H1: House Extension North London – Professional Extension Builders | LASTING LTD

Expand your home with a high-quality house extension in North London. LASTING LTD specialises in single-storey, double-storey, side return and wrap-around extensions — complete with full structural works, foundations, roofing and premium interior finishing.

NHBC-registered • Fully insured • Free site visit & quote

⭐ Why Choose LASTING LTD for House Extensions in North London?

• 10+ years building extensions across North London

• Structural works included (RSJ beams, steel frames)

• Foundations, drainage, brickwork, roofing

• Full project management from start to finish

• Transparent costs with detailed breakdowns

• Kitchen & bathroom installation available

• £5M Public Liability Insurance

• Clean, fast and reliable team

👉 CTA: Get a Free Extension Quote in North London

Types of House Extensions We Build

1. Rear Extension

Ideal for:

• Open-plan kitchens

• Dining areas

• Larger living spaces

2. Side Return Extension

Perfect for Victorian/Edwardian houses in North London.
Creates wider kitchens and more natural light.

3. Double-Storey Extension

Adds maximum value and space:

• New bedrooms

• Additional bathrooms

• Extended living areas

4. Wrap-Around Extension

Combines rear + side extension into one large open space.

Great for:

• Luxury kitchen-diners

• Open-plan living

• Multi-room expansions

What’s Included in an Extension Build

✔ Groundworks & Structure

• Excavation & foundations

• Drainage installation

• Concrete slabs

• Structural steel beams (RSJ)

• Load-bearing wall removal

• Brickwork and blockwork

✔ Exterior Works

• Roofing

• Insulation

• Windows & doors

• Skylights

• Rendering or cladding

✔ Interior Works

• Plumbing & heating

• Electrical installation

• Plastering & decorating

• Flooring & carpentry

• Kitchen & bathroom fitting

👉 All work meets Building Regulations.

House Extension Cost in North London (2025)

Typical pricing:

• Single-storey extension: £35,000–£65,000

• Double-storey extension: £60,000–£120,000

• Side return extension: £25,000–£45,000

• Wrap-around extension: £70,000–£140,000

Includes:
✔ labour
✔ materials
✔ structural steel
✔ project management
✔ interior finishing

👉 CTA: Request a Personalised Quote

Areas We Serve in North London

We build extensions in:

• Enfield

• Barnet

• Haringey

• Finchley

• Muswell Hill

• Wood Green

• Tottenham

• Palmers Green

• Winchmore Hill

• Edmonton

• Whetstone

• Highgate

• Alexandra Palace

• Southgate

Why North London Clients Trust LASTING LTD

• High-end finishing

• Professional structural work

• Clear timelines & communication

• Fair pricing, no hidden extras

• Clean, respectful and reliable builders

Start Your Extension Project in North London Today

More space. Higher value. Better living.
We deliver extensions the right way.

CTA:

• Get a Free Quote

• WhatsApp Us (Fast Response)

• Book a Site Visit