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Trowel On is an established extension buildering business in SO40. We come highly recommended and provide competitive quotes for your work.
From £41,928
GDS Building & Maintenance Ltd is an established and experienced local extension builder in SO40. Please contact us for a free, no obligation quote...
From £41,928
Relax... you have found a reliable extension builder in SO40. 1st Oak Building Preservation & Maintenance is a friendly and reliable company based ...
From £42,112
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £41,904
Our building services company KT Carpentry & Building Services has been helping customers in Southampton, Winchester, Brockenhurst and Portsmouth b...

In SO40, prices for dormer loft conversions range from £41,856 (Trowel On based in SO40) to £42,112 (Safespec Building Services Limited based in SO40), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in SO40. Post your job on HaMuch now and we'll put you in touch with available extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Dormer Loft Conversion near Totton | £34 | £243 |
| Build A Dormer Loft Conversion near Southampton | £34 | £243 |
| Build A Dormer Loft Conversion near Romsey | £32 | £230 |
| Build A Dormer Loft Conversion near New Forest | £32 | £245 |
| Build A Dormer Loft Conversion near Eastleigh | £34 | £244 |
| Build A Dormer Loft Conversion near Chandler's Ford | £34 | £245 |
| Build A Dormer Loft Conversion near Hedge End | £34 | £244 |
| Build A Dormer Loft Conversion near Locks Heath | £33 | £240 |
| Build A Dormer Loft Conversion near Winchester | £39 | £283 |
| Build A Dormer 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