

Build a Mansard loft conversion - £51,568

Loft conversion - £29,700

Build a kitchen extension - £41,568

Hip to gable loft conversion - £41,568

Granny annexe - £86,568

Garden office - £9,568

Convert a Garage - £15,568

Garage - £18,068

Build a flat roof extension - £21,568

Build a dormer loft conversion - £41,568

Concrete foundations - £5,818

Convert a bungalow loft - £28,568

Convert a basement - £32,640