30-Second Verdict
| Level Lock | Level Lock+ | Level Bolt | |
|---|---|---|---|
| Price | £89.41 | £137.42 | ~£90 |
| Amazon UK rating | 3.8/5 | 3.9/5 | N/A |
| No drilling | ✅ | ✅ | ✅ |
| Invisible | ✅ | ✅ | ✅ |
| Key card included | ❌ | ✅ | ❌ |
| Best for | Budget renters | Premium renters | Minimalists |
I paid £120 to a Locksmith. Three Times in One Month.
I live in a rented flat in Stratford, London. I lost my keys three times in one month. The third time, a locksmith charged me £120. My landlord was annoyed. I needed a smart lock. But my landlord would never allow drilling. Then I found Level Lock.
It seemed too good to be true. A smart lock that hides inside your door. No visible tech outside. No drilling. No deposit risk. I bought it anyway. Six months later, I am still using it every day.
This Level Lock Review UK covers everything you need to know before buying.
What Is Level Lock? The Invisible Smart Lock Explained
Most smart locks look obvious. They sit on your door like a chunky box. Your landlord notices immediately. Level Lock is different.
It fits inside your existing deadbolt. The outside of your door looks completely unchanged. Your original key still works from the outside. Your landlord has no idea that anything has changed.
This is called a retrofit smart lock. You are not replacing your lock. You are upgrading the interior. When you move out, you swap the original part back in. Done.
Is the Level Lock any good? For UK renters, it is genuinely one of the best options available. It solves the exact problem renters face — smart security without touching your door’s exterior.
It works with Apple HomeKit via Bluetooth. You unlock it with your phone, a key card (Level Lock+ only), or your original physical key. No Wi-Fi required for basic use.
The Three Products — Which One Should You Buy?
This is the most important section. All three locks share the same invisible design. But they have key differences. Here is my honest breakdown.
Level Lock Basic — £89.41 | Amazon Rating: 3.8/5
The Level Lock Basic is the entry point. It fits inside your existing deadbolt. Nothing changes on the outside. You unlock it using the Level Home app on your iPhone.
Key features:
- Bluetooth unlock via the Level Home app
- Apple HomeKit support
- Auto-unlock when you approach your door
- Physical key works as a backup
- CR2 battery lasts up to 1 year
Who should buy this? Budget-conscious renters who use an iPhone. If you just want keyless entry without spending £137, this does the job. The 3.8/5 Amazon rating reflects some connectivity gripes, but day-to-day it is reliable.
The main limitation is no key card. You unlock with your phone or your physical key. That is it. If your phone battery dies, you use your key. Simple enough.
This is a solid starting point for any Level Lock Review UK comparison. It is the cheapest invisible smart lock on Amazon UK right now.
Level Lock+ — £137.42 | Amazon Rating: 3.9/5
The Level Lock+ is the one I actually use. It adds two features that the Basic does not have — Apple Home Key and a physical key card.
Key features:
- Everything in Level Lock Basic
- Apple Home Key (tap your iPhone like a contactless payment)
- 2x key cards included
- Works with Apple Watch
- Compatible with Google Home and Amazon Alexa (via Matter bridge)
Who should buy this? Anyone who wants more ways to unlock their door. The key cards are genuinely useful. Give one to a partner. Keep one in your wallet as backup. The Apple Home Key feature is satisfying — you tap your phone on the lock, and it opens instantly.
The 3.9/5 Amazon rating is slightly better than the Basic. Most negative reviews mention Bluetooth range issues. In my experience, range is fine within a normal flat or house.
If you are comparing a level lock plus review to the Basic, the £48 difference is worth it for the key card alone.
Level Bolt — ~£90 | No Amazon UK Rating Available
The Level Bolt is slightly different. It replaces your full deadbolt rather than fitting inside an existing one. It still looks invisible from the outside. But it is a complete deadbolt replacement.
Key features:
- Full deadbolt replacement (not just interior retrofit)
- Invisible exterior design
- Bluetooth + Apple HomeKit
- Physical key works as a backup
- Fits a wider range of door types
Who should buy this? Renters whose existing deadbolt is incompatible with the Level Lock Basic. The Level Bolt fits more door types. It is also worth considering if your deadbolt is old and you want a fresh mechanism.
The Level Bolt review situation in the UK is limited — it is harder to source than the Level Lock range. Check Amazon UK for current availability.
[Check 5 Best Smart Locks for UK Renters]
Installing Level Lock in a UK Rental — No Drilling, No Damage
This is what every UK renter wants to know. Will I damage the door? Will I lose my deposit?
The answer is no. Here is why.
The Level Lock replaces only the interior thumb-turn of your deadbolt. You unscrew two screws. Slide the old part out. Slide the Level Lock module in. Screw it back. Done in 10 minutes. No drilling. No tools beyond a Phillips screwdriver.
When you move out, you reverse the process. Slide the Level Lock out. Put the original part back in. The door looks exactly as it did on day one.
Your deposit is safe. Your landlord will not know. I specifically told my letting agent I was “adjusting the interior thumb-turn.” They said fine. No issues.
One important note for UK renters: Check your door type before buying. Level Lock fits standard cylindrical deadbolts. Many UPVC doors in the UK use euro-cylinder or multi-point systems. See the FAQ section below for details.
How to Unlock Your Door
You have three ways to unlock. Each one works independently.
1. Level Home App (Bluetooth) Open the app. Tap unlock. The door opens within seconds. Auto-unlock detects when you approach and unlocks automatically. This works within Bluetooth range — roughly 10 metres.
2. Key Card (Level Lock+ only) Hold the card near the lock. It unlocks instantly. Works like a contactless payment. Two cards come in the box. Give one to a partner or flatmate.
3. Physical Key: Your original key still works from the outside. Always. This is your backup. It never stops working regardless of battery or app issues.
Battery Life — Nothing to Worry About
The Level Lock runs on one CR2 lithium battery. Level claims up to 12 months of battery life. In practice, most users report 6–12 months depending on usage.
The app sends a low battery alert before it runs out. You will not be caught off guard.
If the battery dies completely, your physical key still works from the outside. You are never locked out. Replace the battery in 30 seconds by unscrewing the small cap on the interior module. Keep a spare CR2 — they cost under £5 on Amazon.
My Experience — 6 Months in a Rented Flat in London
I bought the Level Lock+ for £137.42. I installed it in 10 minutes. My landlord visited last week. He did not notice anything different. The outside of my door looks the same. That is the magic of this lock.
The auto-unlock feature works most mornings. I walk up to my door with my gym bag, and it is already unlocked. Small thing. Big difference.
The app is clean and simple. I have had two or three moments where it did not connect immediately. Waiting 20 seconds is not a crisis. I used my key.
The key card has saved me twice. Once, when my phone battery died. Once, when I handed my flat key to a friend and forgot about the smart lock. She just used the card.
The only thing I miss is remote access. Without a HomeKit hub (Apple TV or HomePod), you cannot unlock from outside Bluetooth range. That is my one real frustration with this Level Lock Review UK experience.
Level Lock+ vs The Competition
| Level Lock+ | Yale Linus L2 | Nuki 3.0 Pro | ULTRALOQ U-Bolt | |
|---|---|---|---|---|
| Price (UK approx.) | £137 | £140–£160 | £120–£140 | £100–£130 |
| No drilling | ✅ | ✅ | ✅ | ❌ (some models) |
| Invisible exterior | ✅ | ❌ | ❌ | ❌ |
| Fingerprint | ❌ | ❌ | ❌ | ✅ |
| App rating | 3.9/5 | 4.3/5 | 4.4/5 | 4.0/5 |
| Best for | Renters, Apple users | UK homeowners | Android + Apple | Fingerprint seekers |
[See ULTRALOQ review] | [Check my LOCKSTAR review here] | [Read WELOCK review]
The Yale and Nuki are excellent locks. But you can see them. The Level Lock+ is invisible. For renters, that changes everything.
Pros and Cons
✅ Pros
- Completely invisible from outside — landlords will not notice
- No drilling, no permanent changes — deposit stays safe
- Original key always works — never locked out due to battery or app failure
- Apple HomeKit integration is smooth, fast, and reliable
- Battery lasts up to 1 year — low maintenance
- Installation takes 10 minutes — no professional help needed
❌ Cons
- No fingerprint entry — competitors offer this at similar prices
- Bluetooth only — no remote access without a HomeKit hub
- Not compatible with all UK door types — UPVC multi-point locks will not work
- CR2 battery — less common than AA; worth buying spares in advance
Security Questions — Honest Answers
How Secure Is Level Lock?
The Level Lock uses AES-128 encryption for all Bluetooth communication. That is the same standard used in banking. The physical deadbolt meets ANSI 156.40 residential standards. It is a proper, strong lock.
Can Level Lock Be Hacked?
Technically, any connected device has some vulnerability. In practice, a Bluetooth attack requires the hacker to be physically at your door. They would also need to break AES-128 encryption. Most burglars kick the door in. They do not hack smart locks. The risk is low.
How Long Does Level Lock Last?
Users have reported reliable performance at 3–4 years of daily use. Level continues to release software updates. The stainless steel mechanism handles UK weather without issue.
Do Smart Locks Affect Insurance?
This is important. Most UK home insurance policies care about BS 3621 certification. Level Lock is a retrofit addition. Your existing deadbolt’s certification still applies. However, always check with your insurer directly. Some policies have specific wording about modifications. Do not assume — ask first.
UK Renter FAQ
Does Level Lock work on UPVC doors?
Standard Level Lock fits cylindrical deadbolts. Most modern UK UPVC doors use euro-cylinder or multi-point locking systems. These are not compatible. If your door has a handle you lift before turning the key, it is likely a multi-point system. Check before buying.
Will my landlord know?
Almost certainly not. The exterior of your door is completely unchanged. The interior change is subtle. Unless your landlord examines the inside of your deadbolt closely, they will not notice. Thousands of UK renters use Level Lock exactly this way.
Will I lose my deposit?
No. There are no permanent changes to the door. No holes. No damage. When you move out, you swap the original mechanism back in. It takes 10 minutes. Your deposit is safe.
Does Level Lock work without internet?
Yes. Bluetooth unlock, key card unlock (Level Lock+), and physical key all work without Wi-Fi or internet. You only need the internet for remote access via a HomeKit hub or for software updates.
What are the pros and cons of Level Lock Plus?
Pros: Apple Home Key, two key cards included, Apple Watch support, slightly better Amazon rating. Cons: costs £48 more than the Basic; key cards are only useful if you actually need them. For most renters, the Level Lock+ is worth the extra cost.
What does Reddit say?
Reddit communities like r/smarthome and r/homeautomation are generally positive. iPhone users love it. Android users feel it is limited. Common praise includes the invisible design and build quality. Common complaints include Bluetooth range and the lack of remote access without a hub. The level lock review Reddit consensus is: great product if you are Apple-first, frustrating if you are not.
Final Verdict
Buy Level Lock Basic (£89.41) if you are on a budget and use an iPhone. It does everything essential. App unlock, physical key backup, invisible design. No extras, no fuss.
Buy Level Lock+ (£137.42) if you want key cards, Apple Home Key, and Apple Watch support. This is the one I recommend for most renters. The key cards alone justify the price difference.
Buy a Level Bolt if your deadbolt is incompatible with the Level Lock Basic. It fits more door types and still gives you the invisible exterior.
Would I buy again? Yes. Without hesitation. This Level Lock Review UK ends the same way it started — as a renter who was sick of losing keys and paying locksmiths. Level Lock fixed that problem completely.
Overall rating: 8.4/10.
Where to Buy
- Level Lock Basic → [Amazon UK — ASIN B08X6R77VX]
- Level Lock+ → [Amazon UK — ASIN B0C2PD2NWZ]
Always check the latest prices on Amazon UK. Prices can change. The ASINs above are the verified UK listings.
I paid for this lock with my own money. No free product. No sponsored content. This Level Lock Review UK is an honest experience from one UK renter to another.
Last updated: June 2026
