Tettenhall's Transport Heritage Centre has been a refurbished after being closed throughout lockdown.
The museum, on Henwood Road, has invested £20,000 in replacing windows which had been in place for more than 100 years.
Alec Brew, 73, curator and volunteer, said: "The museum was closed throughout lockdown and then we had the new windows fitted.
"We were able to fund the work through a grant of £12,000 from the Ibstock-Enovert Trust, with the other £8,000 coming from donations and what we sell in the shop as the museum is free of charge.
"It has taken us longer to put everything back together than it did to take it down."
The work was done by specialist heritage window fitters Drury Casement and has helped the museum to continue its modernisation of facilities.
After the windows were fitted in September, extensive refurbishment of the inside of the museum took place.
The team of 15 volunteers have built new displays.
The main new attraction is a Blitz House, a wartime living room featuring numerous artefacts that have been donated to the centre over the years.
There is also an unexploded replica of a bomb at the front door of the house.
Alex added: "Today local historian, Ned Williams, will be visiting the centre for the grand reopening ceremony and cutting the ribbon."
All staff at the museum will be wearing masks and encouraging visitors to do so too and respect social distancing.