About Us
J3 Roofing & Facades is a fast-growing specialist contractor delivering high-quality roofing, cladding and façade solutions across London and the South East.
We take pride in our precision workmanship, technical expertise, and commitment to compliance and quality on every project — from residential developments to large-scale commercial schemes.
We’re expanding our in-house team and looking for a dedicated Estimator to join us as we continue to grow and strengthen our pre-construction capability.
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The Role
As Estimator, you’ll be responsible for managing tenders from initial enquiry through to submission and handover, working closely with our directors and contracts team.
You’ll play a key role in securing future projects and shaping the commercial growth of J3 Roofing & Facades.
Key Responsibilities:
•Reviewing tender enquiries, specifications, and drawings for roofing and façade packages
•Preparing detailed cost estimates, bills of quantities, and take-offs
•Liaising with clients, main contractors, suppliers, and subcontractors
•Managing tender deadlines and ensuring submissions are complete and compliant
•Producing value engineering options and risk assessments where required
•Supporting post-tender clarifications and handovers to the contracts team
•Maintaining accurate cost databases and supplier information
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About You
We’re looking for someone who’s motivated, methodical, and passionate about the building envelope sector.
Essential:
•Proven experience estimating roofing and/or façade packages
•Strong technical understanding of materials and systems (zinc, rainscreen, SFS, flat roofing, etc.)
•Confident using estimating software and Excel-based take-off tools
•Excellent commercial awareness and attention to detail
•Strong communication and organisational skills
Desirable:
•Experience with Design & Build projects
•Knowledge of current Building Regulations and façade compliance standards
•Degree or HNC/HND in Quantity Surveying or Construction Management