A 4.8 means nothing. Here's how to actually read a contractor's reviews.

When a homeowner opens a contractor's profile, their eye goes straight to one number: the star average. It feels like a grade. A 4.8 looks like an A; a 4.1 looks like a gentle warning. So we did the obvious thing, we collected every review we could legally access for the businesses in our rankings, 1.2 million of them across roofing, HVAC, plumbing, cleaning, and five other categories, and we asked a simple question: does the star average predict whether you'll have a good experience?

It mostly doesn't. The average tells you how a business performed for the median customer on a median day, which is exactly the situation you will probably never be in. What predicts your experience is buried in the shape of the reviews, not their mean.

The average is designed to look good

Here is the first uncomfortable fact: on the major platforms, the rating distribution is wildly bimodal. People leave reviews when they are delighted or furious, rarely in between. That pushes almost every business toward the same narrow band near the top, because the happy majority floods five stars and dilutes everything else.

In our data, the median rating for a business with more than 100 reviews was 4.6. The 10th percentile, the genuinely struggling businesses, still sat at 4.1. In other words, the entire usable range of the grade most people rely on is about seven tenths of a point wide. You cannot make a good decision with a ruler that has only one tick mark.

Read the bottom of the page first

The most valuable reviews on any profile are the bad ones, specifically the one- and two-star reviews from the last twelve months. Not because you should fixate on the negative, but because they are the only place you learn how a business behaves under stress. Anyone can be pleasant cashing your deposit. What you are buying is how they act the day a pipe they touched starts leaking at 9pm.

When we coded the one-star reviews, a striking pattern emerged: 71% of them were not about the quality of the work at all. They were about communication: no-shows, silence after payment, surprise charges, a job declared done that plainly was not. The actual craftsmanship was rarely the complaint. The relationship was.

So read the negatives looking for one thing above all: does the owner respond, and how? A defensive, blaming reply to a legitimate complaint tells you exactly how your bad day will go. A specific, accountable reply, even to an unfair review, is one of the strongest positive signals on the entire page.

Recency and volume beat the headline number

A 4.9 built from 380 reviews, the newest of which is fourteen months old, is a photograph of a company that may no longer exist. Ownership changes. The good lead tech leaves. The crew that earned those stars got poached by a competitor. We weight recent reviews far more heavily than old ones in our Vetted Score for exactly this reason, and you should too when you read by hand.

What enough reviews actually means

Volume matters, but with sharply diminishing returns. The jump from 5 reviews to 50 is enormous, it is the difference between an anecdote and a signal. The jump from 200 to 600 tells you almost nothing new. Once a business clears roughly 40 to 50 recent, detailed reviews, add volume to your confidence but stop treating a bigger number as a better number.

None of this takes long once you know where to look. The whole point of reading reviews well is that it replaces a vague feeling, they seem popular, with a small set of concrete facts about how a business communicates, how recently it has performed, and how it behaves when a customer is unhappy. Those three things, in our data, predict satisfaction far better than any star average ever could.