Pre-Installation Risk Assessment for Museums, Galleries & Heritage Sites | SERPRO

Pre-installation risk assessment

Managing contractors effectively during installation work is crucial for preventing spills that could harm valuable collections in museums, galleries, and heritage sites. Implementing best practices ensures that any potential risks are mitigated, thus safeguarding both the environment and the integrity of the collections.

A pre-installation risk assessment is the practical step that turns “we’ll be careful” into a clear plan: what could spill, where it could travel, what it could damage, and exactly how the contractor team will prevent and respond.

Why it matters in collection environments

Collections are vulnerable to secondary damage: staining, odour absorption, corrosion, mould risk, and residue transfer to porous materials.
Small leaks can travel: through expansion joints, service penetrations, lift shafts, drains, or under display plinths and racking.
Access constraints are common: narrow routes, public areas, time windows, and restricted plant/vehicle movements.
Clean-up methods must be appropriate: some chemicals and aggressive cleaners can create more harm than the original spill.

Scope the work before anyone arrives

Start by defining the exact task, location, duration, and what “good” looks like at handover. Capture the detail that usually causes problems on the day:

Materials and substances being brought on site (paints, solvents, oils, coolants, resins, fuels, cleaning agents, adhesives).
Tools and plant (MEWPs, generators, pumps, compressors, lift equipment, wheeled rigs, temporary bunds).
Decanting, mixing, refuelling, draining, or pressure testing activities (these are high-risk spill moments).
Routes in and out, including protected floors, thresholds, lifts, and staircases.
Areas of sensitivity: stores, conservation spaces, plant rooms above galleries, display zones, archives, and public circulation routes.

Identify spill hazards and “pathways”

For each substance/activity, document both the spill likelihood and the consequence. In museums and heritage sites, consequence often depends on where liquids can travel:

Nearby drains, gullies, channels and door thresholds.
Service risers, cable routes, floor voids, expansion joints and lift shafts.
Overhead services: pipework, HVAC condensate lines, sprinkler systems, roof voids and plant above collections.
Surface types: timber, stone, porous tiles, historic floors, carpet, and conservation finishes.

If you want a recognised structure for risk assessment steps and recording, HSE guidance is a good reference point: Steps needed to manage risk (HSE).

Contractor controls that prevent spills

Agree controls in writing before mobilisation and make them part of the induction / permit-to-work where applicable:

Delivery and storage rules: no unlabelled containers, lids on at all times, and secondary containment for liquids.
Designated mixing/decanting areas: away from collections, with a drip tray or bunded protection beneath.
Vehicle and plant restrictions: defined routes, protective floor coverings, and drip protection where parked.
Housekeeping standards: wipe-as-you-go, no “end of day” clean-up for wet works, immediate isolation of any leak.
Supervision and sign-off points: who authorises high-risk steps such as draining lines, refuelling, or pressure tests.
Waste and used absorbents: sealed bagging, labelled waste streams, and removal plan (especially for oils/chemicals).

Spill prevention kit: what to stage on site

The best spill response is one you never need. Staging the right equipment at the right place reduces both likelihood and impact:

Containment first: drip trays under decanting points and leak-prone equipment. See Drip and Spill Trays.
Right absorbents for the liquid: oil-only, chemical, or general purpose depending on substances used. See Absorbents.
Ready-to-use response packs: a spill kit sized to the credible worst-case spill for that task/area. See Spill Kits.
Protect pathways: isolate drains/gullies and stop spread early. See Drain Protection.
Overhead leak controls: where work happens above sensitive areas, plan for overhead failure and diversion. See Leak Diverter.

For guidance on selecting products that are suitable for sensitive environments, see Conservation-safe products.

Emergency readiness

Even with good controls, you still need a simple, rehearsed response. Make sure everyone knows:

Who to call immediately (site contact + contractor supervisor) and what constitutes an “incident”.
Where the spill kit/absorbents are staged (not locked away, not on another floor).
How to isolate the area safely (barriers/signage for public spaces, slip hazards, and protected routes).
How to protect collections fast (temporary covers, moving vulnerable items only if safe and authorised).
How to dispose of contaminated absorbents in line with site requirements.

Internal resources you may find useful:

Pre-installation checklist (quick use)

Use this as a final pre-start confirmation:

All substances listed, labelled, and approved for site use; SDS available where required.
Decanting/mixing/refuelling points agreed and protected (drip trays/bunding in place).
Spill response equipment staged at point of work (not just in a store room).
Drain protection and spread controls ready where relevant.
Routes protected and agreed; public interface controls in place (barriers/signage).
Named supervisor responsible for spill controls and end-of-shift checks.
Incident reporting route understood; escalation triggers agreed.

Construction and venue considerations

If the work falls under construction activities, HSE guidance on CDM 2015 can help clarify duties and planning expectations: CDM 2015 overview (HSE). For event and venue-type settings, this is also relevant: CDM and the entertainment industry (HSE).

Need help choosing what to stage on site? As a rule of thumb, set spill controls based on the credible worst-case spill for the task (volume, viscosity, and pathway risk), then position containment and absorbents where the spill is most likely to happen (decanting points, connections, and under plant).