What actually falls on Concord roofs, and when
The 1990s and 2000s subdivisions that make up most of Concord were cleared and replanted rather than built into existing woodland, so the trees over these roofs are twenty-five to thirty-year-old ornamentals and shade trees planted with the houses. They are now big enough to reach the eaves on the older streets and getting bigger every year, which is why gutter cleaning demand here has risen steadily on houses that genuinely did not need it for their first decade. The mature canopy is concentrated around the historic downtown rather than in the newer development.
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 Concord 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 Concord itself changes
Getting to the gutters
Overwhelmingly two-storey subdivision houses with wide driveways and generous side access, which makes Concord one of the easier towns in the metro to work in and one of the easier to quote accurately over the phone. Ladder positions are level and the trailer can usually get within a few feet of every elevation. The exception is the older stock around Union Street downtown, where lots are narrower, the houses are taller relative to their footprint, and a run over a porch roof often needs planning rather than a ladder.
The housing in Concord
Concord is the clearest example in the metro of a town on its first set of gutters. The median home here was built in 1998 and 46.9% of the stock went up in 2000 or later, which means the great majority of these houses still carry the aluminium the builder hung, now somewhere between twenty-five and forty years old. That matters because aluminium does not really wear out in that time. What has aged is everything around it: the sealant in the mitres has gone brittle, the fasteners have taken thousands of wetting cycles, and the downspout count was decided by whoever was pricing the subdivision rather than by the roof.