Estimator – Windows & Doors

About Us

JT Glass is a leading supplier of high-quality aluminium windows, doors, and architectural glass, supporting major builders, architects, and developers across Australia. Based in Sydney, we specialise in project-based supply for both commercial and residential developments.

With a growing pipeline of projects and continued business expansion, we are strengthening our estimating and tendering capability. We are seeking a motivated and detail-oriented Estimator to join our team and support our sales and project delivery functions.

The Prospect

This role is ideal for an Estimator with experience in windows, doors, façade, or building materials who enjoys working with drawings, numbers, and project teams. You will be responsible for preparing accurate cost estimates and quotations while supporting tender submissions and internal project coordination.

Key Responsibilities
Prepare cost estimates for aluminium window and door projects based on architectural drawings and technical specifications
Develop Bills of Quantities (BOQ) and detailed cost analyses
Assist with tender submissions, pricing schedules, and quotation documentation
Liaise with sales staff, project managers,



and suppliers to clarify technical and pricing details
Maintain and analyse project and client information through online project and tender platforms
Support continuous improvement of estimating accuracy and internal pricing systems

What We're Looking For
Experience in estimating within the windows, doors, façade, or construction industry
Ability to read and interpret architectural and structural drawings
Familiarity with Alspec aluminium window systems and glazing configurations is highly regarded
Robust Excel skills; experience with estimating or pricing software is an advantage
Good English communication skills; Mandarin is a plus
Background in construction, civil engineering, or architectural studies is preferred
Australian or New Zealand permanent residency preferred
Valid Australian driver’s licence

Why Join Us?
Base Salary $85,000–$115,000
Annual bonus
Company Laptop
Fuel allowance or company vehicle
Paid annual leave and sick leave entitlements
Annual training opportunities
Supportive multicultural team
Growth opportunities in a rapidly expanding business

📌 Estimator Seven Hills
🏢 JT GLASS ENTERPRISE
📍 Seven Hills