Extension builder estimates (based on hourly rates) to build a single storey extension in Birkenhead
Range from the cheapest single storey extension £38800 (Eco Construction Systems Ltd based in CH42) to the dearest single storey extension £42160 (Oxygen Property Partners based in L8).
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 Birkenhead by posting a job with HaMuch and we will send it to extension builders in Birkenhead.
Recent Jobs
20/01/2024
Extension Builder near Liverpool
Single storey extension
03/04/2024
Extension Builder near Wirral
Demolish Victorian outrigger kitchen 4.5m x 3m replace with flat roof and gallery - 5m x 5m infill on semi detached plans drawn by architect planning underway
Estimates for common extension builder jobs in Birkenhead;
| Job | Estimate |
| Underpinning a house | £17021 |
| Build a two storey extension | £87281 |
| Build a timber frame extension | £25521 |
| Install a swimming pool | £80521 |
| Cost to build a single storey extension | £40413 |
| Cost to build a side return extension | £32107 |
| Install an RSJ | £1721 |
| Build an outbuilding | £9521 |
| Build a mansard loft conversion | £51521 |
| Cost of a loft conversion | £29256 |
| Build a kitchen extension | £41521 |
| Build a hip to gable loft conversion | £41521 |
| Build a granny annexe | £86521 |
| Build a garden office | £9521 |
| Convert a garage | £15521 |
| Build a new garage | £18021 |
| Build a flat roof extension | £21521 |
| Build a dormer loft conversion | £41521 |
| Lay a concrete foundation | £5771 |
| Convert a bungalow loft | £28521 |
| Basement conversion cost | £32107 |