Why the reversal cost matters more in Salisbury
Among the hardest in the service area, and for the same reason the buildings are worth looking at. Victorian and Craftsman houses are tall relative to their footprint, with steep pitches, turrets, dormers and wrap-around porches that put runs above roofs rather than above ground. A significant proportion of Salisbury historic work is roof access rather than ladder access and is quoted individually. This is not a town where a per-foot rate quoted over the phone means much.
That is worth reading before deciding between the two products people call leaf guard, because the harder a roof is to reach, the more expensive it is to change your mind about what is on it.
A cover that clips over your existing gutter is reversible: removal is $1.50 to $3 a foot and the gutter underneath is untouched. A one-piece system, where the hood and the gutter are a single extruded unit, is not. Taking the hood off means taking the gutter off, because they are the same object, so undoing it is a full replacement, $2 to $4 a foot to remove, then $8 to $17 a foot for a new run. On a 150-foot house that is roughly $1,500 to $3,150 to get back to a conventional gutter, before the access surcharge that Salisbury height adds to both halves.
That asymmetry is essentially never mentioned at the point of sale, and it is the single most important fact about this category. So: ask any company quoting a one-piece system what removal would cost, and note whether the answer comes readily.
On the product itself, reverse-curve uses surface tension to carry water around a curved lip into a narrow slot. It works, up to a flow rate. Charlotte peaks at 7.27 inches of rain an hour over a five-minute burst, and past the point where surface tension holds, water leaves the nose in a straight line and goes over the slot entirely. Under willow oak and pine we recommend stainless micro-mesh at $10 to $18 a foot instead: finer aperture, roughly half the price, and it unclips.

What Salisbury itself changes
What drops on these roofs
The historic districts have the mature, deliberately planted street canopy of a town that has been prosperous for a very long time, with large hardwoods over the roofs on most of those streets. It is a heavy and sustained debris load, and it falls on buildings where the cleaning access is among the most difficult in the service area. The newer development at the edges of the city is conventional and much lighter.
The housing in Salisbury
Salisbury holds one of the most substantial historic housing stocks in North Carolina: the Salisbury Historic District with hundreds of contributing buildings, plus North Main Street from roughly 1900 to 1930, Brooklyn-South Square and North Long Street-Park Avenue. Late Victorian, Colonial Revival and Craftsman bungalows in real quantity. On buildings of that quality the gutter is part of the elevation rather than a utility bolted to it, and a stock K-style run in a modern finish is a visible compromise on a house that was designed with something else in mind.