A telescopic-lip dock leveller is a hydraulic pit leveller whose front lip slides forward out of the platform, rather than swinging on a hinge, and can be extended by a controlled amount onto the trailer bed. Telescopic lips commonly extend 500 to 1,000 mm, which lets operators reach over tail lifts, place the lip between pallets and load the last row in a trailer.
Is this right for your site in County Londonderry?
Where docks in County Londonderry have deep bumpers that hold trailers away from the edge, a telescopic lip can bridge a gap a swing lip would struggle to cover. Before recommending a lip extension for a dock in County Londonderry, we record the trailers that actually arrive, including tail lifts and rear overhangs.
A container-handling operation in County Londonderry can benefit from a telescopic lip, as container floors and chassis heights vary more than standard trailers.
For telescopic-lip dock levellers in County Londonderry, 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.
Can a telescopic leveller replace a swing-lip unit in the same pit?
Often yes, a telescopic-lip leveller can replace a swing-lip unit in the same pit, provided the pit is square and deep enough and the edge steel is in good condition. Some telescopic units need a little more depth for the lip mechanism, so we measure carefully at survey.
A typical installation:
- The bay is closed and the old leveller isolated, lifted out and removed.
- The pit is cleaned and measured, and any edge steel repairs carried out.
- The new unit is set in, levelled and fixed to the pit steel.
- The power pack, control panel and lip controls are connected and interlocks wired.
- The platform and lip are tested through their full travel.
You will need to provide a clear bay, access for lifting equipment and a suitable power supply, typically three-phase. Installation commonly takes one to two working days per bay once the pit is ready.
Why does a telescopic-lip leveller cost more than a swing-lip unit?
A telescopic-lip dock leveller typically costs £6,800 to £11,800 per leveller, excluding VAT, supply and fit, assuming an existing, sound pit. It costs more than a swing-lip unit because the lip slides in its own guides inside the platform, which means more steel, a longer lip and more involved hydraulics and controls.
Within the range, the price depends on:
- Lip extension: a longer reach needs a longer lip and stronger guides.
- Platform length and width: longer platforms give gentler gradients across mixed trailer heights.
- Capacity: higher ratings for heavy loads or large forklifts.
- Insulation: insulated platforms and pit seals for chilled and frozen docks.
- Controls: automatic return, interlocks and links to restraints and traffic lights.
New pits, pit repairs and groundworks are priced separately after survey, and the written quote is the fixed price. We often quote both lip types side by side, so you can see whether the extra flexibility justifies the cost on each bay.
Towns we cover in County Londonderry
Below is a list of towns in County Londonderry for telescopic-lip dock levellers. Each page explains our approach for sites in that town.
Budget range for supply and fit. The written quote after a free survey is the fixed price. All guide prices.
Which rules apply in Northern Ireland?
Energy requirements for non-dwellings in Northern Ireland are set by Technical Booklet F2. For new or replacement loading bay doors in County Londonderry, we confirm the figure that applies to your project and check what applies at survey, rather than working to rules from elsewhere in the UK.
Questions
Will you deal with building control and planning for a project in County Londonderry?
We check at survey whether the work is likely to need approval. Forming a new opening or dock pit may need Building Regulations approval, a building warrant or building control approval, depending on the nation, and external structures such as loading houses can need planning permission. Where approval is needed, we explain what is involved, work with your designer or agent, and build it into the programme.
What details do you need from us to quote for telescopic-lip dock levellers?
To get started, send the site address in County Londonderry, the number of bays or openings, approximate sizes, and photos of the dock from inside and outside. Tell us what vehicles you load, what goods you handle and any temperature requirements. Drawings help on new builds. We then arrange the free survey and confirm the details before the written quote is issued.
What overlap should the lip have on the trailer bed?
The lip should rest on the trailer bed with the overlap the manufacturer specifies, so it cannot slip off as the trailer moves under load. Extending further than needed adds no benefit. We show dock staff what a correct overlap looks like at handover.
Can telescopic and swing-lip levellers be mixed on one dock?
Yes, and many sites do. Fitting telescopic levellers on the bays that receive tail-lift vehicles or need end loading, and swing-lip units on the rest, keeps costs down while covering every vehicle type. Clear bay signage helps drivers reverse onto the right one.
Other services in County Londonderry
Full guide to telescopic-lip dock levellers · All loading bay services in County Londonderry