Extension builder estimates (based on hourly rates) to build a single storey extension in SE26
Range from the cheapest single storey extension £42000 (RCB Group Design & Build based in SE21) to the dearest single storey extension £48880 (By design - interior styling and remodelling based in Se26).
Comparing extension builders estimates for fitting a downstairs toilet 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 to build a single storey extension in SE26 by posting a job with HaMuch and we will send it to extension builders in SE26.
Estimates for common extension builder jobs in SE26;
| Job | Estimate |
| Underpinning a house | £17368 |
| Build a two storey extension | £87802 |
| Build a timber frame extension | £25868 |
| Install a swimming pool | £80868 |
| Cost to build a single storey extension | £47357 |
| Cost to build a side return extension | £36013 |
| Install an RSJ | £2068 |
| Build an outbuilding | £9868 |
| Build a mansard loft conversion | £51868 |
| Cost of a loft conversion | £32511 |
| Build a kitchen extension | £41868 |
| Build a hip to gable loft conversion | £41868 |
| Build a granny annexe | £86868 |
| Build a garden office | £9868 |
| Convert a garage | £15868 |
| Build a new garage | £18368 |
| Build a flat roof extension | £21868 |
| Build a dormer loft conversion | £41868 |
| Lay a concrete foundation | £6118 |
| Convert a bungalow loft | £28868 |
| Basement conversion cost | £36013 |