If a tree is dead, dying, dangerous and damaged beyond repair, felling is clearly the best option. If the danger is imminent, planning permission can be given in retrospect. A replacement may well be the requirement from the local authorities.
Felling large trees in confined spaces is something that we are well experienced at.
Felled due to extensive decay. Fungal growth indicated this decay.
Reduction of large, hollow Ailanthus.
Sycamore which fell due to inner decay. See picture 2 for trunk of decayed Sycamore tree