Estimator/Bidder

Fire & Security

£45,000 per annum

Location: London
Hours: Permanent / Full Time
Posted: 26/12/25

This is a full-time, on-site role as a Security Systems Estimator located in Harlow. The successful candidate will be responsible for estimating the cost of security system projects, creating detailed
project proposals, and identifying potential project risks. The Security Systems Estimator will be responsible for conducting site surveys, preparing take-offs, creating project cost breakdowns, and
maintaining accurate project estimates. In addition to working closely with cross-functional teams to
determine project requirements, the Security Systems Estimator will liaise with clients and suppliers
throughout the duration of projects. Submitting completed proposals ensuring competitive pricing and
agreed profit margins.
Improve Gamma’s market position and achieve financial growth. Builds key customer relationships,
identifies business opportunities, negotiates, and closes business deals and maintains extensive
knowledge of current market conditions.
Job Responsibilities:
The primary role of the Estimator is to review all prices, all tenders’ requests and quotes sent to
Gamma Systems for installation projects. This involves sourcing the best pricing and ensuring we are
submitting proposals on time and to the British Standards. They must then plan persuasive approaches
and pitches that will convince potential clients to do business with the company. They must develop a
rapport with new clients and provide support that will continually improve the relationship. They are also
required to grow and retain existing accounts by presenting new solutions and services to clients. This
requires a thorough knowledge of the market, the solutions/services the company can provide, and of
the company’s competitors.
– Research and build relationships with new clients.
– Present new products and services and enhance existing relationships.
– Work with technical staff and other internal colleagues to meet customer needs.
– Arrange and participate in internal and external client debriefs.
Knowledge/Experience required:
Networking, Persuasion, Research, Writing, Closing Skills, Identification of Customer Needs and
Challenges, Market Knowledge, Professionalism, CRM, and Microsoft Office.
– Detailed knowledge of the principles of NACOSS, BAFE SP203/BS5839 and British Standards.
– Relevant qualifications FIA/NSI/LPCB/C&G although experience is more relevant to this post.
– Minimum of 3 years of experience in security systems estimating or closely related field
preferred.
– Excellent analytical and mathematical skills with competence in interpreting construction plans,
project specifications, and schedule information.
– Experience with estimating software and reporting tools, as well as Microsoft Office.
– Attention to detail and strong organizational skills in managing multiple projects.
– Excellent verbal and written communication skills – ability to communicate clearly with staff,
subcontractors, suppliers and customers.
– Understanding of security systems and security system components.
– Able to work openly and co-operatively with others.
– Self-motivation and ability to organise own time effectively.
– Good presentational skills; able to present complex ideas at the appropriate level to both
technical and non-technical audiences.

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