I performed a single heating maintenance on a 2022 gas system. I checked amps, capacitor, filter, electrical, cleanliness, and safeties. The system is mechanically performing well for now, but the unit has a bunch of dust present. This home is located right next to a construction site, and it is making its way into the home. I advised the customer that cleaning needs to be done, but would be smart idea to wait until the construction is done. I provided an option to minimize dust in the unit until then with the filter upgrade kit. Also, we spoke about dedicated surge protection for the unit.