CDM 2015 Compliance Guide

Construction site welfare facilities

Every principal contractor has a legal duty to provide welfare facilities from day one of the construction phase. It is not optional, and it does not depend on project size.

Schedule 2 of the Construction (Design and Management) Regulations 2015 sets out exactly what is required, and who is responsible for providing it. A site without proper welfare provision is a site with a compliance gap.

What CDM 2015 requires

Schedule 2 of CDM 2015 specifies five categories of welfare provision that must be available at every construction site, regardless of size or duration. The HSE’s welfare overview summarises each one.

Two toilets

Sanitary conveniences with adequate ventilation and lighting, kept clean. Separate facilities for men and women where reasonably practicable. Numbers depend on workforce size and duration.

Hire our toilet and showers

Basins large enough to wash face, hands and forearms. Clean hot and cold running water, soap and a means of drying. Showers where work involves cement, lead or other hazardous substances.

WATER BOWSER

An adequate and readily accessible supply of drinking water, clearly marked where there is any risk of confusion with non-potable water.

A compact Eco Cabin+ 24 featuring blue and white walls, a partially open door, and minimal modern decor.

Suitable changing rooms where workers must change into special work clothing, plus secure storage for personal clothing. HSE guidance sets out what ‘suitable’ means in practice.

A blue Shelter 10 with benches stands on a paved area, with trees and buildings in the background.

A sheltered rest area with seating, tables and the means to heat food and drinks, arranged so non-smokers are not exposed to tobacco smoke or contamination.

The HSE’s CIS59 information sheet provides practical detail on minimum provision for different site types.

Who is responsible for site welfare?

CDM 2015 distributes welfare responsibility across three duty-holder roles. Getting the right person to act is as important as the provision itself.
Clients
Commercial clients must ensure that principal contractors, or contractors on smaller sites, have appropriate welfare arrangements in place. This applies to all construction work regardless of scale. It is not enough to assume the contractor will sort it.
Principal contractors
On notifiable projects, the principal contractor carries primary operational responsibility. Suitable welfare must be in place from the start of the construction phase and maintained throughout, or they are in breach of CDM 2015.
Contractors
All contractors must provide welfare for the workers under their control. On smaller projects where no principal contractor is appointed, the contractor takes on the full welfare duty directly.
HSE inspectors can issue improvement notices, prohibition notices or pursue prosecution where welfare provision is inadequate. Welfare is one of the first things inspectors check.

Types of welfare facilities

Construction sites vary enormously in duration, workforce size, location and available power. No single unit suits every situation. There are three main types of welfare facility.
Large dark blue portable restroom unit labeled “Garic,” placed outdoors on a tiled surface under a structure.
For long-term fixed sites: infrastructure, rail, major road schemes and utilities. Combines toilet, changing, drying, canteen and kitchen in one unit. No external service connections required, and units can be combined for larger teams.
A white Armadillo 12 portable site cabin trailer is parked on cracked concrete, with trees and clouds in the background.
For transient works where welfare moves with the job: utility repairs, highway maintenance and multi-location programmes. Towed behind a vehicle and set up quickly. The Armadillo range covers teams of six to ten, in diesel and eco variants.
A Welfare Van Eco+ in white and green is parked by a grassy area near a river.
For short-duration roadside operations where a full cabin is not practical. A welfare van provides CDM-compliant toilet, wash and canteen facilities for up to seven operatives. Self-contained and road-legal, ideal for chapter 8 highway operations.

Choosing the right welfare for your site

The right setup depends on a combination of factors. Work through each one before you specify.
01
Workforce size & shift patterns
The number of operatives at peak, and whether they work overlapping shifts, determines how many facilities you need. CDM 2015 sets no single operative-to-toilet ratio, but provision must be adequate for the numbers.
02
Site duration
Short-duration works are typically served by mobile or van-based units. For projects running several months or longer, a static cabin on a hire-and-service arrangement is usually more practical and cost-effective.
03
Site type & location
A city-centre redevelopment has different constraints to a remote rural project. Workers should not have to make an unreasonably long journey to reach welfare, so larger sites may need satellite provision rather than a single compound.
04
Power source
Diesel generators are standard, but solar, hybrid and microgrid options are now practical. If your project has a net-zero commitment or carbon reporting obligations, the power source contributes to your overall site carbon figure.

Accreditations and Certifications

Garic has been supplying sustainable site solutions across the UK since 1988. The business holds CHAS Accredited Contractor status and is a member of the Considerate Constructors Scheme. Quality and environmental management systems are certified to ISO 9001 and ISO 14001, independently assessed by the British Assessment Bureau to UKAS standards. Garic is also a RoSPA member.
CHAS Accredited Contractor logo for Contractors Health & Safety Assessment Scheme with website link.
Purple text Considerate Constructors circles a green check mark on a white background.
British Assessment Bureau and UKAS ISO 9001 Quality Management logo with Bury text.
British Assessment Bureau and UKAS logos, ISO 14001 Environmental Management, Bury, certification badge.
ROSPA Member logo with colorful circular design in the letter O on a dark blue background.

Eco & low-emission welfare options

Welfare facilities run for hours every day on sites that can last months, making the energy source a meaningful variable in your total emissions. Garic's eco range reduces generator runtime and fuel consumption without compromising the CDM standard.
A dark grey Eco Cabin+ 24 portable site cabin by Garic sits on a paved outdoor area with blurred trees and a building in the background.
Microgrid technology, two private WCs with separate male/female facilities, CDM-lockable changing area, capacity for 10.
Large dark blue portable restroom unit labeled “Garic,” placed outdoors on a tiled surface under a structure.
Refurbished unit built on circular-economy principles, microgrid powered, with separate male and female WCs.
The 2+1+Dryer 24 Eco portable toilet and shower unit in dark blue is set up on a paved outdoor area under a cloudy sky.
1,200W of solar panels with PIR-controlled LED lighting and a built-in drying room, designed for teams of up to 20.
An Armadillo 18 Eco+ mobile office trailer with Garic branding on an empty paved area.
Mobile unit with rainwater harvesting to reduce water consumption on longer-duration transient works.
A Welfare Van Eco+ in white and green is parked by a grassy area near a river.
Solar panels and smart battery as primary power, with premium telematics on the Eco+ for fuel-efficiency monitoring.
Case Study — Siemens Energy
Green welfare for the Moray East Wind Farm connection
Siemens Energy needed welfare provision that matched their green credentials. Garic supplied the Combi Cabin 24 Eco.
76%
fewer generator run hours
£3,500
in fuel savings
4,671kg
CO₂ reduction

Construction Site Welfare Facilities From Garic

Garic supplies static and mobile construction site welfare facilities to contractors, principal contractors and clients across construction, infrastructure, rail, utilities and the public sector. The range covers compact single-unit solutions for small teams through to multi-unit configurations for large-scale sites.
Large dark blue portable restroom unit labeled “Garic,” placed outdoors on a tiled surface under a structure.
From the Combi Junior 15 (four people) up to the Combi Cabin 48 (24 people). Diesel, solar, hybrid and microgrid options. All self-contained, no mains connections required.
Hire our mobile welfare unit
The Armadillo towable fleet (6 to 10 people, diesel and eco variants) and three Welfare Van models (7 people), including the solar-hybrid Eco and the premium-spec Eco+.
Large black Garic lorry parked in a car park with barrels and fencing in the background.
UK mainland cover from depots in Bury, Falkirk, Sandy, Dudley and Reading. Short and long-term hire, plus tanker servicing, fuel and water-tank supply. One supplier across the whole setup.
Frequently Asked Questions

Plan your welfare from day one

CDM 2015 is explicit: welfare must be in place from the start of the construction phase. That means planning welfare at the same time as the rest of your site layout, not treating it as something to sort out once other logistics are confirmed.

The HSE is clear that the positioning of facilities needs to be considered before work starts. For fixed sites, you need to account for future moves as the project progresses, access for tanker servicing, distance from the furthest parts of the site, and whether any workers in remote areas need satellite provision.

Garic’s site design solutions take this on from the planning stage. When you get in touch with us, our site design team will advise on the best solution for your project before it’s started.

Garic are a provider of industry leading site welfare equipment
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