I'm 66 and starting the wind down. This time last year my turnover was £3500 per month.
I sold £700 worth to my son in law and dropped to about £2800.
This Spring I sold another £700 worth to my other son in law and am on £2100.
I plan to sell another £700 in Spring 2026 leaving me with the cream £1400/£1500 after price increases.
My full state pension kicked in in June 25 (age 66) and in April 26 should be over £1000 per month plus change.
I also have some rental income providing several hundred pounds already and a pension pot that will let me have a few hundred a month depending how I draw it. (Not using it yet)
In theory if my health holds up reasonably and I drop from £250 a day to just over £200 that will be 7 days a calendar month at 6 hrs maximum.
Mrs Gold won't get her state pension and tiny private pension until Spring 2029 as she will be 67 then. That is probably when I will stop as I will be nearly 70 and my van will be 17 years old if still going.
Before I finally stop I envision having £1000 per month of window cleaning at a maximum of 4 days.
But if my health is good enough I might plod on indefinitely at that level. Or until the van dies.

I am aware that our vehicles are getting on - 19 year old car, 19 year old caravan and a 13 year old van. So have to budget for replacements although the caravan is stored on the site we use so when that dies in a few years we will probably not replace it!