How best to fix old rocking flags?

[orraloon]

Been asked to sort out problems with a patio laid 15+ years ago. Some subsidence, prob poor compaction and it's slumped; some, say 1/4 of total loose flags. Been laid on the 5 blob method.

The proper fix is to take it all up and relay properly, but a lot of work = expensive. Easy enough to take up and rebed just the loose flags. And relevel the sunken patch - reckon after 15 years it ain't going to sink any further.

However, the thing that surprised me was that all of the pointing has disappeared; about 60 sq m of 450 x 450 flags.

Repointing therefore big part of the fix; I propose to use Rompox Easy.

Question: will it work if I fill up the inevitable large voids under the flag edges by e.g. brushing in plain jointing sand and then use Rompox to fix the joints themselves? Else I can see large volumes of the expensive polymeric disappearing into the holes.

BTW, if I only relay a 1/4 of the patio I'll not be guaranteeing the other 75%!

[GB_Groundworks]

Bodge.....

[seanandruby]

price it proper for a take up and re-lay and if they don't like the price, walk away. there is no quick, easy fix.

[London Stone Paving]

Follow the advice.

Its a no win situation for you

[lutonlagerlout]

instarmac and easipoint are your friends here
no quick fixes for a poorly laid patio
LLL

[orraloon]

Hmm, yes. You're confirming my concerns about trying to do what rightly would be described as a bodge. No point in me trying to come up with a cheaper solution for them only for me to deliver a substandard product, got my reputation to consider. After all, is not a problem of my making, and I shouldn't become party to it.

I'll price up for a full re-lay.

Thanks for the words of wisdom.

O