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General Contractor Assistant Jobs in Rialto, CA (NOW HIRING)

Sea West Enterprises

Be Seen First

Commercial Construction Estimator

San Dimas, CA · On-site

$80K - $115K/yr

Drive new project opportunities through strong sales and relationship-building skills * Assist in ... Minimum 3+ years of estimating experience with a general contractor in commercial construction

K2 Staffing, LLC

Plumbing/HVAC Estimator

Anaheim, CA · On-site

$90K - $105K/yr

Maintain regular communication with Pre-Construction Departments of targeted General Contractors to ... Project Setup & Coordination * Assist in preparing budgets for project kickoff and any priced ...

Eleven Western Builders

Carpenter

Riverside, CA

$20 - $35/hr

... retail general contractor throughout California and the western United States. Are you ... Guide team of Assistant Carpenters to efficiently install materials while following appropriate and ...

Eleven Western Builders

Carpenter

Orange, CA · Remote

... retail general contractor throughout California and the western United States. Are you ... Guide team of Assistant Carpenters to efficiently install materials while following appropriate and ...

Eleven Western Builders

Carpenter

Orange, CA

$20 - $35/hr

... retail general contractor throughout California and the western United States. Are you ... Guide team of Assistant Carpenters to efficiently install materials while following appropriate and ...

Eleven Western Builders

Carpenter

Riverside, CA · Remote

... retail general contractor throughout California and the western United States. Are you ... Guide team of Assistant Carpenters to efficiently install materials while following appropriate and ...

Eleven Western Builders

Carpenter

Orange, CA · On-site

$20 - $35/hr

... retail general contractor throughout California and the western United States. Are you ... Guide team of Assistant Carpenters to efficiently install materials while following appropriate and ...

Eleven Western Builders

Carpenter

Riverside, CA · On-site

$20 - $35/hr

... retail general contractor throughout California and the western United States. Are you ... Guide team of Assistant Carpenters to efficiently install materials while following appropriate and ...

RimePro Inc

Plumbing Estimator

Corona, CA

$80K - $110K/yr

Provide value engineering solutions to optimize cost and improve project efficiency. * Assist in ... Experience working for a plumbing contractor, mechanical contractor, or general contractor.

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General Contractor Assistant information

See Rialto, CA salary details

$10

$18

$23

How much do general contractor assistant jobs pay per hour?

As of Aug 5, 2026, the average hourly pay for general contractor assistant in Rialto, CA is $18.02, according to ZipRecruiter salary data. Most workers in this role earn between $15.15 and $21.26 per hour, depending on experience, location, and employer.

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

To thrive as a General Contractor Assistant, you need a basic understanding of construction processes, project documentation, and safety protocols, often supported by a high school diploma or relevant trade certifications. Familiarity with project management software, scheduling tools, and construction site equipment is typically required. Strong organizational skills, attention to detail, and effective communication make someone stand out in this position. These skills are crucial for supporting project efficiency, ensuring safety compliance, and facilitating smooth coordination between teams and subcontractors.

What is the difference between General Contractor Assistant vs Construction Coordinator?

AspectGeneral Contractor AssistantConstruction Coordinator
CredentialsHigh school diploma, some experience in constructionHigh school diploma, often some project management knowledge
Work EnvironmentConstruction sites, officesConstruction sites, project offices
Employer & Industry UsageConstruction companies, general contractorsConstruction firms, project management teams
Common Search & ComparisonYesYes

The main difference is that a General Contractor Assistant supports the general contractor with daily tasks, scheduling, and coordination, often focusing on site assistance. A Construction Coordinator typically handles project planning, communication, and documentation, often with more emphasis on administrative and organizational duties. Both roles are essential in construction projects but differ in scope and responsibilities.

What is a general contractor assistant?

General Contractor Assistants support general contractors in managing construction projects by performing administrative, organizational, and hands-on tasks. Their duties often include coordinating schedules, communicating with subcontractors and suppliers, maintaining project documentation, and ensuring that safety regulations are followed on-site. They help keep projects running smoothly by assisting with project planning, budget tracking, and addressing any logistical needs that arise. This role is vital for efficient project execution and helps ensure construction projects are completed on time and within budget.

What are some typical challenges faced by a general contractor assistant, and how can they be managed?

General Contractor Assistants often face challenges such as juggling multiple tasks on tight deadlines, coordinating with various subcontractors, and adapting quickly to changes on the job site. Effective time management, clear communication, and a proactive approach to problem-solving are essential for success in this role. Building strong relationships with team members and staying organized can help manage these challenges and contribute to smooth project execution.

What does a general contractor assistant do?

As a general contractor assistant, you assist construction teams on a building site and in an office. Your responsibilities include tasks like preparing and securing equipment, maintaining clean and safe work areas, and collaborating with teams of workers to complete each project. You use power and hand tools, direct subcontractors and temporary staff on daily duties, inventory materials, and collaborate with team members to complete tasks. Duties also include attending meetings and taking notes as necessary, communicating with teams of architects, engineers, subcontractors, and other team members, and following guidelines to ensure each structure is safe and meets code requirements.

More about General Contractor Assistant jobs
What are popular job titles related to General Contractor Assistant jobs in Rialto, CA? For General Contractor Assistant jobs in Rialto, CA, the most frequently searched job titles are:
What job categories do people searching General Contractor Assistant jobs in Rialto, CA look for? The top searched job categories for General Contractor Assistant jobs in Rialto, CA are:
What cities near Rialto, CA are hiring for General Contractor Assistant jobs? Cities near Rialto, CA with the most General Contractor Assistant job openings:
General Contractor Assistant jobs near you
Infographic showing various General Contractor Assistant job openings in Rialto, CA as of July 2026, with employment types broken down into 1% As Needed, 76% Full Time, 20% Part Time, 1% Temporary, and 2% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $37,472 per year, or $18 per hour.

Commercial Painting Project Manager

The Contractor Consultants

Yorba Linda, CA

$70K - $80K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 18 days ago

Job description

Commercial Painting Project Manager – Drive Growth for a Premier Southern California Painting Division

Job Overview
  • Company: RMC Facilities Services, Inc.
  • Salary/Pay Rate: $70,000 - $80,000 (Based on experience).
  • Location: Yorba Linda, CA.
  • Job/Employment Type: Full Time, Salaried.
  • Mandatory Licenses & Certifications: None Required.
The Opportunity

You will serve as a vital link between clients and field operations, fueling the expansion of a thriving division within a woman-owned general contracting firm with a 50-year legacy. This role offers a clear trajectory for career advancement by allowing you to manage high-profile commercial projects and cultivate essential industry relationships. You will have the platform to master complex project management workflows while contributing to a culture that values ambition and professional development.

How You Will Make an Impact
  • Coordinate commercial painting projects by managing bid portal processes and preparing comprehensive project startup packages.
  • Develop a robust clientele base by identifying new business opportunities and nurturing long-term relationships with key stakeholders.
  • Collaborate with building management and subcontractors to ensure every phase of production meets strict budget and timeline requirements.
  • Oversee diverse trades including specialty finishes, epoxy, powder coating, and drywall installation to maintain high-quality standards.
  • Execute critical project close-out procedures, including punch walks and the submission of all necessary administrative documentation.
  • Facilitate real-time problem solving and logistical support to assist the division in scaling its Southern California operations.
Required Qualifications & Experience
  • Strong proficiency with Microsoft Office Suite, specifically Outlook, Excel, and MS Project.
  • Demonstrated ability to multitask and maintain high performance in a fast-paced construction environment.
  • Excellent verbal and written communication skills necessary for high-profile client interaction.
  • Physical ability to move up to 50 pounds of equipment and safely navigate ladders on job sites.
Preferred Qualifications & Experience
  • 3+ years of recent experience in commercial tenant improvements and project management.
  • Proven expertise in plan reading, project scheduling, and accurate profit forecasting.
  • Direct experience with unit cost, design-build proposals, and general contract regulations.
  • Background in analyzing subcontractors and qualifying project scopes during the bidding phase.
Compensation & Benefits
  • Competitive salary with bonus opportunities tied to division growth and profitability.
  • Comprehensive medical, dental, and vision insurance coverage.
  • Safe Harbor 401k retirement plan and life insurance options.
  • Paid Time Off (PTO), sick leave, and paid holidays.
  • Access to professional development and mentorship within a Certified Women Business Enterprise (WBE).
About Us

RMC Facilities Services, Inc. is a full-service general contractor with over 50 years of experience serving the Southern California region. As a Certified Women Business Enterprise (WBE), we take pride in delivering high-quality tenant improvements, commercial buildouts, and facilities management services. Our culture is team-driven, people-first, and focused on delivering excellence in everything we do.