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Assistant Estimator Jobs in Riverside, CA (NOW HIRING)

Reviews estimates for Grand Format products and services. Determine manufacturing cost by determining processes, equipment, and material costs. The estimator will review cost estimates using various ...

Reviews estimates for Grand Format products and services. Determine manufacturing cost by determining processes, equipment, and material costs. The estimator will review cost estimates using various ...

Senior Estimator

Irvine, CA ยท On-site

$150 - $200/hr

Serve as mentor and coach to estimators and assistant estimators Qualifications * 7+ years experience in construction estimating, preferably with a general construction company * Vast knowledge of ...

Estimator

Corona, CA ยท On-site

$26/hr

In this role, you will assist the company in making profitable business decisions by gathering information and preparing accurate estimates. The ideal candidate is analytical, detail-oriented, and ...

Estimator

Corona, CA ยท On-site

$26/hr

In this role, you will assist the company in making profitable business decisions by gathering information and preparing accurate estimates. The ideal candidate is analytical, detail-oriented, and ...

Estimator

Corona, CA ยท On-site

$26/hr

In this role, you will assist the company in making profitable business decisions by gathering information and preparing accurate estimates. The ideal candidate is analytical, detail-oriented, and ...

Estimator

Corona, CA ยท On-site

In this role, you will assist the company in making profitable business decisions by gathering information and preparing accurate estimates. The ideal candidate is analytical, detail-oriented, and ...

Estimator

Santa Ana, CA

$95K - $120K/yr

... Assist jobsite staff with estimates after bid award Perform post-bid buyouts (if applicable) Maintain good relationship with suppliers and subcontractors Supervise and train estimating staff (if ...

Estimator

Ontario, CA ยท On-site

Identifies, and acts upon, potential lines of business and new client prospects to assist with ... Senior level estimators may oversee work of Project Engineers or lower level Estimators External ...

Estimator

Ontario, CA ยท On-site

Identifies, and acts upon, potential lines of business and new client prospects to assist with ... Senior level estimators may oversee work of Project Engineers or lower level Estimators External ...

Estimator

Orange, CA ยท On-site

The Estimator will also assist with budgeting, value engineering, cost tracking, and maintaining historical cost data to improve future estimates and competitiveness. Qualifications: * Strong ...

Estimator

Wildomar, CA ยท On-site

Develop labor, material, and equipment pricing and build cost estimates * Assist with subcontractor outreach, bid tracking, and proposal comparisons * Help prepare bid packages, summaries, and final ...

Estimator

Brea, CA ยท On-site

$80K - $150K/yr

Prepare budgets, subcontracts, purchase orders and assist in preliminary project schedules. * Follow awarded contracts as assigned. May include estimating extra work items, change orders, credits ...

Estimator

Brea, CA ยท On-site

$80K - $150K/yr

Prepare budgets, subcontracts, purchase orders and assist in preliminary project schedules. * Follow awarded contracts as assigned. May include estimating extra work items, change orders, credits ...

Estimator

Brea, CA ยท On-site

$80K - $150K/yr

Prepare budgets, subcontracts, purchase orders and assist in preliminary project schedules. * Follow awarded contracts as assigned. May include estimating extra work items, change orders, credits ...

Estimator

Corona, CA ยท On-site

This position will assist with each assigned bid or proposal with performing quantity takeoffs, pricing and preparation of estimates. Key Duties and Responsibilities Estimating & Bid Preparation

What You'll Do: * Assist with preparing conceptual and detailed construction estimates * Perform quantity takeoffs from drawings and specifications * Solicit, review, and analyze subcontractor and ...

Solicit, evaluate, and level subcontractor bids; coordinate RFIs between bidders and design teams. * Assist in developing conceptual and detailed estimates using historical cost data. * Support value ...

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Assistant Estimator information

See Riverside, CA salary details

$16

$25

$44

How much do assistant estimator jobs pay per hour?

As of Sep 8, 2026, the average hourly pay for assistant estimator in Riverside, CA is $25.81, according to ZipRecruiter salary data. Most workers in this role earn between $19.81 and $28.08 per hour, depending on experience, location, and employer.

What does an assistant estimator do?

An Assistant Estimator supports the lead estimator in calculating the costs and resources needed for construction or manufacturing projects. Their duties typically include gathering and analyzing data, reviewing project plans and specifications, preparing cost estimates, and helping create bids for potential projects. They also assist in sourcing materials, communicating with vendors and subcontractors, and maintaining records of estimates. This role is crucial in helping companies prepare competitive and accurate bids and ensuring projects stay within budget.

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

To thrive as an Assistant Estimator, you need strong analytical abilities, attention to detail, and a background in construction or engineering, often supported by a relevant degree or coursework. Familiarity with estimation software such as Bluebeam, ProEst, or Microsoft Excel, as well as reading construction drawings, is typically required. Strong communication, time management, and teamwork skills help you coordinate effectively with project managers, suppliers, and clients. These competencies are essential to ensure accurate cost estimates, timely project delivery, and smooth collaboration within construction teams.

What are some common challenges faced by assistant estimators when preparing cost estimates, and how can they be managed?

Assistant Estimators often face challenges such as incomplete project documentation, fluctuating material costs, and tight deadlines. Managing these issues requires strong attention to detail, effective communication with project managers and suppliers, and the ability to adapt quickly to updated information. Building solid relationships with vendors and leveraging estimating software can also help streamline the process. Collaborating closely with senior estimators and other team members ensures more accurate and reliable estimates.

What is the difference between Assistant Estimator vs Estimator?

AspectAssistant EstimatorEstimator
CredentialsTypically requires a relevant diploma or degree, some industry experienceRequires more experience, often a degree in construction management or related field
Work EnvironmentSupports senior estimators, works in office and on-siteLeads cost estimation, interacts with clients and project teams
ResponsibilitiesPrepares initial estimates, gathers data, assists in bid preparationDevelops detailed cost estimates, reviews project plans, manages bid process

The main difference between an Assistant Estimator and an Estimator lies in experience and responsibility. An Assistant Estimator supports the estimation process with preliminary tasks, while an Estimator takes on more complex, independent responsibilities in preparing detailed project costs.

What is an assistant estimator?

An assistant estimator is a construction or engineering professional who supports senior estimators by gathering data, preparing cost estimates, and assisting with bid proposals. They often use estimating software and need strong math, organizational skills, and knowledge of construction materials and methods. This role typically involves working in an office environment and may require relevant certifications or training.

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

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

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

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

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

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

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

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

Infographic showing various Assistant Estimator job openings in Riverside, CA as of August 2026, with employment types broken down into 2% As Needed, 75% 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 $53,675 per year, or $25.8 per hour.

Assistant Estimator

Irvine, CA โ€ข On-site

Full-time

Re-posted 19 days ago


Job description

Reviews estimates for Grand Format products and services. Determine manufacturing cost by determining processes, equipment, and material costs. The estimator will review cost estimates using various tools: grand format estimating software and actual cost data.
ESSENTIAL FUNCTIONS:
  • Strong Computer Skills: MS Excel
  • Basic understanding of cost and price development
  • Understanding of processes and principles
  • Responds to all inquiries in a timely manner
  • Possess attention to detail and able to multi task

Skills & Requirements
  • Proficient in Microsoft Excel
  • Time Study or Methods development experience
  • Initiative to take on challenging tasks
  • Prior experience in quoting & estimating
  • Experience with equipment processes and operations
  • Grand Format experience is a plus

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