From £26,272
Need to find an Extension Builder near you for all your extension buildering work?
Asanta Builder provides a local, trusted extension build...
From £26,240
I am a British Gas trained engineer with a vast knowledge of all gas, central heating, and plumbing systems. Now working independently, I provide i...
From £26,040
Trusted and professional extension builder in MK9. Experienced in all extension buildering work and keeping within budget and on quote. Langton Bui...
From £25,952
Relax... you have found a reliable extension builder in MK9. Dean Prichard Building Services is a friendly and reliable company based in MK9 who co...
From £26,224
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £26,280
Need an Extension Builder in MK9? JA Project Management Services has been helping local clients (20 mile radius) with their extension buildering jo...
From £26,392
Need an Extension Builder in MK9? STARGRADE CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs f...
From £26,152
Our building services company Dallcompanies Limited was established in May 2023, but have been helping customers in Milton Keynes and the surroundi...
From £26,088
Need to find an Extension Builder near you for all your extension buildering work?
Go-Large Design & Build Ltd provides a local, trusted ex...
From £26,232
Relax... you have found a reliable extension builder in MK9. Alexander Bradshaw LTD is a friendly and reliable company based in MK9 who consider no...

A timber frame extension built in MK9 typically ranges from £25,952 (Dean Prichard Building Services based in MK13) to £26,392 (STARGRADE CONSTRUCTION LTD based in MK8), 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 MK9 by posting a job with HaMuch and we'll send it to extension builders in MK9.
"Timber frame first floor extension above the garage, with outer leaf brickwork and tiled pitched roof above." - MK6, job posted 05/04/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Timber Frame Extension near Milton Keynes | £39 | £263 |
| Build A Timber Frame Extension near Bletchley | £39 | £265 |
| Build A Timber Frame Extension near Leighton Buzzard | £38 | £270 |
| Build A Timber Frame Extension near Ampthill | £38 | £258 |
| Build A Timber Frame Extension near Aylesbury Vale | £36 | £246 |
| Build A Timber Frame Extension near Mid Bedfordshire | £42 | £276 |
| Build A Timber Frame Extension near Kempston | £44 | £273 |
| Build A Timber Frame Extension near Bedford | £45 | £278 |
| Build A Timber Frame Extension near South Bedfordshire | £45 | £278 |
| Build A Timber Frame Extension near Dunstable | £41 | £270 |
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 - £17,687

Two storey extension - £88,281

Build a timber frame extension - £26,187

Build a swimming pool - £81,187

Single storey extension - £58,744

Side return extension - £43,606

Install an RSJ - £2,387

Outbuilding - £10,187

Build a Mansard loft conversion - £52,187

Loft conversion - £35,505

Build a kitchen extension - £42,187

Hip to gable loft conversion - £42,187

Granny annexe - £87,187

Garden office - £10,187

Convert a Garage - £16,187

Garage - £18,687

Build a flat roof extension - £22,187

Build a dormer loft conversion - £42,187

Concrete foundations - £6,437

Convert a bungalow loft - £29,187

Convert a basement - £39,606