the Victorian house we recently bought, and which is empty while we
are doing it up, seems to have a lot of woodworm holes. It's in floor
boards and joists. The worst are some ground floor joists. I know
that in heated hosues these infestations tend to die out but I cannot
tell whether this infestation is active or not. I plan to take
professional advice but....

I know (from past experience) that most comanies require you to lift
floorboards every metre (and use a 1 metre spray nozzle). I would
like to avoid lifting so many boards because of the damage. Most of
my boards run right across from side to side so they are hard to lift
without either cutting the boards or removing the skirting boards.

Does anyone know a company which will treat an infestation (if
required) using longer (say 2m) nozzles, so I can lift fewer boards?

Many thanks,

Robert