Friends of mine had their stairlift installed and paid for my their local SS-I could not believe it!
I hope that your aunt has a downstairs loo because that is essential because although some proviode 24 hour service, because of how busy they are there may be many hours before they arrive.
I bought mine in 2009 from a small company which has been swallowed up by a larger company. A maintenance contract is a good ideas because servicing and/or repair is pricey.
Washing bio gel or quid in the drum