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Painting · Canada

FLHA for pressure washing

By SiteSortedBuilt from provincial OHS law and CCOHS guidance · How we write and check theseUpdated

Provincial OHS law requires hazards to be assessed and controlled before work starts. A field level hazard assessment (FLHA) for pressure washing is done on site at the start of the shift and again whenever conditions change.

It lists the tasks, hazards and controls, and every worker signs on before starting and signs off at the end of the shift. The main hazards are electric shock from live wiring, disturbing asbestos, electric shock from cords and power tools and lead paint dust and fumes.

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FLHA example: pressure washing

This is a complete FLHA for pressure washing, with 6 job steps. Open it in the builder to add your site, crew and signatures, change anything, and download a PDF. Or download the free Word template below and fill it in by hand.

Field Level Hazard Assessment (FLHA)
Pressure washing and surface prep · Painting · Example
Document FLHA-001 · Rev 1

Job steps, hazards and controls

#Job stepHazardsRisk beforeControlsRisk after
1Cover power points and outside lights, and keep leads off wet ground
  • Electric shock from cords and power tools
  • Electric shock from live wiring
Critical
  • Use battery-powered tools where you can. Substitution
  • Use GFCI protection on all temporary power and portable tools. Engineering
  • Keep cords off the ground and out of water, using stands or hooks. Engineering
  • Check cords, plugs and tools before every use. Tag out and remove anything damaged. Administrative
  • Do not use tools in rain or wet areas unless they are rated for it. Administrative
  • Wear safety boots and dry gloves. PPE
  • Isolate the power before any work. Do not work live. Elimination
  • Lock out and tag the isolation point with your own personal lock and danger tag. Engineering (guarding)
  • Test before you touch: prove dead at the point of work with a tested voltage tester. Engineering
  • Only licensed electricians do electrical work, to the Canadian Electrical Code and provincial rules. Administrative
  • Check for back feeds from solar, batteries and generators that can keep a circuit live after the main switch is off. Administrative
  • If energized work cannot be avoided, use a permit, a safety observer and insulated tools, following CSA Z462. Administrative
  • Wear insulated gloves, arc-rated clothing and a face shield when testing or working near live parts. PPE
Medium
2Check surfaces for asbestos and lead paint first
  • Disturbing asbestos
  • Lead paint dust and fumes
Critical
  • Get an asbestos survey before work on buildings built before 1990. Elimination
  • Seal off the work area and keep everyone else out. Engineering (guarding)
  • If asbestos must be disturbed, keep it wet, use hand tools not power tools, and clean up with a HEPA vacuum. Engineering
  • Follow your province's asbestos rules, including notification and trained or certified workers where required. Administrative
  • In BC, a qualified person must inspect and write a hazardous materials report before demolition or renovation, and asbestos abatement must be done by a WorkSafeBC licensed contractor (since 1 January 2024). Administrative
  • Stop work straight away if you find suspect asbestos. Do not touch it and tell your supervisor. Administrative
  • Wear a fit-tested respirator suited to the work, and disposable coveralls. PPE
  • Test old paint for lead before you sand, scrape, cut or heat it. Elimination
  • Use wet scraping, chemical strippers or shrouded tools with extraction instead of dry sanding. Never burn off lead paint with an open flame. Substitution
  • Seal off the work area with plastic sheeting and keep residents, children and pets out. Engineering (guarding)
  • Clean up with a HEPA vacuum and wet wipes. Never dry sweep. Engineering
  • Wash hands and face before eating, drinking or smoking. Change out of dusty clothes before going home. Administrative
  • Wear a fit-tested respirator with P100 filters, disposable coveralls and gloves. PPE
Medium
3Never use the pressure washer from a ladder
  • Falling from a ladder
  • High pressure water jetting
High
  • Use a platform ladder, mobile scaffold or aerial work platform for longer jobs instead of a straight ladder. Substitution
  • Use CSA Grade 1, 1A or 1AA ladders in good condition. Remove any damaged ladder from site. Engineering
  • Set extension ladders at a 4 to 1 angle on firm, level ground, tied or footed, and reaching 1 metre above the landing. Engineering
  • Use ladders only for short, light work. Do not carry heavy or awkward loads up a ladder. Administrative
  • Keep three points of contact and your belt buckle between the side rails. Do not overreach. Administrative
  • Do not stand on the top three rungs of an extension ladder or the top step of a stepladder. Administrative
  • Check the ladder before each use: feet, rungs, side rails and locks. Administrative
  • Wear non-slip safety boots with clean soles. PPE
  • Set an exclusion zone around the jetting area. Engineering (guarding)
  • Use a dead man's trigger that stops the jet when released, and check hoses and fittings before use. Engineering
  • Only trained operators use high pressure jetting gear. Administrative
  • Never point the lance at anyone or put a hand in front of it. Administrative
  • Treat any jetting injury as serious and go to hospital, even if it looks small. Administrative
  • Wear a face shield, waterproof clothing, gloves, hearing protection and safety boots. PPE
Medium
4Mix and apply cleaning chemicals as the label says
  • Hazardous chemicals
Medium
  • Choose the least harmful product that does the job, for example water-based instead of solvent-based. Substitution
  • Use chemicals in well-ventilated areas, or use fans and extraction in closed rooms. Engineering
  • Read the Safety Data Sheet (SDS) and WHMIS labels before use. Workers have WHMIS training. Administrative
  • Keep chemicals in labelled containers. Never decant into drink bottles. Administrative
  • Store chemicals away from heat, food and drink, and keep products that react with each other apart. Administrative
  • Have eye wash and a spill kit nearby, and wash hands before eating. Administrative
  • Wear chemical-resistant gloves and safety glasses or goggles as listed on the SDS. PPE
  • Use a respirator with the right cartridge if the SDS calls for one. PPE
Medium
5Wash down, keeping the lance away from people
  • High pressure water jetting
  • Loud noise
  • Slips and trips
High
  • High pressure water jetting: see step 3 for the full controls Administrative
  • Use quieter tools and methods, such as cut-to-size materials, low-noise machines and battery tools. Substitution
  • Keep noisy equipment away from work areas, and use screens or distance between the noise and people. Engineering (guarding)
  • Keep tools maintained and use mufflers on compressors and generators. Engineering
  • Limit time on noisy tools and rotate workers. Administrative
  • If you have to shout to be heard 1 metre away, wear hearing protection. Administrative
  • Plan walkways and keep them clear of materials, hoses and leads. Elimination
  • Run leads and hoses overhead on hooks or stands, or along walls, not across walkways. Engineering
  • Fill or cover holes, and lay boards or mats on muddy access paths. Engineering
  • Clean up offcuts, packaging and spills as you go, not at the end of the day. Administrative
  • Keep work areas, stairs and access paths well lit. Administrative
Medium
6Stop runoff entering storm drain drains and clean up
  • Poor housekeeping and waste
Medium
  • Order materials to size and send packaging back where you can. Elimination
  • Put waste bins and chutes close to the work. Engineering
  • Clean as you go, and do a full clean up at the end of each day. Administrative
  • Keep exits, stairs and walkways clear at all times. Administrative
  • Stack materials neatly on level ground, away from edges. Administrative
  • Wear gloves when handling waste. PPE
Low

PPE

CSA green triangle safety boots (CSA Z195)Safety gogglesChemical-resistant glovesHearing protectionWork glovesRespirator fit tested to CSA Z94.4 (P100 for dust, or the type the air test calls for)CoverallsHard hat (CSA Z94.1)Face shield

Plant and equipment

Pressure washerExtension ladderPortable generator

Emergency

Call 911. Add the nearest hospital, the muster point and the first aid attendant for your site.

Sign-off

Supervisor and every worker sign to confirm they have read and understood this FLHA, then sign off at the end of the shift.

Free FLHA template for pressure washing

Word (.docx) and PDF, Letter landscape, no email needed. Fill in your site details, then print or send it.

Word template (.docx)PDF template

Make yours in 2 minutes

Same document, filled in for your job. Answer a few yes or no questions, the crew signs on the phone, and you send the PDF.

Start this FLHA

Pre-start checklist for pressure washing

Tick these off before work starts. They come from the hazards, permits and equipment in this job.

The safe sequence of work

  1. Cover power points and outside lights, and keep leads off wet ground
  2. Check surfaces for asbestos and lead paint first
  3. Never use the pressure washer from a ladder
  4. Mix and apply cleaning chemicals as the label says
  5. Wash down, keeping the lance away from people
  6. Stop runoff entering storm drain drains and clean up

Hazards to watch on pressure washing

The hazards most specific to this job, and the step where each one comes up.

Step 3, 5High pressure water jettingHigh pressure water cuts through skin and injects water and dirt into the body, or the hose whips.
Step 2Lead paint dust and fumesPaint from before 1960 almost always contains lead, and paint up to 1990 may. Sanding, scraping or heating it releases dust or fumes that poison workers and families, especially children.
Step 1Electric shock from cords and power toolsDamaged cords, plugs or tools, or water near power, give the user an electric shock.
Step 2Disturbing asbestosBuildings built before 1990 may contain asbestos. Drilling, cutting or breaking it releases fibres that cause cancer years later.
Step 4Hazardous chemicalsGlues, sealants, solvents, acids, cleaners and cement burn skin and eyes or cause breathing problems and poisoning.
Step 3Falling from a ladderThe ladder slips or tips, or the worker overreaches, and they fall onto a hard surface.
Almost certainLikelyPossibleUnlikelyRareHow bad it could be: First aid only to FatalityBA
Highest risk on pressure washing: Critical before controls (B), down to Medium after controls (A), on the Canada 5 by 5 risk matrix (possible and fatality becomes unlikely and serious injury).

What changes on your site

This example covers the job itself. Your site may add more. Add controls for any of these that apply (the builder asks you these as yes or no questions):

  • Could anyone fall 3 metres or more, or fall any distance into machinery, water, a hazardous substance or through an opening?
  • Will anyone work on a roof?
  • Is there a fragile roof, skylight or clear roof sheet?
  • Will you use a scaffold or mobile tower?
  • Will you use an aerial work platform (scissor lift or boom lift)?

Why FLHAs get rejected

Prime contractors and COR auditors send documents back for these reasons. This example avoids them, but check yours too.

  • End of shift boxes already say "None" when the form was signed at the start of the shift.
  • One FLHA reused for days or weeks, or a "review by" date a month away, when the work and conditions change daily.
  • No time of assessment and no record of any revision, which Alberta s.7(3) requires.
  • Workers signed that they "read" it, but nothing shows they took part, which Alberta s.8(1) requires.
  • Work at height with no fall protection plan where the province requires one, or no written rescue procedure for workers using fall arrest.
  • Permits or locates required on site but no permit or ticket numbers recorded.
  • No re-assessment entry after an obvious change such as weather, a new task or a new crew member.

Rules by province for pressure washing

Province or territoryKey local ruleRegulator
OntarioFall protection (O. Reg. 213/91 s.26) applies at a fall of more than 3 m, more than 1.2 m where the work area is used as a path for a wheelbarrow or similar equipment, and at any height into operating machinery, water or other liquid, a hazardous substance, or through an opening.Ontario Ministry of Labour, Immigration, Training and Skills Development
British ColumbiaFall protection is required where a fall of 3 m or more may occur (s.11.2). A written fall protection plan is required at 7.5 m or more where there are no permanent guardrails (s.11.3).WorkSafeBC
AlbertaA hazard assessment must be done before work begins, and before a new work site is built (OHS Code s.7(1)). The results must be written down with the controls (s.7(2)).Alberta Occupational Health and Safety
QuebecGuardrails (Safety Code s.2.9.1, as amended by Decret 63-2025) are needed where a worker could fall into liquid or a hazardous substance, onto moving parts or dangerous equipment, 1.2 m or more when using a vehicle, 1.5 m or more when handling a load, and more than 3 m in all other cases.CNESST (Commission des normes, de l'equite, de la sante et de la securite du travail)
ManitobaA prime contractor is required whenever more than one employer or self employed person works on the site at the same time (Act s.7).Manitoba Workplace Safety and Health Branch
SaskatchewanAn occupational health committee is required at 10 or more workers of one employer (Act s.3-22).Saskatchewan Ministry of Labour Relations and Workplace Safety, OHS Division
Nova ScotiaWorkers must be trained in fall protection before using it or working in, supervising or planning work in a fall protection area, with a refresher at least every 3 years (WHSR s.21.19).Nova Scotia Department of Labour, Skills and Immigration, Safety Branch (OHS)
New BrunswickFall protection is needed from 3 m above water or the nearest permanent safe level (Reg 91-191 s.49(1)(a)(i)).WorkSafeNB
Newfoundland and LabradorGive written notice to the minister before starting a construction project that will last 30 days or more, with the site, location, type of work and number of workers (Regs s.8).Government Services, Occupational Health and Safety Division
Prince Edward IslandFall protection is needed from 3 m above the nearest safe surface or water (Fall Protection Regulations s.2(1)(a)).Workers Compensation Board of PEI, OHS Division
YukonEvery employer must do hazard assessments with the committee, representative or workers, and redo them after significant changes or incidents (Regs s.1.03.01).Yukon Workers' Safety and Compensation Board
Northwest TerritoriesFall protection is needed from 3 m, or lower if there is a risk of injury (s.119(1)). Guardrails are needed for falls of 1.2 m to 3 m at permanent work sites (s.119(2)).Workers' Safety and Compensation Commission (WSCC)
NunavutNo 911. To reach the RCMP in an emergency, dial your community's first three digits then 1111 (Iqaluit: 979-1111). Put the local fire, ambulance and RCMP numbers on every FLHA.Workers' Safety and Compensation Commission (WSCC)

Questions

Do I need an FLHA for pressure washing?

Provincial OHS law requires hazards to be assessed and controlled before work starts. A field level hazard assessment (FLHA) for pressure washing is done on site at the start of the shift and again whenever conditions change.

Who signs the FLHA?

The supervisor and every worker take part in the assessment and sign on before work starts, then sign off at the end of the shift. Review it and re-sign whenever the task or conditions change.

How long do I keep it?

Keep completed hazard assessments for at least 3 years (COR auditors sample the last 12 months). Review this FLHA and re-sign whenever the task, crew or conditions change.

What PPE is needed for pressure washing?

Usually CSA green triangle safety boots (CSA Z195), Safety goggles, Chemical-resistant gloves, Hearing protection, Work gloves, Respirator fit tested to CSA Z94.4 (P100 for dust, or the type the air test calls for), Coveralls, Hard hat (CSA Z94.1), Face shield. The site rules may add more, so check with the general contractor.

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Blank FLHA template: free FLHA templates. Also for other countries: Australia (SWMS) · United Kingdom (RAMS) · United States (JHA)

Sources