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Confined Space Training

Confined Space Training Courses

Confined Space Training

Updated: 4th November 2026

Confined Space Training from Heightsafe prepares your team for some of the most hazardous work in industry. Confined spaces pose unique and serious risks: toxic or flammable atmospheres, restricted movement, limited access, poor ventilation or zero visibility.

Without proper training, personnel can be exposed to danger including asphyxiation, engulfment, falls, or inability to self-rescue. Our courses ensure your team knows how to assess hazards, use the right equipment, work safely and respond effectively in emergencies.

We deliver every course at Heightsafe’s premises or on-site at your own premises, from low risk entry through to high risk work and specialist rescue cover, so your people train for the spaces they actually work in.

Why Confined Space Training Is Important

What Is a Confined Space?

Under the Confined Spaces Regulations 1997, a confined space is any place that is substantially enclosed, though not always entirely, where there is a reasonably foreseeable risk of serious injury from hazardous substances or conditions.

Examples include tanks, silos, sewers, manholes, chambers, pits, vats, ducts and poorly ventilated rooms. Unlike open environments, these spaces are often difficult to access and unpredictable. Workers face unique dangers such as:

  • Toxic or Flammable Atmospheres – Exposure to harmful gases or vapours can quickly lead to unconsciousness or fire risk.
  • Oxygen Deficiency – Even a small reduction in oxygen levels can cause confusion, dizziness and life-threatening situations within minutes.
  • Restricted Access – Narrow entry and exit points make it difficult to evacuate or rescue an injured worker.
  • Engulfment Hazards – Loose materials such as grain, sand or liquids can trap or suffocate workers.
  • Poor Visibility and Communication – Limited lighting and noise can reduce awareness and increase errors.

Without proper training, employees may not recognise these risks until it’s too late. A poorly planned entry, an incorrect choice of equipment or a delayed response to an incident can result in serious injury or fatalities.

Industries That Benefit from Confined Space Training

This training is especially relevant for organisations operating in environments where confined spaces are part of routine work, including:

  • Water treatment and sewage works
  • Chemical and petrochemical plants
  • Oil and gas extraction and processing
  • Utilities (gas, electricity)
  • Underground works and tunnels
  • HVAC and plant servicing
  • Manufacturing and process industries

How Your Organisation Gains

  • Reduced risk of serious accidents, injury or fatality in confined spaces
  • Improved ability to manage emergencies and rescue situations safely
  • Meeting legal and regulatory obligations for confined space work
  • Increased confidence among staff and an improved safety culture
  • Reduced downtime, liability and costs from incidents or non-compliance

Why Choose Heightsafe for Confined Space Training?

Heightsafe Systems has built its reputation as one of the UK’s leading providers of height and confined space safety solutions by combining practical knowledge, accredited training and a commitment to keeping people safe.

  • Proven Track Record – With over a decade in business and 50+ years of combined industry experience, our trainers understand confined space challenges first-hand.
  • Real-World Expertise – We don’t just teach safety; our teams regularly carry out inspections, equipment installations and rescue planning, so our training is grounded in real-life practice.
  • Fully Accredited Training – All courses are aligned with UK legislation and industry standards, helping your organisation stay compliant and audit-ready.
  • Hands-On Learning – Delegates train with the same equipment and scenarios they’ll encounter in the field, making the knowledge immediately practical and actionable.

Book your Confined Space Training today and take a proactive step towards safer, more resilient operations. You can view our company accreditations here.

Our Confined Space Training Courses

Low Risk Confined Space Training

Heightsafe’s specialist Low Risk Confined Space Training course is designed for personnel who require access to low risk confined spaces. It’s ideal for those needing to understand legislation, safe working practices and safety requirements for spaces up to 3 metres deep, accessible via a Fixed Access Ladder.

Aims and Objectives

  • Current legislation
  • Definitions of confined spaces
  • Examples and categories of confined spaces
  • Communication and emergencies
  • Watchman duties
  • Safe systems of work
  • Personal Protective Equipment (PPE)
  • PPE maintenance and inspection
  • Risk Assessment and Method Statements
  • Vertical entry via Fixed Access Ladders
  • Practical use of a tripod/frame/davit winch
  • Gas detector usage

Course Information

  • Duration: one day
  • Trainer to student ratio: 1 to 8
  • Certification: certification awarded upon completion
Medium Risk Confined Space Training

Heightsafe’s specialist Medium Risk Confined Space Training course is designed for personnel who require access to medium risk confined spaces. It’s ideal for those needing practical use of breathing apparatus in an escape scenario, building on the core skills of the low risk course.

Aims and Objectives

  • Current legislation
  • Definitions of confined spaces
  • Examples and categories of confined spaces
  • Communication and emergencies
  • Watchman duties
  • Safe systems of work
  • Personal Protective Equipment (PPE)
  • PPE maintenance and inspection
  • Risk Assessment and Method Statements
  • Vertical entry via Fixed Access Ladders
  • Practical use of a tripod/frame/davit winch
  • Gas detector usage
  • Practical use of breathing apparatus

Please note that personnel will be required to work detached and at a distance from Personal Fall Protection.

Course Information

  • Duration: two days
  • Trainer to student ratio: 1 to 6
  • Certification: certification awarded upon completion
High Risk Confined Space Training

Heightsafe’s specialist High Risk Confined Space Training course is designed for personnel who require access to high risk confined spaces. It’s ideal for those who require non-standard access to spaces with complex operations that introduce additional risk and require specific control measures and rescue arrangements.

Aims and Objectives

  • Current legislation
  • Definitions of confined spaces
  • Examples and categories of confined spaces
  • Communication and emergencies
  • Watchman duties
  • Safe systems of work
  • Personal Protective Equipment (PPE)
  • Equipment maintenance and inspection
  • Risk Assessment and Method Statements
  • Vertical shaft entry and egress via Fixed Access Ladders
  • Access including detachment from Personal Fall Protection systems
  • Practical use of a tripod/frame/davit winch
  • Gas detector usage
  • Practical use of breathing apparatus, checks, selection and donning
  • Dangerous atmospheres
  • Zero visibility planning
  • Assessment

Course Information

  • Duration: three days
  • Trainer to student ratio: 1 to 6
  • Certification: certification awarded upon completion
Confined Space Rescue Training

Heightsafe’s specialist Confined Space Rescue Training course concentrates on the advanced rescue skills required to provide on-site cover for personnel working in confined spaces. Delegates practise rigging rescue hauling systems, using rescue stretchers and carrying out searches in zero visibility conditions.

Aims and Objectives

  • Current legislation
  • Dangerous atmosphere
  • Gas detection equipment
  • Vertical access and traverse techniques
  • Incident management
  • Immediate response risk assessment
  • Advanced emergency procedures and searches
  • Rigging of rescue hauling systems
  • Rescue stretchers
  • Practical exercises – FWBA / zero visibility

Course Information

  • Duration: three days
  • Trainer to student ratio: 1 to 6
  • Certification: certification awarded upon completion
Confined Space Refresher Training

Heightsafe’s Confined Space Refresher Training course is designed for personnel who have previously completed confined space training and need to keep their knowledge current. Over one day, delegates revisit legislation, safe systems of work, equipment checks and escape breathing apparatus.

Aims and Objectives

  • Current legislation
  • Definitions of confined spaces
  • Examples and categories of confined spaces
  • Communication and emergencies
  • Watchman duties
  • Safe systems of work, PPE and permits to work
  • Risk assessments and method statements
  • Equipment characteristics and limitations
  • Equipment maintenance and inspection requirements
  • Vertical shaft entry and egress via Fixed Access Ladders
  • Tripod and winch
  • Gas detector sampling techniques
  • Correct use of escape breathing apparatus

Course Information

  • Duration: one day
  • Trainer to student ratio: 1 to 6
  • Certification: certification awarded upon completion

Confined Space Training and the Law

The Confined Spaces Regulations 1997 require employers to avoid entry to confined spaces wherever reasonably practicable. Where entry can’t be avoided, work must follow a safe system of work, and suitable emergency arrangements must be in place before anyone goes in.

The Health and Safety Executive’s Approved Code of Practice, L101 Safe Work in Confined Spaces, makes clear that everyone involved must be competent. The Management of Health and Safety at Work Regulations 1999 also require employers to provide adequate training.

Every one of our courses covers this legislation, so delegates understand their own duties, the purpose of permits to work and risk assessments, and why rescue arrangements must be planned before entry.

Getting this wrong can lead to enforcement action as well as serious harm to your workers, so competence should be planned for before any confined space work begins.

Which Confined Space Training Course Do You Need?

The right course depends on the type of space, how it is accessed and the hazards involved. As a general guide:

  • Low Risk – spaces up to 3 metres deep, accessed via a Fixed Access Ladder
  • Medium Risk – where escape breathing apparatus may be needed
  • High Risk – non-standard access, dangerous atmospheres or zero visibility
  • Rescue – teams providing on-site rescue cover for confined space work
  • Refresher – trained personnel who need to keep their skills current

If you’re unsure which level your team needs, our specialists can talk through your spaces and recommend a suitable course. We also offer Risk Assessment Training for those planning confined space work.

How Our Confined Space Training Is Delivered

We host our courses at Heightsafe’s premises, or our trainers can come out to your premises. On-site training lets delegates practise on the access points, equipment and layouts they’ll use every day.

Every course combines classroom learning with practical exercises. Delegates train with the same equipment and scenarios they’ll encounter in the field, from tripods and davit winches to gas detectors and escape breathing apparatus.

Groups are kept small, with a trainer to student ratio of 1 to 8 on our low risk course and 1 to 6 on all other courses, so every delegate gets hands-on time and individual feedback.

After Your Confined Space Training

Delegates receive certification upon successful completion of their course. Keeping a record of each person’s training helps you show competence to clients, principal contractors and auditors.

Skills fade without practice, so we recommend planning refresher training as part of your wider safety programme. Our one-day Confined Space Refresher Training is designed for exactly this.

The equipment matters as much as the training. Heightsafe can also inspect and maintain your safety kit through our PPE Kit Testing and Maintenance service, and supply davit arm systems for confined space access.

Confined Space Training FAQs

What is Confined Space Training?

It teaches personnel how to identify confined space hazards, follow safe systems of work, use the correct equipment and respond to emergencies. Courses range from low risk entry to high risk work and specialist rescue.

The Confined Spaces Regulations 1997 and the HSE’s Approved Code of Practice require everyone involved in confined space work to be competent. Training is the most common way employers achieve and demonstrate that competence.

How long does Confined Space Training take?

Our low risk and refresher courses each take one day. Medium risk training takes two days, while our high risk and confined space rescue training courses each take three days.

Where is the training delivered?

We host courses at Heightsafe’s premises or deliver them on-site at your premises. On-site training means delegates can practise in the environments and with the access points they work with every day.

Do delegates receive a certificate?

Yes. Certification is awarded upon completion of every Heightsafe course, giving you a clear record of each delegate’s training for clients, contractors and audits.

How often is confined space refresher training needed?

There is no single fixed interval in law, but skills fade over time. Plan refreshers based on your risk assessments and any changes to work or equipment. Our one-day refresher course is designed for this.

Speak to an Expert

Get in touch with Heightsafe’s friendly, professional team today for free, no obligation advice on your training requirements.

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