We recently visited a 4 bedroom house in Thame with a large conservatory overlooking a secluded garden. The conservatory was 7 years old and hadn’t had a proper clean during those 7 years.
We cleaned the glass inside and out as well as the framework which had also attracted a significant dirt. The dirt also helped hide a break in one corner over a glass pane in the roof section which we replaced.
The conservatory now looks as good as new and already for the family to use in the spring and summer of 2017.