Construction services in London

Services built around your home

Extensions, lofts, refurbishments, and roofing — delivered on time and on budget.

What we do

House Extensions

House Extensions

Single and double-storey extensions, open-plan kitchens, RSJ installation, and structural works.

  • Planning & design support
  • Steelwork + foundations
  • Building control sign-off
See examples
Loft Conversions

Loft Conversions

Dormer, hip-to-gable, mansard, and Velux conversions to add bedrooms, bathrooms, and storage.

  • Stairs & layout optimisation
  • Insulation & fire regs
  • En-suite fit-outs
See examples
Refurbishments

Refurbishments

Full interior renovations, reconfiguration, plastering, electrics, plumbing, kitchens and bathrooms.

  • Project management
  • NICEIC & Gas Safe partners
  • High-end finishes
See examples
Roofing

Roofing

New roofs and repairs in slate, tile, and flat systems (GRP/EPDM), plus gutters and leadwork.

  • New builds & re-roof
  • Flat roofing systems
  • Emergency repairs
See examples

Recent work snapshots

Kitchen extension
Loft conversion
Full refurbishment
New roof

Why choose 2A Construction

Measured & organised

Clear scope, itemised quotes, and weekly updates from your dedicated project manager.

Design to delivery

We collaborate with architects and handle approvals where needed to keep things moving.

Craftsmanship

Trusted trades, compliant installs, and finishing detail we’re proud to hand over.

Our process

01
Site Visit & Quote
We visit, measure, and provide a clear, itemised quotation.
02
Design & Planning
Architectural drawings and approvals if required.
03
Build & Manage
Dedicated PM, tidy site, weekly progress updates.
04
Handover & Guarantee
Snag-free delivery with long-term structural cover.

FAQs

How quickly can you start?

Typical lead time is 2–6 weeks depending on scope. We can often begin surveys and prep immediately.

Do you help with planning and building control?

Yes. We coordinate with architects and handle building control sign-off as part of our service.

Are you insured and accredited?

Yes. We are fully insured and work with accredited partners (NICEIC, Gas Safe). Structural work carries a 10-year guarantee.

Can I see similar projects?

Absolutely — browse our portfolio or ask us for references near you.

Browse projects

Ready to start? Book your free site visit.

We’ll assess, advise, and provide a clear, itemised quotation.

Team on site