A leading UK-based engineering business is seeking an experienced Business Development Manager to drive strategic growth across the HVAC and building services market. This is a high-impact, senior-facing role focused on securing technically complex, high-value projects rather than volume-based sales. You will play a central role in shaping market strategy, developing key client relationships, and expanding presence across HVAC systems and long-term maintenance contracts. The business operates as a specialist, engineering-led provider with strong financial backing and national reach, delivering bespoke solutions. Key Responsibilities: Identify, develop and secure new business opportunities within HVAC and building services Build and maintain long-term relationships with end users, consultants, main contractors, developers, and key supply chain partners Manage the full sales lifecycle from initial engagement through to tender submission and contract award Collaborate closely with internal teams including estimating, engineering, and operations to ensure technically robust and commercially viable solutions Develop and execute a structured sales and growth strategy Target and win high-value projects across complex mechanical and building services solutions, including installation and long-term maintenance agreements Represent the business at client meetings, site visits, and industry events Maintain accurate pipeline management, forecasting, and reporting Act as a senior ambassador for the business, reinforcing a reputation for technical excellence and bespoke delivery Essential requirements: Proven track record in business development within HVAC, mechanical building services, or commercial heating Strong understanding of HVAC systems and associated infrastructure Experience selling complex, engineered solutions rather than product-only or volume sales Established network across consultants, contractors, and end users is highly desirable Commercially astute with the ability to manage long sales cycles and high-value deals Strong communication and stakeholder management skills Comfortable operating in a strategic, senior-level role with autonomy and influence Full UK Drivers Licence Willing to travel