Cat A vs Cat B Strip Outs Explained: What’s the Difference?
When planning a commercial refurbishment, understanding the difference between Cat A and Cat B strip outs is essential. These two approaches serve different purposes and impact cost, programme and final building condition.
HIR Ltd supports contractors, developers and landlords with professional commercial strip out services across London and the UK.
What Is a Cat A Strip Out?
A Cat A strip out typically prepares a commercial space to a basic, functional standard ready for tenant fit-out.
Cat A works usually include:
- Removal of existing partitions
- Basic M&E adjustments
- Raised floors and suspended ceilings
- Fire detection systems
- Basic lighting
Cat A strip outs are common in office buildings where landlords want to provide a blank canvas for incoming tenants.
What Is a Cat B Strip Out?
A Cat B strip out involves removing tenant-specific fit-outs to return the property to a shell or Cat A condition.
Cat B works may include:
- Removal of bespoke partitions
- Breakout areas and meeting rooms
- Specialist lighting installations
- Kitchen and welfare areas
- Decorative finishes and branding
Cat B strip outs are common during lease-end dilapidations.
Read more about office strip outs here.
Key Differences Between Cat A and Cat B Strip Outs
| Cat A Strip Out | Cat B Strip Out |
|---|---|
| Landlord-led preparation | Tenant-led removal |
| Basic fit-out level | Bespoke fit-out removal |
| Prepares space for new tenant | Returns space to landlord condition |
| Usually less complex | Can involve extensive internal removal |
Understanding which approach applies to your project avoids delays and compliance issues.
When Is a Soft Strip Required?
Both Cat A and Cat B strip outs often involve soft strip demolition, where non-structural internal elements are carefully removed.
Soft strip works ensure that the building structure remains intact while internal elements are safely dismantled.
Compliance & Safety Considerations
All commercial strip outs must comply with UK health and safety regulations, particularly where mechanical and electrical systems are involved.
We operate in line with guidance from:
Health and Safety Executive (HSE)
Proper waste handling is also essential.
Cat A & Cat B Strip Outs in London and Surrounding Areas
HIR Ltd provides professional Cat A and Cat B strip out services across London, Slough, Staines and surrounding areas.
Why Choose Professional Strip Out Contractors?
Cat A and Cat B strip outs can quickly become complex, particularly in multi-occupancy buildings or live environments.
Working with experienced contractors ensures:
- Controlled dismantling
- Waste segregation and recycling
- RAMS documentation
- Efficient programme management
- Reduced disruption
For large-scale projects, strip outs are often delivered alongside:
Strip Out FAQs
What is the difference between a Cat A and Cat B strip out?
A Cat A strip out prepares a commercial space to a basic, functional standard ready for tenant fit-out, while a Cat B strip out removes tenant-specific installations and finishes to return the property to a shell or Cat A condition.
When do I need a Cat A strip out?
Cat A strip outs are usually required when a landlord wants to prepare a building for a new tenant by providing essential building services, ceilings, raised floors and basic lighting.
When is a Cat B strip out required?
Cat B strip outs are typically carried out at the end of a lease to remove bespoke tenant fit-outs such as partitions, kitchens, meeting rooms and branded finishes.
Are Cat A and Cat B strip outs classed as soft strip outs?
Yes. Both Cat A and Cat B strip outs are forms of soft strip out works, as they involve removing non-structural internal elements while leaving the main structure intact.
How long does a Cat A or Cat B strip out take?
Project duration depends on the size and complexity of the building. Small office strip outs may take a few days, while larger commercial spaces can take several weeks.
Do Cat A and Cat B strip outs include waste removal?
Yes. Professional strip out contractors manage waste removal, segregation and recycling as part of the project.
Do you provide Cat A and Cat B strip outs in London and surrounding areas?
Yes. HIR Ltd delivers Cat A and Cat B strip out services across London, Slough, Staines and surrounding areas.
Planning a Cat A or Cat B Strip Out?
HIR Ltd delivers safe, compliant and fully managed commercial strip out services across London, Slough and the UK.
📞 Call: 0208 166 1221
📧 Email: info@hirltd.co.uk
📍 Based near Heathrow, operating nationwide – including Slough and Staines
As you can see, our team can provide the best service you need with demolition or strip out projects. Simply call us on 0208 166 1221 or 01923 450 968 (Surrey). Alternatively, feel free to contact us using the form on the contact us page
