The iconic structure, in Wordsley, got the once over on Thursday when a cherry picker arrived on site to assess the brickwork of the cone.
Structural Architects CTD were appointed to carry out a full survey of the cone and provide a long-term plan for future maintenance.
Museum staff and on-site artists will also be getting ready to open up the visitor centre, shop and individual craft studios from April 12. While, the coffee house is set to reopen on May 17.
The cone itself and the exhibition spaces will remain closed for now, but visitors can make the most of the onsite studios, shopping opportunities and of course the outside space including the cone’s inner courtyard, canalside seating and benches outside the café.
During lockdown the site has undergone a mini facelift, with internal and external decoration and new outside furniture.
Stuart Connelly, head of culture, leisure and bereavement services at Dudley Council, said: "We are really looking forward to welcoming our visitors back.
"We have kept busy, preparing the site for reopening and have made lots of learning resources available on our website during lockdown but we can’t wait to welcome people back through our doors so they can learn about the site’s history first-hand.
"It is good to have the cherry-picker on site, and the work the architects are doing will ensure we can keep the cone in the best possible condition for future generations to enjoy."
The site reopens at 10am tomorrow. Opening hours will be between 10am and 3pm Monday to Friday, and 11am to 4pm Saturday and Sunday.
To find out more, visit www.dudley.gov.uk/things-to-do/museums/red-house-glass-cone.