Diamond Construction London

Diamond Construction are a well established family business that has been operating successfully and providing clients with a professional and excellent service since 1981. We cover all aspects of building work specialising in extensions, conversions, new builds and all types of refurbishment works. We offer a bespoke design and planning service. We provide a free no obligation quote with written specifications and references, working with all councils and building control standards.


  1. Extensions
  2. Loft Conversions
  3. Conversions - General
  4. Kitchen Fitting
  5. Pitched Roofing
  6. Flat Roofing
  7. Bathroom Fitting
  8. Tiling
  9. Fascias & Soffits
  10. Guttering
  11. Bricklaying
  12. Groundwork & Foundations
  13. Restoration & Refurbishment

About Diamond Construction London

Diamond Construction was formed in 1981 by me with two employees. I now have over 32 full time staff covering all domestic and commercial construction works all over London and surrounding areas.

We specialise in new builds, extensions, loft conversions, basement extensions and general building work. As well as being contracted by private clients to build luxury homes.

All works are taken out by members of our workforce which include accredited electricians, plumbers, structural engineers and architects.

Our company has public & employee liability insurance, FMB approved company and all works are carried out to building regulations and standards. We provide written guarantee and certificates for all work undertaken by us.

Client references are welcome on request.


Public Liability Insurance
FMB Registered Builder
NICEIC Approved Contractor
Gas Safe Registered
CHAS Registered
City & Guilds Approved
NHBC Registered House Builder
Velux Accredited Installer


Professional Indemnity Insurance

Limit of indemnity: £100,000.00
Valid until: 31st Jan 2022

Public Liability Insurance

Limit of indemnity: £100,000.00
Valid until: 31st Jan 2022