Smart Lock Installation Costs UK — What to Charge to Fit a Smart Door Lock in 2026

What to Charge to Fit a Smart Lock

Smart lock work splits into two broad jobs: labour-only fitting where the customer has bought the device themselves, and supply-and-fit where you provide the lock too. The price also depends heavily on the door type and how much adaptation it needs. Here are the main scenarios with current UK pricing.

Retrofit Smart Lock onto an Existing Euro-Cylinder Door (Labour Only)

The most common job is fitting a customer-supplied retrofit smart lock to an existing UPVC or composite door. These devices replace or sit over the existing euro cylinder and thumbturn — the lock motorises the internal thumbturn or swaps in a smart cylinder, so the door still throws its existing multipoint mechanism. No new mortice work is needed, and most are a screwdriver-and-app job for an experienced installer.

Where the existing cylinder is suitable and the door is in good order, this is typically a 45-minute to 90-minute job once you include app pairing and a quick handover with the customer.

• Retrofit fit, customer-supplied device: £60–£120 labour

Supply-and-Fit with a Mid-Range Smart Lock

Many customers would rather you specify and supply the lock — they trust your judgement on which device is reliable and secure, and it saves them researching. A mid-range retrofit smart lock from a recognised brand sits around £100–£250 at trade. Bundle device, labour and a sensible margin into a single supply-and-fit price.

• Mid-range device: £100–£250
• Supply-and-fit total: £180–£400

Quote supply-and-fit as a single figure rather than itemising the device markup. Customers are paying for the outcome — a working, secure, app-controlled door — not for a parts-and-labour breakdown that invites them to price-shop the lock online.

Motorised Locks, Smart Multipoint and Doors Needing Adaptation

At the top end are motorised smart locks that physically drive the bolt, full smart multipoint solutions for UPVC and composite doors, and jobs where the door needs a new euro cylinder or handle to suit the smart device. Add app, Wi-Fi and bridge setup — and sometimes a firmware update or troubleshooting a flaky home network — and the time involved climbs quickly.

• Motorised lock, smart multipoint, or door needing a new cylinder/handle, plus full app/Wi-Fi/bridge setup: £250–£500+

On these jobs the device itself can be £200–£400, and you may need to source a matching euro cylinder of the correct size and security rating. Always measure the cylinder (internal and external dimensions from the centre screw) before ordering — a smart cylinder that is too short or too long is a wasted visit.

Smart Locks on Nightlatch and Mortice Doors

Timber doors with a rim cylinder — typically a nightlatch on a front door — are a different proposition. Many smart deadbolts are designed for the US/Canadian market and assume a bored cylindrical hole and a tubular latch, which UK timber doors often don't have. Fitting a smart deadbolt or smart rim lock to a British timber door can need more adaptation: a new bore, an adapter plate, or in some cases recommending a different device entirely.

Survey these doors carefully before quoting. A timber door with a traditional mortice deadlock and a separate nightlatch may need the smart lock fitted to the rim cylinder only, leaving the mortice as a mechanical backup — which is often the most secure and most reliable arrangement anyway. Price these jobs toward the upper end and allow extra time for fitting and finishing.

Add-Ons and Upsells

Most of the margin in smart lock work comes from the extras. Once you're on site and the customer is invested in keyless entry, these add-ons are easy sells and quick to fit.

• Wi-Fi bridge / hub: Many smart locks talk to your phone over Bluetooth only. A Wi-Fi bridge or hub gives remote access from anywhere — checking the door is locked, granting access while away. Add £40–£90 for the bridge plus setup.
• Keypad or fingerprint reader: A wireless keypad or biometric reader lets the customer enter without a phone or key. Add £50–£120 supply-and-fit depending on the device.
• Video doorbell or smart-home integration: Linking the lock to a video doorbell, or into Apple Home, Google Home or Alexa, is a setup-and-configuration job. Charge for the time — £40–£100 on top.
• Configuring multiple user codes: Setting up codes or app access for family members, cleaners and tradespeople, and showing the customer how to manage them, is a genuine value-add. Build it into the price or charge per visit.

The Main Types of Smart Lock

Knowing the device types helps you specify correctly and avoid the wrong lock on the wrong door — which is the single most common cause of a failed smart lock install.

• Retrofit cylinder / thumbturn locks: The lock sits over or replaces the internal thumbturn, or swaps in a smart euro cylinder. Ideal for UPVC and composite doors with a multipoint mechanism. Quickest to fit.
• Motorised deadbolts: The lock motor physically drives the bolt. More common on timber doors with a deadbolt or rim cylinder. Heavier on battery and needs careful alignment.
• Smart multipoint for UPVC / composite: A motorised solution that throws the full multipoint locking strip. The most secure option for modern doors, but the most involved to fit and the most expensive.
• Access method — keypad vs app vs fingerprint vs fob: Most locks offer a combination. Apps suit tech-confident customers, keypads suit households without smartphones, fingerprint is fast and popular, and fobs suit older users and children. Match the method to who actually lives in the house.

Battery Life, Mechanical Override and Power

Almost all retrofit smart locks are battery powered — typically AA cells or a rechargeable pack — and run for 6 to 12 months between changes depending on usage and whether a Wi-Fi bridge is keeping the radio busy. Because they are battery powered with no mains wiring, smart lock fitting generally does not fall under Part P of the Building Regulations, which covers fixed electrical installation. If a job ever does involve mains wiring (a hard-wired hub or a mains-powered access controller), treat the electrical side under the normal Part P rules.

The single most important thing to set up and explain is the mechanical key or override. A battery will eventually go flat, firmware can glitch and Wi-Fi can drop — the customer must never be locked out. Make sure the door retains a working mechanical key or override, hand the keys over, and tell the customer to keep one accessible. Many locks also support an emergency external battery terminal or USB jump — show the customer where it is.

Security, British Standards and Insurance

A smart lock is only as secure as the cylinder it relies on. On a UPVC or composite door, where the smart lock motorises an existing euro cylinder or thumbturn, the physical security still comes from that cylinder — so it must be a high-security, anti-snap rated cylinder. Keep or fit a 3-star (TS007) or Sold Secure Diamond anti-snap cylinder where the smart lock depends on it. Fitting a smart lock over a cheap, snappable cylinder leaves the door vulnerable to lock snapping regardless of the smart features.

Insurance is the point customers most often overlook. Many home insurance policies require door locks to meet BS3621 (for timber doors) or an equivalent standard, and some specify particular cylinder ratings for UPVC doors. Replacing a compliant lock with a smart device that does not meet the policy requirement can invalidate cover. Advise customers to check their policy wording, and where possible specify a smart solution that retains the British Standard or anti-snap rating of the original lock. Document the cylinder rating you fitted in your job notes and on the invoice.

What Affects the Price

Smart lock quotes go wrong when the installer prices from a phone description instead of a proper look at the door. Before you commit a figure, the variables that move the price are:

• Door type: UPVC and composite doors with a euro cylinder are the quickest. Timber doors with a nightlatch or mortice usually need more adaptation and more time.
• Existing cylinder and handle suitability: If the current cylinder is the wrong size, the wrong security rating, or the handle won't suit the smart device, factor in a new cylinder or handle and the time to fit it.
• Device type: A simple retrofit thumbturn lock is far quicker than a motorised deadbolt or a full smart multipoint, which also cost more to supply.
• Wi-Fi and bridge setup: Remote access via a bridge or hub, and any home-network troubleshooting, adds time. A weak or congested home Wi-Fi can turn a quick job into an hour of diagnostics.
• Number of users to configure: Setting up codes, app access and fobs for several household members and tradespeople — and showing the customer how to manage them — is real work. Build it in.

Quick Reference: Smart Lock Installation Prices UK 2026