How SG Locksmith Guide scores and ranks locksmiths

What this page covers

SG Locksmith Guide currently tracks 185 locksmith businesses across Singapore and scores each one on a 0-100 scale. This page explains exactly what goes into that number, why we weight things the way we do, and where the data falls short. If you want the current leaderboard rather than the method, see our best residential locksmith list.

The five signals behind the score

Every score is built from five measured inputs. We list them here from heaviest to lightest, because the order tells you what we think actually matters when you're choosing someone to cut a key or open a jammed door at 2am.

Sentiment, 28%

This is a synthesis of what recent reviews actually say, not just how many stars they carry. We read through recent review text for recurring themes: were customers happy with the price they were quoted versus what they paid, did the locksmith show up when promised, was the work done cleanly and did the lock actually get fixed. Sentiment gets the biggest weight on this site because it's the only signal that catches problems a star rating can hide.

Rating, 26%

The Google aggregate star rating for the business. It's a useful, well-understood snapshot, but on its own it flattens a lot of nuance, which is exactly why we don't let it dominate the score.

Volume, 20%

How many reviews a business has, log-scaled. A locksmith with 6 reviews and a locksmith with 400 reviews shouldn't be treated as equally proven just because both average 4.8 stars. Log-scaling means volume still counts, but going from 200 to 400 reviews matters a lot less than going from 5 to 50.

Recency, 10%

How recently customers have actually reviewed the business. A locksmith who was excellent in 2019 but has gone quiet since isn't necessarily the same business today. Ownership changes, staff turn over, and service quality drifts, so recent activity counts for more than old history.

Completeness, 16%

Whether the listing has a working phone number, a website, published hours and a real address. This is a practical, contactability check: a locksmith who's hard to reach or verify isn't much use in an emergency, no matter how good the reviews are.

Why sentiment outweighs the star average

Two locksmiths can sit at exactly the same star rating while telling very different stories underneath. One might have a spread of minor gripes, the other might have the same specific complaint showing up again and again, like inflated call-out fees or no-shows for scheduled appointments. A star average can't distinguish between those two situations. Reading what recent reviewers actually wrote is the only reliable way to catch a pattern like that before you're the one dealing with it, which is why sentiment carries more weight here than any other single signal.

Where the score is honest about its limits

We synthesise review themes rather than republishing review text, and we always link back to Google so you can read the original source yourself and form your own view. Businesses with only a handful of recent reviews don't get penalised silently: they get a low-confidence label, so you know the score is built on thinner evidence and can weigh that accordingly.

Rankings are earned, not bought

Position on SG Locksmith Guide comes only from this rubric applied to measured data. Where paid placement exists anywhere on the site, it is always clearly labelled as such and never affects a business's score or ranking.

Who publishes this

SG Locksmith Guide is published by SG Homee Guides, founded in 2025 by Sam Lee after ten years working in Singapore's home services industry across air conditioning, plumbing, renovation and locksmith work. That background shapes how the directory is built: listings are compiled from published review data and public business information, rankings are earned rather than purchased, and every contractor on the site has to meet the directory's own standards before it's listed. Sam Lee also serves as Managing Editor, maintaining the rankings and overseeing the rubric described above.

Data across the directory is refreshed monthly, and each listing carries a "last verified" stamp so you can see the maintenance is active rather than a one-time snapshot. For questions about a listing or the methodology, reach the publisher directly at sam@sghomee.com, or visit sghomee.com.