Need a tree service in Ontario, CA? We remove dead and hazardous trees, prune and thin overgrown canopies, trim palm fronds and seed pods, grind stumps, clear brush from lots and help clean up after Santa Ana wind damage across Ontario and the nearby Inland Empire cities. Street trees in the parkway belong to the City of Ontario and need Public Works approval before anyone removes them, so we check that first. Call (909) 479-2614 or send the estimate form, and we will talk through the tree, the access and the options before anything is scheduled.
Tree work we handle in Ontario
Most calls start with one problem tree and turn into a short list: a dead limb over the driveway, a fan palm full of brown fronds, a stump left from an old removal. We quote those together so the crew and the chipper only come out once. Here is what we do:
- Tree removal: dead, leaning, split and overgrown trees taken down in sections, with the wood and brush hauled away.
- Tree trimming and pruning: crown thinning, crown reduction, deadwood removal and clearance pruning over roofs, driveways and walls.
- Stump grinding: stumps and surface roots ground below grade so you can plant, lay sod or pour a slab.
- Emergency tree service: trees and limbs down on roofs, fences and cars after wind or storm. Call for storm damage and we will tell you how soon a crew can get there.
- Palm tree trimming: dead fronds, seed pods and trunk skinning on Mexican fan palms and date palms, plus palm removal.
- Land and lot clearing: trees, brush and stumps cleared from vacant lots, back corners and overgrown yards.
- Defensible space tree work: fire-safe pruning, ladder-fuel removal and spacing cuts around homes, using the CAL FIRE zone approach.
- Tree health assessment: an on-site look at decay, pests, lean and drought stress before you decide to keep or remove a tree.
Trees that grow in Ontario, and what goes wrong with them
Ontario's older neighborhoods carry the city's history in their trees. The median of Euclid Avenue, part of the Euclid Avenue Historic District, is lined with California pepper trees and other mature plantings that set the look of downtown. Around the Grove Avenue and College Park areas you still find big eucalyptus, Aleppo and Canary Island pines, ficus and old citrus or olive trees left from the city's farming days. Newer Ontario Ranch tracts are planted with younger street trees, crape myrtles, jacarandas and palms that grow fast in the heat.

Santa Ana winds, heat and drought
The biggest tree risk in Ontario is wind. Santa Ana wind events usually come between fall and early spring, when dry northeast winds pour down through the Cajon Pass and across the valley floor. The National Weather Service in San Diego issues wind advisories and high-wind warnings for the Inland Empire when gusts are expected, and those are the nights trees come down.
Wind exposes the weak points in a tree: dead limbs, co-dominant stems with a crack between them, a canopy so dense it acts like a sail, or roots damaged by trenching. Thinning the crown before the season lets wind pass through. Removing deadwood takes away the pieces most likely to fall. Long summers of heat add drought stress, which invites borers and bark beetles. The UC Integrated Pest Management program is a good source if you want to read about the pests and diseases we see on local trees.
Street trees and city rules in Ontario
Who owns a tree decides who can cut it. Trees in the parkway, the strip between the sidewalk and the curb, are City trees. Ontario's municipal code says no person may remove or relocate a parkway tree without prior authorization from the Public Works Agency, and removal is limited to reasons such as a safety hazard, a sight-distance hazard at an intersection, or a tree that is dead or diseased beyond correction. Homeowners are expected to keep parkway trees trimmed to about eight feet of clearance over the sidewalk, while the City handles major pruning. In HOA communities, the association usually maintains the parkway.
If a parkway tree is the problem, contact Ontario Parks and Streets Maintenance at (909) 395-2600 first. For trees on private property, rules can depend on your lot, any HOA covenants and any conditions on a recent project, so check with the City of Ontario before removing a large tree. We will point you to the right office and never cut a tree that needs approval until it is in hand.
Power lines are SCE's job first
Any tree within 10 feet of an overhead power line is work for a line-clearance crew, not a homeowner or a general tree crew. Southern California Edison asks property owners to notify it before anyone prunes or removes a tree near its lines, and it runs a make-safe program at no cost to the owner that clears the tree back from the wire so other crews can finish the job. Call SCE at 1-800-611-1911 before we schedule work near lines. Our guide to trees near power lines walks through the steps, and the tree care blog covers tree removal costs and Santa Ana wind prep.
How a job works with us
Here is how a job runs:
- Call or send the form. Tell us the tree and the problem.
- Site visit. We check the species, condition, access and nearby lines.
- Written estimate. The quote lists the trees, the work on each, how the wood and brush are handled, stump grinding if you want it, and any approvals you need from the City or your HOA.
- Work day. We protect what is underneath, rig limbs down and clean up.
Areas we serve around Ontario
We work across Ontario, including Downtown Ontario, the Euclid Avenue corridor, Park Center, Creekside and Ontario Ranch, and in the nearby cities of the west Inland Empire and Pomona Valley. Each city has its own street-tree and tree-preservation rules, and our city pages cover them. In Ontario you will see our crews near landmarks like Cucamonga-Guasti Regional Park, Toyota Arena and Ontario Mills.
- Tree service in Rancho Cucamonga, where heritage trees on private lots need a city permit to remove.
- Tree service in Upland, where only the City and its contractor work on street trees.
- Tree service in Chino, Chino Hills and Pomona, plus Montclair, Fontana, Claremont, Eastvale, Jurupa Valley, Rialto and La Verne on our service areas page.
Get an estimate
Tell us what is going on with your trees, and we will tell you honestly whether it needs pruning, a closer look or removal. Call (909) 479-2614 or use our contact page. Read about us and the FAQs.
Common questions
Do I need a permit to remove a tree in Ontario, CA?
It depends on where the tree is. A tree in the parkway between the sidewalk and the curb belongs to the City, and Ontario's code says it may not be removed without prior Public Works authorization. For a tree on private property, check with the City of Ontario and your HOA before removing a large tree, since project conditions and covenants can apply.
Who trims the street tree in front of my house?
In most Ontario neighborhoods the City maintains parkway trees, handles major pruning and expects owners to keep about eight feet of clearance over the sidewalk. In HOA communities the association usually maintains the parkway. Call Ontario Parks and Streets Maintenance at (909) 395-2600 to request City tree work or ask who is responsible.
Can you trim a tree that is touching power lines?
Not until Southern California Edison has been called. Only qualified line-clearance workers may work within 10 feet of overhead lines. Call SCE at 1-800-611-1911; it can make the tree safe at no cost to you, and then we can prune or remove the rest of the tree away from the wires.
How much does tree removal cost in Ontario?
Price depends on the tree's height and spread, how close it is to the house, lines or a wall, whether limbs must be roped down, access for the chipper, and whether you want the stump ground. A small tree in an open yard is a short job; a tall eucalyptus over a roof is a full day. We give a written estimate after seeing the tree.
When is the best time to trim trees here?
Most shade trees prune best in late fall and winter when they are dormant. Deadwood removal and crown thinning are best done before the Santa Ana wind season. Palms are trimmed when fronds brown and before seed pods drop. Avoid heavy pruning during summer heat waves, which adds stress to trees already short on water.
What should I do if a tree falls on my house?
Get everyone out of the damaged area and stay well away from any wires, which may be live. Call SCE if lines are involved and 911 if anyone is hurt. Take photos for your insurance company, then call us for storm damage. We will tell you how soon a crew can come and what can be done safely right away.
How can I check a tree contractor before hiring?
Look up the contractor's license on the California Contractors State License Board website and confirm the classification covers tree work, such as C-49 Tree and Palm. Ask for a written estimate that lists every tree and what will be done, and ask how they handle power lines, parkway trees and cleanup.








