Extension builder estimates (based on hourly rates) to build a single storey extension in Guildford
Range from the cheapest single storey extension £47120 (Cortec Ltd based in GU7) to the dearest single storey extension £82000 (Websites 4 Trades based in GU7).
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 Guildford by posting a job with HaMuch and we will send it to extension builders in Guildford.
Estimates for common extension builder jobs in Guildford;
| Job | Estimate |
| Underpinning a house | £17545 |
| Build a two storey extension | £88068 |
| Build a timber frame extension | £26045 |
| Install a swimming pool | £81045 |
| Cost to build a single storey extension | £50902 |
| Cost to build a side return extension | £38008 |
| Install an RSJ | £2245 |
| Build an outbuilding | £10045 |
| Build a mansard loft conversion | £52045 |
| Cost of a loft conversion | £34173 |
| Build a kitchen extension | £42045 |
| Build a hip to gable loft conversion | £42045 |
| Build a granny annexe | £87045 |
| Build a garden office | £10045 |
| Convert a garage | £16045 |
| Build a flat roof extension | £22045 |
| Build a dormer loft conversion | £42045 |
| Lay a concrete foundation | £6295 |
| Convert a bungalow loft | £29045 |
| Basement conversion cost | £38008 |