We had a brand new boiler fitted few months back along with the controller and new pump...power flush.
We had a knock on the door "Would you like a new boiler"...assumed it was some old Pony and told the bloke to leave my garden before I set my feral children on him.
Few weeks later different firm same patter...she had large breasts (least im honest) so allowed her to give me the patter and agreed to a survey,long story short 18 months later get a call to arrange new boiler and bits.
Both of us working...but qualified to the Government scheme as we get working tax credits,was a long list of qualifying benefits/pension stuff and several which applied to the older generation.
Took a while from start to finish mind.
Probably bit late now,labourer at work was knicking £800 boilers and knocking them out at £40 a pop.