IDWe Ltd completed a comprehensive fan coil unit refurbishment, FCU servicing, control upgrades and system commissioning at a prestigious Savile Row office building in Mayfair. The work improved occupant comfort, increased energy efficiency and enhanced long-term system reliability.
Project: Fan Coil Unit Repairs
Location: 5 Savile Row, London W1S
Client: Newmark
Service: HVAC Services
Sector: Commercial Estate Agent
Works Included: 12 New Controls, Replacing Several Valves, Servicing and more.
Fan Coil Unit (FCU) Repairs for Commercial Offices
Delivering fan coil unit repairs within a commercial office building in the renowned Savile Row, West London required careful planning and coordination. This project formed part of a wider refurbishment programme following the departure of the previous tenant.
Before new occupants could move in to the 5th floor of No 5 Savile Row, the client wanted to ensure the heating, cooling and ventilation systems (HVAC) operated efficiently and reliably.
As a result, the project required a fast turnaround in order for the new tenants to move in, while maintaining high engineering standards throughout the refurbishment.
Thanks to our extensive experience delivering HVAC services across London, our engineers planned and executed the works efficiently. The scope included fan coil unit repairs, control upgrades, valve replacements, airflow modifications and full system commissioning.
Furthermore, close collaboration between IDWe Ltd and our sister company Magpie BMS, ensured both the mechanical and controls elements of the project progressed smoothly.
By completing the works quickly and to a high standard before the arrival of new tenants, the client could present a fully operational and professionally maintained office environment ready for occupation.
How did IDWe Ltd Deliver the FCU Repairs and Refurbishment?
Our engineers implemented a structured refurbishment programme with a quick turnaround in mind for new tenants while maximising performance improvements.
Controls Upgrade and Commissioning
We supplied and installed new controls throughout the system. Meanwhile, Magpie BMS upgraded the controls infrastructure serving all 12 fan coil units.
Following installation, both teams carried out extensive commissioning to ensure accurate operation and communication between components. As a result, building operators gained greater visibility and control of HVAC performance.
Valve and Actuator Replacement
Our engineers replaced chilled water and low temperature hot water commissioning valves together with associated bonding points. Additionally, we installed new valves and actuators on each fan coil unit.
These upgrades improved water flow control and allowed more accurate temperature regulation throughout the 5th floor.
Fresh Air System Modifications
FCU 512 required modifications to its fresh air arrangement. Therefore, we altered the existing system and installed secondary volume control dampers.
This work improved airflow management and supported more balanced environmental conditions.
Coil Cleaning and Condensate Testing
Dirty coils often contribute to poor performance and excessive energy consumption. Accordingly, we cleaned the fan coil unit coils on both the air and water sides.
We also tested condensate systems to verify correct drainage and identify any potential blockages.
Airside and Waterside Commissioning
Commissioning forms a critical part of any fan coil unit refurbishment project. Consequently, we commissioned all 12 coil units across both air and water systems. This process ensured each unit achieved its design performance requirements.
System Validation and Water Analysis
Beyond the FCUs themselves, we validated the main branch water systems and supply air systems serving the building. Furthermore, we sampled and analysed the closed water circuits.
This assessment provided valuable information regarding system condition and potential future maintenance requirements.
What Benefits did the Client Achieve?
The completed project delivered several immediate and long-term benefits – see below:
- Improved Temperature Control
- Greater Energy Efficiency
- Enhanced Reliability
- Better Indoor Comfort
- Improved Asset Life
What Were the Results of the Fan Coil Unit Refurbishment?
Following completion, the offices HVAC system achieved the standard required for incoming tenants.
Key project outcomes included:
- Refurbishment and recommissioning of 12 fan coil units
- New controls installed and commissioned
- Replacement valves and actuators throughout the system
- Improved heating and cooling performance
- Balanced airflow across the space
- Enhanced control of water flow through FCU coils
- Cleaned and tested 12 fan coil units
- Validated air and water distribution systems
- Improved readiness for tenant occupation
- Greater confidence in long-term system performance
Through a combination of FCU repairs, controls upgrades and commissioning activities, the project restored performance across the space HVAC systems and prepared the space for its next occupants.
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Frequently Asked Questions for FCUs Services
How often should fan coil units be serviced?
Most commercial fan coil units should receive maintenance at least every six months. High-use environments may require more frequent servicing.
What are the most common fan coil unit repairs?
Common FCU repairs include valve replacement, actuator replacement, controls upgrades, fan motor repairs, coil cleaning and condensate system maintenance.
How do I know if my FCU needs repair?
Signs include poor temperature control, unusual noises, reduced airflow, water leaks, increased energy consumption and frequent fault alarms.
Can fan coil unit refurbishment extend equipment life?
Refurbishment often restores performance and extends operational lifespan without requiring complete replacement.
What is included in fan coil unit servicing?
Typical FCU servicing includes: coil cleaning, filter inspection, condensate testing, valve checks, actuator testing, control verification and performance assessments.
Why is FCU commissioning important?
Commissioning ensures fan coil units operate correctly and achieve design airflow, water flow and temperature requirements.
Do FCU repairs improve energy efficiency?
Well-maintained fan coil units consume less energy and often deliver significant operational savings.
Why Choose IDWe Ltd for Fan Coil Unit Repairs in London?
IDWe Ltd delivers specialist mechanical services across commercial, industrial and critical environments.
Our engineers combine practical experience with detailed commissioning expertise to restore system performance and reliability.
Whether clients require FCU repairs, fan coil unit servicing, fan coil refurbishment, valve replacement, controls upgrades or complete HVAC system optimisation, we provide tailored solutions that minimise disruption and maximise operational performance.
Working alongside Magpie BMS also allows us to deliver integrated mechanical and controls solutions under one coordinated project team.
Find out more about our Heating, Ventilation and Air Conditioning Services.
How can we help you?
Discuss your next HVAC project with our specialist team and to get a quote, please call 020 8302 7644 or email: info@idwe.co.uk
