Gatehouse towers at HMP Wormwood Scrubs, London

Secure Environments

We create secure spaces.

We design, build and maintain prison spaces, with security-cleared teams working around the live regime.

Trusted by the Ministry of Justice and HM Prison Service

Delivered by Parogon

Built inside the wire.

Built inside the wire.

In a prison, the regime comes first. Every person, vehicle, tool and delivery is controlled, and the works have to fit around movement, association and lock-down. We plan around that from the first drawing.

For over 20 years Parogon has delivered for the Ministry of Justice and HM Prison Service: security improvements, fire regulation works, secure fit-out, new buildings and modular units, and maintenance behind the gate. Our teams are cleared to EL1 or higher, and every package is built to MoJ standards with certified handover.

Entrance to HMP Bronzefield, Surrey

Why Parogon

Why the MoJ and HM Prison Service trust Parogon

One team, start to finish

We design, build and maintain. No hand-offs between contractors, so nothing gets lost.

One drawing, built exactly

You sign off one complete drawing. That drawing is what gets built, to an agreed cost and programme.

Trusted inside the wire

Security-cleared teams work around the regime, under strict key and tool control.

  • 20+ years: NHS, Ministry of Justice and major organisations
  • Every project manager SMSTS certified
  • Scope, cost and programme agreed up front

Asked first

Three questions we hear before every secure project.

01

Can your people work safely inside a live prison?

Teams cleared to EL1 or higher work around the daily regime, under strict key and tool control.

1 / 3

What we deliver

What we deliver inside the wire.

  1. 01Security improvements
  2. 02Fire regulation services
  3. 03Secure fit-out
  4. 04New builds & extensions
  5. 05Modular & container units
  6. 06Purposeful spaces
  7. 07Maintenance behind the gate

How we work · One team, start to finish

How we work: Design, Build, Maintain

  1. 01

    Design

    We design with the regime, security and fire strategy from day one, and make every square metre count.

  2. 02

    Build

    Security-cleared teams work around the daily regime, with strict key and tool control and one accountable project manager.

  3. 03

    Maintain

    The same vetted team maintains what we built, so the estate stays compliant and secure.

How we work →
Galleried wing inside a secure estate

Built inside the wire.

External fabric and secure window upgrades at HMP Winchester

Flagship project · Category B · Live estate

HMP Winchester

Security, fire compliance, wing refurbishment, secure fit-out and container units

schemes delivered
Multiple
schemes delivered
regime maintained
Live
regime maintained
secure estate
Cat B
secure estate

The brief

A Category B Victorian prison, kept running throughout. HMP Winchester has trusted Parogon with multiple schemes: security improvements, fire compliance, wing refurbishment, secure fit-out and container units, all delivered while the prison stayed operational.

What we did

  • Security-cleared teams

    All cleared to EL1 or higher.

  • Key and tool control

    Strict procedures on every package.

  • Certified handover

    Compliant on every package, every time.

  • Live regime maintained

    The prison kept running during the works.

The result

Multiple
completed schemes in a live Victorian estate
Certified
handback on every package

Tap the photos to flick through the project.

Groundworks inside the grounds of HMP Bronzefield

Deep dive

Working inside a live regime

The establishment's routine sets the programme. We plan access, deliveries and sequencing with them before work starts.

  • Teams cleared to EL1 or higher
  • Key and tool control on every package
  • Deliveries, vehicles and access booked through the establishment
  • Works sequenced around movement, association and lock-down
  • One project manager as the single point of contact for the establishment
Heavy fire door with steel hardware in a grey corridor

Deep dive

Fire safety in secure estates

Older estates carry decades of penetrations, alterations and tired doors. We survey, fire-stop, compartment and certify.

  • Fire doors and door sets
  • Compartmentation
  • Fire-stopping
  • Detection
  • Certified remedials
New building elevation at HMP Bronzefield

Deep dive

Safe by design

Detailing for custodial and mental health settings, specified from the first drawing. HMP Bronzefield's Mental Health Unit shows how it comes together.

  • Anti-ligature fixtures
  • Anti-barricade doors
  • Vandal-resistant finishes
  • Tamper-proof services
  • Secure glazing
Exterior of the training restaurant at HMP Wormwood Scrubs

Deep dive

Spaces with purpose

Rehabilitation needs real settings. At Wormwood Scrubs we delivered Fred Sirieix's vision for The Right Course: a coffee shop and table-service restaurant where prisoners train in hospitality for work on release, with a full fit-out including M&E, inside an operational prison.

See Wormwood Scrubs →

Inside the secure estates we build for

Inside the new building at HMP Bronzefield
Inside the new building, HMP Bronzefield
Single-storey modular accommodation, design option
Single-storey modular accommodation, design option
Accommodation container cutaway, design option
Accommodation container cutaway, design option
Multi-cell layout concept, design option
Multi-cell layout concept, design option
40ft container training and classroom unit, design option
Container training unit, design option
Secure modular unit, design option
Secure modular unit, design option

FAQs

Secure estate FAQs

Are your teams security cleared for prison work?

Yes. Our teams are cleared to EL1 or higher and work around the daily regime, under strict key and tool control.

Do you carry out fire stopping and fire door works in prisons?

Yes. Our fire regulation services cover fire doors, compartmentation, fire-stopping, detection and certified remedials. We've delivered fire compliance works at HMP Winchester while the prison stayed operational.

Can you build new buildings inside a prison?

Yes. At HMP Bronzefield we designed and built a new Mental Health Unit in 16 weeks and a 235 m² office extension, working with planning officers to maximise usable floor space.

Do you build to MoJ standards?

Every package is built to MoJ standards and handed back with certification, ready for sign-off.

Can you add secure space quickly with modular or container units?

Yes. Standalone container and modular units (20 and 40ft, insulated, clad and fitted out) add secure space fast, with anti-ligature and anti-barricade detailing.

Do you maintain what you build in secure estates?

Yes. The same vetted teams provide ongoing maintenance behind the gate, so they already know the estate, its procedures and its assets.

Anthony Mukabaa, owner of Parogon
“We built Parogon to take care of a project from the first sketch to long after handover.”
Anthony Mukabaa · Owner, Parogon
Read Macca's letter →

Your next step

Secure works, regime uninterrupted.

Tell us about the estate and the regime. We agree scope, cost and programme up front, and plan the works around both.

20+
Years of delivery
MoJ
Ministry of Justice partner
Vetted
Security-cleared teams
Certified
Compliant handover

or call 01483 799433