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How to fit an electronic door lock

Updated: 16 October 2026

The screwdriver is out because a listing said fifteen minutes or no drilling. Before you cut anything, measure the mechanism you already have, and stop if the numbers do not match. This is how to fit an electronic door lock as four jobs: a multipoint handle, a euro-cylinder swap, a 60 mm nightlatch keypad, and a fingerprint handle. It is not a 12 V wiring guide. The captures are amazon.co.uk as of 15 October 2026, plus Nuki’s published compatibility limits. The Products Compared editorial team did not fit these locks on a test door. We may earn a commission if you buy through our links. The full set is on the [electronic door lock comparison](/hub/electronic-surveillance/electronic-door-lock).

The screwdriver is out because a listing said fifteen minutes or no drilling. Before you cut anything, measure the mechanism you already have, and stop if the numbers do not match.

Our top picks

NUKI Nuki Smart Lock Ultra, euro cylinder

Best overall

NUKI Nuki Smart Lock Ultra, euro cylinder
9.0/10about £309.00
View offer
Yale Yale Keyless Connected, black, 60 mm

Best value

Yale Yale Keyless Connected, black, 60 mm
8.2/10about £68.00
View offer
Ruveno Ruveno RU-001, black, multipoint handle

Alternative

Ruveno Ruveno RU-001, black, multipoint handle
8.2/10about £199.99
View offer
On this page
  1. 1.Measure the door before you trust no drilling
  2. 2.Four different fits, not one screwdriver job
  3. 3.Where the listing and the reviews disagree
  4. 4.When you stop and call a locksmith or an electrician

Measure the door before you trust no drilling

Write the numbers down in millimetres before you order. Backset is the distance from the front face of the latch faceplate to the centre of the spindle, square to the door edge. Also record thickness, handle-to-cylinder centres, which way the door opens, and whether the handle must lift before the points throw. A generic 45 mm or 57 mm mortice figure will mis-measure this set. The Yale title is 60 mm. The Ruveno mortise is 85 mm between centres and 35 mm to the door edge. If those numbers do not match, stop.

Four different fits, not one screwdriver job

Ruveno will not fit if the handle cannot lift, and the mortise in the box is 85 mm by 35 mm. Simpled’s EF-SP is for most existing handle-up mechanisms. If you cannot watch the hooks throw, stop. A Nuki Smart Lock Ultra is a cylinder swap. Inside length is limited to 68 mm from the retaining screw to the inner plate, outside to 55 mm. Inward-opening doors need more than 30 mm from the keyhole to the frame and the handle. Outward-opening doors need more than 40 mm to the frame and more than 30 mm to the handle. The motor does not lift the handle. A UK oval cylinder is not named. The Yale keypad needs a 60 mm nightlatch already fitted or bought separately. La Macaza and both DHEISHA listings name 30–55 mm, and the TEKXDD names 35–55 mm. Outside that band, you stop.
NUKI Nuki Smart Lock Ultra, euro cylinder

Testsieger

NUKI Nuki Smart Lock Ultra, euro cylinder
9.0/10about £309.00
View offer

Where the listing and the reviews disagree

No drilling is a claim with a limit. DHEISHA reviews still mention a hole of about 53–54 mm and a chisel. A new hole that would void the door warranty is a stop. The Yale photos can suggest the nightlatch is in the box. The included line says otherwise. Four AA cells are in the Yale box, and four AAA cells are not in the fingerprint-handle boxes. Simpled’s power line is blank on this capture. The Consumer Rights Act 2015 gives a short-term right to reject, normally 30 days, if the lock is not as described.

When you stop and call a locksmith or an electrician

Stop if the door is a fire door or an escape route, if you cannot see how the multipoint throws, or if the backset, thickness, or cylinder length does not match. Stop if you would need a new mains circuit or a fire-alarm interface. Approved Document P treats 12 V as extra-low voltage, and a new mains circuit is notifiable.

Common questions

What do I measure before I order an electronic door lock?
Measure backset from the faceplate face to the spindle centre, square to the door edge, in millimetres. Also write down thickness, handle-to-cylinder centres, which way the door opens, and whether the handle must lift before the points throw. A 45 mm or 57 mm mortice figure from a general article is not the Yale 60 mm nightlatch and not the Ruveno 85 mm by 35 mm mortise.
Does no drilling mean I will not cut the door?
Only for the lock that states it, and only if the door already matches. Nuki’s no-drill line is a cylinder change, which is the manufacturer’s claim of about 15 minutes. Fingerprint listings also say no drilling, and DHEISHA reviews still describe a hole of about 53–54 mm and a chisel. A new hole that voids a warranty is a reason to stop.
How do I fit a Nuki Ultra without a drill?
You swap in the included universal euro cylinder and mount the motor on the inside, within Nuki’s published lengths: inside no more than 68 mm, outside no more than 55 mm, with the frame clearances above. The motor turns the cylinder. It does not lift a multipoint handle. A UK oval cylinder is not named on Nuki’s compatibility guide. If your cylinder is longer than those limits, you do not force it.
The Yale title says 60 mm nightlatch. Is the nightlatch in the box?
Not on the included line. That line lists the lock, a key tag, a key card, four AA batteries, and a quick guide. Confirm a 60 mm-backset nightlatch is already fitted or order one separately. The app needs a Yale Access Module as well. One 2026 review said the printed master code no longer worked.
Can I fit a multipoint smart handle if I cannot see the hooks move?
No. If you cannot watch the points throw when the handle lifts, that is a locksmith job, not a Saturday fitting. Ruveno’s own listing says it will not fit when the handle cannot lift. Simpled is for handle-up mechanisms. Guessing at a hidden gearbox is how a uPVC door gets damaged.
Is a new 12 V mains supply part of this fitting job?
No. A new mains circuit is notifiable under Approved Document P and belongs to an electrician. 12 V itself is extra-low voltage. This page does not describe how to wire a bolt. If the product you bought unlocks when power is removed, treat that as a different lock from a house final exit.

Related pages

Electronic door lock buying guide

Electronic locks for uPVC multipoint doors

Fail-safe electric door locks

Electronic door locks

Best electronic door lock: one listing for your door

Sources

Public UK sources used for standards and safety context, last checked on 16 October 2026. Prices and star ratings are the amazon.co.uk fields in this category.

  1. Secured by Design: locks and associated hardware (retrieved 16.10.2026)
  2. BSI Knowledge: BS 3621:2017+A1:2024 (retrieved 16.10.2026)
  3. DHF TS 007 cylinder and handle star ratings (retrieved 16.10.2026)
  4. West Yorkshire Police: euro-cylinder advice (retrieved 16.10.2026)
  5. GOV.UK: consumer connectable product security (retrieved 16.10.2026)
  6. GOV.UK: Fire safety, Approved Document B (retrieved 16.10.2026)
  7. Approved Document P (2013), electrical safety (retrieved 16.10.2026)
  8. Consumer Rights Act 2015, section 22 (retrieved 16.10.2026)