Its parent entity, Dee Valley Group plc had shares listed on the FTSE Fledgling Index on the London Stock Exchange, but was purchased by Severn Trent in February 2017.

In 1863, the Wrexham Waterworks Company was first established with the aim of pumping water from nearby Pentrebychan, west enough of the town to not be influenced by pollution.

To meet this increased demand, a new, larger reservoir was built, named Ty Mawr, which opened in 1907.

The headquarters at Egerton Street were sold and the company moved to new, purpose built offices at Packsaddle, Rhostyllen.

In 1997, the group purchased Chester Waterworks, and over the next year, combined operations from both entities into Dee Valley Water.

In 2002, Dee Valley Group was listed on the London Stock Exchange with the ticker code DVW.

In October 2016 the board of Dee Valley Water announced that they had agreed a takeover of the company by Ancala Fornia Limited.