Bespoke Steel Hinged Doors | Durable Fire-Rated & Thermally Rated Solutions by Tridoor

When security, fire resistance, and thermal efficiency matter most, steel hinged doors are the clear choice for industrial, commercial, and even domestic settings. At Tridoor Industrial Door Services Ltd, we specialise in bespoke steel door systems, designed and manufactured in the UK to meet a wide variety of performance and aesthetic needs.

Whether you're securing a warehouse, insulating an industrial facility, or looking for a robust alternative to timber doors for your home, our steel hinged doors offer unmatched strength, compliance, and longevity.


What Are Steel Hinged Doors?


Steel hinged doors are heavy-duty, swing-type doors constructed with high-grade steel panels and fitted into reinforced frames. These doors are most commonly used as:

  • Personnel doors for controlled entry

  • Fire escape doors with rated fire protection

  • Security doors for high-risk environments

  • Thermally insulated access points for energy efficiency

Unlike traditional wooden or composite doors, steel hinged doors are built for resilience — resisting weather, fire, intrusion, and wear over time.


Key Features of Tridoor’s Steel Hinged Doors


At Tridoor, every door we manufacture is custom-made to your specifications. Our steel hinged doors include:

Fire Rating Up to 4 Hours


Our doors are tested and certified for fire resistance up to 240 minutes, helping meet Building Regulations and BS standards in commercial settings.

Thermally Rated Performance


With insulation achieving U-values as low as
1.4 W/m²K, our doors contribute to energy savings and consistent internal temperatures.

Security and Durability


With high-grade locking hardware and steel thicknesses tailored to your security level, our doors protect against forced entry, vandalism, and environmental damage.

Fully Bespoke Design


Choose from optional features including:

  • Glazing panels or vision windows

  • Louvre panels for airflow

  • Wide range of RAL colours and powder-coat finishes

  • Panic bars, keypads, or access control systems

  • Acoustic or blast-resistant configurations

Every project receives a tailored design — no off-the-shelf compromises.


Use Cases for Steel Hinged Doors


Steel doors are as versatile as they are strong. Here’s how our customers use them:

Industrial & Commercial Buildings


  • Fire exits in factories or warehouses

  • Access points in clean rooms or cold storage units

  • Secure entrances for data centres, retail units, and plant rooms

Residential Settings


  • Durable and stylish garage side doors

  • Outbuildings, workshops, or storage units requiring extra protection

  • Fire doors between the house and attached garage

Public & Government Facilities


  • Educational institutions

  • Hospitals

  • Public service buildings

  • Utility rooms or stairwells

Steel doors are also increasingly specified by architects for their performance, modern aesthetic, and compliance with fire and safety regulations.


Why Choose Tridoor?


Tridoor brings over 30 years of industry experience and a UK-based manufacturing facility in Barnsley to every project. Here’s why clients trust us:

  • Expert Design Support from concept to installation

  • Rapid Turnaround for urgent replacements or new builds

  • 24-Hour Emergency Call-Out

  • Installation Teams Nationwide

  • CE Marked, Fire-Rated, and Regulation Compliant

Our doors are manufactured with care, installed by specialists, and backed by a team dedicated to long-term service and customer satisfaction.


From Quote to Installation: How It Works


Getting started is easy:

  1.  Site Survey or Quote Request
    Contact us with your specifications or allow us to carry out a free site survey.

  2.  Custom Design & Approval
    We’ll propose a solution that meets your structural, performance, and aesthetic requirements.

  3.  Fabrication
    Your door is manufactured in-house, ensuring fast delivery and strict quality control.

  4.  Installation
    Our expert engineers install the door, ensuring a perfect fit and finish.

  5.  Aftercare & Support
    We’re available for ongoing servicing or urgent repairs.


Get a Quote for Your Steel Hinged Door Today


Whether you need a single fire-rated door or a full site upgrade with multiple steel hinged doors, Tridoor is ready to help.

📞 Call us today or request a free quote — we’ll design and install a steel door solution that fits your property, complies with regulations, and delivers long-term peace of mind.


Helpful Resources



High Speed Doors
By Elusha Cronje July 30, 2025
Need reliable, fast-operating industrial doors? Discover how our high speed doors improve workflow, cut energy costs, and keep your facility secure and compliant.
By Up2Speed Marketing Limited June 30, 2025
Why Prompt Door Repairs Matter: Safety, Compliance, and Peace of Mind A broken or malfunctioning door might seem like a minor inconvenience until it compromises safety, security, or access to your home or business. Whether it’s a garage door that won’t close, a roller shutter stuck halfway, or a fire exit that doesn’t latch properly, the consequences of ignoring door repairs can be serious. At Tridoor , we understand how crucial it is to restore doors quickly and correctly. With a UK-wide team of trained engineers and round-the-clock callouts, we help homeowners and businesses stay safe, compliant, and operational. Here’s why professional door repair should never be delayed. 1. Safety Comes First Doors are safety-critical parts of any property. When they don’t function properly, they can pose risks to those living or working around them. Faulty electric garage doors may unexpectedly fall or fail to open, posing a danger to people and vehicles. A damaged fire door might not close or seal correctly in the event of a fire, reducing its effectiveness in containing smoke or flames. Timely repair helps ensure: Safe entry and exit for occupants Reliable emergency functionality , especially for fire doors Compliance with health and safety standards At Tridoor, our repair teams prioritise restoring these essential safety functions, whether it’s a home garage or a commercial premises. 2. Protecting Property and Security Every door is also a security barrier. A door that doesn’t close or lock properly can be an open invitation for theft or vandalism, particularly for: Roller shutters on high street shops Pedestrian doors in warehouses or schools Garage doors in residential areas If your premises are left exposed, the cost of inaction can far outweigh the cost of repair. Our engineers are equipped to carry out same-day roller shutter repairs , garage door repairs , and more, helping protect your property fast. See our full repair services 3. Regulatory Compliance Matters Certain door types, especially fire-rated doors and emergency exits , are legally required to function correctly. If a routine safety inspection identifies a fault and it’s not repaired promptly, your business could face: Compliance penalties Insurance complications Legal liability in the event of an incident Tridoor offers repair services that meet BS standards and building regulations, with documentation and certification provided as needed. We work closely with schools, councils, and commercial landlords to ensure all properties remain compliant and safe. 4. Cost-Saving Through Timely Repairs A faulty door left unrepaired can often lead to worse, and more expensive, damage. Motors burn out, tracks become misaligned, seals degrade, and entire systems may fail. With early intervention: Repairs are usually faster and more affordable Damage can be contained , avoiding full replacement. You benefit from less disruption to daily use. We also offer preventative maintenance plans , helping our clients extend the lifespan of their doors and reduce unexpected repair costs long term. 5. Why Choose Tridoor for Repairs? We know how stressful urgent repairs can be — and how frustrating slow or unreliable contractors are. That’s why Tridoor offers: 24/7 emergency response Experienced engineers across the UK Repair solutions for all door types , including roller shutters, electric garage doors, sectional doors, and more Genuine parts and manufacturer-approved repair methods Whether it’s a quick motor replacement or a full overhaul of a damaged shutter, we handle it efficiently and professionally, all backed by service guarantees and clear pricing. Contact us now to book your repair. Act Early, Stay Secure Ignoring a broken or misaligned door isn’t just a minor hassle; it’s a safety, security, and compliance risk. With Tridoor’s professional door repair services, you can resolve issues quickly and get back to normal with confidence. We’re here to help, day or night, across the UK. Need urgent repairs or a preventative inspection? Get in touch with Tridoor today and restore peace of mind.
By Up2Speed Marketing Limited May 20, 2025
Why Regular Industrial Door Servicing Is Critical for Business Operations Industrial doors do far more than open and close; they safeguard stock, control energy loss and protect staff. Yet they’re often ignored, until a jammed roller shutter halts production or a failed fire door breaches compliance. Proactive industrial door servicing turns these potential crises into routine, low‑cost maintenance tasks, protecting productivity and people alike. Introduction From distribution centres to food‑processing plants, industrial doors are mission‑critical. They regulate workflow, keep environments secure and help businesses meet health‑and‑safety targets. When a door fails, the ripple effects include: ● Downtime – stalled forklifts, missed dispatch slots, overtime costs ● Asset damage – warped tracks, torn curtains, dented panels ● Safety risks – trapped personnel, blocked fire‑escape routes ● Compliance exposure – insurance disputes, HSE penaltiesRegular industrial door servicing is a modest investment compared with these hidden costs. What Is Industrial Door Servicing? A professional maintenance visit typically includes: 1. Inspection – checking panels, tracks, springs, safety edges and control gear for wear or misalignment. 2. Lubrication – applying specialist greases to rollers, hinges and bearings to minimise friction. 3. Safety checks – testing photo‑cells, emergency release systems, fall‑arrest devices and fire‑door closers. 4. Replacement of worn parts – swapping cables, seals or weather strips before they fail. Doors That Require Routine Attention ● Roller shutters – heavy‑duty curtains and barrel assemblies need tension and balance checks. ● High ‑ speed doors – rapid cycles demand frequent sensor calibration and curtain inspection. ● Fire ‑ rated doors – legally mandated fire door compliance inspections verify integrity and automatic closing. ● Sectional overheads, dock levellers and steel security doors – each has unique service points that keep them running smoothly. Key Benefits of Regular Servicing Enhanced Operational Safety A well‑maintained door closes fully, detects obstructions and disengages safely in an emergency. This reduces the risk of crush injuries and ensures evacuation routes remain clear. Prevention of Unexpected Breakdowns Routine door maintenance identifies frayed cables or misaligned tracks before they snap or jam, avoiding unplanned stoppages and expensive call‑outs. Prolonged Equipment Lifespan Just as regular oil changes protect an engine, scheduled lubrication and component replacement extend a door’s working life, delaying capital expenditure on replacements. Legal Compliance Fire‑rated doors must meet BS EN 16034 standards and be inspected at least annually. Planned servicing produces a clear industrial door inspection record for auditors, insurers and the HSE. Why Choose Tridoor for Servicing?Certified Engineers & Fast Response Our technicians hold DHF and Gate Safe accreditation, arriving in fully stocked vans to resolve 90 % of faults on the first visit. Competitive Maintenance Plans Whether you need a one‑off roller shutter repair or a multi‑site contract, we offer flexible packages that include priority call‑outs and discounted parts. Nationwide Coverage & Multi‑Door Expertise From high‑speed clean‑room doors to cold‑store sliding panels, Tridoor services every brand and model, ideal for facilities with mixed assets. Robust Record‑Keeping We supply digital service logs, risk assessments and fire‑door certificates, valuable evidence for insurers and compliance officers. Frequently Asked Questions Do I need servicing if my doors are under warranty? Yes. Manufacturer warranties often stipulate professional maintenance to remain valid. Can servicing be done outside production hours? Absolutely. Tridoor schedules visits during shift changes, evenings or weekends to minimise disruption. What happens if engineers find a serious fault? We’ll issue a safety advisory, quote for immediate repair and, if necessary, isolate the door until it’s safe, protecting staff and assets. Conclusion Industrial doors are frontline assets—guarding stock, streamlining logistics and ensuring fire safety. Neglecting them invites breakdowns, compliance breaches and costly downtime. Regular industrial door servicing is therefore essential, not optional. Ready to safeguard your operation? Book a one‑off inspection or enrol in a planned maintenance schedule today. Contact Tridoor to keep your doors, and your business,moving smoothly.
By Up2Speed Marketing Limited April 17, 2025
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The Importance of Industrial Door Maintenance for Your Business
A blue van is parked in front of a garage door.
By Up2Speed Marketing Limited November 8, 2023
Reducing the risk of serious injury means setting boundaries for anyone operating your industrial overhead door and ensuring all areas are properly marked.
A red and yellow garage door is open in a warehouse.
By Up2Speed Marketing Limited March 23, 2023
Tridoor has been producing high speed doors for industrial businesses for 20+ years. Our high speed doors provide both ease of access and high security.
January 4, 2023
In simple terms yes. Roller shutter doors are manufactured using individual components that make up the full door system. The main components of a roller shutter door is the barrel assembly and the door curtain, these too are made up of individual items and can be replaced but the extent of this damage or wear to these two vital parts can sometimes make replacement a more cost effective option. The roller shutter door barrel: The barrel assembly or axle is often a steel tube, the size and thickness is determined to prevent deflection of the tube under the weight of the door curtain (industry standard is 1:400). The barrel may contain shafts, bushes, springs, motor and brakes. Depending upon the age of the door, all the items are readily available and replaceable. The roller barrel assembly is a classed as a suspension element and carries the weight of the roller shutter curtain, It is recommended that any repairs to the barrel assembly is carried out by a specialist door contractor who has the expertise to identify the parts, faults and can carry out the repairs safely. Replacement of motors and safety brakes should only be carried out by a specialist door contractor 
January 4, 2023
Roller shutter maintenance depends. Legal rights say industrial doors need maintenance every year but a domestic door can last longer due to lack of use.