Substation Doors

The Last Substation Door You'll Ever Need - fitted on over 10,000 substations in the UK.
DNO & IDNO Approved • Will Not Rust, Rot or Warp • 20-Year Warranty

Built on over 30 years of "fit and forget" manufacturing expertise, TS Designs security doorsets have been specifically engineered to meet the demanding requirements of electrical substations and utility infrastructure. Designed for long-term performance with no maintenance required, the doorsets help asset owners reduce whole-life costs while ensuring reliable protection of critical electrical equipment.

When developing our door range, our objective was clear, to provide a genuinely durable solution capable of withstanding the harsh environmental conditions commonly found at substations, while eliminating the corrosion issues associated with steel doors and the rot, warping, and ongoing maintenance challenges of traditional timber doors.

The result is a robust security doorset that delivers reliable protection, reduced maintenance requirements and a long operational lifespan, making it the ideal choice for substations, switch rooms, transformer compounds and other critical infrastructure assets.

Substation Specific Features:

• Class-leading louvres, engineered to meet stringent DNO requirements, providing proven protection against rigid body penetration and high-pressure water ingress
• Cable Ports designed to suit individual requirements
• DNO specific high quality, high performance dual key locks, TS230
• IDNO specific locks
• Asbestos notice door mounted holders

Designed specifically for utility environments, our doors offer:

• Limitless lifespan
• Lower whole-life costs with no ongoing maintenance
• Fewer reactive call-outs and assured long-term performance
• Faster, more straightforward on-site installation
• Enhanced asset security and network resilience
• A 20-year warranty to support long-term client commitments

We work closely with ICPs, DNOs, IDNOs, construction companies, utility contractors, and asset owners across the UK, providing expert support from specification and design through to manufacture and installation. Whether you're delivering a single substation or a large-scale utility programme, TS Designs has the experience, technical expertise, and proven track record to help ensure your project is delivered efficiently, compliantly, and to the highest standards.

TS Designs is proud to be specified by major DNOs, including SP Energy Networks, Electricity North West, Scottish & Southern Electricity Networks, and National Grid Electricity Distribution, as well as leading IDNOs such as GTC. Our solutions are also approved and widely accepted by other IDNOs, including MUA Group, Eclipse Power, UK Power Distribution, and Last Mile.

Specifications

Market Leading Features

• Contains no organic materials, no ferrous components, and no painted parts. eliminating traditional issues associated with timber doorsets, including rot, warping, twisting, and sticking doors
• Removes the problem of rust associated with steel doorsets.
• Being essentially a modular system, the PA1 is available in virtually limitless configurations.
• In addition to single and double leaf doorsets, we offer a wide range of mullions, transoms, and removable solid or louvred panels to suit almost any application.
• The GRP (Glass Reinforced Plastic) faces are pigmented throughout their full thickness
• If surface damage occurs, the same colour remains visible beneath.
• The pigments used are UV stable for maximum longevity.
• Available in a range of surface textures, the most common specification is our "cracked ice" anti-vandal finish
• Absorbs high levels of vandalism, abuse and everyday wear and tear without visible impact.
  

Options

• The door core is constructed from two interlocking trays of 3mm aluminium sheet filled with inert polyurethane foam.

• This closed-cell, non-hygroscopic foam provides excellent thermal performance, delivering the compressive strength required to withstand significant impact and attack



• Every door leaf is mounted on a full-length heavy-duty continuous stainless-steel hinge, providing exceptional durability and long-term reliability.
  

Configurations

• Single leaf outward opening security doorsets with or without side/over panels

• Double leaf outward opening security doorsets with or without side/over panels

Min/Max Structural Opening Sizes

Options

• Hinged or removable over panels, with removable transoms

• Hinged or removable side panels, with removable mullions

• Vision panels to customer preferred size or fully maximised

• Louvre vents to customer preferred size or fully maximised. With or without insect/vermin mesh

• Cable access ports

Leaf Construction

• Leaf thickness: 44mm

• Leaf construction: two 3mm aluminium interlocking trays

• See Finishes Section - Finishes for facing materials

• Core material: non-hygroscopic polyurethane foam or impact resistant honeycomb

• Heavy duty anodised aluminium door edgings c/w integrated astragal to leading edge

• Leaf weight with polyurethane infill: approx. 24 kg/m² excluding hardware

Frame Construction

• Frame profile: single rebate c/w integrated jacking channels

•  Frame profile size: 100mm x 67mm

• Frame material: heavy duty extruded aluminium sections

• Assembly method: butt jointed corners

• Threshold: stainless steel plate with or without extruded low-profile aluminium upstand

• Weather seal: integral polyurethane foam gasket 

Fixing Method

• 2nd fix between structural opening reveals

• Integrated and adjustable jacking channel frame fixing system

• Suitable wall construction materials: brickwork, blockwork, concrete, steel or timber

Hardware

• Heavy duty stainless steel continuous hinges

• Single, 2 & 3-point locking systems

• Panic escape, emergency escape, manual deadlocking, automatic deadlocking or electro-mechanical deadlocking options

• External key access with or without cylinder guard protection

• External padlockable hasp & staple devices

• Tower bolts or 2-point locking system to passive leaf

• Door closers or door stays

• Factory fitted unless otherwise stated

• External access via electro-mechanical access system

• Electro-mechanical access via pin code lock

Finishes

•  Standard aluminium frame and door edge section finish: Satin silver anodised. AA25.

• Alternative aluminium frame and door edge section finish: polyester powder coated in a range of BS/RAL colours

• Door leaf, side panel and over panel faces: GRP (Glass Reinforced Plastic), mill finished aluminium or polyester powder coated                        aluminium in a range BS/RAL colours

• GRP faces are pigmented throughout, UV stable and available in a range of textures

• Combinations of materials, finishes, textures and colours may be specified to each door leaf and panel face

Certification

• UKCA marked in accordance with external door standard EN 14351-1: 2006 & A2: 2016

• Panic and emergency escape hardware certified in accordance with EN 1125: 2008 and EN 179: 2008

• Hinges certified in accordance with EN 1935: 2002

• Quality Management System certified to EN ISO 9001: 2015

• Environmental Management System certified to EN ISO 14001: 2015

• Occupational H&S Management System certified to EN ISO 45001: 2018



Example Configurations

If you would like to know more about our security door solutions and how we can help you reduce your through-life costs and carbon emissions, please send us your details and the issues you would like us to address.