does anyone know of any national companies/franchises that clean bathrooms in the same way as ovens?
My toilets are disgusting 
not due to lack of cleaning but the limescale is horrific and due to muscle weakness I cannot scrub or manoevre very well. I have hurled every product in the supermarket and on the internet down the loos but to no avail. The stains leer at me, especially under the rim.
What do landlords do upon change of tenants? Are there any really heavyweight cleaning firms with specialist equipment who could do this?