ZipRecruiter

Log In

1

Maintenance Assistant Jobs in Riverside, CA (NOW HIRING)

Costco Wholesale Corporation

Maintenance Assistant

Ontario, CA · On-site

$16.25 - $20.50/hr

Position Summary Provides janitorial services and general maintenance of warehouse and grounds. Provides a high level of member service.. Job Duties * Cleans warehouse floors, offices, break room ...

Costco Wholesale Corporation

Maintenance Assistant

Corona, CA · On-site

$16.75 - $21.25/hr

Position Summary Provides janitorial services and general maintenance of warehouse and grounds. Provides a high level of member service.. Job Duties * Cleans warehouse floors, offices, break room ...

Costco Wholesale Corporation

Maintenance Assistant

Ontario, CA · On-site

$16.25 - $20.50/hr

Position Summary Provides janitorial services and general maintenance of warehouse and grounds. Provides a high level of member service.. Job Duties * Cleans warehouse floors, offices, break room ...

Costco Wholesale Corporation

Maintenance Assistant

Irvine, CA · On-site

$17.25 - $22/hr

Position Summary Provides janitorial services and general maintenance of warehouse and grounds. Provides a high level of member service.. Job Duties * Cleans warehouse floors, offices, break room ...

Costco Wholesale Corporation

Maintenance Assistant

Ontario, CA · On-site

$16.25 - $20.50/hr

Position Summary Provides janitorial services and general maintenance of warehouse and grounds. Provides a high level of member service.. Job Duties * Cleans warehouse floors, offices, break room ...

Costco Wholesale Corporation

Maintenance Assistant

Ontario, CA · On-site

$16.25 - $20.50/hr

Position Summary Provides janitorial services and general maintenance of warehouse and grounds. Provides a high level of member service.. Job Duties * Cleans warehouse floors, offices, break room ...

Sunlit Gardens

Maintenance Assistant

Rancho Cucamonga, CA · On-site

$18 - $20/hr

The maintenance position is responsible for the facility plant maintenance. Days and Hours on Duty: Tuesday-Saturday 8:30-5:00 Maintenance workers are on duty at the facility daily. (See Personnel ...

People First Employment

Be Seen First

Industrial Maintenance/ Assistant

City Of Industry, CA · On-site

$24/hr

People First Employment is seeking an experienced Industrial Maintenance Assistant for a 4-month project assignment in the City of Industry. We are looking for a hands-on candidate who has previous ...

Costco Wholesale Corporation

Maintenance Assistant

Tustin, CA · On-site

$17.25 - $22/hr

Position Summary Provides janitorial services and general maintenance of warehouse and grounds. Provides a high level of member service.. Job Duties * Cleans warehouse floors, offices, break room ...

previous pagenext page

Showing results 21-40

All JobsMaintenance JobsMaintenance Assistant JobsMaintenance Assistant Jobs in Riverside, CA

Maintenance Assistant information

See Riverside, CA salary details

$11

$18

$25

How much do maintenance assistant jobs pay per hour?

As of Aug 22, 2026, the average hourly pay for maintenance assistant in Riverside, CA is $18.85, according to ZipRecruiter salary data. Most workers in this role earn between $16.30 and $20.58 per hour, depending on experience, location, and employer.

What does a maintenance assistant do?

Maintenance assistants keep a facility clean, tidy, and well-maintained. You find maintenance assistants in nearly all industries--from large corporations to small retirement homes. Maintenance assistants not only need to clean surfaces, equipment, and floors, they also need to be able to fix minor plumbing, electrical, or carpentry issues. Experience in cleaning buildings and other handyman skills are essential qualifications for this position, though most companies also provide on-the-job training.

What does a maintenance assistant do?

A Maintenance Assistant supports the upkeep and repair of buildings, equipment, and facilities. Their tasks typically include performing minor repairs, assisting with preventative maintenance, handling basic plumbing or electrical issues, and ensuring that work areas are clean and organized. They often work under the supervision of a Maintenance Supervisor or Facilities Manager, responding to service requests and helping to ensure a safe and functional environment. Maintenance Assistants play a vital role in keeping facilities running smoothly and efficiently.

What are the key skills and qualifications needed to thrive as a maintenance assistant, and why are they important?

To thrive as a Maintenance Assistant, you need a foundational understanding of building systems, basic repair skills, and often a high school diploma or equivalent. Familiarity with hand and power tools, work order management systems, and sometimes OSHA safety certifications are typically required. Strong attention to detail, reliability, and effective communication help Maintenance Assistants work efficiently and support their teams. These skills ensure that facilities remain safe, functional, and well-maintained, minimizing downtime and hazards.

What are some common challenges maintenance assistants face in a typical workday, and how can they effectively address them?

Maintenance Assistants often encounter challenges such as juggling multiple repair requests, troubleshooting unfamiliar equipment, and working under tight time constraints. To manage these effectively, it's important to prioritize tasks based on urgency and safety, communicate clearly with supervisors and team members, and be proactive in seeking guidance or training when faced with new issues. Developing strong organizational skills and maintaining a positive, solution-oriented attitude can also help Maintenance Assistants navigate these challenges successfully.

What is the difference between Maintenance Assistant vs Maintenance Technician?

AspectMaintenance AssistantMaintenance Technician
CredentialsHigh school diploma or equivalent; some certifications may be preferredHigh school diploma; technical certifications or licenses often required
Work EnvironmentResidential, commercial, or industrial facilities; assisting with basic maintenance tasksSimilar environments; performing more complex repairs and troubleshooting
Employer & Industry UsageProperty management, facilities management, hospitalityFacilities management, manufacturing, property management
Common Search & Comparison IntentUnderstanding entry-level roles, basic responsibilitiesSeeking advanced skills, certifications, or career progression

The Maintenance Assistant typically performs basic maintenance tasks under supervision, requiring minimal certifications. Maintenance Technicians handle more complex repairs and troubleshooting, often with specialized certifications. Both roles are common in property management and facilities industries, but Maintenance Technicians usually have more technical training and responsibilities.

How much does a maintenance assistant earn?

The average salary for a maintenance assistant typically ranges from $25,000 to $40,000 per year, depending on experience, location, and the industry. Entry-level positions may start lower, while experienced assistants or those with specialized skills can earn higher wages. Certifications in safety or technical skills can also influence earning potential.
More about Maintenance Assistant jobs

What are the most commonly searched types of Maintenance jobs in Riverside, CA?

The most popular types of Maintenance jobs in Riverside, CA are:

What are popular job titles related to Maintenance Assistant jobs in Riverside, CA?

For Maintenance Assistant jobs in Riverside, CA, the most frequently searched job titles are:

What job categories do people searching Maintenance Assistant jobs in Riverside, CA look for?

The top searched job categories for Maintenance Assistant jobs in Riverside, CA are:

What cities near Riverside, CA are hiring for Maintenance Assistant jobs?

Cities near Riverside, CA with the most Maintenance Assistant job openings:

Maintenance Assistant jobs near you
Infographic showing various Maintenance Assistant job openings in Riverside, CA as of August 2026, with employment types broken down into 50% Full Time, and 50% Part Time. Highlights an 100% In-person job distribution, with an average salary of $39,211 per year, or $18.9 per hour.

Maintenance Assistant

Costco Wholesale Corporation

Ontario, CA • On-site

$16.25 - $20.50/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 7 days ago

Costco rating

8.1

Company rating: 8.1 out of 10

Based on 1,922 frontline employees who took The Breakroom Quiz

2nd of 39 rated national retailers

Job description

Job Description

California applicants: Please click here to review the Costco Applicant Privacy Notice.

The jobs listed are examples of the typical kinds of positions that Costco may hire for when openings exist. The listing does not mean that any positions are currently open or available at Costco.

Position Summary

Provides janitorial services and general maintenance of warehouse and grounds. Provides a high level of member service..

Job Duties

  • Cleans warehouse floors, offices, break room, and restrooms by operating self-propelled floor scrubbing machinery, and by sweeping, mopping, spraying, and wiping. Follows departmental procedures and standards for cleanliness and performance of duties. Restocks supplies.
  • Paints, replaces bulbs, maintains equipment, and performs routine repairs throughout the warehouse. Assists in building displays and fixtures.
  • Maintains grounds outside the warehouse including blowing leaves, picking up litter, roof checks, pressure washing, and building maintenance. Participates in snow and ice removal.
  • Follows safety and security procedures, such as tagging and locking off power access when working on electrical equipment or contracting out electrical work, wearing safety goggles when using compactor and baler, product disposal. Responds quickly to clean up spills.
  • Empties trash from designated areas throughout the warehouse. Operates garbage compactor and cardboard baler.
  • Checks daily schedule for assigned routine tasks and maintenance repair jobs.
  • Drives personal vehicle to purchase supplies and parts needed for projects.
  • Ensures proper cleanup and disposal of hazardous materials.
  • Ability to operate vehicles, equipment or machinery.
  • Assists with department duties as necessary.
  • Assists in other departments of the warehouse as necessary.

For additional information about pay ranges, click here.

We offer a comprehensive package of benefits including paid time off, health benefits - medical/dental/vision/hearing aid/pharmacy/behavioral health/employee assistance, health care reimbursement account, dependent care assistance plan, short-term disability and long-term disability insurance, AD&D insurance, life insurance, 401(k), stock purchase plan to eligible employees.

Apart from any religious or disability considerations, open availability is needed to meet the needs of the business. If hired, you will be required to provide proof of authorization to work in the United States.

Job Description Posting Updated: July 2026                                                   Job Code: 0507

Qualifications:UNAVAILABLEEducation:UNAVAILABLEEmployment Type: UNAVAILABLE

What Costco employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Costco logo

About Costco

Sourced by ZipRecruiter

Costco is a membership warehouse club, dedicated to bringing our members the best possible prices on quality brand-name merchandise. With more than 800 locations worldwide, Costco provides a wide selection of merchandise, plus the convenience of specialty departments and exclusive member services, all designed to make your shopping experience a pleasurable one. Today, as the company evolves, it stays true to the qualities that helped attract and retain millions of loyal members around the globe: Commitment to quality. Costco warehouses carry about 4,000 SKUs (stock keeping units) compared to the 30,000 found at most supermarkets. By carefully choosing products based on quality, price, brand, and features, the company can offer the best value to members.

Industry

Retail

Company size

10,000+ Employees

Headquarters location

Issaquah, WA, US

Year founded

1983

View All Costco Jobs

Apply