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Millwright Helper Jobs in California (NOW HIRING)

Solcoa Industries

Pilot Plant Manager

Alameda, CA · On-site

$120K - $150K/yr

Screen, interview, and help hire operators. Develop the training program: SOPs, qualification ... Hands-on maintenance fluency: you can read a P&ID, troubleshoot alongside a millwright, and know ...

pcg

Regional Craft Employment - Northern California

Alameda, CA · On-site

$1.4K - $1.9K/wk

Helper/Laborer/Trainee/Utility : Prepares work area by transporting needed tools and equipment from ... Millwright : Installation, maintenance, and repair of industrial machinery and equipment, ensuring ...

Found Rentals

Journey Man, Benicia

Benicia, CA · On-site

$28 - $32/hr

You show respect for the people behind the work and help create a safe, positive shop culture. Authenticity (Bring Our Best Self): You take pride in your craft and bring your passion for building ...

FOUND RENTALS, INC.

Journey Man, Benicia

Benicia, CA

$28 - $32/hr

You show respect for the people behind the work and help create a safe, positive shop culture. Authenticity (Bring Our Best Self): You take pride in your craft and bring your passion for building ...

Perdue Farms

Maintenance Mechanic II

Petaluma, CA · On-site

$31.05/hr

Your work will help minimize downtime and support consistent operational flow. This role is ideal ... Millwright * Sheet metal fabrication * Refrigeration systems * Pneumatics * Carpentry * Certified ...

Amcor plc

Maintenance III -ARP

Fairfield, CA · On-site

$42.55 - $44.55/hr

The technician will help drive safety, quality, and continuous improvement while supporting ... Some post-secondary education preferred (i.e., Technical or Vocational education in millwright ...

Amcor

Maintenance III -ARP

Fairfield, CA

$42.55 - $44.55/hr

The technician will help drive safety, quality, and continuous improvement while supporting ... Some post-secondary education preferred (i.e., Technical or Vocational education in millwright ...

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Showing results 21-40

All JobsMillwright Helper JobsMillwright Helper Jobs in California

Millwright Helper information

See California salary details

$14

$20

$24

How much do millwright helper jobs pay per hour?

As of Aug 6, 2026, the average hourly pay for millwright helper in California is $20.04, according to ZipRecruiter salary data. Most workers in this role earn between $18.03 and $22.55 per hour, depending on experience, location, and employer.

What are the typical daily responsibilities of a millwright helper?

As a Millwright Helper, your daily responsibilities often include preparing worksites, gathering and transporting materials, cleaning and maintaining tools, and assisting senior millwrights with machinery installation and repairs. You may be asked to hold or move heavy components, help with measurements, or perform basic assembly tasks. By handling these supportive duties, you enable experienced millwrights to focus on more technical work, which not only keeps projects on schedule but also provides you with valuable on-the-job learning opportunities.

What does a millwright helper do?

A millwright helper assists a millwright in installing equipment, prepping job sites, and moving machines before a construction project. They also remove material after the project is complete. Depending on the project, a millwright helper may help erect scaffolding, build frames for cement, or installs equipment for use. They may also perform maintenance on equipment and machinery, including basic repairs and preventative maintenance such as changing oil or adding lubricant to moving parts.

What is the difference between Millwright Helper vs Apprentice Millwright?

AspectMillwright HelperApprentice Millwright
CredentialsHigh school diploma or equivalent; on-the-job trainingHigh school diploma; technical school or apprenticeship program
Work EnvironmentAssists experienced millwrights in industrial settingsWorks under supervision to learn trade skills
Industry UsageCommon entry-level role in manufacturing and constructionTraining stage for becoming a licensed millwright

In summary, a Millwright Helper supports experienced millwrights and typically requires minimal formal training, while an Apprentice Millwright is actively learning the trade through structured programs. Both roles are essential in industrial maintenance and construction, but the apprentice is on a path to becoming a fully qualified millwright.

Where do millwright helpers make the most money?

Millwright helpers tend to earn higher wages in regions with a strong industrial or manufacturing presence, such as areas with large construction projects, heavy industry, or energy sectors. Factors like experience, certifications, and the complexity of tasks also influence earning potential, with those working in remote or high-demand locations often earning more due to increased demand and hazard pay.

What is a millwright helper?

Millwright helpers are skilled laborers who assist millwrights with installing, maintaining, and repairing industrial machinery and equipment. Their tasks include moving tools and materials, cleaning work areas, holding or supplying parts and tools, and performing basic maintenance under supervision. Millwright helpers play a crucial role in ensuring that millwrights can work efficiently and safely, often working in factories, power plants, and construction sites. They may also help with assembly, alignment, and adjustment of machinery components. This position is often a starting point for those interested in pursuing a career as a full-fledged millwright.

What are the key skills and qualifications needed to thrive as a millwright helper?

To thrive as a Millwright Helper, you need a basic understanding of mechanical systems, hand and power tool proficiency, and often a high school diploma or equivalent. Familiarity with equipment like hoists, forklifts, and measuring instruments, as well as certifications in safety practices such as OSHA training, are commonly required. Dependability, attention to detail, and strong teamwork skills help Millwright Helpers support journeymen and ensure smooth project execution. These skills and qualities are critical to maintaining safety, efficiency, and quality in industrial installation and maintenance environments.
More about Millwright Helper jobs
What are the most commonly searched types of Millwright jobs in California? The most popular types of Millwright jobs in California are:
What are popular job titles related to Millwright Helper jobs in California? For Millwright Helper jobs in California, the most frequently searched job titles are:
What job categories do people searching Millwright Helper jobs in California look for? The top searched job categories for Millwright Helper jobs in California are:
What cities in California are hiring for Millwright Helper jobs? Cities in California with the most Millwright Helper job openings:
What are popular job titles related to Millwright Helper jobs in CA? For Millwright Helper jobs in CA, the most frequently searched job titles are:
Millwright Helper jobs near you
Infographic showing various Millwright Helper job openings in California as of August 2026, with employment types broken down into 70% Full Time, 22% Part Time, 3% Temporary, 4% Contract, and 1% Nights. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $41,687 per year, or $20 per hour.

Plant Operator Mechanic - Renewable Power (West Covina)

OPAL Fuels Inc.

West Covina, CA • On-site

$35 - $39/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 25 days ago

Opal Fuels rating

7.5

Company rating: 7.5 out of 10

Based on 5 frontline employees who took The Breakroom Quiz

Job description

About OPAL Fuels
OPAL Fuels (Nasdaq: OPAL) is a leader in the capture and conversion of biogas into low carbon intensity RNG and renewable electricity. OPAL Fuels is also a leader in the marketing and distribution of RNG to heavy duty trucking and other hard to de-carbonize industrial sectors. For additional information, and to learn more about OPAL Fuels and how it is leading the effort to capture North America's naturally occurring methane and decarbonize the economy, please visit www.opalfuels.com.
Position Summary
We are seeking a highly skilled Industrial Mechanic with experience in steam power generation to join our team as a Mechanic and Plant Operator at a small steam boiler power plant in West Covina, CA. This position blends hands-on mechanical maintenance with operational oversight of steam generation systems. Reporting to the Lead Plant Operator, the successful candidate will play a key role in ensuring reliable plant performance, maintaining equipment integrity, and supporting safe, efficient power production. The primary objectives of this role are to maximize output, minimize downtime, and uphold the highest standards of safety, cleanliness, and environmental compliance.
Duties and Responsibilities
  • Operate, monitor, and maintain steam boiler systems, turbines, and auxiliary equipment.
  • Conduct daily checks of operating equipment, including flow meters, gas chromatographs, fluid levels, pressure and temperature readings, and unusual noises to identify and correct issues before failure occurs.
  • Sample feedwater and boiler water regularly, analyze results, and maintain proper water chemistry to ensure safe and efficient boiler operation.
  • Perform preventative and corrective maintenance on mechanical systems, pumps, valves, and rotating machinery.
  • Install, align, and repair industrial equipment in accordance with millwright standards.
  • Troubleshoot mechanical and operational issues to minimize downtime.
  • Assist in planning and scheduling maintenance activities.
  • Maintain detailed records of production data, equipment operating hours, service schedules, inspections, and maintenance activities.
  • Follow all safety protocols and environmental regulations to ensure compliance.
  • Maintain a high level of cleanliness in and around the plant: prevent oil accumulation, keep equipment and floors presentable, and maintain the yard and perimeter fence.
  • Keep all on-site parts and supplies stocked, organized, and inventoried.
  • Operate the plant with a strong focus on safety: clean spills immediately, ensure lighting systems are functional, eliminate slip/trip hazards, and promptly address electrical or mechanical issues. Confirm that all visitors, mechanics, and contractors follow safe work practices.
  • Work with internal resources to resolve operational and mechanical problems.
  • Ensure adherence to company policies, procedures, regulatory requirements, and safety standards.
  • Communicate material and personnel issues clearly to area managers.
  • Perform other duties as assigned.

Qualifications and Skills
  • High school diploma/ GED equivalent
  • Unlimited Steam License or Minimum 3-5 years of experience in mechanical maintenance and plant operations, ideally in power generation.
  • Journeyman- level Industrial Mechanic or Millwright certification is preferred.
  • Proficiency in equipment alignment, rigging, and mechanical assembly.
  • Ability to read and interpret technical drawings, schematics, and manuals.
  • Ability to work independently and as part of a team.
  • Commitment to workplace safety and regulatory compliance.
  • Willingness to work shifts, weekends, or on-call as required.
  • Basic electrical knowledge is preferred.
  • Strong knowledge of steam boiler systems, pumps, compressors, and rotating equipment.
  • General troubleshooting abilities.
  • Skilled in recordkeeping and logging.
  • Computer skills (Microsoft Office).
  • Must be self-motivated and perform most tasks with little or no supervision.
  • Experience in welding helpful.

Work Hours and Arrangements
Monday to Friday 6:00am - 2:30pm; Occasional 12 hour rotating shift coverage to support vacancies.
Physical Requirements
The physical demands described are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
Position requires physical effort such as that associated with driving a motorized vehicle, operate an ATV, using hand tools, and typing on a computer. Position requires moderate lifting (10-50 lbs.), occasional need to walk on irregular surfaces, and occasional stooping, kneeling, climbing, or crouching. Also requires the use of hands and arms to operate/examine gas meters, flow meters, hand tools, power tools, bridge and jib cranes and test/diagnostic equipment.
Job Type
Full-time
Pay
The range for this role is anticipated to be $35.00 - $39.00 hourly with bonus for eligible positions. Where a specific pay range is noted, it is a good faith estimate at the time of this posting. The actual salary offered will be based on experience, skills, qualifications, market / business considerations, and geographic location.
Benefits
  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Short & Long Term Disability
  • 401(k) plus Matching Contributions
  • Tuition Assistance
  • Referral Bonus
  • Generous Paid Time Off
  • Ten Paid Holidays per year

OPAL Fuels LLC is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, creed, national origin or ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, citizenship, past, current, or prospective service in the uniformed services, genetic information, or any other characteristic protected under applicable federal, state, or local law.
OPAL Fuels does not accept unsolicited resumes from third-party recruiters or agencies without a current signed agreement and written confirmation specifying the roles for which submissions are authorized. Any resumes submitted without an agreement and authorization will be considered the property of OPAL Fuels.

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