Top-Rated Contractors in Los Osos

50 verified

These contractors have SiteVetter Safety Scores of 85+ out of 100, indicating strong compliance with licensing, insurance, bonding, and federal requirements.

A SiteVetter Safety Score is a proprietary 0-100 compliance rating that aggregates contractor data from six sources: California Contractors State License Board (CSLB), SAM.gov federal exclusions, OSHA safety inspections, Department of Labor wage records, EPA environmental compliance, and building permit records from major California cities. In Los Osos, CA, 50 contractors currently hold Safety Scores of 85 or above, qualifying them as “top-rated” for 2026.

How We Calculate Safety Scores

Our Safety Score aggregates data from 6 sources: CSLB license status, workers' compensation coverage, contractor bonding, federal databases including SAM.gov (debarment), OSHA (safety violations), DOL (wage violations), and building permits. Scores of 85+ indicate contractors with active licenses, proper insurance, and clean federal records.

Top 50 Contractors by Safety Score

Ranked by SiteVetter Safety Score, highest first

#1

Concrete Scapes

License #1002843 · C-8

95/100

Grade A · Excellent

#2

Upper Story Design

License #919018 · B

95/100

Grade A · Excellent

#3

Al's Septic Pumping Service INC

License #883281 · C42

95/100

Grade A · Excellent

#4

Schalwitz Construction Company

License #294210 · B

95/100

Grade A · Excellent

#5

Fletcher Hesse Plumbing INC

License #979873 · C27

95/100

Grade A · Excellent

#6

A - American Sliding Door

License #835202 · C17

95/100

Grade A · Excellent

#7

Tutt Tree Crane and Service

License #606137 · A

95/100

Grade A · Excellent

#8

Zamora Landscaping

License #603958 · B

95/100

Grade A · Excellent

#9

Maximum Services Company

License #738081 · A

95/100

Grade A · Excellent

#10

Finley Electric

License #993746 · C10

95/100

Grade A · Excellent

#11

Bayside Painting

License #709877 · C33

95/100

Grade A · Excellent

#12

Mace Security Alarms INC

License #723167 · C10

95/100

Grade A · Excellent

#13

Sage Ecological Landscapes

License #871817 · C27

95/100

Grade A · Excellent

#14

J L S Construction & Home Repair INC

License #805415 · B

95/100

Grade A · Excellent

#15

Thorp Drywall

License #897477 · C-9

95/100

Grade A · Excellent

#16

California Joe's Painting Company INC

License #992221 · C33

95/100

Grade A · Excellent

#17

M B Concrete

License #938811 · B

95/100

Grade A · Excellent

#18

Snyder and Sons Landscapes INC

License #994765 · C27

95/100

Grade A · Excellent

#19

Service Star Plumbing & Heating

License #532544 · C16

95/100

Grade A · Excellent

#20

Earthscapes

License #598255 · C27

95/100

Grade A · Excellent

#21

Martinez R a & Son Const

License #616634 · B

95/100

Grade A · Excellent

#22

L & M Landscape

License #557912 · C27

95/100

Grade A · Excellent

#23

Wallace Mark Plumbing

License #661873 · C36

95/100

Grade A · Excellent

#24

Hague Quality Water the Water Improvement Group

License #701449 · C55

95/100

Grade A · Excellent

#25

Hanft Bryan Plumbing

License #993732 · C36

95/100

Grade A · Excellent

#26

Salamacha Construction

License #715373 · B

95/100

Grade A · Excellent

#27

B P General Engineering

License #773051 · A

95/100

Grade A · Excellent

#28

Garcia Bros Construction

License #813487 · B

95/100

Grade A · Excellent

#29

Slo Circuit Electrical

License #951325 · C10

95/100

Grade A · Excellent

#30

5 Star Electrical Services INC

License #973698 · C10

95/100

Grade A · Excellent

#31

Pacific Coast Painting & Design INC

License #725945 · C33

95/100

Grade A · Excellent

#32

Wells Concrete Works

License #944751 · C-8

95/100

Grade A · Excellent

#33

Wild Bloom

License #1001215 · A

95/100

Grade A · Excellent

#34

Little John Construction

License #727224 · B

95/100

Grade A · Excellent

#35

Olcott Construction

License #881337 · B

95/100

Grade A · Excellent

#36

Story's Construction

License #870176 · B

95/100

Grade A · Excellent

#37

Blue Diamond Landscapes INC

License #1066484 · C27

90/100

Grade A · Excellent

#38

Dousharm Jeff Construction

License #1036030 · B

90/100

Grade A · Excellent

#39

Botanica Nova INC

License #1017630 · C27

90/100

Grade A · Excellent

#40

Trm Landscape

License #1039941 · C27

90/100

Grade A · Excellent

#41

Sell James Drywall

License #1064490 · C-9

90/100

Grade A · Excellent

#42

Ferguson Electrical Systems

License #1064440 · C10

90/100

Grade A · Excellent

#43

Paul's Precision Painting Central Coast

License #1035020 · C33

90/100

Grade A · Excellent

#44

Current Power Systems

License #1025224 · C10

90/100

Grade A · Excellent

#45

Coast Heating & Air

License #1071377 · C20

90/100

Grade A · Excellent

#46

Kestrel Landscapes

License #1023918 · C27

90/100

Grade A · Excellent

#47

Johnson Electric & Controls

License #1012990 · C10

90/100

Grade A · Excellent

#48

Reis Ron Construction

License #813103 · B

85/100

Grade B · Good

#49

Montgomery Gary E Construction

License #791465 · B

85/100

Grade B · Good

#50

Mahaffey General Contractor

License #806460 · B

85/100

Grade B · Good

Finding the Best Contractors in Los Osos

When hiring a contractor in Los Osos, California, due diligence matters. The contractors listed above have been verified against multiple government databases and achieved Safety Scores of 85 or higher—placing them among the most compliant contractors in the area.

Our Safety Score considers:

  • License Status — Active CSLB license with proper classifications
  • Workers' Compensation — Current coverage to protect you from liability
  • Contractor Bond — Financial protection if work isn't completed
  • Federal Compliance — No debarments, wage violations, or safety citations

While a high Safety Score is a strong indicator of a reputable contractor, we always recommend getting multiple quotes, checking references, and verifying the contractor is licensed for your specific type of project.

Safety Scores are calculated based on publicly available government records and are updated weekly. For official verification, check directly with CSLB at cslb.ca.gov.