Parents at a Pinner school that could be merged with its neighbour have complained about Harrow Council's policy on school amalgamation.
The authority introduced new rules a year ago governing the circumstances in which first and middle schools could be combined, and is now consulting on how well the guidelines have worked.
Four parents at West Lodge Middle School, in West End Lane - currently midway through talks on its proposed merger with West Lodge First - have criticised the protocols. The governors argued the time limit for the consultation was too short at two weeks, and the policy leans towards amalgamation.
Governor Pamela Fitzgerald said: "The adopted policy does not appear to have taken into account key comments in the consultation, and the London Authority has failed to make the consultation responses publicly available.
"This casts doubt on whether there was any meaningful consideration of the responses. Parents are entitled to expect more of the London Authority when children's education is at stake."
The policy states governing bodies must amalgamate schools if there are headteacher vacancies, low pupil numbers, negative OfSTED reports or financial difficulties or building issues.
A council spokeswoman said all complaints were considered in redrafting the guidance, which includes a clearer timeline and outlines the support the council will offer during the process.
She said: "A key clarification is that cabinet must determine the future organisation of schools and cannot delegate this to governors."
Six schools have merged since 2005. The latest to be considered is Roxeth Manor First and Roxeth Manor Middle, in Eastcote Lane, following head-teacher vacancies at both. The proposal goes to cabinet after consultation with parents, pupils, governors and staff.
The West Lodge Schools amalgamation will go before the school's adjudicator on November 12.