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Trowel On
Trowel On is an established extension buildering business in SO40. We come highly recommended and provide competitive quotes for your work.
"Two storey and side extension" - SO16, job posted 26/01/26
£33/hr
£241/day
GDS Building & Maintenance Ltd
GDS Building & Maintenance Ltd is an established and experienced local extension builder in SO40. Please contact us for a free, no obligation quote...
"Underpinning" - SOUTHAMPTON, job posted 18/10/25
£34/hr
£241/day
1st Oak Building Preservation & Maintenance
Relax... you have found a reliable extension builder in SO40. 1st Oak Building Preservation & Maintenance is a friendly and reliable company based ...
"Two storey extension 3.6 x 8 x2" - SOUTHAMPTON, job posted 20/06/25
£37/hr
£264/day
Safespec Building Services Limited
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Garden office" - SOUTHAMPT, job posted 21/01/25
£35/hr
£238/day
KT Carpentry & Building Services
Our building services company KT Carpentry & Building Services has been helping customers in Southampton, Winchester, Brockenhurst and Portsmouth b...
"Kitchen extension" - SOUTHAMPTON, job posted 19/10/24
Compare SO40 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Totton | £34 | £243 |
| Extension Builders near Southampton | £34 | £243 |
| Extension Builders near Romsey | £32 | £230 |
| Extension Builders near New Forest | £32 | £245 |
| Extension Builders near Eastleigh | £34 | £244 |
| Extension Builders near Chandler's Ford | £34 | £245 |
| Extension Builders near Hedge End | £34 | £244 |
| Extension Builders near Locks Heath | £33 | £240 |
| Extension Builders near Winchester | £39 | £283 |
| Extension Builders near Fareham | £35 | £250 |
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 - £25,944
Garden office - £9,944
Granny annexe - £86,944
Build a flat roof extension - £21,944
Convert a Garage - £15,944
Hip to gable loft conversion - £41,944
Convert a bungalow loft - £28,944
Build a dormer loft conversion - £41,944
Build a swimming pool - £80,944
Build a Mansard loft conversion - £51,944
Concrete foundations - £6,194
Underpin a building - £17,444
Two storey extension - £87,916
Convert a basement - £36,870
Side return extension - £40,870
Loft conversion - £33,225
Garage - £18,444
Single storey extension - £53,880
Outbuilding - £9,944
Install an RSJ - £2,144
Build a kitchen extension - £41,944
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