Smart locks are increasingly popular in Dulwich, East Dulwich, and Herne Hill. This guide reviews the leading options for UK homes in 2025 — including Yale Conexis, Ultion Smart, and August — with honest assessments of security, reliability, and value.
Smart Lock Reviews for Dulwich Homes — What TrustLock Installs in 2025
Smart lock enquiries in Dulwich (SE21), East Dulwich (SE22), and Herne Hill (SE24) have grown substantially. The main drivers are: rental properties where key management is complex, households with elderly relatives or au pairs, and homeowners who want remote monitoring.
This review covers the four smart locks TrustLock fits most frequently in South London homes. All assessments reflect installation experience and post-installation feedback from Dulwich-area customers — not just marketing claims.
Yale Conexis L2 — Our Most-Installed Smart Lock
Price (supply and fit): from £349
The Yale Conexis L2 is the lock we recommend most often for East Dulwich and Dulwich Village properties. It replaces the entire door furniture (handle, cylinder, escutcheon) rather than just adding a device to an existing cylinder.
What Works Well
What to Know Before Buying
**TrustLock verdict:** The strongest overall choice for UK homes where insurance compliance is required. Recommended for East Dulwich new builds, Dulwich Village conversions, and SE22 rental properties.
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Ultion Smart — Best Security Credentials
Price (supply and fit): from £299
Ultion is made by Brisant Secure, the same company behind the original Ultion cylinder — which consistently ranks first in independent security testing by Which? and Sold Secure. The Ultion Smart is a connected version of the same cylinder.
What Works Well
What to Know Before Buying
**TrustLock verdict:** The best security credentials of any smart cylinder we fit. Ideal for Dulwich homeowners who want the security upgrade without changing the door aesthetic. Particularly suited to conservation-area properties in SE21.
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August Wi-Fi Smart Lock — Best for Retrofit
Price (supply and fit): from £249
The August Smart Lock Pro attaches to the inside of your existing deadbolt. This makes it popular for tenants who cannot change door hardware, and for homeowners who want to avoid replacing an existing high-quality cylinder.
What Works Well
What to Know Before Buying
**TrustLock verdict:** Good for rental situations and tech households. We always recommend pairing August with an Ultion or similar high-security cylinder — fitting it over a standard cylinder is a missed opportunity.
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Schlage Encode — US Import, Not Commonly Fitted in UK
Price (supply and fit): from £289 if sourced)
Occasionally requested by customers who have seen US reviews. The Schlage Encode uses a different lock standard (ANSI/BHMA Grade 1) which is not directly comparable to BS3621. It also uses an imperial cylinder format not compatible with most UK doors.
**TrustLock verdict:** We do not recommend or routinely fit the Schlage Encode in South London homes. It is not designed for UK door preparations and does not carry UK insurance approvals.
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Comparison Summary
| Lock | BS3621 | Sold Secure Diamond | App Control | Supply & Fit From |
|---|---|---|---|---|
| Yale Conexis L2 | Yes | Yes | Yes | £349 |
| Ultion Smart | No (TS007 3-star) | Yes | Yes | £299 |
| August Wi-Fi | Depends on existing cylinder | No | Yes | £249 |
Installation in Dulwich — What to Expect
TrustLock installs smart locks across SE22, SE21, SE24, SE15, SE5, SW2, and SE1. A standard smart lock installation takes 45–90 minutes depending on door preparation required.
What we check before fitting:
Frequently Asked Questions
Q: Do smart locks affect my home insurance in Dulwich?
If the smart lock is BS3621-rated (Yale Conexis L2 qualifies), most insurers treat it the same as any other compliant deadbolt. Non-rated devices (August, basic retrofit modules) do not typically satisfy insurer requirements for deadbolt compliance.
Q: Can I still use a physical key with a smart lock?
All locks listed above retain physical key access. We strongly recommend keeping a key as backup — battery failure, connectivity loss, or app outage should never lock you out.
Q: How long do smart lock batteries last?
Typically 3–12 months depending on usage frequency. All the locks listed above provide low-battery warnings via the app before the battery fails.
Q: Are smart locks suitable for rental properties in East Dulwich?
Yes — and this is one of the most common use cases. Landlords use smart locks to provide access codes to tradespeople, cleaners, and tenants without cutting additional keys. We regularly install Yale Conexis and Ultion Smart across SE22 and SE15 rental properties.
To book a smart lock consultation or installation, call **07984 547185** or [request a free quote](/contact).