# Commercial Plumbing Estimator

> AlphaX · San Jose, United States · Full-time · Posted 2026-10-13

**Workplace:** on_site

## Description

We’re seeking an experienced Plumbing Estimator to manage bid preparation and preconstruction planning for commercial and industrial plumbing projects. This role requires hands-on experience evaluating construction plans, calculating labor and material costs, coordinating pricing, and developing accurate estimates for plumbing and process piping work.

### Responsibilities

-   Develop detailed cost estimates and competitive bids for commercial and industrial plumbing and process piping projects.
-   Conduct comprehensive material and labor takeoffs using plumbing plans, mechanical drawings, MEP documents, and project specifications.
-   Analyze drawings, bid documents, specifications, and addenda to establish project scope and identify missing information or potential discrepancies.
-   Request, compare, and verify supplier, equipment, and subcontractor quotes to ensure accurate project costing.
-   Prepare bid packages, pricing schedules, cost breakdowns, and preliminary budgets for plumbing construction projects.
-   Evaluate project risks, including scope gaps, construction feasibility, pricing assumptions, and potential cost overruns.
-   Coordinate with general contractors, engineers, vendors, subcontractors, and internal departments to resolve scope questions and confirm pricing details.
-   Assess change orders and revised project requirements to determine cost impacts and prepare updated estimates.
-   Organize bid documentation, maintain historical cost databases, and track pricing trends to support more accurate future estimates.

## Requirements

-   At least 5 years of estimating experience in commercial or industrial plumbing construction.
-   Proven experience estimating plumbing systems and/or process piping projects.
-   Previous employment with a plumbing contractor, mechanical contractor, MEP subcontractor, or a comparable construction firm.
-   Strong ability to interpret construction drawings, plumbing layouts, mechanical plans, specifications, and related project documents.
-   Demonstrated experience calculating material quantities, labor hours, equipment costs, and subcontractor expenses.
-   A background in plumbing estimating is mandatory; candidates with only general construction or residential estimating experience will not qualify.
-   Familiarity with construction estimating platforms and Microsoft Office, with experience using digital takeoff tools considered an advantage.
-   Solid knowledge of commercial plumbing systems, installation methods, construction sequencing, and scope development.

## Benefits

-   Competitive compensation based on experience.
-   Health insurance options.
-   Retirement plan options.
-   Paid time off.
-   Additional company-sponsored benefits.

## Apply

[Apply at AlphaX](https://apply.workable.com/alphax/j/F8B94ED4D1/apply)

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