A sealing arrangement for a pole assembly having a tubular base, a tubular upper mast of smaller diameter, and a cladding. An end of the upper mast is inserted within an end of the base and a portion of the base overlaps the upper mast and is fastened thereto, with the cladding surrounding the base. The sealing arrangement comprises a transition ring and a seal assembly. The transition ring surrounds a portion of the base, upper mast and cladding. The transition ring having an internal downwardly facing surface, and the seal assembly is disposed within said transition ring to seal between the external surface of the upper mast and the transition ring. The seal assembly comprising a sealing plate and a seal disposed between the downwardly facing surface and the sealing plate, and the sealing action of the seal assembly is actuated by the sealing plate squeezing said seal.