How we score plumbers in Aiken, SC
What this page covers
The Aiken, SC Plumber Guide currently scores 67 plumbing businesses across the area. Every score on this site comes from the same rubric applied the same way to each business. This page explains what goes into that rubric, why we weighted it the way we did, and where the honest limits are.
The five signals, heaviest first
Each business gets a composite score from 0 to 100, built from five measured signals. Here they are in order of how much they count:
- Sentiment, 28%: a synthesis of what recent reviews actually say, praise and complaints alike.
- Rating, 26%: the Google aggregate star rating.
- Volume, 20%: how many reviews a business has, log-scaled so ten reviews don't get crushed by three hundred and three hundred don't get an unfair multiplier either.
- Recency, 10%: how recently customers have actually left reviews.
- Completeness, 16%: whether phone, website, hours and address are all listed and accurate.
Why sentiment carries the most weight
A star average is a single number, and single numbers hide patterns. Two plumbers can sit at the same 4.3 stars while one has a spread of minor gripes and the other has five recent reviews all describing the same no-show or the same surprise charge on a water heater job. The star rating won't show you that difference. Reading what people actually wrote will. That's why we weight sentiment above the raw rating itself: it's the only signal that catches a repeated, specific problem (or a repeated, specific strength, like a tech who always calls before arriving) that an average smooths over. We synthesize themes from recent reviews rather than republishing them word for word, and we always link back to Google so you can read the originals yourself.
Why the other signals matter
Rating still counts for a lot, 26%, because it's the broadest signal customers leave behind and it's hard to fake at scale. Volume matters because a 5.0 average from four reviews tells you much less than a 4.6 from two hundred, so we log-scale it rather than reward raw counts in a straight line. Recency matters because a plumbing business that was great in 2019 may have changed hands, changed staff, or changed its dispatch process since. Completeness, 16%, is the practical layer: a business without a working phone number, listed hours, or an address is harder to trust with an emergency call, no matter how good the reviews are.
Where the confidence limits are
Some businesses in Aiken simply don't have much recent review activity. When that's the case, we label the score as low-confidence rather than pretend a thin data set carries the same weight as a thick one. A low-confidence label isn't a penalty, it's a flag that there isn't enough recent signal to be fully sure, and it's worth reading the underlying reviews yourself before booking.
What never changes the score
Scores come from this rubric and this data, full stop. They are not edited by hand after the fact. If paid placement exists anywhere on this site, it is always labelled clearly and it never touches the score itself, a paid listing does not move up the rankings because it's paid. Any list where the picks or the order involved editorial judgment, such as our emergency plumbing picks, says so directly on that page.
Who oversees this
Sofia Tan, Editorial Lead, maintains the rankings on this site and oversees how the rubric gets applied across all 67 businesses. Questions about methodology or a specific score can be traced back to that oversight. You can see the full directory from the home page.