Contractors will be able to gain up to £10m extra in public liability (PL) cover with the launch of a new scheme by Biba and CNA Insurance at this week's Biba conference.

The scheme, for Biba members, is aimed at small and medium-sized, UK-based contracting businesses with a turnover of up to £20m.

Plasterers, plumbers, window fitters and builders were all ideal clients for the new scheme, called, CNA said.

The extra £10m in cover would be in addition to the limits of insurance provided by the primary PL policy for any one occurrence, the company said.

CNA said it was now an increasingly common requirement for principals to request confirmation of insurance cover, both in terms of the cover provided and the limits of indemnity given.

This prompted the need for adequate liability insurance, the company said.