A dock seal is a set of fabric-covered foam pads fixed to the building around a loading bay door, usually a head pad and two side pads. When a trailer reverses in, its rear end presses into the foam, which compresses to close the gaps around the trailer body. Seals give a very tight fit but work best when the trailers using the bay are a consistent size.
How does this suit sites in Hertfordshire?
Hygiene-sensitive sites in Hertfordshire, such as food processors, can use dock seals to reduce the gaps through which dust and pests might enter during loading. A dedicated chilled fleet serving a site in Hertfordshire can be sealed closely with foam pads, at lower cost than fitting an inflatable shelter.
Own-fleet distribution sites in Hertfordshire, where the same trailers arrive day after day, are well suited to foam dock seals and the tight fit they give.
We keep the process simple for sites in Hertfordshire. A free survey tells us what the dock needs; a fixed written quote tells you what it will cost and what is included. We then organise the installation, with specialist engineers under our management and a programme agreed around your shifts. Night and weekend work is available by arrangement. Before we leave, the new equipment is tested, demonstrated and handed over with its documentation.
What do workplace transport rules mean for a sealed dock?
A sealed dock still needs safeguards against a trailer leaving early, and the seal, bumpers and other dock equipment must be kept in safe working order. In Great Britain the regulator is HSE; in Northern Ireland it is HSENI.
- Drive-away: HSE workplace transport guidance (HSG136) and the HSE loading factsheet call for safeguards against drivers driving away too early, including traffic lights, vehicle or trailer restraints, or the person in charge keeping keys or paperwork until it is safe.
- Trailer creep: because the trailer is pressed into compressed foam, it can ease forward during forklift loading. Restraints and well-set bumpers help keep it in position.
- Equipment duties: a dock seal forms part of the loading bay's work equipment, so the general duty under PUWER 1998 in Great Britain, or PUWER (Northern Ireland) 1999, to keep equipment suitable and maintained applies.
Torn covers and crushed pads can hide damage to the fixings and wall behind, so seals belong in planned inspections of the dock.
When is a dock seal a better choice than a shelter?
A dock seal is a better choice than a shelter when the trailers using a bay are consistent in size, the dock height suits them, and the tightest practical seal matters. Mixed fleets are usually better served by a shelter.
- Consistent fleets: dedicated vehicles or regular hauliers using the same trailer type.
- Temperature control: chilled or heated buildings where gaps around the trailer are costly.
- Security and hygiene: fewer gaps for pests, dust and unauthorised access during loading.
- Budget: seals cost less than inflatable shelters for a close fit.
The trade-offs are that seals can leave gaps at trailer door hinges, side pads can intrude into the trailer opening if poorly sized, and the covers wear from rubbing. If your trailers vary, compare our retractable dock shelters before deciding, as they leave the full opening clear.
Towns we cover in Hertfordshire
We cover dock seals throughout Hertfordshire, and the towns below each have their own page. If yours is not listed, get in touch anyway.
- Watford
- Hemel Hempstead
- Stevenage
- St Albans
- Welwyn Garden City
- Cheshunt
- Hatfield
- Bishop's Stortford
- Borehamwood
- Hitchin
- Hoddesdon
- Letchworth Garden City
- Harpenden
- Bushey
- Hertford
- Rickmansworth
- Potters Bar
- Berkhamsted
- Ware
- Royston
Budget range for supply and fit. The written quote after a free survey is the fixed price. All guide prices.
What do the rules in England mean for the work?
Sites in Hertfordshire fall under the rules for England. Structural changes such as forming a new opening or a dock leveller pit may need Building Regulations approval, and external structures such as loading houses, canopies or new dock approaches can need planning permission from the local planning authority. We check what applies at survey and build any approvals into the plan.
Questions
What details do you need from us to quote for dock seals?
To get started, send the site address in Hertfordshire, 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.
Do you remove and dispose of the old equipment?
Yes, where it is part of the scope. When we replace doors, levellers, shelters or seals at a site in Hertfordshire, removal and disposal of the old equipment can be included and is itemised in the quote, so it is clear what is covered. If anything should be kept, such as a frame or motor that is still serviceable, we agree that at survey.
Can dock seals handle trailers of different heights?
Only within a limited range. A fixed head pad seals well on trailers of one height but leaves gaps over lower ones and can be crushed by taller ones. A seal with a flexible curtain head copes better with varied heights, and for very mixed fleets a shelter is usually the better option.
Do dock seals block access to the trailer?
They can if they are poorly sized. Side pads that sit inside the line of the trailer body intrude into the opening and get in the way of pallets and forklifts. Correctly sized and tapered pads compress against the rear corners and leave the opening clear.
Other services in Hertfordshire
Full guide to dock seals · All loading bay services in Hertfordshire