DIY does
Rinsing the filter, wiping the front cover, keeping the outdoor unit clear of vegetation. All valuable and free.
DIY doesn't
Reach the coil, the barrel fan or the drain pan. Those are where the biofilm lives, and they need dismantling, pressure washing and sanitising to actually clean.
Professional
Full strip, coil wash, barrel fan wash, drain flush, sanitise, reassemble and test. Everything that matters — done in one visit.
