

Describe the opening and the working day
Provide photographs and approximate dimensions for an initial discussion, but allow the final specification to follow a site assessment. Explain any planned change in vehicles, equipment or building use as well.
- What passes through: people, vehicles, goods or a combination?
- What clear width and height does the largest regular movement require?
- How frequently does the door operate, and are there peak periods?
- Is the opening exposed, part of a heated space or restricted by overhead services?
- Which interruptions would be most disruptive, and when could installation take place?
Separate vehicle access from pedestrian needs
A large opening is not the only access decision. Explain how employees, visitors and delivery drivers move around the premises, and whether an independent personnel door is needed.
Where an opening is part of an escape route or has a fire-protection function, the requirement must be established by the appropriate competent adviser and matched to a documented specification. Do not select hardware or assume fire or security performance from a photograph or a generic product name.
Specify the evidence, not just the description
If a security, thermal or other performance level matters, state the requirement and ask for evidence covering the quoted door assembly and configuration. Check that the proposed hardware, glazing and installation conditions are included in the documented scope.
A steel door is not automatically a fire door, and a security description is not a substitute for the certification needed for a particular requirement. Confirm the exact product before ordering.
Plan safe operation and ongoing care
For a powered system, ask how the complete installation will be assessed for its setting and users, and which instructions and handover information will be supplied. Agree how faults will be reported and who is responsible for day-to-day operation.
For workplace equipment, plan maintenance around its instructions, use and risks, using competent people. Ask what records should be kept and how visits can fit around operations; do not rely on a blanket servicing interval.
Technical references: HSE: ensuring powered doors and gates are safe; HSE: maintenance of work equipment.
Ask for a quotation you can plan around
Assess the complete proposal rather than the door price alone. The right enquiry gives Portman enough operational detail to discuss suitable options, without assuming that every product or service arrangement fits every premises.
- Exact product, operation, controls and performance documentation.
- Survey, removal, installation and handover scope.
- Building work, electrical work, access equipment and other exclusions.
- Current lead time and expected disruption for the proposed works.
- Warranty conditions, planned servicing and the repair-support arrangements offered.
Useful next steps
Discuss your opening and operational requirements
Prepare the site postcode, photographs, approximate opening size and a description of daily use. Include any documented fire, escape or security requirements in the brief.
Discuss your industrial door brief

