The Problem

Window and door disputes are common. Good technical evidence is rare.

When an installation fails, the client is often left arguing against installers, retailers or manufacturers who already know the process.

  • Defective installationPoor fitting, failed seals, water ingress, misaligned frames or operational problems dismissed as acceptable.
  • Mis-sold productsPromised ratings, specification, security, acoustic or material quality that does not match what was supplied.
  • Poor specificationWrong products selected for the property, planning setting, exposure, use or performance requirement.
  • No independent voiceThe installer, retailer and manufacturer may all have an incentive to minimise the problem.
Evidence, clarity and leverage.

DMR helps turn a messy complaint into a structured technical position that can support negotiation, complaint escalation, ombudsman processes or legal support.