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Ricky Alexander
Trusted and professional extension builder in Brighton And Hove. Experienced in all extension buildering work and keeping within budget and on quot...
Ferguson Building Services Limited is an established and experienced local extension builder in Brighton And Hove. Please contact us for a free, no...
Graeme Davies
Experienced extension builder ready to quote for your work. Graeme Davies Plumbing and Heating is the best extension builder in Brighton And Hove. ...
Need to find an Extension Builder near you for all your extension buildering work?
FIRST FORMAT BUILDING provides a local, trusted extensio...
Need an Extension Builder in Brighton And Hove? East West Refurbishment Limited has been helping local clients (20 mile radius) with their extensio...
Citadel Construction is an established extension buildering business in Brighton And Hove. We come highly recommended and provide competitive quote...
The studio is based on our founder's vision in concept and interior design, Fabio Lauro has long been in the business of creating atmospheres. His ...
Proper Copper DesignWe are a design lead copper homeware company specializing in contemporary handles, taps, showers and accessories. Our products ...
Experienced extension builder ready to quote for your work. Brighton Marina Hand Car Wash is the best extension builder in Brighton And Hove. No ob...
Trusted and professional extension builder in Brighton And Hove. Experienced in all extension buildering work and keeping within budget and on quot...

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 Brighton And Hove by posting a job with HaMuch and we will send it to extension builders in Brighton And Hove.
"Https://www.rightmove.co.uk/properties/1583 6xxx #/?channel=RES_BUY Can you give us a quote for excavation and conversion of this basement based on what you can see in this rightmove advert?" - BRIGHTON, job posted 08/04/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Brighton and Hove | £35 | £252 |
| Convert A Basement near Brighton | £35 | £253 |
| Convert A Basement near Shoreham-by-Sea | £36 | £250 |
| Convert A Basement near Burgess Hill | £36 | £256 |
| Convert A Basement near Lancing | £36 | £249 |
| Convert A Basement near Worthing | £35 | £249 |
| Convert A Basement near Seaford | £34 | £243 |
| Convert A Basement near Haywards Heath | £35 | £256 |
| Convert A Basement near Mid Sussex | £35 | £261 |
| Convert A Basement near Rustington | £35 | £242 |
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 - £17,575

Two storey extension - £88,113

Build a timber frame extension - £26,075

Build a swimming pool - £81,075

Single storey extension - £56,504

Side return extension - £42,346

Install an RSJ - £2,275

Outbuilding - £10,075

Build a Mansard loft conversion - £52,075

Loft conversion - £34,455

Build a kitchen extension - £42,075

Hip to gable loft conversion - £42,075

Granny annexe - £87,075

Garden office - £10,075

Convert a Garage - £16,075

Garage - £18,575

Build a flat roof extension - £22,075

Build a dormer loft conversion - £42,075

Concrete foundations - £6,325

Convert a bungalow loft - £29,075

Convert a basement - £38,346