This case study showcases a Boiler Installation & Commissioning Project in London delivered by Bigness Group’s mechanical services team. It covers the installation and commissioning of Daikin and Worcester high-efficiency boilers, including stainless-steel pipework, advanced control integration, pressure testing, and full safety certification. The project demonstrates our ability to deliver reliable heating and hot water solutions for commercial plant rooms with minimal disruption — completed on time and on budget.
Client: Confidential (Commercial Site)
Date: 28 July 2025
Engineer: Supervised by Bigness Group
Project Overview
Bigness Group carried out the full installation and commissioning of multiple high-performance Daikin and Worcester boilers, ensuring maximum efficiency, safety, and compliance with industry standards.
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Sector: Commercial / Residential Infrastructure
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Scope: Heating & Hot Water Systems Installation
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Location: London
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Duration: 1 week
Project Objectives
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Install a high-efficiency heating system for long-term performance.
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Ensure all gas and water connections meet safety and compliance requirements.
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Provide on-site supervision and testing by an experienced engineer.
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Minimise downtime and disruption to the client’s operations.
Scope of Works
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Removal of outdated and inefficient systems.
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Installation of Daikin and Worcester gas boilers with advanced control units.
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Pressure testing, system balancing, and safety certification.
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Integration with existing hot water and heating circuits.
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Final commissioning, handover, and client briefing.
Challenges & Solutions
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Challenge: Tight deadline for system replacement.
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Solution: Dedicated project team and extended on-site hours to ensure completion on schedule.
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Challenge: Complex pipework and electrical integration.
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Solution: Direct supervision by Bigness Group engineer, ensuring every connection was checked, tested, and signed off.
Results
- Full installation completed on time and on budget.
- Heating system efficiency improved by over 35% compared to old units.
- Safety certification issued and system approved for operation.
- Client praised the professionalism and transparency of the process.
Client Testimonial
“Bigness Group made the installation stress-free. The team worked quickly, kept us informed throughout, and delivered an excellent system that will serve us for years to come.” – Client Representative
Key Takeaways
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Real expertise on-site makes the difference between a good and a great installation.
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Direct supervision ensures compliance and long-term reliability.
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Choosing Bigness Group means your project is delivered right, first time.
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