"Let us make your carpets clean enough for your child"
this statement is not strong enough, perhaps.......
" anti-allergy cleaning as standard, perfect for homes with children & pets"..... But I think that is a bit long and not quite right
"Do the carpets in your rental property smell a bit doggy?"..... This is amateur sounding , I would say.... "is your rental property suffering from lingering pet odours"
Or appeal to their pockets..." Are carpet pet odours effecting your rental potential ?"
The other pages seem fine to me but I would brainstorm 5 different sentences for each page get your wife and her friends to give their suggestions try and think of really daft ones