HVAC Estimator: AI-assisted Tendering & Takeoffs

ZigZag Philippines; Metro Manila; On-site; PHP 420,000 - 660,000; Full time

Job summary

ZigZag Philippines seeks an experienced HVAC Estimator to support our Director in preparing accurate tenders for building projects in Metro Manila. You will handle detailed estimating and quantity takeoffs from drawings, and develop cost data for supplier quotes.

You will measure quantities, review supplier quotations, and enter data into our estimate spreadsheet, ensuring totals reconcile. Strong Excel skills, familiarity with takeoff software, and clear written English are required.

Qualifications

• Experience in HVAC or mechanical services estimating on building projects.
• Ability to read mechanical drawings and equipment schedules.
• Proficient with takeoff software; training provided on our system.
• Strong Excel skills and working with structured data.
• Comfortable with metric units.
• Excellent written English and a methodical approach.
• Willingness to raise issues early and follow our method.

Responsibilities

• Measure quantities from mechanical drawings using takeoff software — equipment counts, refrigerant pipework, ductwork, grilles and diffusers, dampers, and fans.
• Record every measurement in our template with the drawing number, sheet and scale it came from, so anyone can check it later.
• Compare your quantities against the engineer's equipment schedules and explain any difference rather than averaging it out.
• Prepare requests for quotation to our suppliers, and keep track of what was sent, what came back, and what is still outstanding.
• Check supplier quotations against what we have measured, and point out anything missing, doubled up, or that the quote simply does not mention.
• Keep a record of the rates we use and where each one came from.
• Enter quantities and rates into our estimate spreadsheet and check that the totals reconcile.
• Keep a running log of anything on the drawings that is unclear, contradictory or looks wrong, and raise it with the Director instead of guessing.

Skills

HVAC Estimating

Quantity takeoff

Reading drawings

Excel

Metric units

Documentation

Communication

Tools

Groundplan

Bluebeam Revu

PlanSwift

On-Screen Takeoff

Cubit

Job description

ZigZag Philippines seeks an experienced HVAC Estimator to support our Director in preparing accurate tenders for building projects in Metro Manila. You will handle detailed estimating and quantity takeoffs from drawings, and develop cost data for supplier quotes.

You will measure quantities, review supplier quotations, and enter data into our estimate spreadsheet, ensuring totals reconcile. Strong Excel skills, familiarity with takeoff software, and clear written English are required.