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RS Plumbing and Heating
£42/hour
£281/day
RS Plumbing and Heating is a trusted extension builder serving customers in MK42 and the surrounding area. Contact us to today to get a competitive...
"Build a kitchen extension" - MK42, job posted 25/08/26
Bench Mark Construction
£44/hour
£306/day
Relax... you have found a reliable extension builder in MK42. Bench Mark Construction is a friendly and reliable company based in MK42 who consider...
"RSJ installation" - MK41, job posted 16/05/26
A M Interiors
£88/hour
£351/day
Need to find an Extension Builder near you for all your extension buildering work?
A M Interiors provides a local, trusted extension builde...
"Kitchen extension" - MK40, job posted 27/12/25
KIP Builders Ltd
£43/hour
£275/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Loft conversion" - BEDFORD, job posted 04/05/25
J K L Building Contractors Ltd
£95/hour
£378/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Loft conversion 20 square meters" - MK40, job posted 09/10/24
Custom Construction (UK) Ltd
£43/hour
£291/day
Need an Extension Builder in MK42? Custom Construction (UK) Ltd has been helping local clients (20 mile radius) with their extension buildering job...
Cousins Builders Ltd
£35/hour
£235/day
Experienced extension builder ready to quote for your work. Cousins Builders Ltd is the best extension builder in MK42. No obligation free quotes a...
G L Wagstaff Building Contractors
£36/hour
£236/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
R G BUILDERS UK LTD
£40/hour
£275/day
Relax... you have found a reliable extension builder in MK42. R G BUILDERS UK LTD is a friendly and reliable company based in MK42 who consider no ...
MH Building
£41/hour
£288/day
Our building services company MH Building have a combined thirty-five years of experience and have been helping customers in Bedfordshire and the s...
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 MK42 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Kempston | £44 | £273 |
| Extension Builders near Bedford | £45 | £278 |
| Extension Builders near South Bedfordshire | £45 | £278 |
| Extension Builders near Ampthill | £38 | £258 |
| Extension Builders near Mid Bedfordshire | £42 | £276 |
| Extension Builders near Biggleswade | £41 | £268 |
| Extension Builders near St Neots | £51 | £318 |
| Extension Builders near Rushden | £34 | £231 |
| Extension Builders near Milton Keynes | £39 | £263 |
| Extension Builders near Bletchley | £39 | £265 |
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 - £26,336
Garden office - £10,336
Granny annexe - £87,336
Build a flat roof extension - £22,336
Convert a Garage - £16,336
Hip to gable loft conversion - £42,336
Convert a bungalow loft - £29,336
Build a dormer loft conversion - £42,336
Build a swimming pool - £81,336
Build a Mansard loft conversion - £52,336
Concrete foundations - £6,586
Underpin a building - £17,836
Two storey extension - £88,504
Convert a basement - £41,280
Side return extension - £45,280
Loft conversion - £36,900
Garage - £18,836
Single storey extension - £61,720
Outbuilding - £10,336
Install an RSJ - £2,536
Build a kitchen extension - £42,336
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