The work will affect trains from Monday to Friday (May 12 to May 16).
We’ve broken down all the details to help you plan your journey.
Monday to Thursday (May 12 to May 15):
The 11.50pm London St Pancras International to Faversham service will be replaced by accessible buses between Ebbsfleet International, Gillingham and Faversham, calling at all stations except Higham, Newington and Teynham.
Tuesday only (May 13):
Late night engineering work between Faversham and Ramsgate will not take place.
Trains will run normally between Faversham, Margate and Ramsgate.
Tuesday and Wednesday (May 13 and 14):
The 12.25am London Victoria to Ashford International service will be diverted after Bromley South, calling at Orpington, Sevenoaks and Ashford International.
Replacement buses will run between Bromley South and Ashford International, and West Malling and East Malling.
Tuesday to Thursday (May 13 to 15):
From 12.15am until the end of service, replacement buses will run between Lewisham and Dartford, Gravesend via Bexleyheath, Gravesend via Bexleyheath, and Woolwich Arsenal.
Trains will be diverted to run via Sidcup instead.
Tuesday to Friday (May 13 to 16):
From 12.20am until the end of service, replacement buses will replace trains between Meopham and Sittingbourne and Gillingham.
A connecting train will run between Sittingbourne and Ramsgate.
The 12.27am London Victoria to Orpington via Beckenham Junction will only run between London Victoria and Beckenham Junction.
A replacement bus will run from Beckenham Junction to Orpington.
The 4.14am Gillingham to Tonbridge service will start at Strood at 4.30am.
A replacement bus will leave Gillingham at 3.55am, calling at all stations to Strood.
Wednesday only (May 14):
The 4.38am Swanley to London Victoria service will be diverted to start at Orpington at 4.37am.
A replacement bus will leave Swanley at 4am, calling at St Mary Cray at 4.18am to connect with the train.
Wednesday and Thursday (May 14 and 15):
The 11.07pm London St Pancras International to Ramsgate via Dover Priory service will run non-stop between Dover Priory and Ramsgate via an alternative route and will additionally stop at Faversham.
A replacement bus will run between Dover Priory and Sandwich, calling at all stations.