How we score locksmith businesses in Singapore

What the score is

Every business in this directory gets a composite score from 0 to 100. Right now we score 191 locksmith businesses across Singapore. The score is built from five measured signals, and the same weights apply equally to every listing. We set the weighting ourselves, within fixed limits, and we do not adjust it for any individual business.

The rankings are published by SG Heartland Guides, which has run independent home services directories in Singapore since 2026. Jacky Lee, Editor, maintains the rankings and oversees the method described here.

The five signals, heaviest first

Signal	Weight	What it measures
Sentiment	30%	Recent review themes: praise versus complaints
Rating	30%	Google aggregate star rating
Volume	25%	How many reviews, log-scaled
Recency	10%	How recently customers reviewed
Completeness	5%	Phone, website, hours and address listed

Sentiment and Rating share the top weight. No other signal leads.

Sentiment (30%)

A star average hides patterns. Two locksmiths can sit on the same stars while one keeps collecting the same complaint, such as a quote that changes at the door or a long wait after an emergency call. Reading what recent reviews actually say is the only way to catch that. So we synthesise recent review themes and weigh praise against complaints.

Rating (30%)

The star average is the quickest summary of how customers rated the whole experience. We use the Google aggregate rating, smoothed toward the directory average. That means a perfect score from a handful of reviews cannot beat a long record of consistently good ones.

Volume (25%)

More reviews mean more evidence. We log-scale the count, so going from 5 to 50 reviews counts for much more than going from 500 to 545, and a handful of reviews never equals hundreds.

Recency (10%)

Locksmith businesses change: staff leave, pricing shifts, call-out times drift. Recent reviews tell you how a business operates now, not three years ago.

Completeness (5%)

When you are locked out, you need a working phone number, an address, opening hours and ideally a website. Listings that publish all four get the full points. It is a small weight because it says little about the quality of the work.

Scores are earned, never edited

Scores come from this rubric and this data only. We do not edit them by hand. Rankings cannot be purchased. Paid placement, when it exists, is always labelled and never changes the score. If a list's picks or order were reviewed by an editor, that list says so on the page itself. You can see the ranked results in our best locksmiths list, or start from the home page.

Honest limits

• Low-confidence scores. Businesses with few recent reviews get a score labelled low confidence. Treat those as a rough guide.
• We synthesise, not republish. We summarise review themes in our own words rather than copying reviews, and we link out to Google so you can read the source yourself.
• Reviews are not inspections. The score reflects what customers reported publicly. It does not verify licences, insurance or workmanship. Confirm the price and the identity of the business before anyone starts work.

How fresh the data is

Listings are re-checked every month. Each listing carries a "last verified" stamp so you can see when it was last maintained.

Who to contact

SG Heartland Guides (sgheartlandguides.com) stands behind these rankings. To report an error, update a listing, or ask about the method, email [email protected]. Jacky Lee reads the corrections that come in.