From £10,352
Distinct Build Ltd. has been built purely on referrals. We care about our client's ideas and needs and work tirelessly to deliver their dreams.
...From £10,176
Beech is an established and experienced local extension builder in Winchmore Hill. Please contact us for a free, no obligation quote and competitiv...
From £10,344
Be Illuminated are here to help customers who need an Extension Builder in Winchmore Hill. We offer a competitive rate to complete all your extensi...
From £10,208
Relax... you have found a reliable extension builder in Winchmore Hill. M P TIMLIN (CONSTRUCTION) LTD is a friendly and reliable company based in W...
From £10,152
Hamilton Refurbishments is an established and experienced local extension builder in Winchmore Hill. Please contact us for a free, no obligation qu...
From £10,336
Relax... you have found a reliable extension builder in Winchmore Hill. J MCNAMEE J & J BUILDERS is a friendly and reliable company based in Winchm...
From £10,256
Need an Extension Builder in Winchmore Hill? Mitre Peak Lofts Ltd has been helping local clients (10 mile radius) with their extension buildering j...
From £10,216
We are passionate about building bespoke homes using quality products that create unique features both internally and externally.
From £10,288
Welcome to Velonia interiors Ltd my name is James Martin and I’m the director myself and my team have many years experience I will use subcontrac...
From £10,392
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Outbuilding costs in Winchmore Hill range from the cheapest of £10,152 (Hamilton Refurbishments based in WD3) to the dearest of £10,392 (Jesson ladscaping and construction based in hp15), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in Winchmore Hill by posting a job with HaMuch and we will send it to extension builders.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Outbuilding near Chesham | £42 | £277 |
| Outbuilding near Hazlemere | £40 | £272 |
| Outbuilding near Gerrards Cross | £43 | £282 |
| Outbuilding near Rickmansworth | £42 | £278 |
| Outbuilding near Berkhamsted | £41 | £263 |
| Outbuilding near Dacorum | £42 | £269 |
| Outbuilding near High Wycombe | £39 | £272 |
| Outbuilding near Hemel Hempstead | £42 | £270 |
| Outbuilding near Wycombe | £39 | £271 |
| Outbuilding near Watford | £43 | £278 |
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 - £17,772

Two storey extension - £88,408

Build a timber frame extension - £26,272

Build a swimming pool - £81,272

Single storey extension - £60,440

Side return extension - £44,560

Install an RSJ - £2,472

Outbuilding - £10,272

Build a Mansard loft conversion - £52,272

Loft conversion - £36,300

Build a kitchen extension - £42,272

Hip to gable loft conversion - £42,272

Granny annexe - £87,272

Garden office - £10,272

Convert a Garage - £16,272

Garage - £18,772

Build a flat roof extension - £22,272

Build a dormer loft conversion - £42,272

Concrete foundations - £6,522

Convert a bungalow loft - £29,272

Convert a basement - £40,560