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We got a tiling company to install some crazy pave on to our concrete al fresco and the concrete front porch of our new build. The company didn't say they do crazy pave on their website but they quoted for it so we assumed they could do it. We noticed issues while the installer was gluing them down but because he didn't speak any English we had to call his supervisor to explain, who would call him. For example we noticed that the gaps between paves was up to 7cm which seems larger than most grout can handle - but his supervisor didn't seem too worried and said the would use a booster in the grout.
Anyway, he came out again to do the grout over a really hot day, and within 24 hours hairline cracks have appeared in the al fresco (which had the largest gaps) and the grout seems to be failing in the porch where the tiles meet the exposed aggregate concrete driveway. We called and texted the supervisor but he didn't call back even after a few days so we called the business and they were helpful but didn't seem concerned and told us to point the issues out to the tiler when he arrives to seal it.
Can anyone give us their expert advice on whether this is a big problem or not? Can this be repaired easily when the tiler comes back on site, before he seals it? Or does this need the grout removed and re-installed? I can't find any answers online.
The al fresco is the first set of pictures and the porch is the second set.
Thanks!
