Local MK11 extension builders & latest jobs
Dean Prichard Building Services
£37/hour
£244/day
Relax... you have found a reliable extension builder in MK11. Dean Prichard Building Services is a friendly and reliable company based in MK11 who ...
"Two single bedroom" - MK8, job posted 22/06/26
Langton Build
£39/hour
£255/day
Trusted and professional extension builder in MK11. Experienced in all extension buildering work and keeping within budget and on quote. Langton Bu...
"Timber frame first floor extension above the garage, with outer leaf brickwork and tiled pitched roof above." - MK6, job posted 04/05/26
JAB
£46/hour
£312/day
Our building services company JAB Home Improvements helps customers in Milton Keynes and the surrounding area by providing professional, trustworth...
"Kitchen extension" - MILTON KEYNES, job posted 05/02/26
Asanta Builder
£43/hour
£284/day
Need to find an Extension Builder near you for all your extension buildering work?
Asanta Builder provides a local, trusted extension build...
"Loft conversion" - MILTON KEYNES, job posted 14/08/25
D Catt Builders
£38/hour
£252/day
Need an Extension Builder in MK11? D Catt Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many ye...
"Kitchen extension" - MILTON KEYNES, job posted 30/05/25
STARGRADE CONSTRUCTION LTD
£43/hour
£299/day
Need an Extension Builder in MK11? STARGRADE CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs ...
"Garage conversion" - MILTON KEYNES, job posted 25/05/25
ROGERS BUILDERS (AYLESBURY)LTD
£43/hour
£273/day
ROGERS BUILDERS (AYLESBURY)LTD are here to help customers who need an Extension Builder in MK11. We offer a competitive rate to complete all your e...
"First floor extension" - MK12, job posted 23/05/25
"Kitchen extension" - MILTON KEYNES, job posted 08/04/25
Hyatt and Co Building Services
£44/hour
£281/day
Hyatt and Co Building Services was established over 20 years ago and have been providing customers in Milton Keynes and the surrounding areas a pro...
"Garage conversion to a kitchen" - MILTON KEYNES, job posted 25/03/25
Alexander Bradshaw LTD
£43/hour
£279/day
Relax... you have found a reliable extension builder in MK11. Alexander Bradshaw LTD is a friendly and reliable company based in MK11 who consider ...
"Garage conversion" - MILTON KEYNES, job posted 25/03/25
JA Project Management Services
£42/hour
£285/day
Need an Extension Builder in MK11? JA Project Management Services has been helping local clients (20 mile radius) with their extension buildering j...
"Single storey extension" - MILTON KEYNES, job posted 22/02/25
The most important thing is do avoid handing over cash or paying large sums in advance. Be wary of paying cash for a cheaper job, i.e. to avoid VAT, you may be going down a slippery slope of not doing things properly which may eventually mean your job is also not done properly.
Agree when you intend to pay, ideally after you are satisfied with the completed job. If it is a big job agree a schedule of staged payments which is fair to both parties.
To avoid bad tradespeople and to ensure you can find them should they not answer a mobile;
- Get proper contact details and check them yourself
- Check if the company is verified on the Companies House website
- Get phone details, ideally a land line or 0800 number and check it
- Get a physical office address
Get quotes in writing by email or in person if possible. Getting quotes online or by text is ok (make sure you accept the offer by replying). For large projects make a written agreement, schedule of works and snagging plans as part of a working document. Also;
- Agree expected quality of workmanship and materials in advance
- When will work start and when will project be finished, what happens if project over runs ?
- How long is the guarantee on work and materials eg 12 months
- Discuss onsite behaviour in advance (no smoking, swearing or using mobile phones for non-work purposes)
- Agree that your Extension Builder will remove all debris and rubbish and what level of tidying up you want after job
Compare MK11 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Milton Keynes | £39 | £263 |
| Extension Builders near Bletchley | £39 | £265 |
| Extension Builders near Aylesbury Vale | £36 | £246 |
| Extension Builders near Leighton Buzzard | £38 | £270 |
| Extension Builders near Northampton | £35 | £239 |
| Extension Builders near Ampthill | £38 | £258 |
| Extension Builders near Aylesbury | £42 | £270 |
| Extension Builders near Kempston | £44 | £273 |
| Extension Builders near Mid Bedfordshire | £42 | £276 |
| Extension Builders near Bicester | £35 | £249 |
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 - £26,176
Garden office - £10,176
Granny annexe - £87,176
Build a flat roof extension - £22,176
Convert a Garage - £16,176
Hip to gable loft conversion - £42,176
Convert a bungalow loft - £29,176
Build a dormer loft conversion - £42,176
Build a swimming pool - £81,176
Build a Mansard loft conversion - £52,176
Concrete foundations - £6,426
Underpin a building - £17,676
Two storey extension - £88,264
Convert a basement - £39,480
Side return extension - £43,480
Loft conversion - £35,400
Garage - £18,676
Single storey extension - £58,520
Outbuilding - £10,176
Install an RSJ - £2,376
Build a kitchen extension - £42,176
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