Tree Service in Diamond Bar, CA
Diamond Bar took its name from a 1918 ranch brand, and today it protects four native trees even in back yards. We trim and remove your yard trees, and our Diamond Bar tree service tells you when Chapter 22.38 means a permit comes first.
Tree care in Diamond Bar
A planned town on old ranch land
In Diamond Bar, native oak, walnut, sycamore and willow trees are protected by city rules, even on private land. Removing one, or pruning it heavily, needs a permit under Chapter 22.38. The city takes its name from the “diamond over a bar” cattle brand Frederic Lewis registered in 1918. Transamerica bought the ranch in the 1950s and built one of the nation's first master-planned communities, starting in 1959. The city formed in 1989. The state's new fire hazard maps include Diamond Bar, and homes in High or Very High zones can face defensible-space rules.
In Diamond Bar, a native oak in your back yard is still protected.
Who governs tree work in Diamond Bar
City of Diamond Bar
Tree work in Diamond Bar follows the City of Diamond Bar's rules. Native oak, walnut, sycamore and willow trees are protected by city ordinance even on private property, and extensive pruning of one needs a permit first (Diamond Bar Municipal Code Chapter 22.38). Under California Civil Code section 3346, no one may cut any part of a neighbor's tree that does not overhang their own property. Rules change. Confirm current requirements with the jurisdiction before work begins — filing a permit is the property owner's responsibility, not ours.
Services
On sloped Diamond Bar lots: native pruning, removals, stump grinding
Supreme Tree Experts prunes natives, removes trees and grinds stumps on sloped Diamond Bar lots, where native oaks are protected. For a fallen limb on a steep drive at any hour, Diamond Bar owners reach Supreme Tree Experts.
Tree Removal
We remove yard trees in Diamond Bar after we name each one. Four native species, including oak, sycamore and willow, are protected even on private land. Removing one of those needs a city permit first.
Tree Trimming & Pruning
Our crews prune natives lightly, taking out dead and crossing branches. Heavy pruning of a protected tree needs a permit under Chapter 22.38. Small cuts over the years are also kinder to the tree.
Stump Grinding & Stump Removal
On sloped lots, we grind stumps low so the ground can be replanted or turfed. Hillside grade and the way in drive much of the cost here. We plan the grinder's path before the work starts.
Palm Tree Trimming & Skinning
We cut brown fronds and seed stalks from palms before dry winds strip them. Palms are not on the city's protected native list, so trimming needs no permit. Skinning is done from our palm lift truck, parked on the drive.
Emergency Tree Service
We answer 24/7 when a limb falls across a steep drive or onto a roof. The same dry winds that raise fire risk here can snap limbs at any hour. Clearing the drive comes first.
Tree Maintenance
Each year our crew checks yard trees for decay, heavy limbs and root lift. Homes here went up from 1959 on, in one of the nation's first master-planned communities. Many trees planted then are now mature.
Tree Height Reduction
We cut tall crowns, and limbs that hang over a neighbor's yard, back to side branches. State law bars cutting any part of a tree that does not overhang your land. We trim only your side of the line.
Estate Tree Care
Larger lots may hold several protected natives, and we look after them on one yearly plan. Each gets light pruning, a health check and room around its roots. Any big cut starts with a check of the city rule.
Tree Shaping & Shrub Shearing
We keep hedges and shrubs sheared tidy and trimmed back from the house. On hillside yards, we cut to follow the slope so the top line looks even from the street. Clippings are chipped and hauled off.
Landscaping
We plan planting to fit the state's new fire hazard maps, which include Diamond Bar. In High or Very High zones, defensible-space rules under Public Resources Code 4291 may apply. Plants are spaced to suit.
Hardscape
We build patios, paths and low walls that give sloped yards a firm edge. Any new work stays back from the roots of protected natives. We check the drip line of each one before we lay out a path.
Reviews to read before you book in Diamond Bar
Every word below was written by a customer on Google, not by us. Long reviews are shortened to fit the card — never reworded. None of them was left in Diamond Bar: they come from customers across Southern California. Read them for how a crew behaves on a job, then decide whether that is who you want in Diamond Bar.
“Great pricing & service. Highly competent with tricky jobs. We have used them for more than 10 years.”
Melanie Butler
Local Guide
“We got bids from five contractors. After I talked to them all and checked out their licenses and work, we decided to go with Supreme. … The job took a day and a half, and when they were done, they left the place immaculate.”
Hank Shaeffer
“Great tree trimmers! I’ve used Supreme Tree Experts twice to trim the palm trees in my yard. … The guys who come out are quick thorough, and clean. And very careful not to damage property.”
Emilie Pacheco
“These guys have worked on my property 3 times now. They are always on time and do a fantastic job. I highly recommend them!”
Ray Thompson
“After soliciting several quotes on some difficult yard work, we chose Supreme because of their licensed Arborist Temis … The crew was extremely hard working and we couldn’t believe their continuous work ethic on one of the hottest days of the year.”
Gary Brown
Local Guide
The questions worth asking any Diamond Bar tree company
6 of them, answered here for Diamond Bar. If yours is not here, call 877-787-7363 and ask.
Only the part over your side. You may trim branches that cross your property line, but talk to your neighbor first. State law bars cutting any part of a tree that does not overhang your land. If the tree is a protected native, heavy pruning needs a permit.
Native oak, walnut, sycamore and willow. The city protects these four natives even on private property. Chapter 22.38 of the Municipal Code sets out the rules. Ask the Planning Division if you are not sure what kind of tree you have.
For heavy pruning, yes. The city says extensive pruning of a protected tree needs a permit first. Chapter 22.38 of the Municipal Code has the details. Light pruning that takes out dead or crossing branches is also gentler on the tree, and a better habit over the years.
Check the state map. The State Fire Marshal's new Local Responsibility Area maps include Diamond Bar. In High or Very High zones, state building rules and defensible-space rules under Public Resources Code 4291 may apply. The city's website links to CAL FIRE's address lookup.
Yes — $600 for tree services, wherever the job is. Hillside grade, the way in, and any native covered by Chapter 22.38 drive most of the cost here.
Yes, 24/7. The state's fire maps include Diamond Bar, and the same dry winds that raise fire risk can snap limbs at any hour. Call 877-787-7363.
Three steps in Diamond Bar, and no surprises in between
- 01.
Name the tree
An arborist identifies each tree and notes if it is one of the four protected natives.
- Oak, walnut, sycamore, willow
- Neighbor's branches checked
- 02.
Permit if needed
Removal or extensive pruning of a protected tree needs a permit. The owner files with the city before work starts.
- Owner applies
- Chapter 22.38 rules
- 03.
Job day
The crew cuts, lowers and chips, then grinds any stump that needs to go.
- Rope-lowered sections
- Chips cleared away
How we handle Diamond Bar's protected natives and steep lots
Tree work goes wrong when it is rushed or under-equipped. We run our own 75-foot boom trucks, lift trucks, chippers and stump grinders, and every crew works under an ISA Certified Arborist — so the job gets done right the first time.
We hold California license #1002853 for both landscaping and tree and palm work, we are bonded, we carry general liability and every employee is on workers’ compensation.
ISA Certified Arborist
The free arborist visit starts with a name for each tree. If it's one of the four natives, Chapter 22.38 applies before any big cut.
Licensed, Bonded & Insured
Protected natives call for a careful crew. Ours holds state license #1002853 for tree service (C-61/D-49) and landscaping (C-27), carries a bond, and insures each worker.
Southern California Since 1985
Our family firm dates to 1985; the ranch brand this city is named for dates to 1918.
Our Own Equipment
Steep lots are no bar to our own boom trucks, which reach 75 feet; our own grinders take out the stumps.
Getting to Diamond Bar
Diamond Bar lies in the San Gabriel Valley of eastern Los Angeles County, about 27 miles east of downtown.
- ZIP code
- 91765