If you have central heating, leave it on a low setting when you go away. No pipes to freeze then. Make sure your existing plumbing is well insulated. Is the stop tap in the street accessible for you to turn off ? Some are old and dated with a "square " to be quarter turned to turn off. Have...
Overheads for se heating/ plumbers from £5,000 a year plus, for all the insurances, van running costs, certificates, training etc. without advertising. SE Electricians are the same.
Probabley about £30 worth of scrap in most boilers after you have stripped out the copper and brass (valuable parts, cast iron worth very little unless plenty of it). If you want the scrap then you generally keep all the waste to dispose of. Should agree before job starts. Usually the scrap...
I would replace it now. Was working at a property last year where a builder was doing an extension . Water started seaping up through the block paving on the pathway. Dug down to expose the lead water main which was corroding due to contaminated back fill.
Slope the pipe to the outside. Going to have to make sure the fan you purchase has the ability to overcome the 5m distance. Standard fan is straight through the wall to the outside.