- Location
- Greenock, Renfrewshire and Inverclyde
- Main postcode districts
- PA15 and PA16
- Nearby (straight line)
- Helensburgh (4 miles), Dunoon (6 miles) and Vale of Leven (7 miles)
- Survey and quote
- Free, with a fixed written quote
A vehicle restraint is a device at a loading bay that physically holds a trailer against the dock until it is safe to leave. In the UK most systems act on the rear wheel, either as a powered wheel-based restraint or a sensor wheel chock. Restraints guard against early drive-away and trailer creep, and are usually interlocked with the door and dock traffic lights.
How does this suit sites in Greenock?
Third-party hauliers visiting sites in Greenock may not know each site's procedures, so a restraint that holds the wheel removes reliance on every driver following instructions. New-build distribution sheds in Greenock can have restraint rails and ducting planned into the yard slab from the start, which is simpler than cutting them in later.
Busy cross-dock and parcel operations in Greenock with frequent trailer swaps have more chances for an early drive-away, which is where a physical restraint adds real protection.
Our part of the job in Greenock is to survey, quote and manage; the fitting itself is done by specialist installation engineers working under our management. The survey and the written quote are free. Once the fixed price is accepted, we agree dates that work around your deliveries and shifts, including out-of-hours working where needed. Every installation is tested before handover, and you receive the documentation for each item fitted.
What is trailer creep and how does a restraint stop it?
Trailer creep is the gradual movement of a parked trailer away from the dock, caused by forklifts braking and accelerating as they drive on and off the trailer bed. Each movement pushes the trailer forward slightly, and over a full load the gap can grow.
Creep is more likely when:
- the trailer is uncoupled from its tractor unit and resting on its landing legs;
- air suspension or brakes have not been set correctly by the driver;
- forklifts are heavy, fast or carrying dense loads such as drinks or building materials;
- the yard falls slightly away from the building.
As the trailer moves, the leveller lip can lose its bearing on the trailer bed, and in the worst case the lip slips off with a forklift on it. A wheel-based restraint holds the wheel against the rail or chock, so the trailer cannot travel forward however many times a forklift drives on and off.
Wheel-based or hook restraint: which suits UK trailers?
Wheel-based restraints and sensor wheel chocks suit most UK trailers, because they act on the rear wheel rather than on the back of the vehicle. Hook restraints, which catch the rear impact guard (sometimes called an ICC bar), are common elsewhere but suit fewer UK fleets.
- Wheel-based restraint: a steel guide rail fixed to the yard, with an arm or chock that moves against the rear wheel, either powered or pushed into place by the operative. It works regardless of tail lifts or underrun guard design.
- Sensor wheel chock: a heavy chock placed in front of the wheel, with a sensor or parking station that tells the dock controls it is in position. Lower cost and minimal groundwork, but it relies on someone placing it each time.
- Hook restraint: mounted on the dock face and hooking the rear guard. UK and European trailers vary widely at the rear, and tail lifts often get in the way, so this type needs checking against your actual fleet.
The same published guide range applies across Scotland; access, out-of-hours working and site conditions are confirmed at the free survey.
What does the free survey cover?
- Condition of any existing leveller pit, kerb angles and pit drainage
- How often each door cycles during a typical shift
- Escape routes and pedestrian doors close to the bay
- Control positions, isolators and any existing interlocks
- Whether planning, building control or a building warrant may be needed
- Working hours, shift patterns and windows for out-of-hours work
Options to discuss
Manual wheel-based restraint
The same rail-mounted principle with the restraint pushed into position by the operative. Lower cost than a powered unit, with a sensor to confirm engagement to the controls.
Sensor wheel chock
A heavy-duty chock with a sensor or parking station that tells the dock controls when it is in place. Minimal groundwork and suited to retrofit on existing bays.
Which rules apply in Scotland?
HSE is the workplace safety regulator in Scotland. At a loading bay in Greenock, doors need to satisfy regulation 18 of the Workplace (Health, Safety and Welfare) Regulations 1992, dock equipment must be kept safe under PUWER, and drivers must be prevented from pulling away too early. We check what applies at survey.
Questions about vehicle restraints in Greenock
Is the site survey in Greenock free?
Yes. For new installations, replacements, upgrades, conversions and complete bays, the site survey and written quote are free and come with no obligation. The survey lets us measure the openings, check the dock and structure, and understand how the bay is used, so the quote reflects your site. Repair and servicing visits are different: they are chargeable, with the price agreed before anyone attends.
How long does installation take at a site in Greenock?
It depends on the equipment, the number of bays, the condition of the dock and whether any building or electrical work is needed. We agree a programme with you after the survey, setting out which bays are out of use and when. Larger jobs are usually phased so that part of the dock stays open, and out-of-hours working can be arranged.
Can you work alongside our main contractor on a new build in Greenock?
Yes. For new warehouses and fit-outs, we can supply and install the dock package as part of a wider project, working to the main contractor's programme, site rules and permits. We will need drawings, dock levels and the programme, and we coordinate pit details, power supplies and door openings with the relevant trades before installation begins.
What happens if a powered restraint loses power?
Powered restraints are normally designed with a manual release so a trailer is not trapped on the bay if power is lost. Your site procedure should say who is allowed to use the release and what checks they make first. We explain the release method at handover.
Can a vehicle restraint be fitted to an existing bay?
Yes, restraints are commonly retrofitted to existing bays. The main questions are whether the yard concrete in front of the bay is sound enough to anchor a rail, how cables will reach the dock controls, and whether the existing door and leveller panels can accept interlocks. Sensor chocks are often chosen where groundwork needs to be kept to a minimum.
Vehicle restraints near Greenock
Nearby places we cover, measured from Greenock, include Helensburgh (4 miles), Dunoon (6 miles) and Vale of Leven (7 miles). Ask if your own town is missing.
Other loading bay services in Greenock
Full guide to vehicle restraints · Everything we do in Greenock
If a loading bay in Greenock needs attention, call us or send photos and details online.