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Best Tree Services in Los Osos, CA (2026)

41 tree services ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Los Osos: Greenvale Tree Company, CR Score 92/100; 5.0★ from 35 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): CalWest Service - Tree Services, posts 24/7 hours; ranked #2 of 41.

  3. 6

    Most-reviewed: Coastal Tree Experts, Inc, 224 Google reviews at 5.0★, the most of 41 ranked; ranked #6.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

41 Los Osos tree services are ranked here by CR Score, from 8 published factors. 21 are open 24/7, 27 open Saturdays and 22 open Sundays, based on posted hours. The median Google rating is 5.0★ across 41 rated businesses.

Most of this list also appears on the Tree services in San Luis Obispo ranking. See Tree services in San Luis Obispo

Top 10 tree services in Los Osos at a glance

Top 10 tree services in Los Osos at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Greenvale Tree Company925.0★ (35)Los Osos24/7Overall
2CalWest Service - Tree Services915.0★ (118)Atascadero, 15 mi away24/7Emergencies
3CalWest Tree Service In SLO914.9★ (65)San Luis Obispo, 9 mi away24/7—
4CalWest Tree Service905.0★ (152)Paso Robles, 23 mi away24/7—
5Blue Diamond Tree and Landscape865.0★ (75)San Luis Obispo, 2 mi awaySat—
6Coastal Tree Experts, Inc865.0★ (224)Los Osos—Most reviews
7C & C Tree Services865.0★ (26)Paso Robles, 19 mi away24/7—
8JTS, Inc.865.0★ (18)Nipomo, 16 mi away24/7—
9San Luis Obispo Tree Service855.0★ (7)San Luis Obispo, 10 mi away24/7—
10Cobb's Tree Service854.8★ (32)Arroyo Grande, 23 mi away24/7—

The 41 best tree services in Los Osos, 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.

  8. #8 JTS, Inc.

    Based in Nipomo, 16 mi away

    86/100CR Score

    Ranked #8 because of its Google rating and availability: 5.0★ from 18 Google reviews, open 24/7.

    • 5.0★ from 18 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for JTS, Inc.(805) 489-9191

  19. #19 Classic Tree

    Based in Arroyo Grande, 18 mi away

    82/100CR Score

    Ranked #19 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “Tree service”.

    • 5.0★ from 18 Google reviews
    Hours
    Mon–Sun 8 AM–5:30 PM
    View profile for Classic Tree(805) 977-5546

  20. #20 Coastal Tree Experts

    Based in San Luis Obispo, 10 mi away

    79/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Tree service”.

    • 4.7★ from 13 Google reviews
    Hours
    Mon–Sat 8 AM–5 PM · Sun closed
    Address
    78MR+35, San Luis Obispo, CA 93401
    View profile for Coastal Tree Experts(805) 772-7970

  21. #21 4th Generation Tree

    Based in Templeton, 18 mi away

    79/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.7★ from 29 Google reviews, listed on Google as “Tree service”.

    • 4.7★ from 29 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    725 S Main St, Templeton, CA 93465
    View profile for 4th Generation Tree(805) 462-2020

  23. #23 Sams Tree Service

    Based in Atascadero, 23 mi away

    79/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.7★ from 42 Google reviews, listed on Google as “Tree service”.

    • 4.7★ from 42 Google reviews
    Hours
    Mon–Fri 8 AM–8 PM · Sat 9 AM–5 PM · Sun closed
    View profile for Sams Tree Service(805) 610-8266

Tree services ranked #26 to #32

#1 to #25 are shown in full above. Here are #26 to #32, in CR Score order; each links to its profile. We publish the top 32 of 41 ranked tree services here; the rest are on their profiles.

tree services in Los Osos, ranks 26 to 32
RankBusinessCR ScoreGoogle ratingDistance
26Family Tree Service775.0★ (5)15 mi
30Montes de Oca Gardening745.0★ (4)23 mi
31San Paso Enterprises745.0★ (3)21 mi
32A & T Arborists is now 4G Tree724.0★ (12)16 mi

How much do tree services cost in Los Osos?

National price ranges in USD, not adjusted for Los Osos. Each row names its basis and the month we checked it.

How much do tree services cost in Los Osos?
JobLowTypicalHighBasisChecked
Tree removal$200$750$2,000Per tree: typical range of customer-reported removals. US national rangeOctober 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 Los Osos tree services

We scored 41 Los Osos 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Los Osos data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Tree services in Los Osos: frequently asked questions

Who is the best tree service in Los Osos?

By CR Score, the highest-ranked tree service in Los Osos, CA is Greenvale Tree Company with a CR Score of 92/100. It has 5.0★ from 35 Google reviews. It is open 24/7. CalWest Service - Tree Services (#2) and CalWest Tree Service In SLO (#3) follow. We ranked 41 tree services on 8 factors, last updated October 22, 2026.

How many tree services are there in Los Osos?

ContractorsRanked ranks 41 tree services serving Los Osos, CA. 2 of them are based in Los Osos; the rest serve it from nearby towns. Counts are as of October 2026.

Which tree services in Los Osos are open 24/7?

21 ranked tree services in Los Osos post 24/7 hours. The highest-ranked are Greenvale Tree Company (#1), CalWest Service - Tree Services (#2) and CalWest Tree Service In SLO (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which tree services in Los Osos work on weekends?

27 of 41 ranked tree services post Saturday hours and 22 post Sunday hours. The highest-ranked open Saturdays are Greenvale Tree Company (#1), CalWest Service - Tree Services (#2) and CalWest Tree Service In SLO (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does tree removal cost in Los Osos?

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 Los Osos. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Los Osos tree services have?

The median Google rating among 41 rated tree services in Los Osos is 5.0★, with a median of 13 reviews. Coastal Tree Experts, Inc has the most, 224 reviews, and ranks #6. 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 Los Osos?

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 Los Osos

  1. October 2026: CR Scores recalculated for 41 tree services serving Los Osos.
  2. October 2026: 1 duplicate listing merged.

More tree services and Los Osos pages

Other trades in Los Osos