Building Dispute Advice Services is an expert construction dispute consultancy, its mantra is “your satisfaction is our aim”. Engage us and every step of the way we will have your company’s best interests at heart. We will give you unbiased, independent advice on your specific problems. Our ultimate concern is the safety & security of your company.

What we do:


  • Advice on disputes and payment problems.
  • Extension of time evaluation.
  • Extension of time claim preparation.
  • Loss & expense claim drafting.
  • Adjudication referrals and defences.
  • Arbitration and litigation actions.
  • Retention recovery.
  • Final accounts.
  • Monthly measurement.


  • Main contract and Sub-contract drafting.
  • Contract amendments & recommendations.


BDAS was started by its Managing Director, Jon E Mizrahi in 2005 as he felt that there was demand within the construction industry for quality solutions – but at more competitive rates than other claims consultancies and solicitors were charging. BDAS’s chartered surveyors are both RICS and CIARB accredited and are experts in their field. Please call us for a quote and you will find that our hourly rates are highly competitive when compared with other claims consultancies, who typically charge in excess of £180 per hour and solicitors of £250+ per hour.