Dirty grocery store Heating and Air Conditioning always works

I have heard that yearly Heating and Air Conditioning service is required.

If you want your Heating and Air Conditioning system to last longer, you need to have it professional cleaned, oiled and tightened.

I have never paid for Heating and Air Conditioning service because of our local grocery store. The grocery store in neighborhood is the dirtiest 1 in the world. There is dust along the shelves and on the floor. I don’t know how they pass health inspections. You literally have black hands after shopping in there. The store’s Heating and Air Conditioning system is visible and is disgusting. The unit is coated in dust, dirt and spiderwebs. It looks like it has been living in a basement for 100 years. I used to toil at the store and I never saw anyone wash it. I never saw an air filter change or a professional Heating and Air Conditioning tech wash the device. 10 years later as a shopper, the Heating and Air Conditioning looks the same. Just as dirty as always and with no hope of cleaning in sight. If that grocery store Heating and Air Conditioning can power up every year and not fail, our Heating and Air Conditioning truly can. That store heating and air shows how unnecessary Heating and Air Conditioning service is. The Heating and Air Conditioning unit hardly makes any noise either. Just a slight rumble, but quality heating and air when the store needs it. I refuse to know that the grocery store has a special brand that can handle pounds of dirt. I know the large secret is that Heating and Air Conditioning systems can take a lot of abuse. Yearly service is more of a guideline or maybe it is a scheme to get more money.

HVAC serviceman