Thanks for the advice from all concerned. Misled you all, not intentionally.
When I wrote around the house, I literally meant "around the house" -
My hesitation in calling the gas company was due to the smell being strange
, rather than that of rotting eggs etc.
I had already cleaned the low gutters in case of dead birds etc and cleared
Could not think of anything else so it was a case of elimination.
I checked the gas loss over a period of an hour, being 0.0002 units on the
meter which was a rough guess as the last number is not calibrated.
Anyway I called out the gas services and within 20 minutes he arrived. he
said he could smell the odour, but said he doubted it was gas,
He tested the meter and said it was 100% safe and no leak at all.
So again thanks for the advice,,,,, one last request please, I am now stuck
for tracing this smell, has anyone else been in a similar position and how
did you rectify it