Relax... you have found a reliable extension builder in OX12. CHF CONSTRUCTION is a friendly and reliable company based in OX12 who consider no job...
From £88,300
WJW Home Improvements - Friendly and professional builders. We specialize in extensions, loft conversions, and big renovation projects. Our motto i...
From £88,336
SH Carpentry and Construction Ltd is a professional, reliable and friendly carpentry, joinery and general construction company working in and aroun...

Costs range from £88,192 (CHF CONSTRUCTION based in OX12) to £88,336 (SH Carpentry & Construction Limited based in OX12), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Vale of White Horse | £36 | £271 |
| Two Storey Extension near Didcot | £36 | £266 |
| Two Storey Extension near Abingdon-on-Thames | £35 | £258 |
| Two Storey Extension near Oxford | £37 | £261 |
| Two Storey Extension near Witney | £32 | £244 |
| Two Storey Extension near Newbury | £37 | £262 |
| Two Storey Extension near Stratton St Margaret | £32 | £238 |
| Two Storey Extension near South Oxfordshire | £36 | £253 |
| Two Storey Extension near Swindon | £31 | £238 |
| Two Storey Extension near Thatcham | £38 | £266 |
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 - £17,684

Two storey extension - £88,276

Build a timber frame extension - £26,184

Build a swimming pool - £81,184

Single storey extension - £58,680

Side return extension - £43,570

Install an RSJ - £2,384

Outbuilding - £10,184

Build a Mansard loft conversion - £52,184

Loft conversion - £35,475

Build a kitchen extension - £42,184

Hip to gable loft conversion - £42,184

Granny annexe - £87,184

Garden office - £10,184

Convert a Garage - £16,184

Garage - £18,684

Build a flat roof extension - £22,184

Build a dormer loft conversion - £42,184

Concrete foundations - £6,434

Convert a bungalow loft - £29,184

Convert a basement - £39,570