97% clean with excuse letter! Buyer beware

During a routine inspection, a system was found with years of buildup throughout. The vendor was ordered to clean it up by the location. This vendor actually sent the following letter telling the customer how hard he worked cleaning a grease exhaust vent system and how he got it 97% clean. The pictures above that were taken after the cleaning tell a different story. If you see a letter like this, I suggest the restaurant staff starts looking in the system themselves as this is gibberish from someone who really should not be in the kitchen exhaust cleaning business. Imagine the resulting fire if this grease ignited. I wonder where the thinking process is sometimes. Upon re-inspection, we found the system does have adequate access to properly clean by a professional company, as you can see by the letter and pictures, they simply did not clean it. I wonder where the 97% came from? There is only so much duct and this does not even show signs of cleaning in the semi-plugged duct -Don

"The duct cleaning was quite an undertaking but thank God there are young guys in need of employment. We cleaned the entire system as much as possible to the following degree.

Main trunk- horizontal and vertical ducts entirely cleaned from fan to where splits into duct runners.

Fan- cleaned inside and outside.

Exhaust stack (post fan)- was not able to be cleaned due to the hardness of the grease. The stack is the last part of the system, it is exposed to the elements and the grease is baked on. However, this is not a fire hazard since it is far removed from the hoods.

Duct runners- cleaned via the new access holes at each individual hood. However, the runners are not of sufficient size to crawl into, so they are cleaned as much as humanly possible with one arm and a scraper.

Dishwasher duct- cleaned from hood up as far as possible wit a scraper. I didn't find other access.

All in all I would say 97% of the accumulation was removed, and I would suspect more can be removed in the coming months, as the grease that was inaccessible spreads out to fill the void.

Sorry for the quality of the photo's, I'm not tech savy and this is the best we have with the help of my kids to download...

Finally, to answer the unspoken question... YES, I will keep up on the duct cleaning. Now that we have man sized access holes, I would be a fool not too.

Please respond with any questions or concerns,

Thanks for your help, understanding and patience,"