🌳 Official Rankings
10 Best Tree Service in Ontario, CA (September 2026)
We compared 10 tree service serving Ontario and San Bernardino County, California, and ranked the top providers by verified reviews, ratings, and local reputation — 792 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by Isaac's Tree Service. Updated for September 2026.
- Tree Service ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 792
- Area code
- 909
#1
#2
#3
⭐ 4.9 · 109 reviews
1123 N Mountain Ave #106, Ontario, CA 91762
#4
⭐ 4.9 · 74 reviews
275 Sierra Pl, Upland, CA 91786
#5
#6
#7
#8
⭐ 4.7 · 67 reviews
3770 E Grand Ave, Pomona, CA 91766
#9
⭐ 4.8 · 15 reviews
6180 Riverside Dr Ste C # 24, Chino, CA 91710
#10
⭐ 4.7 · 19 reviews
8754 Edwin St, Rancho Cucamonga, CA 91730
Tree Service listed here serve Ontario, San Bernardino County, and nearby ZIP codes including 91758, 91761, 91762, 91764, 91798.