What actually falls on Mount Holly roofs, and when
Light across the newer half of the town, which was developed on open ground with planting that has not yet closed over the roofs, and moderate in the older streets near the river and the original centre. Mount Holly sits on the Catawba, and river-adjacent lots hold noticeably more mature hardwood than the newer development away from the water. As a whole this is a lighter debris load than its neighbours across the county.
That is the part national advice cannot tell you. Almost every article on this subject says twice a year, spring and autumn, and books the autumn visit for October. Across this metro that timing is wrong, because the dominant street tree is the willow oak (roughly 200,000 street trees in Charlotte, a significant share of them oak), and willow oak holds its leaves late, dropping through late autumn and into winter rather than in one convenient fortnight. A single clean booked for October happens in the middle of the drop rather than at the end of it.
So under real canopy the useful pattern in Mount Holly is one visit once the drop has genuinely finished, in late December or January, and a second in spring, which here is not a leaf job at all. Spring is pine pollen, catkins and seed, and it washes into the outlets and sets there. A spring visit is a downspout job with a gutter attached.
Whatever the schedule, the visit finishes the same way anywhere we work: hand-cleared into a bucket rather than blown off the roof, every downspout flow-tested with a hose, and photographs from the ladder of every run before and after. You are hiring us precisely because you are not going up there, so you get the evidence rather than the assurance.

What Mount Holly itself changes
Getting to the gutters
Straightforward modern subdivision work over most of the town, level drives, standard setbacks, ordinary two-storey elevations. The older streets near the river centre are tighter and include a number of properties on sloping ground running down towards the water, where a ladder position needs proper setting up rather than improvising on a fall.
The housing in Mount Holly
Almost everything written about Gaston County housing describes Gastonia and then assumes the rest follows, which produces exactly the wrong answer for Mount Holly. This town is 49.1% built since 2000, with a median home value of $337,800, which makes it newer than the Gaston County average and newer than Mecklenburg County. The practical consequence for gutters is that the spike-and-ferrule problem which dominates Gastonia barely exists here. Half of Mount Holly is on its first gutter, hung on hidden hangers, with the fascia still young.