Good evening dear forum members,
About two months ago (so well before the onset of winter), I noticed a significant unevenness in the paving stones on the sidewalk directly in front of our house (when standing facing the front door, it is on the right, just before the neighbor’s house) – there are 2-3 rows across that are noticeably uneven and, rather than having sunken, have actually risen.
Unfortunately, this is not very clear in the pictures (in one photo I have roughly marked the spot with my foot).
My question now is what could cause such a rise in the paving stones. Could it be due to underground pipes that might be damaged and leaking fluids, which in turn may have affected the paved area? Although I would expect that if water was involved, the ground would be soft and the stones would more likely sink.
Any other possible causes? Above all, I want to avoid the possibility that this could indicate hidden issues that might damage the facade or foundation of our house. Whether the sidewalk is uneven or not is basically irrelevant to me. Is there any way to find out without digging up the pavement?
The condition has not changed over these two months – neither worsened nor improved. The paving stones are not loose; they remain just as firmly fixed as always, only uneven.
Possibly relevant – we don’t have a basement. On the side where the paving stones are uneven is our kitchen with a tiled floor, so any issues would likely be noticeable there first... There are no visible signs of damage to the insulation or facade.
I’m at a loss.
Thank you very much in advance!



About two months ago (so well before the onset of winter), I noticed a significant unevenness in the paving stones on the sidewalk directly in front of our house (when standing facing the front door, it is on the right, just before the neighbor’s house) – there are 2-3 rows across that are noticeably uneven and, rather than having sunken, have actually risen.
Unfortunately, this is not very clear in the pictures (in one photo I have roughly marked the spot with my foot).
My question now is what could cause such a rise in the paving stones. Could it be due to underground pipes that might be damaged and leaking fluids, which in turn may have affected the paved area? Although I would expect that if water was involved, the ground would be soft and the stones would more likely sink.
Any other possible causes? Above all, I want to avoid the possibility that this could indicate hidden issues that might damage the facade or foundation of our house. Whether the sidewalk is uneven or not is basically irrelevant to me. Is there any way to find out without digging up the pavement?
The condition has not changed over these two months – neither worsened nor improved. The paving stones are not loose; they remain just as firmly fixed as always, only uneven.
Possibly relevant – we don’t have a basement. On the side where the paving stones are uneven is our kitchen with a tiled floor, so any issues would likely be noticeable there first... There are no visible signs of damage to the insulation or facade.
I’m at a loss.
Thank you very much in advance!
Hello, we also had some raised areas in a small section of the paving... I removed a few stones to take a closer look. And sure enough, there was a narrow root underneath, which couldn’t grow further at the curb and therefore started to find new paths, forming thick knots. These knots pushed the paving stones upward. I removed the root as best as I could and then reset the stones with some fresh sand. It looks great again now. Best regards, Steffi33.
M
meister keks4 Feb 2017 23:59Look underneath if it bothers you.
It would bother me too.
If it concerns you, look for a solution.
It would bother me too.
If it concerns you, look for a solution.
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