Builders in N20, Whetstone
Planning an extension, loft conversion or renovation in Whetstone (N20)? Describe the project and up to 3 local builders will get in touch to quote.
📍 Builders covering N20
N20 covers Whetstone in the London Borough of Barnet. Enter your full postcode above and we'll send your job to builders who work in N20 and nearby.
💷 Typical builder prices in N20 (Whetstone)
| Single-storey rear extension | £2,800 to £4,000 per m² |
| Dormer loft conversion | £55,000 to £85,000 |
| Kitchen refit (labour and fitting) | £8,000 to £25,000 |
| General builder day rate | £250 to £350 |
💬 Questions about hiring a builder in Whetstone
Do I need planning permission in Whetstone?
Many rear extensions and loft conversions fall under permitted development, so they don't need full planning permission. Rules are stricter in conservation areas and for flats. Check with the council or ask builders when they quote.
How many quotes should I get?
Three is a good number for building work. It gives you a sense of the fair price and lets you compare how each builder plans the job, not just the total.
What should a builder's quote include?
A written breakdown of labour and materials, a start date and timeline, a payment schedule tied to stages of work, and who is responsible for skips, waste and making good.