Welfare Facilities on Site: Hot Water and What the Law Expects

Every construction site needs proper welfare facilities, and hot or warm running water is not optional. Under CDM 2015, you must provide clean hot and cold (or warm) running water, soap and a way to dry hands, right next to the site toilet. This applies whether you are a one-man band fitting a kitchen or a small firm running a domestic build. Get it wrong and the HSE can serve an improvement or prohibition notice — as one contractor recently found out.

What does the law say about welfare facilities?

Schedule 2 of the Construction (Design and Management) Regulations 2015 (CDM 2015) lists the welfare facilities that should be in place at any site. That means welfare is a legal duty, not a nice-to-have you sort out later in the job.

The HSE is clear that welfare facilities are not just about comfort. They are a control measure in their own right. They help protect workers against the risks from hazardous substances such as cement, lead or micro-organisms. If a bricklayer can't wash cement off their hands and forearms, they are more likely to end up with dermatitis or cement burns. So the tap and the soap are doing a real safety job.

The HSE also points out that the type and number of facilities you need depends on the size and type of work. A quick half-day repair is not the same as a six-week extension. You may need additional facilities, such as showers, to control the risks from hazardous substances like cement, lead or micro-organisms. And remember that separate facilities may be needed for men and women.

Why is hot water on site such a big deal?

Hot water is one of the specific things enforcement officers check, because it is easy to skip and easy to prove missing. A recent HSE notice served against a contractor on a domestic building job spelled it out plainly:

"You have failed to provide adequate welfare facilities, such as clean hot and cold, or warm, water (which must be running water so far as is reasonably practicable) soap, and hand drying facilities, in the immediate vicinity of the site toilet."

Read that carefully. Three things are named together:

• Running water — hot and cold, or warm, so far as is reasonably practicable

• Soap

• Hand drying facilities

And they all need to be in the immediate vicinity of the site toilet. A tap round the back of the building, or a bottle of hand gel in the van, does not tick this box. Neither does a cold outside tap on its own if it is reasonably practicable to provide warm water.

The same notice was served on a domestic building job (CONSTRUCTION DOMESTIC BLDGS), which matters — plenty of sole traders assume welfare rules only bite on big commercial sites. They don't.

How do I provide hot water on a small site?

You don't need a full welfare cabin for a two-week job. What you need is something that actually delivers warm running water, soap and hand drying next to the toilet. Practical options for small firms:

1. Mains-fed welfare unit or towable welfare trailer. For a domestic extension or a small commercial fit-out lasting a few weeks, a towable welfare unit with an integrated water heater is the cleanest answer. It gives you a toilet, warm water, soap and hand drying in one place.

1. Portable water heater or urn. On a kitchen refit or a short roofing job, a plumbed or battery/gas-powered hand-wash station with a small heater can be enough, positioned right next to the WC.

1. Use the house — with agreement. On domestic jobs where the client still lives in, you can often arrange to use an existing bathroom for washing. Get it agreed in writing before you start so it doesn't fall through halfway.

The HSE reminds clients they should co-operate with contractors and help them in situations where providing welfare facilities are difficult. On a domestic job that usually means agreeing water and toilet access up front. If you are the principal contractor, don't leave it to chance — pin it down at the quoting stage.

Before you start, consider the positioning of your facilities. For fixed sites, the HSE says to think about whether they will have to be moved during the project, and access for cleaning and maintenance. A welfare unit parked where the scaffold is going up next week helps nobody.

Do the same rules apply to a one-day job?

The duty to provide welfare doesn't switch off because the job is short. What changes is what is reasonably practicable. For a genuine quick call-out, warm water might come from a portable hand-wash station rather than a plumbed cabin. The point is you still have to think it through and provide something adequate — clean water, soap and hand drying near the toilet.

A worked example: an electrician doing a two-day rewire in an occupied house can usually agree use of the bathroom with the homeowner. A groundworker digging footings on an empty plot with no services on site cannot — so a towable welfare unit or hand-wash station is the realistic option. Same regulation, different practical answer.

The safest approach is to decide welfare before you turn up, not when the HSE inspector does. Write it into your planning documents so everyone knows what is provided and where. Welfare arrangements sit naturally in your construction phase plan and your risk assessments. If you are pulling those together, The Site Book's construction phase plan tool prompts you to record welfare provision so it doesn't get forgotten, and the RAMS features let you link welfare to the specific health risks on your job.

How does welfare tie into cement, lead and dust risks?

This is where hot water earns its keep. Welfare facilities form an important control measure in their own right. They help protect workers against the risks from hazardous substances such as cement, lead or micro-organisms.

Think about the trades this touches:

• Bricklayers and groundworkers handling wet cement and mortar — washing off promptly reduces the chance of cement burns and dermatitis.

• Painters and refurb crews stripping old paint that may contain lead — hand washing before eating or smoking matters.

• Anyone in dusty conditions — clean water and washing facilities are part of keeping harmful dust off skin and out of mouths.

Where the substance risk is high, the HSE notes you may need additional facilities such as showers. That is exactly the kind of judgement that belongs in your risk assessment and COSHH paperwork — identify the substance, then specify the welfare that controls it. A free RAMS generator can help you spell out those control measures quickly so your welfare provision matches the actual risks on your job rather than being an afterthought.

Getting it right without the paperwork headache

The practical checklist for welfare on a small site:

• Toilet on or next to site

• Clean hot and cold, or warm, running water in the immediate vicinity of that toilet

• Soap

• Hand drying (paper towels, or a working drier)

• Separate facilities for men and women where needed

• Showers where cement, lead or micro-organisms make them necessary

• Facilities positioned so they stay usable, clean and maintainable through the job

None of this is complicated, but it does need deciding and documenting before you break ground. Recording your welfare arrangements in your CPP and RAMS shows you have thought it through — which is exactly what an inspector wants to see. If you want to speed that up across your jobs, look at The Site Book's plans and pricing.

This article is general guidance based on published HSE material and does not replace professional health and safety advice for your specific site.