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Select your affordable SO40 extension builder
Trowel On is an established extension buildering business in SO40. We come highly recommended and provide competitive quotes for your work.
From £33,075
GDS Building & Maintenance Ltd is an established and experienced local extension builder in SO40. Please contact us for a free, no obligation quote...
From £33,075
Relax... you have found a reliable extension builder in SO40. 1st Oak Building Preservation & Maintenance is a friendly and reliable company based ...
From £34,800
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £32,850
Our building services company KT Carpentry & Building Services has been helping customers in Southampton, Winchester, Brockenhurst and Portsmouth b...

Comparing extension builders estimates for Loft conversion 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 - Get rates and quotes for the cost of a loft conversion in SO40 by posting your job to extension builders in SO40.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Totton | £34 | £243 |
| Loft Conversion near Southampton | £34 | £243 |
| Loft Conversion near Romsey | £32 | £230 |
| Loft Conversion near New Forest | £32 | £245 |
| Loft Conversion near Eastleigh | £34 | £244 |
| Loft Conversion near Chandler's Ford | £34 | £245 |
| Loft Conversion near Hedge End | £34 | £244 |
| Loft Conversion near Locks Heath | £33 | £240 |
| Loft Conversion near Winchester | £39 | £283 |
| Loft Conversion near Fareham | £35 | £250 |
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.

Underpin a building - £17,446

Two storey extension - £87,918

Build a timber frame extension - £25,946

Build a swimming pool - £80,946

Single storey extension - £53,912

Side return extension - £40,888

Install an RSJ - £2,146

Outbuilding - £9,946

Build a Mansard loft conversion - £51,946

Loft conversion - £33,240

Build a kitchen extension - £41,946

Hip to gable loft conversion - £41,946

Granny annexe - £86,946

Garden office - £9,946

Convert a Garage - £15,946

Garage - £18,446

Build a flat roof extension - £21,946

Build a dormer loft conversion - £41,946

Concrete foundations - £6,196

Convert a bungalow loft - £28,946

Convert a basement - £36,888