- Location
- Cookstown, County Tyrone
- Main postcode district
- BT80
- Nearby (straight line)
- Magherafelt (10 miles), Dungannon (10 miles) and Portadown (19 miles)
- Survey and quote
- Free, with a fixed written quote
Dock traffic lights are red and green signals mounted outside and inside a loading bay to tell the driver and dock staff when it is safe to move or load. Interlocks are control links that stop equipment operating out of sequence, for example preventing the door opening until the trailer is restrained, or the leveller operating until the door is fully open.
Where does this fit at a dock in Cookstown?
Whether your unit in Cookstown has one dock or twenty, the survey looks at each bay's existing controls before we quote a fixed price in writing. Food and chilled operations around Cookstown with inflatable shelters often add interlocks so the shelter only inflates once a trailer is docked and restrained.
Older docks in Cookstown with separate door and leveller controls can be brought into a proper sequence by adding interlocks that stop equipment working out of order.
For dock traffic lights and interlocks in Cookstown, we begin with a free site survey and a fixed written quote, so you know the scope and cost before committing. We take responsibility for managing the job, and specialist installation engineers carry it out under our supervision. Bays are taken out of use in a planned sequence so the rest of the dock keeps working, and evening or weekend work can be arranged. Each item is tested at handover and the documentation is left with you.
How much do dock traffic lights and interlocks cost?
Dock traffic lights and interlocks typically cost £650 to £3,400 per bay, supplied and fitted, excluding VAT. A pair of manually switched LED signals sits at the lower end, while a full interlock panel linking door, leveller, restraint and shelter sits towards the top.
What moves the price:
- Level of control: standalone lights, door-linked lights or a full interlocked sequence.
- Existing control panels: modern door and leveller panels often accept interlocks directly; older panels may need replacing with a combined bay panel.
- Sensors: door position switches, trailer presence sensors and restraint signals each add parts and wiring.
- Cable runs: distances between lights, panels and the power supply.
- Number of bays and timing: repeat bays reduce the cost per bay, while out-of-hours working adds to it.
These are guide budgets. After a free site survey we send a written quote, and that quote is the fixed price. VAT is added at the standard rate.
How do inside and outside dock traffic lights work together?
Inside and outside dock lights always show opposite colours: when the driver sees red, dock staff see green, and the other way round. Each light is aimed at a different person, so each one only ever gives one instruction.
- Outside light, facing the driver: red means stay on the bay because loading is in progress; green means the bay is clear to leave or to reverse on to.
- Inside light, facing dock staff: green means the trailer is in place and it is safe to open the door and load; red means do not open the door or enter the trailer.
Lights can be switched in three main ways:
- Manually, by a switch beside the door, relying on dock staff to change it at the right moment.
- By door position, so opening the door automatically turns the outside light red.
- By the restraint, so the light only changes when the trailer is physically held.
The same published guide range applies across Northern Ireland; access, out-of-hours working and site conditions are confirmed at the free survey.
What does the free survey cover?
- Wall and steel structure for door, shelter and bumper fixings
- Yard gradient and the slope of the approach to the dock
- Asbestos register and any other site hazard information
- Scope to convert ground-level doors into docks or add lift tables
- Drainage on recessed or sloping dock approaches
- Bumper position and wear or damage on the dock face
Options to discuss
Restraint interlock package
Door, lights and vehicle restraint tied together so the door only opens once the trailer is held and the restraint only releases when loading is finished.
Full bay interlock panel
A single control panel that runs the door, leveller, restraint and shelter in the correct sequence, with indicators showing which step is active or blocked.
Planning, building control and safety law in Northern Ireland
In Northern Ireland, the CE mark (or CE with UKNI) applies to powered doors and dock equipment. We hand over the documentation for each item fitted in Cookstown, and because building control and planning are handled by the council, we check what applies at survey before any dates are set.
Questions about dock traffic lights and interlocks in Cookstown
Which building and safety rules apply to a site in Cookstown?
It depends on which UK nation the site is in. England and Wales use Building Regulations approval, Scotland uses building warrants and Northern Ireland uses building control approval from the council. Workplace safety is regulated by HSE in Great Britain and HSENI in Northern Ireland, and energy rules differ between nations. For your site in Cookstown, we check what applies at survey and design to it.
How do you price dock traffic lights and interlocks for a site in Cookstown?
Guide budgets for supply and fit are £650 to £3,400 per bay, excluding VAT. The figure moves with size, insulation, the operator, electrics, access, any pit or groundworks and out-of-hours working. Where levellers are involved, the guide assumes an existing, sound pit. After the free survey you receive a fixed written quote, and that is the price for the agreed scope.
Do you cover Cookstown for dock traffic lights and interlocks?
Yes. We take on dock traffic lights and interlocks for businesses in Cookstown and across County Tyrone. We survey the site, provide a fixed written quote and manage the installation, with specialist installation engineers working under our management. Visits are arranged in advance at a time that suits your operation, and the same single contact stays with the job through to handover.
Do traffic lights and interlocks need maintenance?
Yes. Lights, sensors and interlocks should be checked at each planned service visit, including testing the full sequence and confirming that steps attempted out of order are blocked. As part of the dock equipment they fall under PUWER, which requires work equipment to be maintained in a safe condition.
Can you add lights and interlocks across a whole dock in one project?
Yes. A whole-dock project is usually phased bay by bay so most doors stay in use, and every bay ends up on the same control standard. That consistency makes training easier for staff and drivers, and it simplifies servicing because every bay behaves in the same way.
Dock traffic lights and interlocks near Cookstown
Looking beyond Cookstown? Our pages for Magherafelt (10 miles), Dungannon (10 miles) and Portadown (19 miles) describe the same loading bay services and how to get in touch.
Other loading bay services in Cookstown
Full guide to dock traffic lights and interlocks · Everything we do in Cookstown
Send a few photos of the dock and a short description of the problem, and we will come back to you about your Cookstown site.