Tree Trimming & Pruning in Dublin, CA

Tree trimming and pruning keep a tree safe and in proportion to the house it shades. In Dublin, the most common requests are lifting limbs off a roof or solar array, thinning a dense canopy before winter wind, taking out deadwood over a patio, and raising low branches over a driveway or sidewalk. The goal each time is to remove what needs to go and leave a tree that grows back in a sound shape.

Why the way we cut matters here

Dublin's heritage tree ordinance exempts pruning that follows the International Society of Arboriculture's tree pruning guidelines. It also treats extreme pruning that permanently disfigures a tree as an "effective removal," which needs a permit. In other words, the city does not just care whether a big oak or redwood stays standing; it cares whether it is pruned properly. Topping, lion-tailing and stubbing are out. We cut at the branch collar, remove a limited share of live canopy at a time, and leave the natural form intact.

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Common trimming jobs

• Roof and gutter clearance. Limbs rubbing shingles or tile, or dropping leaves into gutters.
• Solar clearance. Shade on panels costs output; we prune back the branches that cast it.
• Crown thinning. Selective removal of interior branches so wind passes through instead of loading the tree like a sail.
• Crown raising. Lifting low limbs over walkways, driveways and the street.
• Deadwood removal. Dead limbs in a mature tree are the ones most likely to fall.
• Structural pruning of young trees. Picking a single leader and spacing scaffold limbs while the cuts are still small.

Fire-season trimming

Homes near the open hills benefit from pruning with CAL FIRE's defensible space numbers in mind. That guidance calls for removing branches within 10 feet of a chimney or stovepipe outlet, removing tree branches at least 6 feet up from the ground, keeping a vertical gap of three times a shrub's height between the shrub and the lowest limbs, and keeping branches in the first 30 feet roughly 10 feet from other trees. We will tell you which of those your trees need, and which would harm the tree to force.

Timing

Most deadwood and clearance pruning can happen any time of year. Heavier structural work on many deciduous trees goes best when they are dormant. For oaks, we keep cuts modest and avoid big wounds, because UC oak guidance notes that large pruning wounds can let decay in.