| Occupied domestic site: householder, family members, children, pets and visitors enter the work area or are exposed to dust, vapours, tools and wet floor | Householder, children, vulnerable occupants, pets and visitors; also the operatives if they are interrupted. Harm from dust and vapour inhalation, slips, cuts from tools or knives left out, and contact with wet compound or adhesive. | Operatives are experienced and CSCS carded. | 4×3=12 | Agree the work area and the exclusion zone with the client on the pre-start walk. Close off the kitchen-diner with a sealed dust screen, doors closed and signs. Keep the hallway route clear and protected. Keep tools, knives, adhesive and primer in a closed box or the work area at all times, never left unattended. Agree where children and pets will be kept and when the area is safe to re-enter. Agree timings for noisy and dusty work. Tell the client about drying and curing times. Operatives stay in the area or lock it off when they leave. No client use of the kitchen during grinding, priming and adhesive work. | Low |
| Respirable crystalline silica (RCS) dust | The operatives doing the work and anyone nearby breathing the dust, including the householder and others in the house. Long-term harm to the lungs (silicosis, lung cancer, COPD). | Floor grinder with on-tool extraction. | 4×5=20 | Plan the work to reduce grinding to what is needed to prepare the floor, and use hand scraping where suitable. Use on-tool extraction (M-class or H-class vacuum) on the floor grinder and any other drill, chaser or saw used on concrete, screed or mortar. Keep others out of the area with the dust screen and doors closed. Clean up with an H-class or M-class vacuum, never dry sweeping or compressed air. Then RPE with an assigned protection factor of at least 20 (FFP3 disposable or equivalent), face-fit tested and worn clean shaven. Follow the Control of Substances Hazardous to Health Regulations (COSHH) 2002, HSE Construction Information Sheet CIS36 'Construction dust' and the RCS workplace exposure limit of 0.1 mg/m3 (8-hour TWA) in HSE EH40/2005. Check the extraction hose, filter and bag at the start of each day. | Medium |
| Disturbing unidentified asbestos-containing materials in the existing floor, such as old floor tiles, adhesive, backing or screed, when removing, grinding or scraping the subfloor | Operatives, the householder and others in the house. Asbestos fibres can cause fatal lung disease years later. | None until the asbestos check is completed. | 2×5=10 | Before work starts, check the client's asbestos register or management survey for the kitchen-diner floor. If the register does not cover the area, and the work is intrusive, a refurbishment survey of the area is needed first (Control of Asbestos Regulations 2012, Regulation 5, identifying asbestos before work). Record the check on the pre-start sheet. Stop-work rule: if suspect material is found, stop, keep people away, close the room and report it to the Lead Floor Layer and the client before work carries on. Do not use the grinder or sweep the dust. Brief both operatives. | Medium |
| Skin and eye contact with the cement-based levelling compound: dermatitis, alkali burns and eye damage; inhalation of cement dust when opening bags and mixing | Operatives mixing and spreading the compound; the householder if dust spreads | Mixing paddle and bucket; operatives trained. | 3×3=9 | Use a ready-mixed or low-dust product where practical. Open bags carefully, mix low in the bucket and keep bags in a closed area. Keep the mixing area away from the household and sealed from the rest of the house. Wash skin promptly if splashed and keep an eye-wash bottle in the work area. Follow COSHH 2002. Take the hazard information and the PPE specification from the product Safety Data Sheet. Then use gloves to BS EN 374 and BS EN ISO 21420, eye protection to BS EN 166 and waterproof knee protection. Do not kneel in wet compound. | Low |
| Vapours from the primer and latex/PU flooring adhesive: headaches, dizziness, irritation, sensitisation | Operatives, the householder and others in the house, especially children and anyone with asthma | Operatives trained; products used in a 3-day job. | 3×3=9 | Choose a solvent-free or low-odour product where suitable. Open windows and run extraction to the outside, and keep the area closed off from the house. Limit the amount of material opened at a time and keep containers closed. Apply the adhesive only when the room is well ventilated and agree the timing with the client. Follow COSHH 2002. Take the hazard information and the PPE specification, including any respiratory protection, from the Safety Data Sheet. | Low |
| Fire from flammable primer or adhesive vapour near ignition sources in the kitchen, such as the gas hob, boiler pilot light, electric sockets and appliances | Operatives, the householder and others in the house. Burns and smoke inhalation. | Operatives are aware of fire risks. | 2×4=8 | Check the Safety Data Sheet for flammability before work. Agree with the client that the hob and any pilot light are off and that no cooking, smoking or naked flames are used in the area while primer and adhesive are in use and drying. Ventilate the room. Keep only the quantity needed in the room and keep containers closed. Keep waste rags in a closed metal bin. Keep a dry powder or CO2 extinguisher near the exit. Note the escape route before work. Do not disconnect gas appliances yourself. | Low |
| Manual handling of 25 kg bags of levelling compound, boxes of LVT, buckets of mixed compound and the floor grinder | Operatives. Back, shoulder and arm injuries. | Operatives are manual handling trained. | 3×3=9 | Under the Manual Handling Operations Regulations 1992, avoid lifting where possible by ordering smaller bags, delivering materials close to the entrance, using a sack truck and moving materials in stages. Mix in smaller batches. Share two-person lifts for heavy items and the grinder. Keep the route clear. Take breaks. Use gloves with good grip as a back-up. | Low |
| Slips, trips and falls on wet compound, primer, loose planks, cables, hoses and the protected hallway route | Operatives, the householder and visitors. Sprains, fractures and bruising. | Good housekeeping habits. | 3×3=9 | Keep the work area closed off from the household and mark the wet areas with signs. Route cables and hoses along the walls and use cable covers or hooks. Lay floor protection flat and tape the edges down. Clear off cut planks, offcuts and packaging as the work goes on and put them in a waste sack. Keep the walkway clear. Keep the lighting adequate. Wear footwear with slip-resistant soles. | Low |
| Noise and hand-arm vibration from the floor grinder and extraction unit | Operatives. Hearing damage and hand-arm vibration syndrome. The householder is disturbed by noise. | Floor grinder with on-tool extraction; short job. | 3×3=9 | Under the Control of Noise at Work Regulations 2005 and the Control of Vibration at Work Regulations 2005, limit the grinding time, plan grinding in short periods with breaks, and rotate the operator between the two operatives. Use a well-maintained machine with the vibration value from the manufacturer's data. Agree with the client the times of noisy work. Then hearing protection to BS EN 352 and anti-vibration gloves where suitable. Report any tingling or numbness. | Low |
| Electric shock and damage from the portable grinder, extraction unit, mixer and extension leads in a kitchen with water, wet compound and live appliances | Operatives and the householder. Electric shock or burns. | Portable equipment used by trained operatives. | 2×5=10 | Under the Electricity at Work Regulations 1989, use equipment with in-date PAT labels and visually check leads and plugs each day. Plug equipment into an RCD, use 110 V where possible or an RCD adaptor. Keep leads out of wet areas and away from the compound. Do not use the equipment if it is damaged. Do not work on the household fixed wiring. Do not use the grinder over marked or suspected cables or services in the floor. Use only the sockets the client has agreed to. | Medium |
| Cuts from sharp knives and blades used to cut LVT/vinyl planks and trim | Operatives. Cuts to hands and legs. The householder and children if knives are left out. | Operatives are trained in using knives. | 3×2=6 | Use retractable or guarded safety knives, keep blades sharp and change them often, cut away from the body on a bench or protected board, and keep knives in a closed tool box when not in use. Take used blades to the waste container in a sharps box or a closed can. Then cut-resistant gloves to BS EN 388 as a back-up, where they do not make cutting less safe. | Low |
| Kneeling and awkward postures when preparing and laying the floor for long periods | Operatives. Knee, back and joint strain. | Knee pads provided. | 4×2=8 | Plan the work with rotation of tasks and short breaks, use a kneeling board or stool for long runs, use long-handled tools where possible, and share the heavier floor rolling. Then knee pads. | Low |
| Striking or damaging services, such as pipes, cables and underfloor heating, when grinding or removing the existing floor, and damage to the client's property, such as skirting, cabinets and finishes | Operatives and the householder. Flooding, electric shock, gas leak or damage to the home. | Operatives are experienced and use care. | 2×4=8 | Ask the client about services in the floor and check for them on the pre-start walk. Use the information to mark any pipes, heating or cables. Do not grind or scrape over suspected services. Only use the grinder to the depth needed. Protect cabinets, skirting and the doors with covers. If you strike a service, stop and isolate the supply if safe to do so, and call the client, and in an emergency the emergency services. | Low |
| Moving kitchen appliances, furniture and fittings before the work, and cross-contamination of the client's kitchen with dust, compound and adhesive | Operatives and the householder. Strains, damage to the gas, water or electrical supply, and contamination of food areas. | None. | 2×3=6 | Agree with the client that the appliances and furniture are cleared and the gas and electrical appliances are disconnected by the client or a competent person, not by the operatives. Cover or remove food, utensils and worktops in the area. Wash hands before and after using the client's WC and kitchen, and do not eat in the work area. Keep washing of tools to a bucket and dispose of the water as planned. Clean up each day and wipe the hallway. | Low |