Maintenance
Design & Engineering
Manufacturing
Installation
Maintenance
Our
Capabilities
Lifetime Partnership Through Expert Service
WITT UK Group’s service division, operating through Witt & Son, provides comprehensive maintenance and support for industrial ventilation systems across the UK and globally. With over 70 years’ experience maintaining critical air movement equipment, our nationwide network of service engineers ensures maximum availability for systems where failure isn’t an option—from hospital smoke extraction to tunnel emergency ventilation, from nuclear facility cooling to 24/7 manufacturing processes. Our service capabilities extend far beyond routine maintenance, encompassing vibration analysis using advanced diagnostic equipment, thermographic surveys identifying developing issues, performance testing validating efficiency, bearing analysis predicting failure, and acoustic surveys ensuring compliance. We maintain extensive spare parts inventory including critical components for immediate dispatch, obsolete parts for legacy equipment, and emergency stockholdings at strategic locations. This comprehensive service infrastructure, combined with 24/7 emergency response capability, ensures your ventilation systems deliver reliable performance throughout their operational life—whether days, decades, or generations. Our service excellence is demonstrated through 99.9% availability achieved for critical systems, 2-hour emergency response nationwide, and partnerships extending 40+ years with major industrial clients.
Predictive Intelligence Preventing Failures
Modern maintenance transcends reactive repairs, employing sophisticated predictive technologies identifying issues before they impact operations. Our condition monitoring programmes utilise vibration analysis detecting bearing degradation months before failure, thermal imaging revealing hot spots indicating electrical or mechanical issues, oil analysis identifying contamination and wear particles, and acoustic monitoring discovering blade damage or imbalance. This data feeds predictive algorithms determining optimal maintenance intervals—not too early wasting component life, not too late risking failure. Remote monitoring systems provide continuous oversight with real-time performance data, automatic alarm notification, trend analysis identifying degradation, and expert diagnosis without site visits. For critical applications, we install permanent monitoring systems enabling continuous condition assessment, automatic reporting, and integration with facility management systems. This predictive approach typically reduces maintenance costs by 25-40% whilst improving availability to exceed 99.9%. Our service management software tracks all activities—scheduling planned maintenance, recording findings and actions, managing spare parts inventory, and generating compliance reports—ensuring nothing is overlooked. Whether maintaining a single fan or managing nationwide estates, our service excellence ensures ventilation systems perform reliably, efficiently, and safely throughout their operational life.
- 24/7 emergency response with 2-hour arrival for critical systems
- Nationwide network of qualified service engineers
- Predictive maintenance using vibration, thermal, and oil analysis
- Remote monitoring with real-time diagnostics
- Extensive spare parts inventory including obsolete equipment
- 99.9% availability achieved for critical installations
Why Choose
Maintenance
RAPID
RESPONSE
24/7 emergency support with 2-hour response for critical systems and nationwide coverage.
PREDICTIVE INTELLIGENCE
Advanced diagnostics identifying issues months before failure, preventing costly downtime.
LIFETIME SUPPORT
Comprehensive service from commissioning through decommissioning, including obsolete equipment.
Frequently
Asked Questions
What maintenance services do you offer?
Our comprehensive maintenance portfolio addresses all aspects of ventilation system support. Preventive maintenance includes scheduled inspections, lubrication programmes, filter replacements, belt adjustments, and cleaning regimes. Predictive maintenance employs vibration analysis per ISO 10816, thermal imaging to BSEN 13187, oil analysis detecting contamination, and performance trending identifying degradation. Corrective maintenance provides rapid response to failures with diagnostic expertise, genuine spare parts, and quality repairs restoring full functionality. Specialist services encompass dynamic balancing on-site or in works, bearing replacement using laser alignment, impeller refurbishment restoring efficiency, and motor rewinds by approved partners. Compliance support ensures regulatory adherence through statutory inspections, insurance surveys, LEV testing to HSE guidelines, and audit support demonstrating due diligence. This comprehensive capability means single-source support for all ventilation maintenance requirements.
How quickly can you respond to emergencies?
Emergency response times vary based on contract level and system criticality. Platinum contracts guarantee 2-hour response for critical life safety systems with resident engineers for major sites. Gold contracts provide 4-hour response nationwide through strategic engineer deployment. Silver contracts ensure next-working-day attendance for non-critical systems. Our 24/7 call centre triages emergencies, immediately dispatching nearest qualified engineer whilst providing telephone support for immediate actions. Mobile engineers carry comprehensive spares enabling most repairs during first visit. For complex failures, our technical team provides remote support whilst specialists mobilise. Major component failures trigger contingency plans including temporary equipment installation, expedited manufacture of replacements, and parallel procurement reducing downtime. This responsive infrastructure has achieved 99.9% availability for critical systems, essential for hospitals, tunnels, and data centres where ventilation failure has serious consequences.
What's included in service contracts?
Service contracts provide planned maintenance ensuring reliability whilst controlling costs. Standard inclusions cover scheduled inspections at appropriate intervals, statutory compliance testing and certification, unlimited technical telephone support, and detailed service reports with recommendations. Enhanced contracts add emergency callout coverage, inclusive labour for repairs, discounted spare parts, and remote monitoring services. Bespoke agreements address specific requirements including resident engineers for critical facilities, guaranteed response times, performance guarantees with penalties, and risk-transfer arrangements. Contract benefits include fixed annual costs aiding budget planning, priority response over ad-hoc requests, comprehensive records demonstrating compliance, and extended equipment life through proper maintenance. Flexible terms accommodate varying needs—from single fans to nationwide estates, from basic inspection to comprehensive support. Our service contracts typically reduce total maintenance costs by 20-30% whilst improving reliability through planned intervention.
How do you handle spare parts availability?
Spare parts strategy ensures rapid restoration of failed equipment, critical for maintaining availability. Strategic stockholdings include wear parts (bearings, belts, filters) for immediate dispatch, critical spares preventing extended downtime, and emergency stocks at regional locations. For obsolete equipment, we maintain extensive inventory of discontinued parts, manufacture replacements using original drawings, and source alternatives through global networks. Planned maintenance identifies upcoming requirements, enabling procurement before need. Our parts database, covering 50+ years of products, quickly identifies correct components using serial numbers. Express manufacturing produces custom parts within days for urgent requirements. Condition-based replacement optimises parts usage—not too early wasting value, not too late risking failure. Clients can establish dedicated spares holdings, ensuring immediate availability whilst we manage inventory. This comprehensive parts capability minimises downtime, essential for critical ventilation systems.
What qualifications do your service engineers hold?
Service engineers maintain comprehensive qualifications ensuring competent, safe service delivery. Core certifications include City & Guilds mechanical/electrical qualifications, F-Gas handling for refrigerant systems, CompEx for hazardous areas, and confined space entry permits. Safety qualifications encompass CSCS cards for construction sites, IPAF for access platforms, asbestos awareness, and first aid certification. Specialist training covers manufacturer-specific equipment, vibration analysis (BINDT Category II), thermal imaging (Level 1), and nuclear safety for controlled areas. Continuous development ensures current competency through regular refresher training, new technology updates, safety briefings, and best practice sharing. Internal competency assessments validate capability before independent working. For regulated industries, engineers hold specific approvals—DBS checks for schools, offshore survival for platforms, and security clearance for defence sites. This comprehensive qualification framework ensures engineers can safely, competently service any ventilation system in any environment.
How do you ensure regulatory compliance?
Regulatory compliance is integral to service delivery, protecting clients from prosecution whilst ensuring safety. Our service ensures adherence to Workplace (Health, Safety and Welfare) Regulations for ventilation adequacy, Control of Substances Hazardous to Health (COSHH) for LEV testing, Regulatory Reform (Fire Safety) Order for smoke control systems, and Pressure Systems Safety Regulations where applicable. Statutory inspections follow prescribed frequencies with insurance company requirements, LEV testing per HSE HSG258, and smoke control testing to BS 9999. Documentation demonstrates compliance through comprehensive service reports, test certificates with clear pass/fail, asset registers tracking inspection dates, and audit trails for regulatory inspection. Non-compliance triggers immediate notification with remedial recommendations, temporary measures ensuring safety, and expedited repairs restoring compliance. Our compliance management software tracks inspection schedules, generates reminder notifications, and produces compliance reports for management review. This systematic approach ensures continuous compliance, essential for operational legitimacy and insurance validity.