Michael Gove this morning dodged the question of whether Heathrow should help pay for new schools under its flight paths.
The education secretary was quizzed by getwestlondon during his visit to Nishkam School West London, in Isleworth, this morning.
The Sikh school with a multi-faith ethos opened at an empty office block in London Road last September but its governors hope to move to new purpose-built premises in 2016.
However, the airport has not contributed towards the cost of building extra classrooms and new schools, like Nishkam's, which it has been claimed are more expensive than those elsewhere because of the soundproofing needed to block out the noise of passing jets.
Heathrow has said strict regulations mean new schools should be built with double glazing and ventilation already in place, so there is no need for the airport to help out.
Asked today whether Heathrow should stump up money towards school building costs, Mr Gove said: "It's a good thing if local businesses can play a part in helping support state education, and I know that Sky wants to help ensure there are more good school places.
"I know Heathrow is one of the borough's biggest providers of apprenticeships but when it comes to thinking about the provision of new school places the principal responsibility rests with the Department for Education and the local authority.
"To my mind Heathrow is a good corporate citizen and I wouldn't want to prejudge and issue like that."
More than 4,000 extra secondary school places are needed across Hounslow by 2019, according to Hounslow Council, and that demand is likely to be met largely by new free schools opening in the borough.
The Department for Education funds the building of free schools and has provided grants for new classrooms, but Hounslow Council says there is a major funding shortfall for school expansion in the borough.
Ruth Cadbury, Labour's parliamentary candidate for Brentford & Isleworth, has previously claimed soundproofing work adds up to a third to the cost of building new classrooms and schools under the flight paths, and said Heathrow should contribute.
The airport has promised a £250 million compensation pot for local communities should it get the go-ahead for a third runway.
Its new chief executive John Holland-Kaye this week promised to work with council leaders from neighbouring boroughs to review Heathrow's school noise insulation programme.