91/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 76 Google reviews, open 24/7.
- 5.0★ from 76 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 22844 Alice St, Hayward, CA 94541
Best Tree Services in Union City, CA (2026)
310 tree services ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Union City: Saunders Tree Service Inc, CR Score 91/100; 5.0★ from 76 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): BioScapes Tree Care Inc, posts 24/7 hours; ranked #2 of 310.
- 4
Most-reviewed: Luna's Tree Service, 253 Google reviews at 5.0★, the most of 310 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
310 Union City tree services are ranked here by CR Score, from 8 published factors. 64 are open 24/7, 213 open Saturdays and 141 open Sundays, based on posted hours. The median Google rating is 4.9★ across 310 rated businesses.
Top 10 tree services in Union City at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Saunders Tree Service Inc | 91 | 5.0★ (76) | Hayward, 6 mi away | 24/7 | Overall |
| 2 | BioScapes Tree Care Inc | 90 | 4.9★ (36) | Union City | 24/7 | Emergencies |
| 3 | Castillo Tree Service Inc | 89 | 4.9★ (41) | Hayward, 5 mi away | 24/7 | — |
| 4 | Luna's Tree Service | 89 | 5.0★ (253) | East Palo Alto, 10 mi away | Sat · Sun | Most reviews |
| 5 | EC Tree Service Inc | 89 | 5.0★ (103) | Redwood City, 16 mi away | 24/7 | — |
| 6 | ArborTech Inc. | 88 | 5.0★ (85) | Ashland, 16 mi away | 24/7 | — |
| 7 | Preferred Expert Tree Service Inc | 88 | 5.0★ (66) | Dublin, 15 mi away | 24/7 | — |
| 8 | JC Tree Service | 88 | 5.0★ (82) | Antioch, 18 mi away | 24/7 | — |
| 9 | NewVista Tree Service | 87 | 5.0★ (89) | San Jose, 20 mi away | 24/7 | — |
| 10 | Emerald View Tree Service | 87 | 5.0★ (232) | San Jose, 18 mi away | Sat · Sun · Evenings | — |
The 310 best tree services in Union City, ranked
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.
Based in Union City
90/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 36 Google reviews, open 24/7.
- 4.9★ from 36 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1100 Pacific St, Union City, CA 94587
Based in Hayward, 5 mi away
89/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 41 Google reviews, open 24/7.
- 4.9★ from 41 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 25798 Franklin Ave, Hayward, CA 94544
Based in East Palo Alto, 10 mi away
89/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 253 Google reviews, listed on Google as “Tree service”.
- 5.0★ from 253 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
- Address
- 350 Demeter St #4b, East Palo Alto, CA 94303
Based in Redwood City, 16 mi away
89/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 103 Google reviews, open 24/7.
- 5.0★ from 103 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 991 Round Hill Rd, Redwood City, CA 94061
Based in Ashland, 16 mi away
88/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 85 Google reviews, open 24/7.
- 5.0★ from 85 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Dublin, 15 mi away
88/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 66 Google reviews, open 24/7.
- 5.0★ from 66 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Antioch, 18 mi away
88/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 82 Google reviews, open 24/7.
- 5.0★ from 82 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in San Jose, 20 mi away
87/100CR ScoreRanked #9 because of its Google rating and availability: 5.0★ from 89 Google reviews, open 24/7.
- 5.0★ from 89 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 545 Meridian Ave #26231, San Jose, CA 95126
Based in San Jose, 18 mi away
87/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 232 Google reviews, listed on Google as “Tree service”.
- 5.0★ from 232 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
- Address
- 3333 Pepper Tree Ln, San Jose, CA 95127
Based in San Leandro, 13 mi away
86/100CR ScoreRanked #11 because of its Google rating and availability: 4.7★ from 49 Google reviews, open 24/7.
- 4.7★ from 49 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 520 Doolittle Dr, San Leandro, CA 94577
Based in Danville, 14 mi away
86/100CR ScoreRanked #12 because of its Google rating and availability: 4.7★ from 49 Google reviews, open 24/7.
- 4.7★ from 49 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9000 Crow Canyon Rd #622, Danville, CA 94506
#13 All Star Tree
Based in California City, 1 mi away
86/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Tree service”.
- 5.0★ from 27 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
Based in Antioch, 23 mi away
86/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 74 Google reviews, open 24/7.
- 5.0★ from 74 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#15 CalTreez
Based in Fremont, 3 mi away
86/100CR ScoreRanked #15 because of its Google rating and availability: 4.2★ from 15 Google reviews, open 24/7.
- 4.2★ from 15 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4555 Thornton Ave, Fremont, CA 94536
Based in Alameda, 10 mi away
86/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 81 Google reviews, listed on Google as “Tree service”.
- 4.9★ from 81 Google reviews
- Hours
- Mon–Sat 7 AM–8 PM · Sun 7 AM–5 PM
Based in Redwood Shores, 17 mi away
85/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 27 Google reviews, open 24/7.
- 5.0★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 259 Sylvan Way, Emerald Hills, CA 94062
Based in Dublin, 7 mi away
85/100CR ScoreRanked #18 because of its Google rating and availability: 4.8★ from 10 Google reviews, open 7 days a week.
- 4.8★ from 10 Google reviews
- Emergency service
- Hours
- Mon–Sat 7 AM–9 PM · Sun 9 AM–7 PM
Based in Dublin, 13 mi away
85/100CR ScoreRanked #19 because of its Google rating and availability: 4.7★ from 22 Google reviews, open 24/7.
- 4.7★ from 22 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in San Jose, 18 mi away
85/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 28 Google reviews, open 24/7.
- 5.0★ from 28 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 602 Flagler St, San Jose, CA 95127
Based in Alameda, 17 mi away
85/100CR ScoreRanked #21 because of its Google rating and availability: 4.9★ from 49 Google reviews, open 24/7.
- 4.9★ from 49 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Alamo, 6 mi away
85/100CR ScoreRanked #22 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Campbell, 23 mi away
85/100CR ScoreRanked #23 because of its Google rating and availability: 4.9★ from 49 Google reviews, open 24/7.
- 4.9★ from 49 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1095 Hacienda Ave, Campbell, CA 95008
Based in Antioch, 11 mi away
84/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Tree service”.
- 5.0★ from 40 Google reviews
- Hours
- Mon–Sun 6 AM–9 PM
Based in Foster City, 5 mi away
84/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 20 Google reviews, listed on Google as “Tree service”.
- 4.9★ from 20 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat–Sun 8 AM–6 PM
Tree services ranked #26 to #50
#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 310 ranked tree services here; the rest are on their profiles.
Also serving Union City
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 |
|---|---|---|
| Absolute Best Care Tree Service | 5.0★ (15) | 25 mi |
| Bigg Tree Rooter & Plumbing | 4.9★ (274) | 21 mi |
| Brush Hog Tree Care Inc. | 5.0★ (145) | 24 mi |
| C&C Tree Solutions | 5.0★ (4) | 17 mi |
| Cagwin & Dorward | 5.0★ (1) | In Union City |
| Cbc Tree Service | 3.8★ (18) | 17 mi |
| Encinal Tree Service | 2.0★ (2) | 12 mi |
| Expert Tree Service | 5.0★ (7) | 19 mi |
| Hernandez Tree Service | 5.0★ (2) | 7 mi |
| Louis Tree Service | 5.0★ (5) | 18 mi |
| Marvy's Landscape Services | 3.0★ (2) | 18 mi |
| New Sky Tree Service | 4.6★ (36) | 18 mi |
| P & J Tree Service Inc. | 4.5★ (17) | 23 mi |
| Partidas Tree Service | Tree Removal Contractor, Tree Cutting Service | 3.0★ (2) | 5 mi |
| Peninsula Tree Care | 5.0★ (5) | 15 mi |
| Redwood City Tree Service Pros | 5.0★ (4) | 16 mi |
| Samber Landscape and Tree Care | 4.5★ (2) | 14 mi |
| The Best Garden & Trees Services | 5.0★ (2) | 16 mi |
| Tree Service Alameda | 5.0★ (2) | 18 mi |
| Tree Service South San Francisco | 5.0★ (2) | 18 mi |
How much do tree services cost in Union City?
National price ranges in USD, not adjusted for Union City. 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 |
When to hire a tree service in California
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.
How we ranked Union City tree services
We scored 310 Union City 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 Union City 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 |
Tree services in Union City: frequently asked questions
Who is the best tree service in Union City?
By CR Score, the highest-ranked tree service in Union City, CA is Saunders Tree Service Inc with a CR Score of 91/100. It has 5.0★ from 76 Google reviews. It is open 24/7. BioScapes Tree Care Inc (#2) and Castillo Tree Service Inc (#3) follow. We ranked 310 tree services on 8 factors, last updated October 22, 2026.
How many tree services are there in Union City?
ContractorsRanked ranks 310 tree services serving Union City, CA. 1 of them is based in Union City; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which tree services in Union City are open 24/7?
64 ranked tree services in Union City post 24/7 hours. The highest-ranked are Saunders Tree Service Inc (#1), BioScapes Tree Care Inc (#2) and Castillo Tree Service Inc (#3). Swell Emergency Tree Removal Service (#18) also lists emergency service. Hours come from each business's Google listing as of October 2026, so call to confirm.
Which tree services in Union City work on weekends?
213 of 310 ranked tree services post Saturday hours and 141 post Sunday hours. The highest-ranked open Saturdays are Saunders Tree Service Inc (#1), BioScapes Tree Care Inc (#2) and Castillo Tree Service Inc (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does tree removal cost in Union City?
Tree removal typically costs $200 to $2,000, with $750 typical (Per tree: typical range of customer-reported removals. US national range). This is a national range, not adjusted for Union City. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Union City tree services have?
The median Google rating among 310 rated tree services in Union City is 4.9★, with a median of 13 reviews. Luna's Tree Service has the most, 253 reviews, and ranks #4. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire a tree service in Union City?
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.
How does ContractorsRanked rank tree services?
Each tree service gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Update log for Union City
- October 2026: CR Scores recalculated for 310 tree services serving Union City.
- October 2026: 6 duplicate listings merged.
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