Ewi Specialist Ltd

External wall insulation and rendering services.Loft insulation. We are London based company run by Sebastian & Sebastian. Everyone in our experienced team have over 10 years of experience in external wall insulation and rendering services. For us it's all about quality and it's all about lasting relationships built on trust. We pride ourselves on our high quality of workmanship and this is what we offer to our clients.


  • 1.Insulation Installer
  • 2.Plasterer

About Ewi Specialist Ltd

External/Solid wall insulation
Rendering services
Loft insulation
Internal wall insulation


Public Liability Insurance

Limit of indemnity: £5,000,000.00
Valid until: 5th Feb 2019