Need to find an Extension Builder near you for all your extension buildering work?
Picking your Local Builder provides a local, trusted ext...
Need an Extension Builder in NN4? Twelftree Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
M Home Renovations is an established extension buildering business in NN4. We come highly recommended and provide competitive quotes for your work....
Walsh Builders Ltd is an established and experienced local extension builder in NN4. Please contact us for a free, no obligation quote and competit...
Relax... you have found a reliable extension builder in NN4. Wright Building is a friendly and reliable company based in NN4 who consider no job as...
Need an Extension Builder in NN4? DAB & K&G Building Services has been helping local clients (20 mile radius) with their extension buildering jobs ...
Samrai Associates was founded by Hars Samrai in Northampton in order to provide clients with a prompt and robust Architectural Service. Over time m...
Need an Extension Builder in NN4? Catling Building Services Ltd has been helping local clients (20 mile radius) with their extension buildering job...
Neil Donlevy
Need to find an Extension Builder near you for all your extension buildering work?
The Builders - Northampton Limited provides a local, tru...
Paul Watts
We have a great team behind us, we offer friendly, competitive and professional service. With years of experience among the trades, there's not muc...

A timber frame extension built in NN4 typically ranges from £25,408 (Artizan Roofing based in NN2) to £26,248 (Samrai Associates Limited based in NN3), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.
Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build a timber frame extension in NN4 by posting a job with HaMuch and we'll send it to extension builders in NN4.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Timber Frame Extension near Northampton | £35 | £239 |
| Build A Timber Frame Extension near Wellingborough | £39 | £251 |
| Build A Timber Frame Extension near Daventry | £31 | £230 |
| Build A Timber Frame Extension near Milton Keynes | £39 | £263 |
| Build A Timber Frame Extension near Rushden | £34 | £231 |
| Build A Timber Frame Extension near Kettering | £34 | £237 |
| Build A Timber Frame Extension near Bletchley | £39 | £265 |
| Build A Timber Frame Extension near Market Harborough | £31 | £217 |
| Build A Timber Frame Extension near South Bedfordshire | £45 | £278 |
| Build A Timber Frame Extension near Bedford | £45 | £278 |
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 - £17,418

Two storey extension - £87,878

Build a timber frame extension - £25,918

Build a swimming pool - £80,918

Single storey extension - £53,368

Side return extension - £40,582

Install an RSJ - £2,118

Outbuilding - £9,918

Build a Mansard loft conversion - £51,918

Loft conversion - £32,985

Build a kitchen extension - £41,918

Hip to gable loft conversion - £41,918

Granny annexe - £86,918

Garden office - £9,918

Convert a Garage - £15,918

Garage - £18,418

Build a flat roof extension - £21,918

Build a dormer loft conversion - £41,918

Concrete foundations - £6,168

Convert a bungalow loft - £28,918

Convert a basement - £36,582