Tree Pruning in Palo Alto, CA
Tree pruning in Palo Alto is selective cutting to improve a tree's health, strength and lifespan. It covers removing deadwood, thinning a dense crown so wind passes through, and shaping young trees so they develop a strong structure. If the tree is protected under Palo Alto's ordinance, most pruning requires posting a public notice on the property at least seven days in advance.
How do I get a free estimate?
Fill out this short form and tell us about your tree. A licensed local tree professional will follow up.
What is the difference between pruning and trimming?
Pruning is about the tree's health and structure, while trimming is about clearance around buildings, driveways and lines. In practice:
| Pruning | Trimming | |
|---|---|---|
| Goal | Health, strength, long-term form | Clearance and tidiness |
| Typical cuts | Deadwood, crossing limbs, crown thinning, structural pruning | Shortening limbs off roofs, driveways and views |
| Who should plan it | Ideally an ISA Certified Arborist | An experienced tree crew |
Pruning types you'll hear about:
- Deadwood removal: taking out dead, diseased or broken branches before they fall.
- Crown thinning: selectively removing interior branches to reduce weight and wind resistance without changing the tree's shape.
- Crown raising: removing lower limbs for clearance underneath.
- Structural pruning of young trees: choosing a dominant leader and well-spaced branches early, which prevents weak forks later.
How often should trees be pruned?
Most mature landscape trees benefit from an inspection and light pruning every three to five years, and young trees every year or two while their structure forms. Frequency depends on species, age and site. Fast growers near structures may need more frequent attention, while established native oaks generally do best with minimal, careful pruning. Removing dead, diseased or broken branches can be done whenever it's needed.
Do I need an ISA Certified Arborist for pruning?
For protected or valuable trees, yes, we recommend an ISA Certified Arborist. Certification shows training in tree biology and pruning standards. In Palo Alto, any arborist report the city requires, such as for a removal permit, must be prepared by an ISA Certified Arborist or a registered ASCA consulting arborist until the city finalizes its designated-arborist list. An arborist can also tell you whether your tree is protected and which cuts would exceed the city's pruning limits.
What is the protected-tree maintenance notice?
It's a public notice you must post at least seven days before pruning a protected tree. Under PAMC 8.10.070(b), the notice goes on the property where the public can see it. It describes the tree (species, size, location), the work date, pruning standards and a contact phone number. The city also asks owners to submit its Protected Tree Maintenance Notification Form. Exemptions: removing dead, diseased or broken branches, and protected trees less than five years old. See the permit guide for links to the city's forms.
What other tree services might I need?
Permit-aware removal of hazardous, dead or problem trees.Tree trimming
Clearance from roofs, driveways, views and service drops.Stump grinding
Grind stumps below grade so you can replant or re-landscape.Emergency tree service
Storm damage, split trunks and trees on structures.Palo Alto permit guide
Protected trees, arborist reports and how to apply.