Do Google Reviews Affect Rankings?
Yes, and the conversion effect is the bigger half.
The Short Answer
Yes. Google has stated that review count and score feed local ranking, and every large scale study of local results finds the same association.
But the ranking effect is the smaller half of the value. Reviews also decide whether someone taps you rather than the listing above you, and that conversion effect is larger and more immediate than any ranking change.
A business ranked second with a four point eight and ninety reviews will often take more work than the one ranked first with a four point one and twelve. So the honest framing is that reviews are the main trust asset a local business has, and they happen to help rankings too.
What Specifically Counts
Four things, roughly in order.
Count, relative to the other businesses competing for the same searches. There is no absolute target. If the three businesses in your map pack have forty, sixty and eighty, then your twelve is the problem and two hundred is unnecessary.
Average rating, where the sweet spot is around four point two to four point eight. Perfect fives with high volume read as bought, to both people and platforms.
Recency and steadiness. Reviews from the last few months carry more weight than reviews from four years ago, and a steady trickle looks like a working business while a sudden cluster looks like a campaign.
Content. This is the underrated one. Reviews that mention the specific service and the place associate your business with both, and those associations are what an AI assistant reads when someone asks for a recommendation with a particular need.
How Many You Need
Work it out from your competition rather than from a number in an article.
Search the three or four terms you most want to win, on a phone, from somewhere in your service area rather than from your own premises. Write down the review count and average of everyone in the map pack.
Your target is to be comfortably within that range. Once you are in it, further volume produces diminishing returns and your effort is better spent elsewhere.
For most local businesses that means something between thirty and a hundred, arriving continuously. Review software will tell you to aim for several hundred, and you do not need them.
Asking Without Getting Into Trouble
Ask everyone, at the moment they have just told you they are pleased; a week later by email the feeling has faded.
Make it one tap. Google provides a short review link for your profile. Put it in a text message, on the invoice, on a card, in a QR code at the counter. Every extra step loses a share of people.
Stay inside the rules. Do not offer discounts or entries into a draw for reviews. Asking only the customers you expect to be positive is gating, which the guidelines prohibit, and buying reviews, or letting an agency buy them on your behalf, ends the same way. Removal of your entire review set is a real outcome and it does not come back.
The honest version works well enough. Most satisfied customers will leave a review if asked directly, once, at the right moment, with a link.
Replying Is Half The Value
Reply to every review, positive and negative. Your replies are text on the page, so a reply naming the service and the area adds a small relevance signal. That is the minor benefit.
The major benefit is that everyone reading your reviews is reading how you respond. A calm, specific reply to a complaint does more for a wavering prospect than five glowing reviews, because it shows what happens when something goes wrong, which is what they are worried about.
For a negative review: acknowledge it, give the relevant fact briefly without arguing, say what you did or will do, and move it offline. Avoid litigating the details in public or blaming the customer, and keep it to a short paragraph. Anyone reading a long defensive reply concludes the reviewer had a point.
Where Else They Matter Now
Beyond Google, review text is being read by AI assistants when they decide which business to recommend.
This changes what a useful review looks like. A system answering a question about a dentist good with anxious patients is looking for that specific evidence, and the evidence is in what customers wrote. Forty reviews mentioning patience with nervous patients beat two hundred saying great service.
You cannot and should not script this. You can ask at the moment the specific thing went well, which tends to be what the customer writes about. And you can make sure you have reviews on more than one platform, because a business corroborated across Google, a trade platform and an industry directory is a business these systems have independent signals for.
What Not To Do
Do not embed reviews with a third party widget that pulls them in after the page loads. It slows the page and, more importantly, the text often is not readable by the systems you want reading it. Publish the text on the page and link to the profile.
Displaying only five star reviews reads as curated, because it is.
Chasing a perfect average is wasted effort, and replying to a bad review the day you get it, while annoyed, usually makes things worse. Reviews are also never a project that finishes. A business with ninety reviews, none from the last eighteen months, looks closed.