If Vitality does not cover your assessment — or only covers part of it — you can self-pay for the remainder or for the full cost. Harley Mind Care adult ADHD assessments start from £800 and child assessments from £1,245. Interest-free instalment plans are available for families who need to spread the cost. Please contact us before booking to discuss your options. We will never proceed with a booking without being clear about costs upfront.