Major works to provide step-free access at an underground station are “on schedule”, despite concerns they may have stalled.

Transport for London (TfL) confirmed that plans at Harrow-on-the-Hill station are ongoing and are still set to be completed in spring next year.

It comes after some residents suggested the improvement works – which includes the installation of four new lifts and a new overbridge – had stopped.

Station user Roger Warren suggested construction, which began in May, had stalled “after just a few weeks”.

He added passengers have to “cope with restricted movement on the platforms with no sign of an end to the inconvenience”.

But Caroline Sheridan, London Underground director of renewals and enhancements, assured those who use the station that things are on track.

She said: “Making Harrow-on-the-Hill station fully step-free will make a positive difference to thousands of our customers every day.

“The major works started in May and have been continuing at pace, with much of the activity carried out during engineering hours to minimise disruption.”

Local politicians campaigned for step-free access at Harrow-on-the-Hill and they celebrated when the Mayor of London, Sadiq Khan, included it in a £200 million transport upgrade-package.

Navin Shah, local assembly member representing Harrow and Brent, said: “This is going to make life easier for many residents, including parents with prams and those with disabilities.”

Then Harrow-council leader Cllr Sachin Shah agreed, describing the decision as “life-changing” for those who had been previously been denied travel opportunities.