From £39,300
Trusted and professional extension builder in BN6. Experienced in all extension buildering work and keeping within budget and on quote. W&S BUILDIN...
From £35,070
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £34,530
Relax... you have found a reliable extension builder in BN6. Atlas Installations is a friendly and reliable company based in BN6 who consider no jo...
From £38,220
JG Brickwork Services Limited is an established extension buildering business in BN6. We come highly recommended and provide competitive quotes for...
From £15,180
Ferguson Building Services Limited is an established and experienced local extension builder in BN6. Please contact us for a free, no obligation qu...
From £38,580
Experienced extension builder ready to quote for your work. Miles Better Builds is the best extension builder in BN6. No obligation free quotes and...
From £35,790
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £44,250
Rjscarpentryconstruction is a well established company with over 30 years of experience in the carpentry and construction industries
From £41,550
TOLLEY CARPENTRY is an established extension buildering business in BN6. We come highly recommended and provide competitive quotes for your work.
From £37,680
Trusted and professional extension builder in BN6. Experienced in all extension buildering work and keeping within budget and on quote. Good Constr...

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 BN6 by posting a job with HaMuch and we will send it to extension builders in BN6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Burgess Hill | £36 | £240 |
| Convert A Basement near Haywards Heath | £35 | £256 |
| Convert A Basement near Brighton and Hove | £35 | £251 |
| Convert A Basement near Mid Sussex | £35 | £261 |
| Convert A Basement near Brighton | £35 | £251 |
| Convert A Basement near Shoreham-by-Sea | £36 | £250 |
| Convert A Basement near Lancing | £37 | £251 |
| Convert A Basement near Horsham | £38 | £265 |
| Convert A Basement near Worthing | £35 | £251 |
| Convert A Basement near Crawley | £38 | £255 |
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 - £17,368

Two storey extension - £87,802

Build a timber frame extension - £25,868

Build a swimming pool - £80,868

Single storey extension - £52,360

Side return extension - £40,015

Install an RSJ - £2,068

Outbuilding - £9,868

Build a Mansard loft conversion - £51,868

Loft conversion - £32,513

Build a kitchen extension - £41,868

Hip to gable loft conversion - £41,868

Granny annexe - £86,868

Garden office - £9,868

Convert a Garage - £15,868

Garage - £18,368

Build a flat roof extension - £21,868

Build a dormer loft conversion - £41,868

Concrete foundations - £6,118

Convert a bungalow loft - £28,868

Convert a basement - £36,015