One of the most common things a local business owner says to me is that they just need more Google reviews and then they'll be at the top of the map. It's a fair thing to think, because reviews clearly matter, but it isn't the whole story, and I can show you where it breaks using a real plumber. Clearline Group, a plumbing and drainage company based near Dorking in Surrey, went from 47 Google reviews to 113 while we worked with them, and today they're one of the hardest plumbers to beat on the map around Dorking. But there's one search those reviews still haven't won, and it tells you more about how Google Maps works than the wins do.
Here's my angle, so you know where I stand. Getting more reviews for our clients is part of what Rank on Google does, so naturally I'd like you to see one where it worked. The part that's actually worth your time is the opposite, though: the search where the reviews made no difference at all, because knowing that is what stops you spending money in the wrong place.
Where the reviews actually helped
When we started, the plumbing side of Clearline's website was thin and the Business Profile was quiet. We rebuilt the plumbing pages and a page for each town they cover, so every area had something real behind it, we got them listed properly across the main directories, and alongside all of that the review count kept climbing, from 47 in the spring to 113 by late September.
On the most recent scan, on 24 September, a search for "plumber" around Dorking put Clearline 3rd out of 89 businesses, and they came up at 150 of the 169 points we check across the map. They've held about that position since the late summer. So on their own patch, with a full profile and a proper website underneath it, the reviews are doing exactly what people hope they'll do.
Map scan, 24 Sep 2026, "plumber", 13x13 grid centred near Dorking. 3rd of 89 businesses, showing up at 150 of the 169 points.
I'll be straight about one thing. I can't tell you the reviews alone did this, because we rebuilt the pages and fixed the website at the same time, and all of it pulls in the same direction. But reviews are a real signal that Google leans on, Clearline's more than doubled, and the direction of travel isn't in any doubt. Clearline is one of a number of local businesses we've done this for, and you can see more on our results page.
The one search the reviews couldn't win
Clearline's main target from the start was Leatherhead, a few miles up the road from Dorking. We even built them a Leatherhead page. And yet, on every scan I ran for "plumber leatherhead" from late February to late March, they didn't come up in the top 20 at a single point on the map, even though the profile already had well over 40 reviews by then.
So why is that? On Google Maps, how close you are to the person searching counts for a huge amount. Reviews help you win the searches around where you actually are, but they can't move your front door. Clearline is a Dorking business, so when someone in the middle of Leatherhead searches for a plumber, the firms that are physically in Leatherhead start with a lead that no number of reviews on a Dorking profile closes on its own.
This is the bit worth knowing before you spend anything. If a town you want isn't moving, more reviews might not be the lever at all. Sometimes the honest answer is that you're too far from it, and the money is better spent winning the ground you can actually reach.
So do reviews help you rank?
The straight answer is yes, reviews help you rank, and anyone who tells you they don't is wrong. But they help you rank where it's realistic to rank, which is in and around where you're based. They're one of the things Google weighs up, next to your website, your profile and how close you are to the searcher, and they can't carry the other three on their own. If you're collecting reviews and still going nowhere for a search that matters, the problem is usually one of those others, not the reviews. It's the same work we do for any plumbing or drainage company, and reviews are only ever one part of it.
How I measured this
The ranking figures come from map scans, not from typing the search into my own phone. Each scan lays a grid of 169 points, 13 across and 13 down, over the area, and records where the business comes up at every one of them for a single search, so I get the whole picture rather than one spot. The "plumber" figures are from a scan centred near Dorking on 24 September, the Leatherhead ones from scans run through February and March, and the review counts are read straight off the Business Profile. Every number here is as printed on those scans, and where I've set two of them side by side they were measured the same way.
If you want to know where you actually stand before you spend a penny on reviews or anything else, you can run a free scan of your town. It shows you where you come up across the whole map for your main search, and it's a far better guide to what will move you than guessing.
J
Runs Rank on Google and Nivoro Marketing from Bishopton, Renfrewshire.