Business Development Manager

We are the leading timber window contractor in the UK specialising in the design, supply, and installation of high-quality windows, doors, and the restoration of existing windows for commercial developments and bespoke domestic projects.

About Us

We are proud of our 40-year heritage. Being privately owned and financially stable, our business continues to grow steadily, with a strong project pipeline, and a reputation for delivering quality, technical expertise, and long-term value. This is an exciting time to join a progressive company where you will be encouraged to contribute, collaborate, and make a real impact at a time when we are preparing for further growth and development of our business.

The Opportunity

We are offering an excellent opportunity for a talented and commercially minded Business Development Manager to lead our pre-contract efforts — from tender through to contract initiation. You will be responsible for preparing and submitting competitive tenders, developing, and maintaining client relationships, and supporting internal teams to ensure accurate and successful project delivery. You will also be a member of our commercial team securing our supplier relationships and optimising input costs. In addition to the core estimating duties, you will also play a key role within the commercial team growing its capabilities through leadership, knowledge sharing, mentoring, and continuous process improvement.

Key Responsibilities

• Prepare high-quality, competitive tenders and proposals in line with specifications, deadlines, and internal quality standards.
• Use End 2 End software to model and cost enquiries.
• Interpret architectural drawings and specifications; conduct quantity take-offs and build up unit rates.
• Coordinate and negotiate with suppliers and subcontractors to obtain best terms and accurate quotations.
• Maintain communication with clients regarding tender progress and follow-up.
• Analyse and propose value engineering options to ensure commercially competitive bids.
• Participate in and lead internal tender reviews and project handover meetings.
• Prepare project information packs for our delivery teams post-award.
• Ensure thorough record keeping including completion of tender checklists.
• Build long-term relationships with clients, referrers of business and suppliers alike.
• Provide CPD seminars, on behalf of Ventrolla, to architects and contractors in your region, when required.
• Support and mentor junior or apprentice team members through knowledge sharing.
• Contribute to process improvement and collaboration across commercial, technical, and delivery teams.

What We are Looking For

• Commercial acumen and ability to convert tenders into profitable projects.
• High attention to detail, time management, and organisational skills.
• Excellent communication and interpersonal skills — both written and verbal.
• Ability to manage multiple tenders simultaneously while maintaining accuracy and focus.
• Proactive attitude and approach to obtain new business through lead generation.
• Overall, a team-player with a structured approach to your work yet the drive and personality to make a positive impact within our tight-knit and highly motivated commercial team and able to project the business to trading relationships.