When and why you need a method statement: a no-nonsense guide

You've had the email. The site office wants a method statement before you start on Monday, and nobody's told you whether that's the law, a site rule, or a client being fussy. You've got a van to load and no spare evening to spend in Word.

You can rarely say no, but the reason matters, because it changes what you write and who you write it for. Sometimes the duty comes from health and safety law. Most of the time it comes from the person paying you. Both bite, just in different ways.

No Regulation Says the Words Method Statement

This is where most advice goes wrong. One camp says you always need one. The other says you never do, because no regulation uses the phrase. HSE's own construction guidance sits closer to the second camp: while not required by law, method statements are prepared for many other construction activities. There is one clear exception, and it's worth knowing about.

What the law does require is that you plan the work, brief the people doing it, and supervise it. A method statement is the normal way to record that planning. If you haven't written the sequence down, you'll struggle to prove you planned anything, and an inspector or a principal contractor will take that as a gap.

So separate two ideas. A legal duty means the state can prosecute you for failing it. A contractual requirement means the client or principal contractor can refuse you entry, hold payment, or drop you from the tender list. Small contractors meet the second one far more often than the first, and it costs you the same lost day either way. If you need to know what the document itself contains, see our method statement guide for UK trades.

The Legal Triggers

Start with law, because it sets the floor. Everything a client asks for sits on top of it.

Health and Safety at Work Act 1974, Sections 2 and 3

Section 2(1) puts a duty on every employer to look after the health, safety and welfare of employees, so far as is reasonably practicable. Section 3(1) extends a similar duty to people who don't work for you: the client's staff, other trades, householders, anyone walking past your barrier.

Neither section names a method statement. Both use the words 'so far as is reasonably practicable', which means you have to be able to show what you thought about and what you did. On a small job with a few people and some plant, the written method is that showing.

One trap here. Section 2(3) requires a written statement of general health and safety policy where you employ five or more people. That is a company policy document. It isn't a method statement, and sending one when the site asks for the other won't get you through the gate.

MHSWR 1999 and Safe Systems of Work

Regulation 3 of the Management of Health and Safety at Work Regulations 1999 requires a 'suitable and sufficient' risk assessment. That applies to employers for the risks to their workers and to others, and to relevant self-employed people for the risks to themselves and to other people. Regulation 3(3) says you review it when it stops being valid or when there is a real change in the work.

Regulation 4 points you at the principles of prevention: avoid the risk where you can, deal with it at source, put collective protection ahead of personal protection, and give people proper instructions. Those last two are where a method statement earns its place. The risk assessment says what could hurt someone. The written method says how the work will actually run so it doesn't.

CDM 2015 Regulation 15: Your Own Work

Regulation 15(2) says a contractor must plan, manage and monitor construction work carried out by them or by workers under their control, so that it is done without risks to health and safety so far as is reasonably practicable. It doesn't say 'write a method statement'.

In practice it comes to the same place. 'Plan' means deciding the sequence before anyone picks up a tool. 'Monitor' means checking the work matches the plan. Both are much easier to evidence with a short written document that the team has been briefed on. If you're the only contractor on a project, regulation 15(5) also requires you to draw up a construction phase plan before you set up site, so some writing is unavoidable either way.

CDM 2015 Where a Principal Contractor Is Involved

Regulation 15(3) says that where more than one contractor is involved, you must comply with the directions given by the principal designer or principal contractor and with the relevant parts of the construction phase plan. Their rules become your rules, and that is a legal duty, not just a contract term.

This is the moment a site rule turns into something an inspector can act on. If the construction phase plan says task-specific method statements are required for high-risk activities and you work without one, you have breached regulation 15(3) as well as the site rules.

When the Work Is High Risk

Higher-risk work is where a written sequence stops being paperwork and becomes the only realistic way to show planning and supervision. None of these regulations asks for a document called a method statement. All of them ask for planning, competence and control that you can't demonstrate verbally.

• Working at height. Regulation 4 of the Work at Height Regulations 2005 requires height work to be properly planned, appropriately supervised and carried out safely, and regulation 5 requires the people doing it to be competent. Access, edge protection, rescue and the order of work all need setting out.
• Fragile roofs and surfaces. Where anyone could fall through, the sequence, the loading boards or platforms, and who controls access have to be agreed before anyone steps up.
• Lifting operations. LOLER 1998 expects the lift to be planned by a competent person, supervised and carried out safely. A written plan of lift is the normal way to record that, covering the load, the equipment, the exclusion zone and the slinger or signaller.
• Demolition, dismantling and structural alteration. CDM 2015 regulation 20 requires the arrangements to be recorded in writing before this work begins. This is a legal must, not a convention.
• Asbestos. Regulation 7 of the Control of Asbestos Regulations 2012 says an employer must not undertake any work with asbestos without a suitable written plan of work. That applies to licensed, notifiable non-licensed and non-licensed work alike. The plan covers the methods, equipment, decontamination steps and waste route, and has to be in place before anyone starts.
• Confined spaces. The Confined Spaces Regulations 1997 expect a safe system of work, rescue arrangements and supervision. Nobody should be talking that through from memory.
• Live or near-live electrical work. The Electricity at Work Regulations 1989 sit behind safe isolation practice: proving dead, permits to work, and who is competent to be near the board.
• Excavations. Depth, support, spoil placement, plant movements, buried services and getting in and out of the hole all change from site to site.
• Hazardous dust. COSHH 2002 as amended covers respirable crystalline silica and similar dusts, where extraction, on-tool controls and RPE need a defined order of use.

Three examples of where this lands for a small contractor. A solo roofer on a fragile roof needs the access route, the board layout and the rescue plan written down, even with nobody to ask for it. A groundworker in a deep trench needs the battering or shoring sequence, the spoil rule and the service clearance recorded before the digger starts. An electrician working near a live board needs the isolation and proving sequence agreed with whoever controls the supply.

What Clients and Principal Contractors Actually Ask For

Most small contractors meet the requirement here rather than through an inspector. These requests are enforceable through contract, and they arrive with a deadline attached.

Site Rules and Inductions

On a managed site, the induction is where the requirement shows up. You may be asked to submit a task-specific method statement for approval before the permit is issued, to sign to say your workers have been briefed on it, and to resubmit if the sequence changes. Ask at tender or pre-start stage rather than on the morning, because a site office that has to review a document won't usually let you work while it waits.

Pre-Qualification Schemes and Tenders

Pre-qualification assessors look for evidence that you plan work rather than improvise it. Alongside insurance, training records and your health and safety policy, they typically want to see risk assessments and example method statements for the kind of work you do. Main contractors ask for the same at tender. If you can't produce a sample, you can come off the list before anybody looks at your price.

Insurers and Claims

Insurers commonly ask for evidence of a safe system of work when a claim is made, and solicitors ask for the same afterwards. If the only record is that the team had always done it that way, you have nothing to put in front of them. A dated method statement with a briefing sheet signed by the people on the tools is a much stronger position, and it can also show that the cause sat with somebody else.

Do You Need One for Domestic Work?

Homeowners rarely ask by name, and that leads a lot of trades to think domestic work sits outside the rules. It doesn't. The duties follow the work, not the client's tax status.

Single Contractor Domestic Projects

If you're the only contractor on a domestic job, the client duties transfer to you under CDM 2015 regulation 7, and regulation 15 still requires you to plan, manage and monitor your own work. Regulation 15(5) also means you draw up the construction phase plan. Nobody is going to ask you for a formal document by name, and a health and safety file is only required where more than one contractor is involved, so a single-contractor domestic project doesn't need one.

A short written method still protects you. It records what you agreed with the homeowner about access, dust, children and pets, existing services, and how the work will run. If a dispute or an injury comes up later, that is the piece of paper that shows what you planned. See our guide to RAMS requirements for domestic work for what that looks like in practice.

More Than One Contractor

As soon as a second contractor is involved, even on a house extension, a principal designer and a principal contractor should be appointed and a health and safety file is required. You then work to their construction phase plan and their site requirements, and they will almost certainly ask for your method statement before you start. Treat it like a commercial job, because that is what it has become.

A Decision Flow for Small Contractors

Run this in the van rather than in the office. If any branch matches, the answer is write it before you start.

Use this to decide, not to write. Once you know a document is needed and what it has to cover, the drafting side is explained in how to write RAMS for construction work.

When You Need to Update or Rewrite It

The other half of the question isn't whether you need one, but whether the one you have is still any use. Reusing a template unchanged is the most common failure we see, and it's worse than having nothing, because it looks like a plan that nobody followed. Write a new one or properly revise the old one when any of these happen.

• A new task, or the same task done in a different order.
• A new site, with different access, ground, services, neighbours and other trades.
• New people, including subcontractors, agency labour or an apprentice working alongside you.
• New plant or equipment, especially anything that changes the lifting or access plan.
• An incident, a near miss, or a direction from an inspector or the principal contractor.
• A change in site conditions, such as weather damage, an unsupported face, or material you did not expect to find.
• A change in guidance or in the controls you rely on.
• Your own review date passing without a check.