Plumbing first and second fix RAMS: what contractors should include.

Plumbing first- and second-fix RAMS should identify the actual system, drawings, work areas, isolations, pipe materials, jointing method, supports, sanitaryware, access, testing and interfaces. They should explain how hidden services, asbestos information, drilling dust, power tools, manual handling, hot work, water release, pressure testing and occupied areas will be controlled.

Under CDM 2015, contractors must plan, manage and monitor their work, provide suitable supervision and instructions, and coordinate with others. A generic method that says only “install pipework to drawings” does not show how the work will be delivered safely in the actual building.

The method should align with the relevant parts of the Construction Phase Plan, coordinated services drawings, specifications, manufacturer information, isolation arrangements, permits, COSHH assessments, inspection and test plan, and Principal Contractor requirements.

Define the plumbing package and its boundaries

State whether the work covers hot and cold water distribution, soil and waste pipework, drainage above ground, sanitaryware, taps, valves, supports, insulation or another defined system. Identify the floors, rooms, risers, service zones and connection points included.

Separate first-fix activities—setting out routes, drilling, installing supports and concealed pipework—from second-fix connections, sanitaryware, testing, commissioning and protection. Confirm who provides builders' work openings, fire stopping, electrical supplies, access panels and final commissioning information.

Keep the method within its assessed limits. Routine plumbing RAMS should not be stretched to cover gas work, medical gases, sprinkler or dry-riser systems, steam, complex pressure systems, confined spaces, live electrical work, major lifting operations, roof plant or specialist disinfection without separate assessment, design information and competent input.

What information should be obtained before work starts?

Confirm, where relevant:

• the current coordinated drawings, schematics, specification, equipment schedules and approved product information;
• the pipe material, sizes, jointing system, supports, insulation, valves, sanitaryware and connection details;
• the latest service information and the agreed method for checking walls, floors and ceilings before drilling or cutting;
• the asbestos register or suitable survey information for the work area, particularly where the building predates 2000;
• the existing system status, contents, temperatures, isolation and drain-down points, and who controls each isolation;
• the product labels, safety data and technical information for fluxes, solders, adhesives, sealants, cleaners and other substances;
• component weights and dimensions, delivery routes, storage, hoists, trolleys and team-lifting arrangements;
• the drills, cutters, presses, threading or jointing tools, power supply, extraction and competent users;
• working heights, floor conditions and suitable access equipment for overhead routes or risers;
• whether hot work is proposed, whether it can be avoided, and the project permit and fire precautions;
• the approved pressure or leak test method, medium, limits, exclusion arrangements and acceptance criteria;
• occupants, other trades, temporary services, escape routes, completed finishes and programme interfaces; and
• inspection, flushing, commissioning, labelling, records and handover requirements.

Do not invent pipe sizes, support centres, jointing temperatures, test pressures, test durations, flushing regimes or commissioning limits. Use the coordinated design, approved specification and manufacturer information, and raise discrepancies before installation.

Write the method in the order the work will happen

A project-specific sequence may cover:

1. confirming the latest drawings, specification, work-area release and system boundaries;
2. coordinating deliveries, storage, lifting aids, access, power, lighting and segregation;
3. checking asbestos and existing-service information before marking routes or disturbing the building fabric;
4. agreeing, applying and verifying the required water, electrical or other isolations and drain-down;
5. setting out routes, openings, supports, valves, access points and builders' work requirements;
6. drilling or cutting with the assessed service-avoidance, dust, noise, vibration and tool controls;
7. installing supports and first-fix pipework using the approved jointing system;
8. inspecting concealed work, recording hold points and obtaining release before enclosure;
9. completing the approved leak or pressure test under controlled conditions;
10. installing and connecting sanitaryware, taps, valves and other second-fix components;
11. flushing, commissioning, labelling and checking the system in accordance with the design and project plan;
12. protecting completed work, managing waste and recording inspections, test results and handover.

State who controls each isolation, accepts concealed work, authorises testing, witnesses results and releases the system. Explicit responsibilities and hold points prevent one trade's assumptions becoming another trade's risk.

Critical controls to address in plumbing RAMS

Hidden services and asbestos information

Review drawings, service information and the workface before drilling or cutting. Use the agreed detection and verification process and do not assume a clear drawing means the wall, floor or ceiling is clear. HSE warns that electrical cables can be present within building surfaces and that precautions are required before drilling.

Where the building was constructed or refurbished before 2000, obtain and understand the asbestos information that covers the actual work area. Stop if the information is missing, the material differs from the survey or a suspect material is found. A routine plumbing method is not an asbestos-work method.

Isolation, drain-down and uncontrolled release

Identify every energy and service source affected by the work. Isolations should be planned, secure against inadvertent reinstatement, clearly identified and verified before disconnection. Record who applies, controls and removes the isolation and how building users or other trades will be informed.

Allow for residual water, temperature and pressure. Drain to an agreed point, use suitable containers or temporary protection, and control the discharge so it does not create flooding, electrical, slip or environmental risks. Provide a clear response for an unexpected release and know where the upstream isolation is located.

Drilling, cutting, tools and dust

Choose methods that avoid or reduce drilling and cutting where reasonably practicable—for example coordinated openings or prefabricated sections. Where work is required, assess the substrate, tool, bit or blade, expected dust, noise, vibration, kickback and ejected material.

Use suitable tools, guards and effective extraction or suppression. Maintain equipment, route leads safely and remove damaged items from use. HSE identifies power-tool drilling and surface preparation as activities that can generate high dust levels; PPE should not replace control at source.

Manual handling and component installation

Assess the actual weights, shapes and routes for pipe bundles, sanitaryware, baths, trays, cylinders, pumps and access equipment. Consider stairs, restricted rooms, finished surfaces, awkward grips and the final positioning task—not just the delivery weight.

Deliver close to the point of use, use suitable trolleys, hoists or lifting aids, split loads where the product permits, and plan team handling where needed. Protect people from trapped fingers and unstable components during positioning. HSE recommends eliminating or reducing hazardous handling before relying on lifting technique.

Hot work, jointing products and COSHH

Consider whether press-fit, mechanical or other approved cold methods can remove the need for flame work. Where soldering or another hot-work process is specified, follow the project permit system, remove or protect combustible materials, provide suitable fire precautions and maintain the required fire watch.

Use current product labels and safety data to assess fluxes, solders, adhesives, sealants, cleaners and fumes. The COSHH assessment should address the actual quantity, method, ventilation, skin and eye contact, spill response, hygiene, storage and waste. A safety data sheet alone is not the assessment.

Pressure and leak testing

Use the approved test procedure and confirm that the installed system, temporary caps, plugs, hoses, gauges and connections are suitable for the proposed medium and pressure. Define the competent person, test boundary, calibrated equipment where required, exclusion arrangements, witness points and controlled release.

Do not use an improvised pressure or exceed the design or manufacturer limits. Keep people away from vulnerable ends and fittings, raise pressure in a controlled manner, monitor for abnormal movement or leakage and depressurise safely before adjustments. Record the result and any remedial work.

Access, occupied areas and housekeeping

Select access equipment from the working height, duration, reach and floor condition. Use suitable podiums, towers, small scaffolds or other equipment where required. Reposition access rather than overreaching, and do not improvise extra height with sanitaryware, pipe bundles, buckets or loose materials.

Coordinate isolations, noise, dust and loss of services with occupants and other trades. Maintain escape routes, protect openings and completed finishes, cap open pipework, remove sharp offcuts and keep tools, leads and materials out of circulation routes. Release areas only after the agreed checks and cleaning.

Water-system hygiene and commissioning

Prevent contamination by storing and handling components appropriately, keeping open ends capped and using clean equipment. Follow the project's approved flushing, disinfection and commissioning plan where applicable. Do not substitute generic temperatures or flushing periods for the system design and commissioning requirements.

Coordinate incomplete or temporarily unused systems so that water is not left stagnant without an agreed management arrangement. Record valve positions, test status, labelling, commissioning information and any restrictions passed to the Principal Contractor, client or facilities team.

How should the RAMS be briefed and reviewed?

The supervisor should brief the workforce on the actual system, routes, isolations, asbestos and service information, products, jointing method, access, test boundaries, permits, interfaces, hold points and stop-work conditions. Check understanding at the workface rather than treating signatures as the briefing.

Review the RAMS when drawings or routes change, a different material or jointing system is proposed, the existing system differs, services or suspect materials are found, access or occupancy changes, a test fails, controls are ineffective, or an incident or near miss identifies a gap.

The contractor remains responsible for planning, managing and monitoring its work. A Principal Contractor's review or acceptance does not transfer that duty.

Can a plumbing RAMS template be used?

A relevant template can provide a structured starting point, but it cannot know the project's system, routes, existing services, asbestos information, pipe materials, jointing method, isolations, test procedure, occupants or Principal Contractor requirements.

The IMERI H&S Partners Plumbing First & Second Fix RAMS template is currently available as a digital product. A competent person must check that its scope matches the proposed work, assess the actual project, adapt the hazards, sequence and controls, coordinate it with current design and manufacturer information, and brief the workforce.

Buying or downloading a template does not make it approved, suitable for the project or ready to issue. It does not replace coordinated drawings, isolation plans, asbestos information, COSHH assessments, test procedures, permits or Principal Contractor review.

When is project-specific RAMS support useful?

Support may be useful where the existing system remains live, the premises are occupied, service routes are congested, several jointing methods are proposed, sanitaryware is heavy, hot work or controlled testing is required, or review comments show that the proposed method is incomplete.

For projects in Watford, Hertfordshire, London and the South East, send the coordinated drawings, system specification, pipe and jointing information, isolation plan, access requirements, testing procedure, programme and Principal Contractor requirements. IMERI H&S Partners can then confirm an appropriate scope for project-specific RAMS support.