Experts recommend deep cleaning a greenhouse at least once a year to ensure maximum natural sunlight through the roof and windows. If your greenhouse has a wooden frame, it should be repainted at least once every 2 years to prevent rot and other damages.
We had quite a few repairs required. Roof patching, fixing an outdoor column with painting, fixing worn window trims, building a new door for our outdoor storage and some gyproc repairs. Easy to within with.