From £35,070
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Comparing extension builders estimates for a Convert a basement 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 to convert a basement in WA8 by posting a job with HaMuch and we will send it to extension builders in WA8.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Widnes | £31 | £220 |
| Convert A Basement near Halton | £31 | £220 |
| Convert A Basement near Runcorn | £33 | £228 |
| Convert A Basement near Huyton with Roby | £31 | £225 |
| Convert A Basement near Prescot | £31 | £223 |
| Convert A Basement near Knowsley | £31 | £222 |
| Convert A Basement near St Helens | £31 | £224 |
| Convert A Basement near Warrington | £31 | £222 |
| Convert A Basement near Newton-le-Willows | £31 | £221 |
| Convert A Basement near Golborne | £30 | £222 |
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 - £17,424

Two storey extension - £87,886

Build a timber frame extension - £25,924

Build a swimming pool - £80,924

Single storey extension - £53,480

Side return extension - £40,645

Install an RSJ - £2,124

Outbuilding - £9,924

Build a Mansard loft conversion - £51,924

Loft conversion - £33,038

Build a kitchen extension - £41,924

Hip to gable loft conversion - £41,924

Granny annexe - £86,924

Garden office - £9,924

Convert a Garage - £15,924

Garage - £18,424

Build a flat roof extension - £21,924

Build a dormer loft conversion - £41,924

Concrete foundations - £6,174

Convert a bungalow loft - £28,924

Convert a basement - £36,645