Trimming and pruning covers the routine cutting work that keeps a tree healthy and safe without taking the whole thing down: removing dead or crossing branches, thinning a dense canopy so wind passes through instead of snapping limbs, cutting back growth that's crowding a roofline or power line, and shaping young trees so they don't develop weak forks later on. It's different from removal, which is a separate job for trees that are dead, hazardous, or in the way of construction. In a city like Yonkers, with a mix of older street trees, backyard maples and oaks on tight lots, and properties close to neighbors' fences, pruning is usually the maintenance work that prevents bigger problems (storm damage, disease, liability) down the road.
When comparing crews, look past the lowest quote. Ask whether the work is done by an ISA-certified arborist or under one's supervision, whether they carry liability and workers' comp insurance (this matters more here than almost any other detail, since climbing and rigging work near houses and power lines is genuinely dangerous), and whether they explain their cuts in terms of tree health rather than just "how much off." A good pruning job follows proper cutting standards, not just chainsaw speed.
We scored all 8 companies serving Yonkers on this basis. See how each one ranks in the best tree services guide, and check our methodology for exactly how we weigh licensing, insurance, reviews, and response quality.