Find affordable extension builders near Bletchley
- Local extension builders Bletchley
- Job estimates from extension builders near you
- Compare Bletchley extension builders rates
| Low | Average | High |
|---|---|---|
| £20 | £33 | £40 |
| Average hourly rate from 58 extension builders in Bletchley ex VAT or callout | ||
Average Bletchley extension builder hourly rate is £34
Range from the cheapest, mostly independent, £25 per hour and £200 per day () to the dearest, normally the best, £37 per hour and £250 per day (Building Better Spaces).
Comparing hourly and daily rates of extension builders gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Click 'Get quotes' and describe your job and we will send it to your local extension builders for FREE.

Local extension builders Bletchley
Masters Construction
£30/hour
£250/day
Extension Builder in Leighton Buzzard, LU7. Working within a 20 mile radius.
I have 34 years experience in the building trade. I do a lot of repeat work as my customers are pleased with the quality of the work & the politeness of my staff.
I can put you in touch with an architect & structural engineer &a...
"Timber frame first floor extension above the garage, with outer leaf brickwork and tiled pitched roof above."
A, MK6
Building Better Spaces
£37/hour
£248/day
Extension Builder in Buckinghamshire, MK2. Working within a 20 mile radius.
At Building Better Spaces we have been fitting bespoke bathrooms for ten years.We pride ourselves on being the go-to bathroom fitters for discerning customers in the Milton Keynes area.It is a well-known fact that bathrooms sell ho...
"Kitchen extension"
MILTON KEYNES
BURCROFT BUILDERS
£35/hour
£236/day
BURCROFT BUILDERS is an established and experienced local extension builder in Bletchley. Please contact us for a free, no obligation quote and competitive rates. Covering a 20 mile radius.
"Garage conversion to a kitchen "
CONNIE, MILTON KEYNES
SAO Builders Ltd
£33/hour
£208/day
Extension Builder in Bletchley, MK3. Working within a 20 mile radius.
SAO Builders Ltd is an established business in Bletchley. We come highly recommended and provide competitive quotes for your work.
"Garage conversion"
MILTON KEYNES
£25/hour
£200/day
Extension Builder in Bletchley, MK3. Covering 20 mile radius.
is a trusted Extension Builder serving customers in Bletchley and the surrounding area. Contact us to today to get a competitive quote for work in Bletchley. We offer value for money and quality to our customers, we pride ourselves on the positive feedback.
"Single storey extension"
MILTON KEYNES
S AND M BUILDERS
£34/hour
£236/day
Extension Builder in Bletchley, MK3. Covering 20 mile radius.
S AND M BUILDERS is a trusted Extension Builder serving customers in Bletchley and the surrounding area. Contact us to today to get a competitive quote for work in Bletchley. We offer value for money and quality to our customers, we pride ourselves on the positive feedback.
"Loft conversion with dormer"
ANTONIO, MK3
Go-Large Design & Build Ltd
£34/hour
£225/day
Need to find an Extension Builder near you for all your work?
Go-Large Design & Build Ltd provides a local, trusted service in and around Bletchley. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
"Outbuilding "
MK3
GD RAWLINGS BUILDING
£35/hour
£237/day
Relax... you have found a reliable extension builder in Bletchley. GD RAWLINGS BUILDING is a friendly and reliable company based in Bletchley who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
"Loft conversion Velux conversion "
POOJA, MILTON KEYNES
A J S Building Work
£34/hour
£236/day
A J S Building Work are extension builders in Bletchley who work within a 20 mile radius. Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in Bletchley and testimonials.
"Loft conversion"
MILTON KEYNES
Custom Glaze
£34/hour
£225/day
Extension Builder in Buckinghamshire, MK3. Working within a 20 mile radius.
Established over 34 years ago, we are a family run and independent business committed to our founding principle of providing our customers with high-quality products, professional design and installation and after-sales service, all guaranteed and...
Upright Office Interiors
£34/hour
£225/day
Upright Office Interiors is an established and experienced local extension builder in Bletchley. Please contact us for a free, no obligation quote and competitive rates. Covering a 20 mile radius.
Highland Homes & Gardens
£34/hour
£226/day
Extension Builder in Bletchley, MK4.
Need an Extension Builder in Bletchley? Highland Homes & Gardens has been helping local clients (20 mile radius) with their jobs for many years. Get a quote today.
One click contractors ltd
£34/hour
£225/day
Extension Builder in Milton keynes, MK4. Working within a 20 mile radius.
One Click Contractors Ltd are plumbing, heating and electrical specialists, providing Plumbers and electricians in Milton Keynes . Whether it be Domestic or Commercial Plumbers, we are here to help. Based in Milton Keynes we support, Leicestershir...
Areas Covered - Milton Keynes, Northamptonshire, Luton
£34/hour
£225/day
Extension Builder in Milton Keynes, MK4. Working within a 20 mile radius.
Areas Covered - Milton Keynes, Luton, bedford
Master contractors ltd
£34/hour
£226/day
Extension Builder in Mton Keynes, MK4. Working within a 20 mile radius.
Areas Covered - Milton keynes
Dallcompanies Limited
£36/hour
£247/day
Extension Builder in Buckinghamshire, MK4. Working within a 20 mile radius.
Our building services company Dallcompanies Limited was established in May 2023, but have been helping customers in Milton Keynes and the surrounding area for over 10 years, providing professional, trustworthy building services.We know it ...
AJI Builders
£34/hour
£226/day
Extension Builder in Bletchley, LU5. Covering 20 mile radius.
AJI Builders is a trusted Extension Builder serving customers in Bletchley and the surrounding area. Contact us to today to get a competitive quote for work in Bletchley. We offer value for money and quality to our customers, we pride ourselves on the positive feedback.
Tailor Made Builders
£34/hour
£236/day
Relax... you have found a reliable extension builder in Bletchley. Tailor Made Builders is a friendly and reliable company based in Bletchley who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
Atkins Home Improvements
£31/hour
£205/day
Need to find an Extension Builder near you for all your work?
Atkins Home Improvements provides a local, trusted service in and around Bletchley. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
OD Building Maintenance
£34/hour
£225/day
OD Building Maintenance are here to help customers who need an Extension Builder in Bletchley. We offer a competitive rate to complete all your jobs to professional standards.
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 Bletchley extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Bletchley | £34 | £227 |
| Extension Builders near Milton Keynes | £33 | £226 |
| Extension Builders near Leighton Buzzard | £33 | £235 |
| Extension Builders near Ampthill | £31 | £214 |
| Extension Builders near Aylesbury Vale | £34 | £230 |
| Extension Builders near Mid Bedfordshire | £34 | £225 |
| Extension Builders near Dunstable | £36 | £235 |
| Extension Builders near Aylesbury | £36 | £236 |
| Extension Builders near Kempston | £37 | £230 |
| Extension Builders near South Bedfordshire | £38 | £233 |
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.

Timber frame extension - £25,816

Garden office - £9,816

Granny annexe - £86,816

Flat roof extension - £21,816

Garage conversion - £15,816

Hip to gable loft conversion - £41,816

Bungalow loft conversion - £28,816

Dormer loft conversion - £41,816

Swimming pool - £80,816

Mansard loft conversion - £51,816

Concrete foundation - £6,066

Underpinning - £17,316

Two storey extension - £87,724

Basement conversion - £35,430

Side return extension - £39,430

Loft conversion - £32,025

Garage - £18,316

Single storey extension - £51,320

Outbuilding - £9,816

RSJ installation - £2,016

Kitchen extension - £41,816
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