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Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need an Extension Builder in Knowsley? KMC Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
G. Finnigan Builders is an established extension buildering business in Knowsley. We come highly recommended and provide competitive quotes for you...
Mark Robinson
Trusted and professional extension builder in Knowsley. Experienced in all extension buildering work and keeping within budget and on quote. M L R ...
J.M.C Building Services is a trusted extension builder serving customers in Knowsley and the surrounding area. Contact us to today to get a competi...
Need an Extension Builder in Knowsley? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for man...
Peter Gallagher
Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in Knowsley. No obligation free q...
CJ Construction are here to help customers who need an Extension Builder in Knowsley. We offer a competitive rate to complete all your extension bu...
Liverpool Builder is an established extension buildering business in Knowsley. We come highly recommended and provide competitive quotes for your w...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Comparing extension builders estimates for a Convert a basement 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 for the cost to convert a basement in Knowsley by posting a job with HaMuch and we will send it to extension builders in Knowsley.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Knowsley | £31 | £222 |
| Convert A Basement near Prescot | £31 | £223 |
| Convert A Basement near Huyton with Roby | £31 | £225 |
| Convert A Basement near Kirkby | £31 | £224 |
| Convert A Basement near St Helens | £31 | £224 |
| Convert A Basement near Widnes | £31 | £220 |
| Convert A Basement near Halton | £31 | £220 |
| Convert A Basement near Bootle | £33 | £228 |
| Convert A Basement near Liverpool | £31 | £222 |
| Convert A Basement near Maghull | £34 | £231 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,250

Two storey extension - £87,624

Build a timber frame extension - £25,750

Build a swimming pool - £80,750

Single storey extension - £49,992

Side return extension - £38,683

Install an RSJ - £1,950

Outbuilding - £9,750

Build a Mansard loft conversion - £51,750

Loft conversion - £31,403

Build a kitchen extension - £41,750

Hip to gable loft conversion - £41,750

Granny annexe - £86,750

Garden office - £9,750

Convert a Garage - £15,750

Garage - £18,250

Build a flat roof extension - £21,750

Build a dormer loft conversion - £41,750

Concrete foundations - £6,000

Convert a bungalow loft - £28,750

Convert a basement - £34,683