OFTEC has urged installers working on oil to make sure their work complies with the relevant building regulations and British standards.
The warning comes after a developer was fined £2,500, along with a plumbing company who were fined £12,500 and ordered to pay £10,000 costs after admitting charges of polluting a tributary of Borle Brook in Shropshire.
Contrary to building regulations and British standards, bare copper pipe had been used for underground oil supply lines on the site of three converted barns.
Because the pipe was unprotected, it subsequently corroded causing the leak.
The job was approved by the local authority building control department as being compliant with building regulations.
However, the court overruled this and deemed that both the developer and plumber were still liable as they were the ones who had carried out non-compliant work.
OFTEC’s technical director Alan Black said: “This case highlights why you should never try to cut corners, and furthermore illustrates that installers must always take full responsibility for the standard of their work.
“Even if building control signs the job off as compliant, installers are personally still liable for their work.”