Extension builder estimates (based on hourly rates) to build a single storey extension in Hemel Hempstead
Range from the cheapest single storey extension £11600 (Hertfordshire brickwork based in Hp1) to the dearest single storey extension £58000 (Absolute kitchen and bathroom based in HP3).
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 Hemel Hempstead by posting a job with HaMuch and we will send it to extension builders in Hemel Hempstead.
Estimates for common extension builder jobs in Hemel Hempstead;
| Job | Estimate |
| Underpinning a house | £17350 |
| Build a two storey extension | £87775 |
| Build a timber frame extension | £25850 |
| Install a swimming pool | £80850 |
| Cost to build a single storey extension | £47005 |
| Cost to build a side return extension | £35815 |
| Install an RSJ | £2050 |
| Build an outbuilding | £9850 |
| Build a mansard loft conversion | £51850 |
| Cost of a loft conversion | £32346 |
| Build a kitchen extension | £41850 |
| Build a hip to gable loft conversion | £41850 |
| Build a granny annexe | £86850 |
| Build a garden office | £9850 |
| Convert a garage | £15850 |
| Build a new garage | £18350 |
| Build a flat roof extension | £21850 |
| Build a dormer loft conversion | £41850 |
| Lay a concrete foundation | £6100 |
| Convert a bungalow loft | £28850 |
| Basement conversion cost | £35815 |