Aqara U200 or U600: Which Smart Lock Fits Your UK Front Door?

• uPVC or composite with a multipoint lock and a euro cylinder: the door the U600 is built for, and the U200 can work on it too
• Timber with a euro-cylinder mortice sashlock: a U200 candidate, as Aqara lists mortice locks with a suitable cylinder
• Timber with a rim nightlatch and a lever mortice deadlock: Aqara rules rim locks out for the U200, so only the U500 rim lock is left

• Lift-to-lock: you lift the handle to throw the hooks or bolts, then turn the key. You keep lifting the handle yourself with either Aqara lock, and Aqara's UK shop adds that on the U600 lifting only extends the bolts, so you then lock it with its button, the app or auto-lock
• Aqara puts the U600's condition in one line: 'If lifting your existing door handle does not engage the deadbolt, the U600 will not be able to operate that deadbolt'
• The U200 is listed for a 'UK Lift Lever Lock' at Aqara's 'Moderate' difficulty, and Aqara notes that the area for its adhesive on these locks is small
• Slam-shut multipoints, which lock themselves as the door closes, are not covered by Aqara for the U600, and Aqara calls the U200 unsuitable for self-locking doors, so this door is tested on site before you buy

• Emergency function: a key still opens the door from outside while another key sits in the inside
• The inside key is no more than 5 mm thick, with a handle no longer than 39 mm
• Turning the inside key or knob opens both the deadbolt and the latch
• The U200's fixing plate goes on with screws where the cylinder protrudes 3 mm or more, and with Aqara's adhesive where it protrudes less

• Backset of 35–70 mm and handle centres of 72–92 mm. Ferco handles at 70 mm and Fullex at 68 mm sit below that range
• A door 40–80 mm thick, and a handle that presses down less than 60° to open
• The multipoint body stays, but Aqara says fitting the U600 requires removing your cylinder, and asks you to check with your insurer first

• It replaces the nightlatch, on a door 20–60 mm thick, with the door and frame sitting flush
• Aqara sets its backset at 40–45 mm and needs one 50 mm hole and two 12 mm holes
• UK nightlatches are commonly set 60 mm from the edge, with 40 mm versions for narrow or glazed stiles, so on a solid door the 50 mm hole usually has to be cut new
• Aqara makes no BS 3621 claim for it, so the mortice deadlock below stays in use for your insurer

• Flat front doors onto a shared corridor or stair are normally self-closing fire doors, and GOV.UK's fire door guidance says a resident's changes to one should be made with the knowledge and agreement of the building's Responsible Person
• So JACK pros do not fit a U600 or a U500 on one at all: both change parts the fire rating depends on, and Aqara publishes no fire-test evidence for either
• A U200, which leaves the lock in place, is considered only over a cylinder that already has the emergency function, on a door that still closes and latches by itself, with the managing agent's written go-ahead
• Wandsworth Council's HMO fire-safety advice wants exit doors that occupiers can open from inside without a removable key, so a shared house never gets a key-only lock on the inside of its final exit door

• The whole door, outside and inside
• The door edge with the door open, showing the faceplate and any hooks or rollers
• The cylinder close up, with any star rating or Kitemark visible
• Three measurements: door edge to cylinder centre, spindle to cylinder centre, and the door's thickness

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.