Contractor Murphy has won a major Transport for London (TfL) access for all (AFA) contract to construct step-free access at four stations on the Great Western Main Line route into London.
In total 11 lifts will be installed at Hanwell, Iver, Langley and Taplow railway stations and two twin-span bridges will be installed at Langley and Taplow. A new ticket office will also be built at Iver.
All stations will also receive a power upgrade.
Murphy rail director Paul Mohan said: “This project has some really interesting and complex engineering aspects to it. We will be excavating down to a Grade II listed subway at Hanwell and managing some very short possessions.
“We are putting commuters and residents at the heart of this work and will do everything we can to minimise disruption. I’m very pleased with the plans we’ve made and am looking forward to putting these in to action.”