For pros
Up, up and away 🪜

Loft conversions in HA5, Pinner

Loft conversions in Pinner (HA5): turn the dusty attic into a bedroom, office or hideaway. Tell us about your roof and up to 3 local builders will quote.

✨ Free to use🤝 No obligation🔒 Shared with 3 pros max

✅ What your loft conversions covers in HA5 (Pinner)

  • A survey of your roof space and structure
  • Velux, dormer, hip-to-gable or mansard options
  • Floor strengthening and insulation
  • Stairs, windows and fire safety
  • Electrics, heating and finishing

💷 Typical loft conversions prices in HA5 (Pinner)

Velux (rooflight) conversion£35,000 to £55,000
Dormer loft conversion£55,000 to £85,000
Mansard conversion£70,000 to £110,000
Typical London prices in 2026. A guide only; your quotes will depend on the job.

💬 Questions about loft conversions in Pinner

Is my loft suitable in Pinner?

Most need about 2.2 metres of head height at the highest point. A builder can check this on a quick visit before you commit to anything.

Do I need planning permission?

Many loft conversions fall under permitted development. Flats, conservation areas and bigger roof changes usually need permission. Ask builders when they quote.

How long will it take?

Often 8 to 12 weeks of building work once approvals are in. Your builder will plan it with you.

📍 Loft conversions covering HA5

HA5 covers Pinner in the London Borough of Harrow. Enter your full postcode above and we'll send your job to builders who work in HA5 and nearby, like HA1 (Harrow), HA2 (South Harrow) and HA3 (Kenton, Wealdstone).

Want more than loft conversions?

✨ More jobs for builders in HA5