The Victorian Managed Insurance Authority has removed Insurance House from its broker distributor panel for domestic building insurance.

VMIA told insuranceNEWS.com.au it decided to “end its distributor relationship” with the Steadfast-owned brokerage last week, but refused to comment on the reasons behind the sudden and unprecedented move.

“Impacted builders have been contacted directly and asked to nominate another distributor from the approved panel by July 31,” a VMIA spokesperson said.

“A dedicated helpline and email support has been set up for builders to answer any questions and provide assistance during the transition.”

VMIA says policies taken out through Insurance House are still valid, and there will be no impact on homebuyers.

“Due to the terms of the distributor agreement, VMIA cannot comment on the reasons for this decision.”

Each year more than 70,000 domestic building insurance policies are taken out across Victoria.

The four remaining distributors are Bovill Risk & Insurance Consultants, CCM Insurance Group, HIA Insurance Services and Master Builders Insurance Brokers.

Insurance House continues to distribute builders’ warranty cover in other states.

A Steadfast spokesperson told insuranceNEWS.com.au that the VMIA statement "is accurate" but added: "Insurance House makes no further comment".