CDM 2015 for Small Contractors: What You Need to Know

Yes, CDM 2015 Applies to You Too

There's a bit of folklore that goes round on site: CDM 2015 is for the big commercial jobs, the ones with a principal designer and a construction phase plan thick enough to stop a door. If you're a sole trader or a two-man outfit doing a kitchen rip-out or a day's electrical work, it doesn't touch you. That folklore is wrong, and it's worth clearing up properly, because it's the kind of thing that gets sorted out the hard way, usually in front of an HSE inspector.

The Construction (Design and Management) Regulations 2015 apply to every construction project in the UK, full stop. There's no size threshold that switches the Regulations on or off. A one-day domestic job and a multi-year infrastructure scheme sit under the same set of rules. What changes with the size and complexity of the job is which specific duties kick in, not whether CDM 2015 applies at all. A sole trader spending a single afternoon on a domestic rewire has CDM 2015 duties just as much as a contractor running a forty-person site.

For small contractors, those duties boil down to three things. Plan your work properly before you start it. Have the right documentation ready when a job or a client needs it. And cooperate with anyone else working alongside you. None of that depends on someone asking you to produce something labelled "RAMS." The duty exists because it's your job and your workers, not because of a form.

The Three Duties Every Small Contractor Actually Has

Regulation 15 of CDM 2015 requires every contractor to plan, manage, and monitor their own work. In practice that means a risk assessment before the work starts, not once it's under way and definitely not after something's gone wrong. It means a method statement for anything beyond the straightforward stuff. It means making sure your workers are competent, trained, and briefed on the hazards before they pick up a tool. None of this is optional, and none of it waits for a request.

Here's the bit that catches people out: this planning isn't something you do for the principal contractor's benefit. It's done for your own workers and anyone else who could be affected by what you're doing. If an HSE inspector turns up and asks to see your risk assessment, "nobody asked me for one" isn't a defence. It was never their job to ask. It was yours to have it ready.

Where it does get requested, though, the standard matters. When a principal contractor or client asks for your RAMS before you start on their site, they want something written for this job, not a template pulled off a shelf. The gap between a RAMS that sails through and one that bounces straight back almost always comes down to how specific it is.

If your task description reads like the bad example, expect it to come back with questions attached. If you're working alongside other trades, even on a small domestic job with two or three contractors on site at once, you've also got a duty to cooperate under CDM 2015. That means telling other trades about hazards your work creates, coordinating so you're not both trying to use the same bit of scaffold at the same time, reporting anything unsafe you spot, and following whatever site rules the principal contractor has set.

What a Principal Contractor Is Actually Checking For

When your RAMS lands on a principal contractor's desk, they're not reading it for the pleasure of it. They're checking for four specific things, and understanding what those four things are is the quickest way to stop getting RAMS sent back.

First, is it task-specific? The hazards, the controls, and the emergency procedures all need to describe this job, on this site, not a generic version that could belong to any job anywhere. Second, is there a risk rating behind it? A principal contractor wants to see your likelihood-times-severity working for each hazard, because without it there's no way to check whether your rating actually means anything. Third, do the controls follow the hierarchy properly, eliminate, reduce, isolate, control, and only then PPE? If "wear a harness" is the only control listed for working at height, a reviewer will spot in seconds that you've skipped straight past the first three steps. Fourth, is there evidence of competence? Your name, your qualification, and a date. That's what tells a reviewer a competent person actually wrote this.

The Five Reasons Small Contractors' RAMS Get Rejected

Principal contractors see the same problems on repeat. Knowing what they are means you can avoid all five before you ever submit.

The vague task description is by far the most common one, and it's also the easiest to fix. It costs you nothing to write "second-fix bathroom plumbing, including waste pipe connection under a suspended timber floor" instead of "plumbing work." The extra ten seconds of typing is the difference between a RAMS that gets approved and one that lands back in your inbox with a list of questions.

When Does a Small Contractor Need to Worry About an F10?

The F10 is the notification form sent to the Health and Safety Executive for projects that cross a specific threshold. A project needs notifying if it'll run for more than 30 working days of construction work with more than 20 workers on site at any one time, or if it'll total more than 500 person-days of construction work overall. Most domestic jobs, a kitchen renovation, a small extension, a bathroom refit, come nowhere near either number.

Responsibility for making sure the F10 gets submitted sits with the client, although on commercial jobs it's usually the principal contractor who handles the actual filing. As a small contractor, you're very unlikely to be the one submitting it. But if you're about to start work on a project that clearly does meet the thresholds, more workers, a longer programme, more person-days, it's worth asking whether the F10 has been dealt with. Starting work on a notifiable project without one is a breach of CDM 2015, and if it hasn't been submitted, that's a conversation worth having with the client before you turn up on day one, not after.

Competence: What CDM 2015 Actually Expects of You

CDM 2015 requires that everyone doing construction work is competent, or working under the supervision of someone who is. For a small contractor, that's a combination of things. It's the relevant qualification for your trade, an NVQ, a CSCS card, an ECS card, or the industry-recognised equivalent. It's the hands-on experience to apply that qualification safely on an actual job, not just the paper to say you're allowed to. And it's keeping that knowledge current, because regulations and standards move on, and RAMS written five years ago and never touched since won't reflect what's expected now.

Principal contractors check cards on site, so if you're doing electrical work, make sure your ECS card shows the grade that matches what you're actually carrying out. Being able to show your qualifications, your track record, and RAMS that reflect current practice is what competence looks like in practice, not just on paper.

What to Actually Do When a RAMS Request Lands on Your Desk

When a principal contractor asks for your RAMS before you start on their site, there's a straightforward process to follow.

Domestic Projects: Who Picks Up the CDM Duties

On domestic jobs, where the client is a homeowner rather than a business, CDM 2015 shifts the client's duties onto the contractor or principal contractor arrangements set up for that job. The core contractor duties don't go anywhere, though. You still have to plan, manage, and monitor your own work.

If more than one contractor is working on the same domestic job, get it clear early who's acting as principal contractor and who's handling the project-level CDM duties. If you're the only contractor on site, that planning responsibility, the bit that would normally sit with a principal contractor on a bigger job, lands on you. Keep it proportionate to the size of the work, and make sure whatever planning is needed is actually in place before anyone starts.

Working With a Principal Designer

On projects involving more than one contractor, the client has to appoint a principal designer, and that principal designer has duties under Regulation 11 to plan, manage, and monitor the pre-construction phase and coordinate health and safety through the design work. For a small contractor, the principal designer is the source of pre-construction information, details about the site, the existing structure, hazardous materials, and how the design's been approached.

Read that information properly. It shapes the RAMS you go on to write, and it can flag hazards that wouldn't be obvious from a site visit alone, buried services, asbestos-containing materials, structural quirks. You won't report to the principal designer directly, that's the principal contractor's job, but the information flow runs both ways. If you spot a risk during the work that could affect the health and safety file, that needs to get back to them too.

Sole Traders: The Short Version

If you're a one-person business, it's worth saying this plainly: CDM 2015 doesn't have a small-print exemption for you. You're a contractor under the Regulations, and you carry the same fundamental duties as a company with fifty staff and a health and safety department. That means a risk assessment before you start any job, a method statement for anything beyond straightforward hazards, working competently or under proper supervision, providing RAMS to any principal contractor who asks for them, and cooperating with anyone else on site.

Contractors who can show they understand these duties, and who back that up with RAMS that are actually specific to the job, tend to be the ones principal contractors want back on the next site. Good documentation isn't paperwork for its own sake. It's the evidence that the planning behind the work was real.

Write RAMS That Don't Come Back With Questions

RAMS Builder helps you turn a plain description of the job into a task-specific risk assessment and method statement, with the risk ratings, the hierarchy of controls, and the competence details a principal contractor is actually looking for. Describe the work, review what comes out, and tailor it before it goes anywhere near a submission. It won't replace your own judgement about the job, but it takes the blank page away.