The major phase of the £1m refurbishment of Walsall Gala Baths will start at the end of December with work completing after Easter 2016.
Preparatory works including asbestos removal have already
taken place earlier this year.
The work will see the main pool drained to allow the installation of a boom to create a 25m competition pool and a new warmer teaching pool. A new modern unisex changing village and sauna will replace the male and female changing rooms.
The Baths' main entrance and reception area will also be completely remodelled to create a comfortable, accessible and welcoming environment.
The centre will close on Christmas Eve and a temporary service will re-open on 25 January, with the works completing in April.
The temporary service from 25 January will comprise the Brine Pool, Fitness Suite and Dance and Spinning Studios; the Gala Pool will be closed for the duration of the works.
The temporary operation will also run a revised programme with temporary access arrangements – customers are advised to contact Gala Baths for further details.
Chris Holliday, Head of Leisure and Culture at Walsall Council said: “It is good to see this work now getting underway. The refurbishment represents the largest investment on the Gala Baths since it was built in 1961.
“It will see the facilities transformed, making large areas of the centre fit for the 21st Century.
"It's unfortunate that it has not been possible to keep all parts of the centre open during the refurbishment, but given the scale of the improvements, it just wasn’t going to be practical or safe to maintain a complete service from the site during the building works.
“I'd like to thank our customers for bearing with us while the improvements have been ongoing and we look forward to welcoming you all to a vastly improved Gala Baths in the near future.”
The improvements at Walsall Gala Baths will complement the £24m investment currently being undertaken to build brand new Active Living Centres at Bloxwich and Oak Park. £2m is being provided from Sport England's "Iconic" facilities fund and £300,000 from the Football Foundation.
"This is another stage in the Council's Active Living project to get "more people, more active, more often" and improve residents' overall health and well-being," added Chris.