Expert Witness Service for Fenestration Disputes

Get expert advice on domestic window and door installation disputes

When a dispute between an installation company and a homeowner cannot be settled, specialist expert advice and reporting can be the best way forward.

We can act as a single joint expert or as a party-appointed expert and produce a high-quality report in line with the Civil Procedure Rules for expert witnesses.

  • Window and door installation specialists
  • Party appointed expert
  • Single joint expert
  • CPR 35 compliant reports

Our areas of expertise

Domestic window and door installations

Building regulation compliance inspections

British Standard 8213-4

Specification disputes

The RISA team are specialists in domestic window installations and can draw upon the resources and expertise of the entire GGF Group for the benefit of our clients.

Need Expert Witness assistance?

Contact us today to discuss how our fenestration experts can help you. Call us on 0207 939 9300  or email

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