UPDATE - Teddington Lock Launch Repair

There has been an update to our Teddington Lock Launch Repair page, including details on completion of new lock gate installations.

For latest information CLICK HERE

The Environment Agency is carrying out improvement works to refurbish and recondition the Teddington Launch Lock that will result in a reliable, operational lock, for decades to come.

In September 2025, our construction partner, BAM, mobilised to site to begin the refurbishment works. Major enabling works included structural investigations, lock chmaber dewatering, fish rescue and installation of temporary supports.

The refurbishment of the lock’s supporting structures and gate mechanisms has required extremely high levels of precision and accuracy, with tolerances of just ±1mm in many cases. The lock is over 100 years old, and its structure and condition could only be fully assessed once it was dewatered and surveyed. These surveys revealed differences from historical records, requiring ongoing design adjustments during construction. Prolonged hot and dry weather also affected concrete works because of the impact of heat on concrete strength and fitness for purpose. Unfortunately, these challenges have resulted in some delays.

The lock is expected to be operational again in early 2027, with works continuing site throughout winter 2026/27.