Extension builder estimates (based on hourly rates) to build a single storey extension in MK13
Range from the cheapest single storey extension £34000 (JJ's gardening services based in MK17) to the dearest single storey extension £50320 (GDM Electrical Buckinghamshire Ltd based in LU7).
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 MK13 by posting a job with HaMuch and we will send it to extension builders in MK13.
Estimates for common extension builder jobs in MK13;
| Job | Estimate |
| Underpinning a house | £17303 |
| Build a two storey extension | £87704 |
| Build a timber frame extension | £25803 |
| Install a swimming pool | £80803 |
| Cost to build a single storey extension | £46058 |
| Cost to build a side return extension | £35282 |
| Install an RSJ | £2003 |
| Build an outbuilding | £9803 |
| Build a mansard loft conversion | £51803 |
| Cost of a loft conversion | £31902 |
| Build a kitchen extension | £41803 |
| Build a hip to gable loft conversion | £41803 |
| Build a granny annexe | £86803 |
| Build a garden office | £9803 |
| Convert a garage | £15803 |
| Build a flat roof extension | £21803 |
| Build a dormer loft conversion | £41803 |
| Lay a concrete foundation | £6053 |
| Convert a bungalow loft | £28803 |
| Basement conversion cost | £35282 |