Our companies have developed from starting in the industry 7 years ago, cleaning a few ovens, to now the other side of the spectrum of commercial and deep / extreme cleans. You will see from this article that there is nothing that we cannot tackle.
The kitchen extraction system presents particular hazards due to the potential for the accumulation of grease. Accumulated grease within an extract system forms a hidden combustion load. Under certain circumstances flames or very high temperature within the duct can ignite the grease causing fire to spread rapidly through the duct.