Hey neighbor - I see you are in Carthage, mo. I'm an hour away in Springfield. I personally would stick with general pressure washing, things like trucks and houses. Maybe CLEAN fences and decks but let them do the staining and sealing or have them hire someone else. Usually thats what the customers I get want anyways.
I have done hoods with another company before, couldn't pay me enough to do it again. I dont know if you know much about Branson or not but south of there is a golf course called top of the rocks. We used to clean their hoods for them until they had a large fire and they attempted to blame it on us. The fire was actually caused by a crack in the flue of the wood fired pizza oven, within this wooded structured building, that we were not responsible for anyways. You know how insurance companies are tho they will try anything possible to get out of their responsibility of paying up. We cant see any way they could pin this on us (the other company that i dont really do much for anymore) but they are trying.
The building was a 2 million dollar loss and we're insured for 2 million but for some reason in this case the insurance company says theres only 1 million in coverage for this type of loss. So IF they were somehow able to hold us liable for it (which they cant) then we (the other company, not my company) would be responsible for 1 million dollars or more of the cost.
There is just way way too much liability in hood/exhaust system cleaning for me plus I have done all the hood cleaning I care to do on top of that. Even if you do your job perfect, if the restaurant you clean for has a fire guess who they are going to try blame? You may not be held responsible but there will still be alot of stress, inconvenience, attorneys fees, etc plus the insurance company may drop you (ours did) and your new company can jack up your rates.
Even if you're not at fault...
Like I said, you couldn't pay me enough to do hoods again. If I ever SEE the inside of a commercial kitchen hood again, it will be too soon.