Andrew Southard
Some assistance from your neighbour is key here., if this is possible? It would be advantageous to lift the boards yourself or if unable to, get a general tradesperson or builder to do this. If access to your neighbours property is possible it would be helpful to see where the smoke/fumes are coming from and the route they are taking through the adjoining floor/wall. A general builder would be able to seal up any offending holes, but again I would stress that cooperation from your neighbour would be paramount. Hope this helps. Regards Andrew
