Company: Gratte Brothers Group
Location: London
Posted: April 24th, 2026
Gratte Brothers |Building Services Maintenance (GBBSM) is looking for a highly organized Principal Estimator to join our team at our King’s Cross HQ.
As our Principal Estimator, you’ll take ownership of the full bid lifecycle – from initial enquiry through to contract award, mobilisation, and handover. This senior, high-impact role combines commercial leadership with technical expertise, driving both new business and contract renewals. You’ll lead tender preparation, develop robust cost models, conduct site surveys, coordinate subcontractors, and ensure smooth mobilisation and transition into operations. Post‑award you’ll continue to add value through cost management, asset validation, and supporting the commercial team.
Ideal for an experienced FM professional with a strong track record of winning bids, deep knowledge of maintenance operations, and the ability to influence, negotiate, and deliver results in a fast‑paced environment.
Gratte Brothers Group consists of five operating companies: Gratte Brothers | Building Services & Engineering, Gratte Brothers | Foodservice Solutions, Gratte Brothers | Security Systems & Software, Gratte Brothers | Building Services Maintenance and Gratte Brothers | Design & Coordination. Our Head Office is based in King’s Cross, London, with several further locations nationally, dedicated to specific functionalities. As a Group, we deliver a comprehensive range of building services with an impeccable reputation for quality. As we’ve grown over the past 80+ years, we’re proud to have remained a family‑owned business. So, when you join Gratte Brothers you don’t just join a team, you join a family!
Gratte Brothers Group is an equal opportunities employer and welcomes applications from all qualified candidates.
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