Why the alcove is the obvious spot — and the trap

Alcoves either side of a chimney breast are the hardest-working square footage in a British home. They take bookshelves, desks, bar carts and, increasingly, the tangle of boxes that keeps a household connected: the broadband hub, the mesh node, the power adaptor that never quite fits a standard socket strip. Tucking all of that into an alcove keeps it out of sight, which is exactly what most of us want.

The trap is that an alcove is usually flanked by solid brick, a chimney breast and a side wall. Seal a router into a closed cupboard in that space and you have made a small oven, plus a Faraday cage of sorts. The two things that matter most — airflow and signal — are the first to suffer. Concealment only works if the equipment can still breathe and broadcast.

Measure the kit before you build or buy anything

Before you commit to a shelf, a box or a basket, get the tape measure out and be honest about the dimensions. Modern hubs are deceptively wide once the aerials and cables are attached.

• Router footprint: measure width, depth and height, then add at least 50mm of clear space on every side, including above.
• Aerials: if they are fixed upright, allow another 100mm of headroom so nothing is squashed flat against a shelf.
• The power adaptor: these run warm and are bulkier than the plug itself. Note where the socket is and whether the adaptor will sit inside or outside the enclosure.
• Incoming cable: find where the fibre or coaxial feed enters the room. The router needs to reach it without a strained bend.
• Access: you will need to reach the reset button and see the status lights occasionally, so leave a route in.

Make a small box that actually ventilates

The neatest solution for a fitted alcove is a low MDF or plywood box built to sit on a shelf, with ventilation designed in rather than hoped for. Use 18mm sheet material, keep the box open at the back if the alcove wall allows, and drill a grid of 25mm holes across the base and along the upper part of the back panel. Warm air rises, so low-level intake and high-level exhaust works far better than holes all at the same height.

Aim for the total vent area to be roughly the size of the router's own footprint. If the front is a door, choose cane webbing, a slatted panel or a perforated hardboard sheet rather than a solid slab — cane webbing looks lovely against period joinery and lets air through freely. Fix the door with small magnetic catches, and add a discreet finger pull. Avoid metal enclosures, metal mesh and foil-lined linings, all of which interfere with Wi-Fi.

If DIY joinery is not for you, a ready-made slatted box or a wooden crate on its side, stained to match the alcove, does the same job for a fraction of the effort.

Baskets, cane and fabric for a softer cover-up

Where the equipment is sitting on a shelf at low level, an open-weave basket is often the easiest hide of all. A seagrass or rattan belly basket placed upside down over the hub gives a warm, textured look that suits a Victorian terrace or a cottage. Check the weave — you want visible gaps, not a tight, sealed finish.

For a lidded option, choose a basket with a slightly domed lid and trim the base out so air can move underneath, or sit the whole thing on four small cork or rubber feet. A fabric-covered box with a couple of eyelets punched into the back works well for hiding the cable entry point. Line nothing with foil. Do not use glass-fronted cupboards, which trap heat like a greenhouse.

Cable control that survives everyday life

Cables are what make a hidden setup look unfinished. A little discipline here pays off every time you hoover or move furniture.

• Clip, don't loop: screw-in P-clips or good adhesive clips keep the power lead and the data cable running in a clean line down the inside edge of the alcove.
• Trunking: 16mm x 25mm self-adhesive trunking takes two cables comfortably and can be painted to match the wall.
• Ties: use hook-and-loop ties rather than zip ties, so you can add or remove a cable without cutting anything.
• Service loop: leave 300mm of slack behind the box so you can pull the hub forward without unplugging it.
• Label the plugs: a strip of masking tape and a pen saves a lot of guessing at the socket end.

Protect signal strength and keep an eye on heat

Once everything is in place, test it properly rather than assuming. Walk to the rooms that matter — the back bedroom, the kitchen extension, the garden — and check the connection on a phone or laptop. If the alcove is deep, bring the hub forward so its front edge sits flush with, or slightly proud of, the chimney breast.

Keep 300mm of clear space between the router and anything metal, mirrors, televisions, cordless phone bases, speakers and fish tanks. Do not stack it on top of a games console or set-top box; two warm devices in one enclosed space is asking for trouble.

Finally, check the heat. After an hour of normal use, rest your hand on the top of the box and on the router itself. Warm is fine. Uncomfortable to hold means you need more ventilation — add another row of holes, lift the box on feet, or leave the door ajar. A concealed setup should be invisible, quiet and cool, and a ventilated box, tidy clips and a well-chosen basket will get you there.