328 tree services ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Diamond Bar: Environmental Green Tree Care/ Killelea Landscape, CR Score 92/100; 5.0★ from 267 Google reviews; open 24/7.
Best for emergencies (open 24/7): POWER TREE SERVICE, posts 24/7 hours; ranked #2 of 328.
Most-reviewed: Juan Tree Service, 505 Google reviews at 4.9★, the most of 328 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
328 Diamond Bar tree services are ranked here by CR Score, from 8 published factors. 99 are open 24/7, 270 open Saturdays and 180 open Sundays, based on posted hours. The median Google rating is 4.9★ across 328 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Environmental Green Tree Care/ Killelea Landscape | 92 | 5.0★ (267) | Anaheim, 15 mi away | 24/7 | Overall |
| 2 | POWER TREE SERVICE | 89 | 5.0★ (30) | Adelanto, 2 mi away | 24/7 | Emergencies |
| 3 | Melendez Tree Service | 89 | 5.0★ (85) | Corona, 14 mi away | 24/7 | — |
| 4 | Reg's Tree Service | 89 | 5.0★ (217) | Fountain Valley, 25 mi away | 24/7 | — |
| 5 | Favor Tree Care | 88 | 5.0★ (69) | Anaheim, 15 mi away | 24/7 | — |
| 6 | D&N Tree Care Inc | 88 | 4.9★ (52) | Ontario, 11 mi away | 24/7 | — |
| 7 | Premier Tree Experts | 88 | 4.8★ (79) | Orange, 14 mi away | 24/7 | — |
| 8 | Specialty Tree Care Inc. | 87 | 4.9★ (44) | Alhambra, 12 mi away | 24/7 | — |
| 9 | HLI Tree Services | 87 | 5.0★ (451) | Corona, 24 mi away | Sat · Sun · Evenings | — |
| 10 | Juan Tree Service | 87 | 4.9★ (505) | Artesia, 11 mi away | Sat · Evenings | Most reviews |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 in Diamond Bar
Based in Anaheim, 15 mi away
Ranked #1 because of its Google rating and availability: 5.0★ from 267 Google reviews, open 24/7.
Based in Adelanto, 2 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 30 Google reviews, open 24/7.
Based in Corona, 14 mi away
Ranked #3 because of its Google rating and availability: 5.0★ from 85 Google reviews, open 24/7.
Based in Fountain Valley, 25 mi away
Ranked #4 because of its Google rating and availability: 5.0★ from 217 Google reviews, open 24/7.
Based in Anaheim, 15 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 69 Google reviews, open 24/7.
Based in Ontario, 11 mi away
Ranked #6 because of its Google rating and availability: 4.9★ from 52 Google reviews, open 24/7.
Based in Orange, 14 mi away
Ranked #7 because of its Google rating and availability: 4.8★ from 79 Google reviews, open 24/7.
Based in Alhambra, 12 mi away
Ranked #8 because of its Google rating and availability: 4.9★ from 44 Google reviews, open 24/7.
Based in Corona, 24 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 451 Google reviews, listed on Google as “Tree service”.
Based in Artesia, 11 mi away
Ranked #10 because of its Google rating and review volume: 4.9★ from 505 Google reviews, the most Google reviews on this list (505).
Based in Arcadia, 10 mi away
Ranked #11 because of its Google rating and availability: 5.0★ from 23 Google reviews, open 24/7.
Based in Orange, 16 mi away
Ranked #12 because of its Google rating and availability: 4.9★ from 53 Google reviews, open 24/7.
Based in Azusa, 9 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
Based in La Puente, 10 mi away
Ranked #14 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
Based in Diamond Bar
Ranked #15 because of its Google rating and availability: 4.9★ from 42 Google reviews, open 24/7.
Based in Fontana, 20 mi away
Ranked #16 because of its Google rating and availability: 4.9★ from 70 Google reviews, open 24/7.
Based in Riverside, 20 mi away
Ranked #17 because of its Google rating and availability: 4.8★ from 81 Google reviews, open 24/7.
Based in Pomona, 4 mi away
Ranked #18 because of its Google rating and availability: 4.9★ from 11 Google reviews, open 24/7.
Based in Chino, 15 mi away
Ranked #19 because of its Google rating and availability: 5.0★ from 54 Google reviews, open 24/7.
Based in Anaheim, 15 mi away
Ranked #20 because of its Google rating and availability: 4.7★ from 51 Google reviews, open 24/7.
Based in West Covina, 7 mi away
Ranked #21 because of its Google rating and availability: 4.7★ from 18 Google reviews, open 24/7.
Based in Upland, 9 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 65 Google reviews, listed on Google as “Tree service”.
Based in Pomona, 2 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Tree service”.
Based in La Puente, 7 mi away
Ranked #24 because of its Google rating and availability: 4.9★ from 64 Google reviews, open 24/7.
Based in Corona, 19 mi away
Ranked #25 because of its Google rating and availability: 4.9★ from 84 Google reviews, open 24/7.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 328 ranked tree services here; the rest are on their profiles.
20 more tree services within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Advanced Tree Service | 5.0★ (2) | 6 mi |
| Alex’s Tree Service | 5.0★ (2) | 3 mi |
| Arrow Green Tree Service | 3.0★ (2) | 8 mi |
| BERNAL TREE SURGEONS | 5.0★ (2) | 10 mi |
| Discount Tree Care Arborist, Inc. | 4.1★ (130) | 23 mi |
| Duke's Landscaping Services | 5.0★ (2) | 7 mi |
| Elite Tree Care | 3.9★ (7) | 10 mi |
| Exclusive Tree Services | 4.4★ (24) | 21 mi |
| Green Vista Tree Care | 5.0★ (2) | 10 mi |
| Guerrero Tree Services | 3.5★ (2) | 5 mi |
| Jamescapes | 5.0★ (2) | 6 mi |
| Limon's Tree Service - Affordable Tree Removal, Professional and Quality Tree Service | 5.0★ (2) | 9 mi |
| Lucero General Landscaping | 5.0★ (14) | 21 mi |
| Maya Tree Service | 5.0★ (2) | 8 mi |
| Ojeda tree service | 5.0★ (2) | 11 mi |
| Parcero Tree Service | 5.0★ (3) | 9 mi |
| Savosh Tree Services Brea | 5.0★ (2) | 9 mi |
| Special Tree Service | 4.0★ (2) | 10 mi |
| Valentin Tree Service Inc | 5.0★ (2) | 10 mi |
| Yorba Linda Tree Service | In Diamond Bar |
National price ranges in USD, not adjusted for Diamond Bar. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Tree removal | $200 | $750 | $2,000 | Per tree: typical range of customer-reported removals. US national range | October 2026 |
Late fall through winter, when most trees are dormant, is the usual time for planned pruning and removals. Emergency removals spike after windstorms, when waits for planned work get longer.
We scored 328 Diamond Bar tree services on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Diamond Bar data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |