Have some water coming in -think it is the roof - Roofing (Pitched) job in Haywards Heath, West Sussex

Job description

Property is owned by my son, Andrew. A 3 story house with Windows in the roof which is pitched. We have a leak in the roof which is causing us some damp in the bathroom round the window. This may require some replastering. I think that scaffolding will be required to attend to it. The leak is I think 2/3 tiles and it slowly comes in. The property is 6 years old. I am looking for a guide price or advice. You can get in the loft.