Smart locks

Entrance doors with smart locks: what works on a steel door

Unigon DOORS technical team · October 14, 2026 · 5 min read

An oak-finish steel entrance door with an integrated smart lock on the leaf
In short: A smart lock works well on a steel entrance door when the door is built for it: the lock case, multi-point deadbolts and wiring are planned at manufacture, not drilled in afterwards. Entry can be by fingerprint, keypad code, card or app, depending on the model. Unigon offers a steel entrance door with an integrated smart lock, made to measure.

Smart locks are everywhere now, and the temptation is to treat them as an accessory — buy the door, buy the lock, bolt one onto the other. On a steel entrance door that approach gives up most of the benefit. A smart lock works best when the door is built for it: the lock case, the multi-point deadbolts and the wiring are planned at manufacture, so the electronics drive a mechanism that was designed around them rather than one they were forced into.

What a smart lock actually adds

A smart lock does not make a door stronger. It changes how you open it. The strength still comes from the door and its mechanism; the smart lock is the control layer on top. So the two questions worth separating are: how do people get in, and what is the lock throwing when they do.

Entry methods, depending on the model, include:

  • Fingerprint — no key, no code to remember; good for a household or a fixed set of users.
  • Keypad / code — a PIN you can give out and change, which suits short-lets and shared access.
  • Card — a tap card, familiar from hotels and offices.
  • App — open or grant access from a phone, useful when you are not on site.

Most integrated doors support more than one of these at once, and keep a physical key as a fallback.

Entry methods and where each fits

Entry method

How it opens

Fits best

Fingerprint

Enrolled finger on the reader

Homeowners, a fixed household

Keypad / code

A PIN, changeable per user

Short-lets, shared or rotating access

Card

Tap an enrolled card

Apartment buildings, offices

App

Phone, grant access remotely

Hosts and owners managing a door off site

Physical key

Traditional backup

Everyone — the fallback that always works

The right mix is about who uses the door and how often that changes. A family home leans on fingerprint; a Batumi short-let leans on codes or the app so each guest gets their own access and the host never copies a key.

Why the mechanism matters more than the gadget

Behind the reader is the part that does the work: the multi-point deadbolts. Instead of a single bolt, the lock throws several points into the frame along the leaf, spreading the resistance. The smart electronics decide when to throw them; the bolts themselves are what hold the door shut against force.

That is why the door underneath matters. A Unigon entrance door is built from a reinforced steel skin, an aluminium core and a rock-wool fill — the structure the deadbolts anchor into. A sophisticated lock on a flimsy leaf is still a flimsy door. The electronics and the mechanism have to be specified together.

Integrated at manufacture vs retrofitted

This is the honest heart of it. You can retrofit a smart lock onto an existing steel door, and sometimes that is the only option. But integrating it at manufacture is better, and it is worth knowing why:

  • Clean fit. The lock case and reader cut-outs are made as part of the door, not drilled into a finished leaf with whatever clearance is left.
  • Matched mechanism. The multi-point deadbolts are chosen and aligned to work with the lock, not adapted to it afterwards.
  • Hidden, protected wiring. Cabling runs inside the leaf by design, instead of being threaded through a door that was never meant to carry it.
  • One warranty, one supplier. The door and its lock are specified, built and handed over together.

Unigon offers a steel entrance door with an integrated smart lock, built this way and made to measure, in RAL custom colours and finishes such as oak.

Where integrated smart-lock doors earn their place

  • Short-let and Airbnb apartments — especially in Batumi, where owners turn over guests constantly. Code or app entry means each guest gets their own access, changed between stays, with no keys to copy, lose or collect.
  • Apartment buildings — residents who prefer a fingerprint or card to a key ring, with a key retained as backup.
  • Developments — a consistent, modern entrance specification across units, from one supplier, built to the same standard.

An honest note on specifications

We will not print a battery life, a brand name or a connectivity spec in an article, because those belong to the specific lock model and change between them. Ask for the data sheet of the model we quote, and we will confirm the entry methods, power and any app or network features it actually supports — on request, per model, not as a slogan.

A short checklist before you choose

  • Decide who opens the door and how often that set of people changes.
  • Pick the entry methods you need — fingerprint, code, card, app — and a key backup.
  • Confirm the door itself: reinforced steel skin, aluminium core, rock-wool fill.
  • Check the multi-point deadbolt mechanism, not just the reader.
  • Ask whether the lock is integrated at manufacture or retrofitted.
  • Request the model's data sheet for battery, power and connectivity.
  • Confirm size, RAL colour and finish — these are made to measure.

Get a quote on the right door

Tell us how the door will be used — a home, an apartment, a short-let — and which entry methods matter, and we will quote a steel entrance door with an integrated smart lock, made to measure, in the colour and finish you want. We supply across Tbilisi, Batumi, Kobuleti and Rustavi. Message us on WhatsApp or call +995 596 81 88 00, or write to sales@unigon.ge.

Get a quote on WhatsAppSend your sizes or a door schedule — we quote per project.

FAQ

Common questions

Can you put a smart lock on any steel door?

Most steel doors can take one, but the result is only as good as the preparation. A door built for a smart lock — with the lock case, multi-point mechanism and cabling planned at manufacture — is cleaner and more reliable than one retrofitted by cutting into a finished leaf. Unigon integrates the lock at production.

What entry methods are available?

Depending on the model: fingerprint, keypad code, card, and a phone app. Many doors support several at once, so you can keep a physical key as backup while using a code or fingerprint day to day. The exact set is per model.

Is a smart lock secure on an entrance door?

The security comes from the whole door, not just the electronics. Unigon entrance doors use a reinforced steel skin, an aluminium core and a rock-wool fill, with multi-point deadbolts that throw into the frame at several points. The smart lock controls that mechanism; the mechanism is what resists force.

What about battery life or connectivity?

That depends on the specific lock model, so we quote it per door rather than claim a figure here. Tell us whether you need app or network connectivity and we will confirm what the chosen model supports from its data sheet.

Is this good for a short-let apartment?

Yes. Code or app entry lets a short-let or Airbnb host give each guest their own access without handing over or copying keys, and change it between stays. It is a common reason owners in Batumi choose an integrated smart-lock door.