Installation Process

The Milsteel Installation Process

Every Milsteel project follows a clear, five-step process designed to deliver precision, reliability and full compliance. Whether you need a fire-rated door, security door, louvre door or personnel door, our team ensures that each stage from survey to aftercare is handled with care and expertise.

We pride ourselves on our reputation for end-to-end service, managing every step from design to installation. All installations follow our proven Milsteel process, giving you confidence in a professional result every time.

Free quote for custom made steel doors and maintenance icon

1. Site Survey and Assessment

Our process begins with a detailed door surveying service, carried out by one of Milsteel’s experienced surveyors. During this visit, we take precise measurements of your existing openings to ensure your new steel doors fit perfectly. We’ll also discuss your project requirements in full, including hardware options, locking systems, access control, ventilation features and preferred finishes or colours.

This stage allows us to identify any potential on-site challenges early, ensuring your installation runs smoothly and efficiently later on. Once all details have been confirmed, we provide you with a clear, itemised quotation and estimated lead times for approval before manufacturing your made-to-measure steel door.

For customers opting for a supply-only service, we can still carry out a professional site survey for a nominal fee. This assures you that a qualified Milsteel expert has verified all measurements and specifications.

2. Door Specification and Sourcing

Following the survey, our technical team finalises the full specification of your new door-set. Every door is manufactured in the UK using high-quality steel and components, tailored precisely to your site’s measurements and operational needs. This guarantees a secure, long-lasting fit that meets all relevant UK building and fire safety standards.

We offer a complete range of steel door solutions, including fire-rated doors, security doors, personnel doors and emergency exits, each available with a variety of hardware, glazing and finish options. Whether your project requires maximum strength, insulation or aesthetic appeal, we can provide the right configuration to match.

Our in-house production and quality assurance teams oversee each stage of the process, from design to fabrication. This close control ensures consistent quality, short lead times and reliable delivery so you receive a steel door that performs exactly as promised.

Steel door surveys and inspection reports icon
Steel door repair and maintenance icon

3. Old Door Removal and Disposal

Before door installation begins, our fitting team carefully prepares your site by safely removing the existing door and inspecting the surrounding structure. We ensure that the opening is properly aligned, secure and ready for your new steel door-set.

If agreed in advance, we will also handle the removal and recycling of your old door. This not only saves you the hassle of disposal but also supports our commitment to sustainable working practices. All removed materials are handled responsibly and, where possible, recycled to reduce waste. Our engineers always work with precision and respect for your premises, leaving each area clean, tidy and ready for use. This level of care ensures minimal disruption to your operations and a seamless transition from old to new.

4. Professional Installation

Your new made-to-measure steel door is then installed by Milsteel’s highly skilled engineers, each trained to deliver a precise and compliant fitting. We take care of every detail from securing the frame and fitting the hardware, to setting up locking mechanisms, closers and thresholds.

During installation, we perform continuous quality checks to confirm the door operates smoothly, seals properly and meets all safety and performance standards. Every door is adjusted for perfect alignment to guarantee long-term reliability.

Once the work is complete, our team will walk you through the finished installation, demonstrating operation and maintenance basics before you sign off to confirm your satisfaction. This final handover ensures complete confidence in the durability and quality of your new door.

Steel door service and repair icon

5. Aftercare and Compliance Checks

Our relationship with clients extends far beyond installation. We offer a comprehensive aftercare and maintenance service to help keep your doors performing at their best throughout their lifespan. For safety-critical doors such as fire doors and emergency exits, we strongly recommend a professional inspection every 12 months. During these checks, our engineers examine key components including seals, hinges, door closers, panic hardware and intumescent strips, to ensure compliance with current UK safety regulations.

 Each inspection is documented in a detailed report, outlining results and any recommended actions. Regular maintenance not only keeps you compliant with legal obligations but also prevents costly repairs and extends the operational life of your doors, giving you long-term value and peace of mind.

Why Choose Milsteel?

  • Over 20 years of experience in steel door manufacture and installation
  • UK-made doors with short lead times
  • Fully certified fire and security door options
  • Complete service from survey to maintenance
  • Skilled engineers ensuring compliant, long-lasting results

Ready to Get Started?

Whether you need a single replacement door or a full site upgrade, Milsteel’s proven process guarantees precision, safety and reliability at every stage. Request a free quote today to get started with your project.

Free quote for custom made steel doors and maintenance icon

Request A Quotation

Thank you for your interest in having Milsteel provide your steel door solution. Please fill out the details below and we will be in touch with your quotation as soon as we can!

Thank you for your interest in having Milsteel provide your steel door solution. Please fill out the details below and we will be in touch with your quotation as soon as we can!