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JASON SHARP SHARP BUILDERS
JASON SHARP SHARP BUILDERS is a trusted extension builder serving customers in Watermead and the surrounding area. Contact us to today to get a com...
"Install an RSJ" - HP20, job posted 30/08/26
Plumb & spark
Cody Stevens
Plumb & spark is an established extension buildering business in Watermead. We come highly recommended and provide competitive quotes for your wor...
"Single storey extension" - HP21, job posted 21/08/26
THREE HUNDREDS BUILDING LTD
THREE HUNDREDS BUILDING LTD are here to help customers who need an Extension Builder in Watermead. We offer a competitive rate to complete all your...
"Kitchen extension" - HP21, job posted 27/12/25
STEPHEN PARKIN BUILDING CONTRA
STEPHEN PARKIN BUILDING CONTRA is an established extension buildering business in Watermead. We come highly recommended and provide competitive quo...
"RSJ installation" - HP21, job posted 26/10/25
R.O Allum & Sons
We are a family run business that has been trading since 1976 in Tring, Berkhamsted and surrounding areas.
"Single storey extension - 2m wide, 8M long" - HP19, job posted 04/07/24
A J Shaw Building Services
Watermead, HP20
Relax... you have found a reliable extension builder in Watermead. A J Shaw Building Services is a friendly and reliable company based in Watermead...
ADC Landscape And Garden Maintenance Contractors
We are ADC Landscaping & Gardening, owned and run by Ashley Collier. We are a family business based in Aylesbury, Buckinghamshire, and cover all as...
C HORWOOD CONSTRUCTION
Trusted and professional extension builder in Watermead. Experienced in all extension buildering work and keeping within budget and on quote. C HOR...
D M B E BUILDPLUS
Watermead, HP20
D M B E BUILDPLUS is an established and experienced local extension builder in Watermead. Please contact us for a free, no obligation quote and com...
Just Lofts
Just Lofts are here to help customers who need an Extension Builder in Watermead. We offer a competitive rate to complete all your extension builde...
AMG Roofing (Bucks) Ltd
AMG Roofing (Bucks) Ltd is owned by Ashley Gibson, a small, friendly, family run business that began in 2020, as a result of the Pandemic and an ac...
£35/hr
£246/day
VICTOR KING CONSTRUCTION
Experienced extension builder ready to quote for your work. VICTOR KING CONSTRUCTION is the best extension builder in Watermead. No obligation free...
£50/hr
£278/day
G P Renovate Building Services Ltd
Experienced extension builder ready to quote for your work. G P Renovate Building Services Ltd is the best extension builder in Watermead. No oblig...
£36/hr
£232/day
Paul Brennan Building Services
Paul Brennan Building Services is an established extension buildering business in Watermead. We come highly recommended and provide competitive quo...
£39/hr
£265/day
Wp renovations
Specialising in all finishing trades from start to finish all in house
£48/hr
£323/day
Charlton Design & Build
Experienced extension builder ready to quote for your work. Charlton Design & Build is the best extension builder in Watermead. No obligation free ...
£43/hr
£285/day
BUILDRIGHT (UK) LTD
Trusted and professional extension builder in Watermead. Experienced in all extension buildering work and keeping within budget and on quote. BUILD...
£42/hr
£281/day
Davies Brickwork Ltd
The Design, Build, and Development Company for All Types of Spaces Davies Construction and Brickwork Limited is a professional construction firm sp...
£37/hr
£245/day
Bellwood Homes
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
£43/hr
£294/day
SELFBUILD SOLUTIONS COM LTD
Trusted and professional extension builder in Watermead. Experienced in all extension buildering work and keeping within budget and on quote. SELFB...
Compare Watermead extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Aylesbury | £42 | £270 |
| Extension Builders near Aylesbury Vale | £36 | £246 |
| Extension Builders near Leighton Buzzard | £38 | £270 |
| Extension Builders near Berkhamsted | £41 | £273 |
| Extension Builders near Chesham | £42 | £277 |
| Extension Builders near Hazlemere | £40 | £272 |
| Extension Builders near Dunstable | £41 | £274 |
| Extension Builders near Bletchley | £39 | £265 |
| Extension Builders near Wycombe | £40 | £271 |
| Extension Builders near High Wycombe | £39 | £272 |
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 - £26,224

Garden office - £10,224

Granny annexe - £87,224

Build a flat roof extension - £22,224

Convert a Garage - £16,224

Hip to gable loft conversion - £42,224

Convert a bungalow loft - £29,224

Build a dormer loft conversion - £42,224

Build a swimming pool - £81,224

Build a Mansard loft conversion - £52,224

Concrete foundations - £6,474

Underpin a building - £17,724

Two storey extension - £88,336

Convert a basement - £40,020

Side return extension - £44,020

Loft conversion - £35,850

Garage - £18,724

Single storey extension - £59,480

Outbuilding - £10,224

Install an RSJ - £2,424

Build a kitchen extension - £42,224
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