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Plumber Assistant Jobs in Riverside, CA (NOW HIRING)

Mid-Level Plumbing Engineer

Tustin, CA · On-site

$93K - $117K/yr

Mid-Level Plumbing Engineer At Salas O'Brien we tell our clients that we're engineered for impact ... Perform engineering calculations, system sizing, and assist with equipment selection. * Identify ...

Position Overview The Plumbing Estimator is responsible for preparing accurate and competitive cost ... Provide value engineering solutions to optimize cost and improve project efficiency. * Assist in ...

Maintenance Assistant

Yucaipa, CA · On-site

$17 - $21.50/hr

Maintain grounds, walkways, and common areas * Assist with painting, plumbing, electrical, carpentry, and HVAC-related tasks as needed * Ensure compliance with safety regulations and infection ...

Be Seen First

... . Assist with project estimating and creating change orders · Create and update detailed project ... plumbing or other trade. · Desire to continue to learn, grow and expand with a company with big ...

Maintenance Assistant

Yucaipa, CA · On-site

$17 - $21.50/hr

Maintain grounds, walkways, and common areas * Assist with painting, plumbing, electrical, carpentry, and HVAC-related tasks as needed * Ensure compliance with safety regulations and infection ...

Plumbing Project Manager Full-Time | External Location: Inland Empire Position Overview We're ... Schedule and support inspections, testing, and closeout documentation * Assist preconstruction ...

Position Summary As a Plumbing Estimator, you will play a critical role in the preconstruction ... opportunities * Assist in preparing proposals, bid forms, and documentation for submission

Plumbing Engineer Internship

Irvine, CA

$20.25 - $27/hr

Help coordinate plumbing designs with other disciplines to ensure integrated project solutions * Assist in the preparation of project deliverables across various phases of design, including:

Plumbing Engineer Internship

Irvine, CA

$20.25 - $27/hr

Help coordinate plumbing designs with other disciplines to ensure integrated project solutions * Assist in the preparation of project deliverables across various phases of design, including:

This hands-on role includes tasks related to basic plumbing, refrigeration, electrical, and general ... Carry out minor carpentry and general repair tasks as needed * Assist with regular inspections and ...

Plumbing Engineer Internship

Irvine, CA · On-site

$20.25 - $27/hr

Help coordinate plumbing designs with other disciplines to ensure integrated project solutions * Assist in the preparation of project deliverables across various phases of design, including:

Sales Assistant

Riverside, CA

$19.50 - $25.50/hr

... Assistant to join our team. In this important support role, you will work closely with both our ... Basic knowledge of plumbing products, terminology, or construction industry preferred but not ...

Coordinate plumbing designs with architectural and mechanical plans * Assist in preparing material take-offs and drawing sets for submittals * Learn Revit and BIM systems as the team expands ...

Sales Assistant

Riverside, CA · On-site

$19.50 - $25.50/hr

... Assistant to join our team. In this important support role, you will work closely with both our ... Basic knowledge of plumbing products, terminology, or construction industry preferred but not ...

Sales Assistant

Riverside, CA · On-site

$21 - $24/hr

... Assistant to join our team. In this important support role, you will work closely with both our ... Basic knowledge of plumbing products, terminology, or construction industry preferred but not ...

Coordinate plumbing designs with architectural and mechanical plans * Assist in preparing material take-offs and drawing sets for submittals * Learn Revit and BIM systems as the team expands ...

Project Setup & Coordination * Assist in preparing budgets for project kickoff and any priced ... Minimum 3 years of plumbing and/or mechanical estimating experience * Proficient in Microsoft ...

Sales Assistant

Riverside, CA · On-site

$21 - $24/hr

... Assistant to join our team. In this important support role, you will work closely with both our ... Basic knowledge of plumbing products, terminology, or construction industry preferred but not ...

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Plumber Assistant information

See Riverside, CA salary details

$12

$20

$30

How much do plumber assistant jobs pay per hour?

As of Jun 14, 2026, the average hourly pay for plumber assistant in Riverside, CA is $20.12, according to ZipRecruiter salary data. Most workers in this role earn between $16.54 and $22.31 per hour, depending on experience, location, and employer.

Can a plumber make $100,000 a year?

Plumber assistants typically do not earn $100,000 annually, as this level of income is usually achieved by experienced plumbers or those who own their own businesses. Factors such as experience, certifications, specialization, and geographic location can influence earning potential in the plumbing industry.

What are plumber assistants?

Plumber assistants, also known as plumber helpers, support licensed plumbers by performing a variety of tasks on job sites. These duties can include carrying tools, preparing materials, cleaning work areas, and assisting with the installation and repair of plumbing systems. They often help with measuring, cutting, and assembling pipes, as well as troubleshooting basic plumbing issues under supervision. Plumber assistants play an essential role in ensuring plumbing projects run smoothly and efficiently, and the position is often a stepping stone to becoming a licensed plumber.

What is the number one killer of plumbers?

The leading cause of death among plumbers is work-related accidents, primarily falls from heights, being struck by falling objects, or exposure to hazardous environments. Proper safety training, use of personal protective equipment, and adherence to safety protocols are essential to reduce these risks on the job.

What does a plumber assistant do?

A plumber assistant supports licensed plumbers by preparing work sites, handing tools, and assisting with installations and repairs of plumbing systems. They may also help with measuring, cutting pipes, and cleaning work areas, often working under supervision and using basic plumbing tools. This role provides foundational experience for a career in plumbing and may require knowledge of safety procedures and physical stamina.

What is the difference between Plumber Assistant vs Plumber?

AspectPlumber AssistantPlumber
Required CredentialsHigh school diploma or equivalent; on-the-job trainingHigh school diploma or equivalent; apprenticeship or technical training
Work EnvironmentAssist in installation and repair under supervision, often in residential or commercial settingsPerform plumbing installations, repairs, and maintenance independently or with team
Employer & Industry UsageUsed by plumbing companies for entry-level support rolesLicensed professionals performing full plumbing services

The main difference between a Plumber Assistant and a Plumber is experience and responsibility. A Plumber Assistant supports plumbing work under supervision, often with minimal certifications, while a Plumber performs independent work with required licenses and more advanced skills.

Is 30 too old to become a plumber?

Plumber assistants can start at any age, including 30, as the role primarily requires physical ability, basic skills, and often a willingness to learn on the job. Many employers value experience and reliability over age, and training programs or apprenticeships are available for adults entering the trade.

What are some typical daily responsibilities of a Plumber Assistant, and how do they support licensed plumbers on the job?

As a Plumber Assistant, your daily tasks usually include preparing and cleaning job sites, transporting tools and materials, and assisting with installing or repairing pipes, fixtures, and other plumbing systems under the guidance of a licensed plumber. You may also be expected to handle basic measurements, cut and prep piping, and help troubleshoot minor issues. By efficiently supporting the lead plumber, you not only ensure projects run smoothly but also gain hands-on experience that can be valuable for career advancement in the plumbing trade.
What are the most commonly searched types of Plumber jobs in Riverside, CA? The most popular types of Plumber jobs in Riverside, CA are:
What are popular job titles related to Plumber Assistant jobs in Riverside, CA? For Plumber Assistant jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Plumber Assistant jobs in Riverside, CA look for? The top searched job categories for Plumber Assistant jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Plumber Assistant jobs? Cities near Riverside, CA with the most Plumber Assistant job openings:
Infographic showing various Plumber Assistant job openings in Riverside, CA as of June 2026, with employment types broken down into 1% As Needed, 76% Full Time, 21% Part Time, and 2% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $41,850 per year, or $20.1 per hour.
Mid-Level Plumbing Engineer

Mid-Level Plumbing Engineer

Salas O'Brien, Inc.

Tustin, CA • On-site

$93K - $117K/yr

Full-time

Posted 2 days ago


Salas O'Brien rating

7.2

Company rating: 7.2 out of 10

Based on 6 frontline employees who took The Breakroom Quiz

261st of 352 rated engineering


Job description

Mid-Level Plumbing Engineer

At Salas O’Brien we tell our clients that we’re engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That’s why we’re committed to living our values every day: inspiring, achieving, and connecting as shared owners of our success with a focus on a sustainable future.

Building for the long-term means that all of our team members can expect to work on amazing projects with a people-first approach to problem solving. It also means that each member of our team has truly limitless potential to build a unique, meaningful, and high-impact career—and they’ll receive great total rewards along the way.

About Us:

Founded in 1975, Salas O’Brien is an employee-owned engineering and professional services firm focused on achieving impact for our clients, our team, and the world. We know that tomorrow’s requirements are today’s opportunities, and we are here to design lasting solutions for pressing challenges.

We work across a variety of industries providing integrated engineering and consulting services. Our specialized experience includes design for data centers, healthcare, science and technology, high-rise buildings, clean energy, education, and other building types as well as structural and building sciences, infrastructure asset management, advanced robotics, and more.

Our technical expertise is paired with an exceptional team of business development, human resources, finance and accounting, information technology, and marketing professionals, all of whom play a key role in bringing our commitments to life every day.

Job Summary:

The Plumbing Engineer will focus on engineering and delivery of plumbing system design for healthcare and other complex facilities. The role will entail managing engineering projects, directing designers & other disciplines, as well as personally performing engineering activities and engaging in project meetings.

Responsibilities:

  • Provide a superior level of technical services to our clients for their projects and technical support requirements, providing technical and project control direction, and mentoring other engineers and designers.
  • Engineer and design plumbing systems, including medical and laboratory piping, medical gases, and specialized healthcare infrastructure.
  • Provide engineering design, evaluation, and planning of plumbing systems for healthcare, life sciences, higher education, and data center market types.
  • Perform engineering calculations, system sizing, and assist with equipment selection.
  • Identify, formulate, and initiate solutions to complex problems requiring multiple-discipline involvement, along with discipline-specific analytical tools.
  • Perform work activities on an individual basis or within a project team with limited need for supervision.
  • Coordinate work activities that affect the quality of project control, scope development, proposals, engineering & design, document control, inspection & testing, and commissioning.
  • Identify and resolve routine problems that involve the use of conflicting or incomplete information.
  • Data gathering and site assessments at customer’s facilities.
  • Review and editing of project specifications with minor assistance.
  • Proficient knowledge of California code requirements, including California Building Code (CBC) and HCAI specific requirements.
  • Coordinate with multidisciplinary teams to support project delivery across design and construction phases.
  • Develop bidding documents for process equipment, fabrication, and construction.
  • Ability to review Revit production models and work interactively with support staff in development of project deliverables.
  • Support client interactions and participate in project meetings as needed.
  • Assist with QA/QC reviews to ensure accuracy, quality, and compliance with applicable codes and standards.

Skills:

  • Advanced expertise with Autodesk software (Revit, Navisworks).
  • Ability to comprehend, contribute to, and carry out strategies to manage our relationships with customers, suppliers, and alliance team members
  • Experience at a design engineering firm required.
  • Demonstrated ability to work independently and take initiative to drive projects forward.

Team Contribution & Development:

  • Collaborate with senior engineers and project managers to deliver projects on schedule and within scope.
  • Support proposal development and technical input for projects as needed.
  • Participate in knowledge sharing and continuous improvement of design standards and best practices.
  • Contribute to a positive team environment through effective communication and collaboration.
  • Continue to build technical expertise in specialized plumbing systems.

Qualifications and Experience:

  • Bachelor's Degree in Mechanical Engineering.
  • 5-10 years of experience engineering and managing plumbing systems projects from start to finish for the built environment.
  • Client engagement and business development experience.
  • Registration as P.E. preferred.

Location:

  • Tustin, CA (on-site with remote Fridays).

Travel:

  • Up to 30%.

Compensation & Benefits:

Salas O’Brien health and welfare benefits are designed to invest in you, and in the things you care about. Your health. Your well-being. Your security. Your future. Team members have access to medical, dental, vision, and basic life insurance, a 401(k) plan, and the ability to purchase company stock at a discount. Salas O’Brien has both U.S. and Canadian (PTO) plans for full-time salaried, exempt and non-team members, 10 paid holidays, and paid leave programs for military service and new parents. And certain roles may be eligible for additional rewards, including merit increases, performance discretionary bonus, and stock.

The base salary range for this position is $100,000 to $150,000. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

Equal Opportunity Employment Statement

Salas O’Brien provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, colour, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state/provincial, or local laws. Salas O’Brien will accommodate the disability-related needs of applicants as required by law.