Aqara Switch, Socket and Relay Installation in London

• Light Switch H2 EU, one-gang (WS-K07) or two-gang (WS-K08); the 'UK exclusive version' on Aqara's UK shop is the same EU switch with an extra dark grey button
• Dimmer Switch H2 EU (KD-R01), Shutter Switch H2 EU and the Display Switch V1 EU with its own screen
• Smart Wall Switch H1 EU, in No Neutral (WS-EUK01/02) and With Neutral (WS-EUK03/04) models

• Smart Wall Switch H1: within 30 mm
• Light Switch H2: 30 mm, on a switch 86 x 86 x 45 mm overall
• Dimmer Switch H2: 34.6 mm, with a 40 mm minimum box depth given on Aqara's Amazon UK listing

• H1 No Neutral: made for that wiring, with a minimum load of 3 W of LED or 16 W of fluorescent lighting
• H2 and Dimmer H2: work either way; without a neutral the H2 needs at least 5 W of LED, and Aqara gives the dimmer a minimum load of 4 W or 9 W depending on how it is set up
• H1 With Neutral, Shutter Switch H2, Display Switch V1 and Touchscreen Dial V1: neutral required

• Dual Relay Module T2 (DCM-K01): needs live and neutral and, by Aqara's advice, a box around 60 mm deep; its 10 A is shared by both channels, with LED loads held to 1 A or 250 W
• Single Switch Module T1 No Neutral: no minimum load, up to 1250 W resistive, kept away from hot or luminous parts in a ceiling
• In a ceiling, a relay goes in an enclosure behind a hatch or removable fitting, because the wiring regulations keep connections accessible unless they sit in a maintenance-free box marked MF
• A JACK pro never fits the T2 on a DIN rail inside the consumer unit: that is a registered electrician's job

• WP-P09E has one 20 W USB-C port and WP-P09D two, giving 30 W from one or 15 W shared; both are rated 230–250 V and 13 A and measure 146 x 86 x 38.4 mm
• Aqara's UK shop asks for a box at least 25 mm deep, with a 10 mm spacer supplied for shallower ones; per-socket energy monitoring needs Zigbee mode
• Swapping an existing socket is a replacement and not notifiable; JACK keeps sockets at least 3 m from a bath or shower tray, following the note to Approved Document P's Diagram 2

• A like-for-like switch swap is a replacement, which is not notifiable even in a bathroom, though JACK does not take on fixed wiring inside bathroom zones
• Lighting with no earth wire suits the H2's plastic front, which has live, neutral and switched-live terminals only; Aqara does not say whether the H1's metal frame needs earthing
• The circuit is switched off at the fuse board first, since a smart switch is not an isolator

A vetted pro prices your Aqara job from the models and your photos, and the JACK app shows that fixed price before you book.

What the job touches moves the price more than the device does. Pairing a hub, fixing sensors, clipping a Curtain Driver E1 onto a rail or fitting radiator thermostat heads is set-up work. A smart lock is locksmith work on the door. An H1 or H2 switch, a Dual Relay Module T2 or a 230 V blind motor is mains work on an existing circuit, priced for isolating, connecting and testing.

The home comes next: a multipoint door that needs adjusting before a lock goes on, a bell transformer too weak for the doorbell, a PoE cable through solid brick. Where a job needs a second pair of hands, your pro can ask another pro on JACK to help through the Pro2Pro feature. Several devices, Aqara or other brands, go on one booking for one fixed price.

You buy the Aqara products; JACK does not sell them. Accessories the job needs, such as a replacement cylinder, a deeper back box, a 12 V plug-in supply or a PoE injector, are agreed and added at cost before you book, and so is parking where it has to be paid for. Prefer to pay for time? As a guide, hourly hire is typically £45–£95 per hour for smart home work, £55–£110 for electrical work and £60–£130 for locksmith work, and a full-day handyman booking is a flat £350–£400 for up to 8 hours on site.