Our neighbours planted 2 of these trees about 15 years ago right next to our brick garage. I've now noticed there are some cracks in the garge wall and that the crazy paving near the laylandii (on our side) is cracking up. It could be just that the crazy paving is old and the garage is old and so nothing to do with the leylandii. However I'm a little worried that whenever we come to sell, this will be a dealbreaker. I've looked into getting a surveyor to let us know if the cracks are caused by the leylandii but it will cost over £300. My neighbours aren't at al approachable and love their trees but they are really huge, planted right bank up against our garage wall(probably about 2 feet maximum away) and about 15-20 ft away from our house (if you could our garage inbetween their Leylandii and our house.
Does anyone have aqny suggeastions about what I should do? About 3 years ago the branches of one of the trees knocked of one of the upstanding piers on the garage roof. The neighbour has keept the tree trimmed back so it doesn't touch the roof now but never offered to pay us for the repair (it didn't cost alot - only about £80- so we didn't bother asking him)