- Location
- Welwyn Garden City, Hertfordshire
- Main postcode district
- AL8
- Nearby (straight line)
- Hatfield (3 miles), Hertford (6 miles) and St Albans (6 miles)
- Survey and quote
- Free, with a fixed written quote
A retractable dock shelter is a fabric shelter fixed to the building around a loading bay door, with flexible top and side curtains carried on a sprung or pantograph steel frame. When a trailer reverses in, the frame retracts and the curtains drape against the trailer's sides and roof, closing most of the gap while leaving the full width of the trailer opening clear for loading.
How does this suit sites in Welwyn Garden City?
Docks facing open ground in Welwyn Garden City can catch rain driven sideways into the bay, which a well-fitted retractable shelter helps keep out. Retail and e-commerce distribution centres in Welwyn Garden City with high trailer turnover need tough sprung-frame shelters that recover quickly after each departure.
Shelter sizing for a bay in Welwyn Garden City starts with measuring the door and wall and recording the tallest, lowest and widest trailers you receive.
Before anything is ordered, we visit your site in Welwyn Garden City for a free survey and then send a written quote with a fixed price. From that point we manage the installation, coordinating delivery, access and any other trades. Fitting is done by specialist installation engineers engaged and managed by us, at times that suit your operation, including out of hours where agreed. You get a tested installation, a demonstration for your team and the manufacturer documentation.
How do I size a retractable shelter for my trailers?
Size a retractable shelter to the largest trailer you receive, with a projection deep enough for opened trailer doors and the leveller lip, and curtains that still reach the smallest vehicles. The trailer mix sets almost every dimension.
- Width: wider than the trailer, so the side curtains drape along its sides rather than across the opening.
- Height: high enough for the tallest trailers, with a top curtain deep enough to reach the roof of the lowest.
- Projection: deep enough for the rear doors, folded back along the trailer sides, to sit inside the curtains.
- Curtain cut-outs: vertical slits let the side curtains wrap around hinges and rear fittings without tearing.
- Guide stripes: contrasting stripes on the curtains help drivers centre the trailer.
If your fleet is uniform, a seal may give a tighter fit. Our guide to shelters and seals sets out the trade-offs.
Why do trailer door hinges matter when choosing a shelter?
Trailer door hinges matter because the rear doors are opened and folded back along the trailer sides before reversing, and the shelter has to accommodate them. If the shelter is too shallow, the hinges and doors sit outside it, leaving gaps or snagging the curtains.
A shelter handles this better than a seal:
- its side curtains drape over the opened doors and hinges rather than pressing against them,
- the full width of the trailer opening stays clear, because nothing protrudes in front of the trailer's rear frame,
- slit curtains wrap around hinge blocks without tearing.
By contrast, a dock seal presses against the rear of the trailer, so gaps at the hinges can remain, and poorly sized side pads can intrude into the opening. That is why shelters are generally favoured for mixed fleets, where hinge positions and trailer widths vary from one vehicle to the next.
The same published guide range applies across England; access, out-of-hours working and site conditions are confirmed at the free survey.
What do we check at the survey?
- Age and condition of the equipment already in place
- Access for deliveries, cranes or lifting equipment during installation
- Gaps around trailers where heated or chilled air escapes
- Condition of any existing leveller pit, kerb angles and pit drainage
- Yard gradient and the slope of the approach to the dock
- Wind exposure at the dock, which affects door and shelter choice
Options to discuss
Rigid frame with long curtains
A fixed frame carrying long flexible curtains, useful where the trailer only needs to touch the curtains and the frame can stay clear of impact.
Adjustable top curtain
A top curtain that can be lowered or raised to suit the height of the trailers you receive, closing the gap above lower vehicles.
Which rules apply in England?
Sites in Welwyn Garden City 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 about retractable dock shelters in Welwyn Garden City
Can you work alongside our main contractor on a new build in Welwyn Garden City?
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.
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 Welwyn Garden City, 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.
Will you deal with building control and planning for a project in Welwyn Garden City?
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.
Can I replace just the curtains on an old shelter?
Yes, if the frame and fixings are sound, new top and side curtains can be fitted to an existing shelter, which is often the most economical way to restore it. The frame and springs are checked first, because new curtains on a failing frame will not last. This is handled as a repair, with the visit price agreed beforehand.
Can a shelter be fixed to a cladded wall?
Yes, but cladding on its own is not usually strong enough to carry a shelter. We fix through to the building's steel frame behind the cladding, or use a steel subframe or spreader plates to spread the load, and confirm the method after inspecting the wall.
Retractable dock shelters near Welwyn Garden City
The same survey, quote and repair service is available in towns around Welwyn Garden City, such as Hatfield (3 miles), Hertford (6 miles) and St Albans (6 miles).
Other loading bay services in Welwyn Garden City
Full guide to retractable dock shelters · Everything we do in Welwyn Garden City
Send a few photos of the dock and a short description of the problem, and we will come back to you about your Welwyn Garden City site.