From £43,840
Need to find an Extension Builder near you for all your extension buildering work?
JAYEM BUILDING SERVICES LTD provides a local, trusted ex...
From £43,750
TB Projects is an established extension buildering business in HP9. We come highly recommended and provide competitive quotes for your work.
From £41,050
Relax... you have found a reliable extension builder in HP9. Kebbell Development Limited is a friendly and reliable company based in HP9 who consid...
From £45,370
Be Illuminated are here to help customers who need an Extension Builder in HP9. We offer a competitive rate to complete all your extension builderi...
From £45,010
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £40,420
Belvedere is an established and experienced local extension builder in HP9. Please contact us for a free, no obligation quote and competitive rates...
From £43,300
Need to find an Extension Builder near you for all your extension buildering work?
Loudwater Building Services provides a local, trusted ex...
From £45,280
Relax... you have found a reliable extension builder in HP9. J MCNAMEE J & J BUILDERS is a friendly and reliable company based in HP9 who consider ...
From £43,480
Experienced extension builder ready to quote for your work. G C JONES CONSTRUCTION CO LTD is the best extension builder in HP9. No obligation free ...
From £46,000
E E Construction is an established extension buildering business in HP9. We come highly recommended and provide competitive quotes for your work.

Comparing extension builders estimates for Side return extension 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 a side return extention by posting your job to extension builders in HP9.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Side Return Extension near Gerrards Cross | £37 | £244 |
| Side Return Extension near Hazlemere | £34 | £235 |
| Side Return Extension near High Wycombe | £34 | £237 |
| Side Return Extension near Slough | £36 | £238 |
| Side Return Extension near Maidenhead | £36 | £236 |
| Side Return Extension near Rickmansworth | £37 | £241 |
| Side Return Extension near Chesham | £36 | £237 |
| Side Return Extension near Wycombe | £34 | £234 |
| Side Return Extension near Windsor & Maidenhead | £36 | £238 |
| Side Return Extension near Hillingdon | £56 | £240 |
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 - £17,700

Two storey extension - £88,300

Build a timber frame extension - £26,200

Build a swimming pool - £81,200

Single storey extension - £59,000

Side return extension - £43,750

Install an RSJ - £2,400

Outbuilding - £10,200

Build a Mansard loft conversion - £52,200

Loft conversion - £35,625

Build a kitchen extension - £42,200

Hip to gable loft conversion - £42,200

Granny annexe - £87,200

Garden office - £10,200

Convert a Garage - £16,200

Garage - £18,700

Build a flat roof extension - £22,200

Build a dormer loft conversion - £42,200

Concrete foundations - £6,450

Convert a bungalow loft - £29,200

Convert a basement - £39,750