find a company that can help adapt our front door to a keyless entry system

Oh, that’s so very kind. Thank you Bluebell21 and Mary_Scope. I have to be honest and say that although I am active on social media with friends and family, reaching out to a public community is new territory.
My husband’s disability hit hard and unexpectedly. It has had a huge impact on our once very carefree life. So I’m trying hard (maybe too hard) to find ways of doing as many things as we used to enjoy. So although my question was about front door entry - which is essential - I’d also love to hear from anyone who has found ways to travel. We can’t go abroad (or at least we don’t know how with all his mobility issues). So any advice/theatre/restaurant recommendations all really welcome. We live in SW London but will go anywhere. I’ve become a bit of a disability warrior when it comes to all this. Thank you again for your warm welcome. It means a lot.