Regular maintenance schedules
Establishing regular maintenance schedules is crucial for the prevention of leaks. Inspections should be conducted at least bi-annually to check for signs of wear, corrosion, or damage to HVAC systems and roofing materials. Keeping thorough records of maintenance activities will also aid in identifying recurring issues and planning for necessary upgrades.
Why a planned schedule matters
Leaks are rarely “sudden”. In most cases you get early warning signs: staining, condensation, corrosion, loose fixings, split seals, blocked drains, minor weeps, or changes in vibration and noise. A planned schedule helps you spot these early, reduce unplanned downtime, protect stock and equipment, and lower the risk of slips and secondary damage.
Suggested inspection frequency
Use this as a practical baseline, then adjust based on your building, usage, and manufacturer guidance.
Weekly to monthly (quick visual checks)
- Check plant rooms, risers, service corridors, and roof access points for drips, staining, damp patches, or puddling.
- Inspect HVAC condensate drain lines and drain pans for blockages, standing water, and algae build-up.
- Look for changes in vibration/noise, loose brackets, and rubbing hoses or cables near moving components.
- Confirm spill response items are present and accessible (pads, socks, drip trays, signage).
Quarterly (planned preventative tasks)
- Check seals, gaskets, flexible hoses, couplings, and valve packing for early wear.
- Inspect roof drainage routes: gutters, outlets, downpipes, and internal drain points.
- Review bunds, sumps, and containment areas for cracks, deformation, or pooled liquids.
- Verify correct storage and handling of fluids, including container condition and labelling.
Bi-annual (minimum recommended)
- Carry out a detailed inspection of roofing membranes, flashings, penetrations, and joints.
- Check HVAC units, pipe insulation, brackets/hangers, and corrosion protection for deterioration.
- Inspect pumps and pipework for signs of corrosion, pinholing, or repeated “weep points”.
- Assess any areas with repeat call-outs and plan corrective upgrades.
Annual (deeper review)
- Perform an annual trend review using your maintenance records (recurring faults, parts replaced, downtime, call-out costs).
- Update your spares strategy for common failure points (hoses, clamps, seals, valves, condensate components).
- Refresh staff briefings: what to report, how to isolate safely, and where response equipment is stored.
What to look for during inspections
HVAC and building services
- Condensate: blocked drains, overflowing pans, damaged traps, poor fall, or cracked pipework.
- Corrosion: on pipework, joints, supports, drip trays, and around insulation seams.
- Insulation: wet insulation, split vapour barriers, mould, or persistent condensation.
- Connections: worn hoses, perished seals, loose couplings, sweating unions, and leaking valves.
Roofing and high-level areas
- Membranes: splits, blisters, punctures, shrinkage, and seam separation.
- Penetrations: failed seals around ducts, pipe penetrations, fixings, and plant supports.
- Drainage: blocked outlets, ponding water, cracked downpipes, and leaks at joints.
Record keeping that actually helps
Good records make it easier to spot patterns and justify upgrades before a small issue becomes a costly incident. Capture:
- Date and time, inspector/contractor, and area/asset ID
- What was checked (a simple tick list is fine)
- Findings (include photos where possible)
- Actions taken and parts used
- Any isolation steps, permits, and re-commissioning notes
- Follow-up date and responsibility
Practical controls while repairs are planned
When you identify a leak risk but the permanent fix cannot happen immediately, use temporary controls to reduce disruption and protect people and property:
- Use a Leak Diverter to channel nuisance roof/ceiling leaks to a safe collection point.
- Position drip and spill trays under known weep points, pumps, valves, and dosing systems.
- Keep appropriate absorbents and response kits available for the fluids on site via our Spill Kits range.
Related Serpro guidance
External references (optional)
If you manage building services or workplace equipment, these references can help you benchmark your approach: