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Dean Prichard Building Services
£37/hour
£244/day
Relax... you have found a reliable extension builder in MK13. Dean Prichard Building Services is a friendly and reliable company based in MK13 who ...
"Two single bedroom" - MK8, job posted 22/06/26
A J S Building Work
£40/hour
£278/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Timber frame first floor extension above the garage, with outer leaf brickwork and tiled pitched roof above." - MK6, job posted 04/05/26
Langton Build
£39/hour
£255/day
Trusted and professional extension builder in MK13. Experienced in all extension buildering work and keeping within budget and on quote. Langton Bu...
"Kitchen extension" - MILTON KEYNES, job posted 05/02/26
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...
"Loft conversion" - MILTON KEYNES, job posted 14/08/25
Highland Homes & Gardens
£35/hour
£231/day
Need an Extension Builder in MK13? Highland Homes & Gardens has been helping local clients (20 mile radius) with their extension buildering jobs fo...
"Kitchen extension" - MILTON KEYNES, job posted 30/05/25
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...
"Garage conversion" - MILTON KEYNES, job posted 25/05/25
Go-Large Design & Build Ltd
£39/hour
£261/day
Need to find an Extension Builder near you for all your extension buildering work?
Go-Large Design & Build Ltd provides a local, trusted ex...
"First floor extension" - MK12, job posted 23/05/25
D Catt Builders
£38/hour
£252/day
Need an Extension Builder in MK13? 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 08/04/25
STARGRADE CONSTRUCTION LTD
£43/hour
£299/day
Need an Extension Builder in MK13? STARGRADE CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs ...
"Garage conversion to a kitchen" - MILTON KEYNES, job posted 25/03/25
Dallcompanies Limited
£39/hour
£269/day
Our building services company Dallcompanies Limited was established in May 2023, but have been helping customers in Milton Keynes and the surroundi...
"Garage conversion" - MILTON KEYNES, job posted 25/03/25
ADAPTIVE BUILDING SOLUTIONS LT
£35/hour
£223/day
Relax... you have found a reliable extension builder in MK13. ADAPTIVE BUILDING SOLUTIONS LT is a friendly and reliable company based in MK13 who c...
"Single storey extension" - MILTON KEYNES, job posted 22/02/25
"Loft conversion with dormer" - MK3, job posted 12/02/25
"Loft conversion" - MILTON KEYNES, job posted 17/12/24
JA Project Management Services
£42/hour
£285/day
Need an Extension Builder in MK13? JA Project Management Services has been helping local clients (20 mile radius) with their extension buildering j...
"Loft conversion" - MILTON KEYNES, job posted 18/07/24
Alexander Bradshaw LTD
£43/hour
£279/day
Relax... you have found a reliable extension builder in MK13. Alexander Bradshaw LTD is a friendly and reliable company based in MK13 who consider ...
"Loft conversion" - MILTON KEYNES, job posted 09/07/24
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...
"Internal supporting wall needs removing (3.5m wide) and RSJ installed above plinths within ceiling." - MK19, job posted 19/06/24
Steve Miller Building Services
£41/hour
£279/day
Our building services company Steve Miller Building Services have thirty-eight years’ experience and have been helping customers in Pagnell and t...
"Loft conversion" - MILTON KEYNES, job posted 07/05/24
Custom Glaze
£40/hour
£268/day
Established over 34 years ago, we are a family run and independent business committed to our founding principle of providing our customers with hig...
"Loft conversion" - MILTON KEYNES, job posted 23/04/24
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 MK13 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 Leighton Buzzard | £38 | £270 |
| Extension Builders near Ampthill | £38 | £258 |
| Extension Builders near Aylesbury Vale | £36 | £246 |
| Extension Builders near Northampton | £35 | £239 |
| Extension Builders near Kempston | £44 | £273 |
| Extension Builders near Mid Bedfordshire | £42 | £276 |
| Extension Builders near South Bedfordshire | £45 | £278 |
| 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 - £26,120
Garden office - £10,120
Granny annexe - £87,120
Build a flat roof extension - £22,120
Convert a Garage - £16,120
Hip to gable loft conversion - £42,120
Convert a bungalow loft - £29,120
Build a dormer loft conversion - £42,120
Build a swimming pool - £81,120
Build a Mansard loft conversion - £52,120
Concrete foundations - £6,370
Underpin a building - £17,620
Two storey extension - £88,180
Convert a basement - £38,850
Side return extension - £42,850
Loft conversion - £34,875
Garage - £18,620
Single storey extension - £57,400
Outbuilding - £10,120
Install an RSJ - £2,320
Build a kitchen extension - £42,120
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