Technical Maintenance
Planned, preventive and predictive maintenance for critical systems.
An enterprise approach to technical maintenance.
Technical Maintenance is the discipline that determines whether a building runs reliably or absorbs unplanned downtime, accelerated wear and statutory exposure. Crown approaches it as an engineering function, not a janitorial one — led by chartered engineers and supported by trained, multi-disciplinary technicians.
Our regimes are built around four methodologies: planned preventive maintenance (PPM) for routine intervention; predictive maintenance using IoT and condition data; corrective maintenance for emerging defects; and emergency response for unplanned failure. Each asset moves between regimes based on its criticality and condition.
Crown's Technical Maintenance practice keeps the systems your building depends on running reliably, efficiently and in compliance — from HVAC and electrical infrastructure to fire & life safety and BMS. We combine in-house engineering teams with specialist subcontract partners, all coordinated through our CMMS.
Critical systems do not fail gradually — they fail at the moment of greatest demand. A chiller that fails in August, a fire pump that fails in an alarm event, or a generator that fails during a grid outage can cost orders of magnitude more than the maintenance that would have prevented it. Disciplined PPM is the cheapest insurance in a building.
Every asset under our care is registered, criticality-scored, and assigned a PPM schedule built from manufacturer specifications, statutory requirements and engineering experience. Predictive sensors are deployed on the most critical plant. Every visit is evidenced in the CMMS with photographs, readings and engineer signature.
Everything we cover.
Electrical Systems
LV/HV distribution, switchgear, transformers, UPS, generators and emergency lighting.
Mechanical Systems
Pumps, motors, AHUs, fans and rotating plant.
HVAC
Chillers, cooling towers, AHUs, FCUs, VAV/VRF, controls and refrigerant management.
Plumbing
Domestic water, drainage, booster sets and water quality regimes (incl. Legionella).
Fire Fighting Systems
Sprinklers, hydrants, wet/dry risers, suppression and fire pumps.
Fire Alarm Systems
Detection, panels, sounders, voice alarm and interfaces.
Building Automation (BMS)
Front-end, controllers, sensors, point commissioning and analytics.
Generators
Standby diesel and gas generators, fuel polishing, load banks.
UPS Systems
Static UPS, battery banks, bypass and load testing.
Water Systems
Cold-water storage, calorifiers, TMVs and L8 compliance.
Elevators
Passenger, goods, MRL, traction and hydraulic lifts.
Escalators
Inspection, lubrication, comb and step plate replacement.
Energy Systems
Sub-metering, BMS optimisation and energy reporting.
Building Fabric
Roof, façade, internal finishes and joinery.
Civil Works
External works, drainage, paving and structural inspection.
Roof Maintenance
Inspection, gutter clearance and waterproofing.
Façade Maintenance
Cladding, glazing, joints and access systems.
Why clients retain Crown.
Reduced Downtime
Planned regimes that pre-empt failure on critical assets.
Asset Life Extension
Lifecycle modelling that defers capex and protects equipment value.
Compliance Assurance
Audit-ready statutory inspection records on every asset.
Energy Performance
Optimised set-points and operating regimes reduce consumption measurably.
A defined operating method.
- 01
Asset Register
Full equipment audit, criticality scoring and PPM schedule build.
- 02
Planned Maintenance
Calendar-based PPM executed via CMMS with full digital evidence.
- 03
Reactive Response
Defined SLAs by criticality, with engineer dispatch from local pool.
- 04
Performance Review
Monthly reliability and compliance reporting to the owner.
Tools we deploy.
- ▸Enterprise CMMS for asset, PPM and work-order management
- ▸Condition-based monitoring on critical rotating plant
- ▸Vibration, temperature and current sensors for predictive analytics
- ▸BMS integration with automated fault detection and diagnostics
- ▸Mobile-first engineer workflows with QR-coded asset identification
- ▸Live owner dashboards covering reliability, compliance and energy
What you receive.
- ▸Monthly operational report covering SLA, KPI and compliance status
- ▸Quarterly business review with the owner's asset management team
- ▸Annual asset condition and lifecycle plan refresh
- ▸Statutory inspection register, audit-ready at all times
- ▸Incident, near-miss and HSE statistics with root-cause analysis
- ▸ESG and energy performance dashboards aligned to GRESB/CRREM
Measured, every month.
PPM Completion
≥ 98% of scheduled PPM completed within window.
Reactive SLA
Response and resolution times tracked by criticality, target ≥ 95%.
First-time Fix
≥ 85% of reactive jobs resolved on first visit.
Critical Asset Uptime
≥ 99.9% on tier-1 systems (chillers, UPS, generators, lifts).
Statutory Compliance
100% inspections completed and evidenced within window.
Where we apply this service.
Often delivered together.
Crown deploys a tier-1 enterprise CMMS with mobile workforce, IoT integration and owner-facing dashboards as standard.
Yes. The PPM schedule incorporates every applicable statutory regime for the jurisdiction, with full inspection records available on demand.
Yes. Tier-1 critical assets are instrumented with vibration, temperature and current sensors feeding a fault-detection model that flags emerging issues before failure.