Three of the borough's secondary schools could be closed within three years if they do not improve their exam results.
Harlington Community School, in Pinkwell Lane, Harlington, Stockley Academy, in Park View Road, Hillingdon, and Mellow Lane School, in Hewens Road are all facing closure if they do not improve their GCSE results.
The Government announced on Monday it is targeting all schools in which fewer than 30 per cent of pupils achieve at least five good GCSEs, including English and maths.
Neil Sherman, headteacher at Harlington Community School, is angry the Government has chosen to make this announcement six weeks before the next set of GCSE results are due out.
He said: "I am irritated by it rather than worried by it. If the Government wants to hit schools over the head, hit them over the head when we have a recent set of results.
"I have no problem with the Government closing poor schools, as long as the criteria they are using is fair and transparent.
"We were disappointed the results were not as good as they should have been last year, but it's an improving school.
"We have worked tremendously hard to improve everything that was highlighted by Ofsted, and they recognised that in their inspection last week.
"We are working with challenging communities, so the quality of teaching has to be significantly better.
"When the results come out in August you will see the hard work that has been put in.
"The timing of this report is absolutely abysmal."
Harlington Community School had only 25 per cent of its students achieving five or more GCSEs grade C or above, including English and maths, last year. Stockley Academy also had 25 per cent and Mellow Lane School had 29 per cent.
A new National Challenge programme was launched yesterday (Tuesday), which will require every secondary school to achieve this 30 per cent benchmark within three years or face closure.
Julian Wooster, deputy director for children and families at Hillingdon Council, said: "We have not received formal notification of any of our schools being included within this programme as a number of other criteria are being considered, including past improve ments and the results from Ofsted Inspections.
"The council has an extremely good track record of working with headteachers and governors to help with improvements, and we will be offering additional signifi-cant support should any of our schools be identified."
There are 638 schools across England which need to improve, and those which do not improve could close and reopen as academies.