Google Reads Your Reviews. Every Single Word
When someone leaves a review on your Google Business Profile, Google does not just count it as one more star. It reads the text. Every word. Google's natural language processing picks apart the review, identifies keywords and topics, and associates those terms with your business listing.
This matters because those keywords directly influence which searches your listing appears in. A plumber with twenty reviews that mention "boiler repair," "emergency plumber," and "Wrexham" has a significantly stronger signal for those searches than a plumber with twenty reviews that just say "Great job, highly recommend."
The text inside your reviews is one of the most powerful ranking factors you have. and it is the one factor you cannot directly control. You cannot write your own reviews. But you can influence what people write, and understanding how that works is the key to making review keywords work for your business.
Reviews containing relevant keywords improve local ranking by up to 15%
Google bolds keyword matches in reviews shown in search results
How Google Extracts Keywords from Reviews
Google uses something called entity recognition to identify meaningful phrases in review text. When a customer writes "Dave replaced our old back boiler with a new Worcester Greenstar and the house has never been warmer," Google pulls out several signals:
- Service type: boiler replacement, back boiler
- Brand name: Worcester Greenstar
- Outcome: positive sentiment (warmer house)
- Implied category: heating engineer, plumber
These extracted keywords get associated with your listing. The next time someone searches "Worcester boiler installation near me" or "back boiler replacement," your listing has an additional signal that a competitor without those review terms does not have.
Google also builds what it calls "review highlights" or "review summaries." You have probably seen these. small badges on listings that say things like "Known for: boiler repairs" or "Mentioned in reviews: friendly service." These are generated automatically from the most common keywords across all your reviews.
The more reviews that mention a specific service or keyword, the stronger that association becomes. Five reviews mentioning "emergency plumber" is a clear signal. One review mentioning it is a whisper.
Why You Cannot Script Reviews (and Should Not Try)
Let us address this directly: do not write reviews for your customers. Do not give them a script. Do not hand them a card with suggested text. Google's algorithms are increasingly good at detecting templated or suspiciously similar review language, and the consequences of getting caught range from review removal to profile suspension.
Beyond the detection risk, scripted reviews look fake to real people. If every review on your listing says "Excellent service from start to finish, would highly recommend to anyone looking for a reliable tradesperson," potential customers will notice the pattern and trust you less, not more.
Google's own guidelines are clear: reviews must be honest and reflect genuine experiences. You can read about what happens when businesses get caught manipulating reviews in our article on fake Google reviews and what to do about them.
The good news is that you do not need to script reviews. You just need to understand how to encourage customers to naturally include the details that matter.
You can't tell customers what to write — but you can ask the right questions that naturally lead them to mention your services and location.
How to Naturally Encourage Keyword-Rich Reviews
The trick is not to tell people what to write. It is to remind them of the details of their experience at the moment they sit down to write the review.
Timing matters. Send your review request immediately after finishing a job, while the details are fresh. If you wait a week, the customer will write "Good plumber, nice bloke." If you ask on the day, while they are standing in their newly fitted bathroom, they are far more likely to write "Dave and his team fitted a complete new bathroom in three days. new shower, toilet, basin, and tiling. The finish is brilliant."
Ask a question in your request. Instead of just sending a link with "Please leave us a review," try something like: "If you have a minute, we'd really appreciate a Google review. It helps if you mention what work we did. it helps other customers find us for the same type of job." This is not scripting. You are not telling them what to say. You are reminding them that specifics are helpful.
Mention the job in your message. "Hi Sarah, thanks for choosing us for your consumer unit upgrade. If you're happy with the work, we'd love a Google review." By referencing "consumer unit upgrade" in your message, you have planted that phrase in the customer's mind. They are much more likely to include it in their review.
Make it easy. Send a direct link to your Google review page. If the customer has to search for your business and figure out the interface, half of them will give up. One tap should take them straight to the review form. We covered review request strategies in depth in our guide on how to ask for Google reviews.
Good Reviews vs Great Reviews. Real Examples
Here is a five-star review that does nothing for your keywords:
"Great service, very professional, would use again. 5 stars."
That review is nice to have. It adds to your star count. But it gives Google zero keyword signals about what you do or where you work.
Now look at this five-star review:
"Called Chris for an emergency boiler repair on a Sunday evening. He was in Colwyn Bay within an hour, diagnosed a faulty diverter valve, and had the part fitted by Monday afternoon. Fair price and the heating has been perfect since. Would definitely recommend for any boiler or central heating work in the North Wales area."
That single review gives Google keyword signals for: emergency boiler repair, Sunday availability, Colwyn Bay, diverter valve, boiler work, central heating, North Wales. Every one of those phrases could trigger a search match.
The difference between these two reviews is not that the second customer was coached. It is that the second customer was prompted at the right time, while the details were fresh, and perhaps reminded to mention what work was done.
How Review Keywords Interact With Your Categories
Your Google Business Profile categories tell Google your broad business type. Your reviews fill in the detail.
If your primary category is "Plumber" and you have thirty reviews mentioning boiler repairs and radiator installation, Google builds a rich picture of exactly what kind of plumbing work you do. This helps you appear in specific long-tail searches that a bare "Plumber" category alone would not trigger.
Where this gets particularly powerful is for trades that span multiple specialities. A heating engineer who also does general plumbing benefits enormously from reviews that mention both heating work and plumbing work. Each mention reinforces a different search signal.
Similarly, your services list and review keywords should align. If you list "underfloor heating installation" as a service but no review ever mentions underfloor heating, the signal is weaker. When a review does mention it, the service listing and the review reinforce each other.
Instead of asking 'Please leave a review', try 'Could you mention what work we did and where you're based? It helps other local customers find us.'
Review Keywords for Different Trades
The keywords that matter vary by trade. Here are the types of phrases that carry the most weight:
For electricians: Full rewire, consumer unit upgrade, EICR, additional sockets, EV charger installation, lighting design, fault finding, emergency electrician.
For builders: Extension, loft conversion, garage conversion, structural work, new build, renovation, building regulations, project management.
For roofers: Roof repair, flat roof, slate roof, ridge tiles, guttering, fascia and soffit, chimney repair, storm damage.
For landscapers: Garden design, patio, fencing, decking, artificial grass, retaining wall, drainage, garden clearance.
For painters and decorators: Interior painting, exterior painting, wallpapering, commercial decoration, restoration, period property, preparation work.
When your reviews contain these trade-specific terms alongside location names, you build a keyword profile that is almost impossible for a competitor to match without genuine customer feedback.
Location Keywords in Reviews
Location mentions are often overlooked but they matter significantly. Google uses proximity as a major ranking factor. we explained how that works in our article on proximity in local search. But review text can supplement proximity signals.
If you are a plumber based in Rhyl but you do work across North Wales, reviews from customers in Prestatyn, Denbigh, and Colwyn Bay that mention those town names extend your geographic relevance. A review saying "Brilliant plumber, fixed our leak in Prestatyn within two hours" tells Google that your business serves Prestatyn, even if your address is in Rhyl.
This is one of the few ways to organically rank in a town you are not based in. You cannot fake it. you need real customers in those areas leaving real reviews. But if you are already working across multiple towns, making sure customers mention where they are based strengthens your geographic reach.
You can subtly encourage this by referencing the location in your review request: "Hi Mark, thanks for having us over in Prestatyn to sort out your boiler. If you get a minute, we'd really appreciate a Google review." The location reference makes it natural for Mark to include "Prestatyn" in his review.
How Many Keyword-Rich Reviews Do You Need?
There is no magic number, but there is a clear pattern. One or two reviews mentioning "boiler repair" barely register. Five to ten reviews mentioning it start to build a signal. Twenty or more and it becomes a strong association.
The good news is that you do not need every review to be keyword-rich. Even if half your reviews are short "great job" messages and half contain detailed descriptions of the work, the detailed ones still carry weight. Google aggregates across all your reviews.
Focus on getting a steady flow of reviews over time rather than a burst. Two or three reviews per month, with at least one or two containing specific details, is enough to build meaningful keyword signals within a few months. Our guide on how many Google reviews you need to rank covers the numbers in more detail.
Responding to Reviews With Keywords
When you reply to a review, your response text also gets indexed by Google. This is an opportunity to naturally reinforce keywords.
If a customer writes "Great job fixing our boiler," you could reply: "Thanks for the kind words, Sarah. Glad we could get your boiler back up and running quickly. Boiler breakdowns in winter are stressful, so we always try to prioritise emergency heating repairs across the Rhyl and Prestatyn area."
That reply naturally includes "boiler," "emergency heating repairs," "Rhyl," and "Prestatyn", all of which become associated with your listing. Just make sure your replies sound genuine and conversational. Do not stuff them with keywords to the point where they read like an SEO exercise. For more on replying to reviews effectively, see our guide on responding to negative reviews, the principles apply to positive reviews too.
The Long Game
Review keywords are not an overnight fix. They build over months and years as genuine customers share their experiences. But that is also what makes them so powerful. they are nearly impossible for a competitor to replicate quickly. A business with 80 detailed reviews mentioning specific services and locations has a keyword advantage that would take a new competitor years to match.
Start today. Send a review request to your last five happy customers. Mention the specific work you did in your message. Make it easy with a direct review link. Then do the same after every job.
Want to see how your reviews compare to competitors in your area? Get a free Google Business Profile audit from Local Markers. We analyse your review count, keyword content and overall profile strength. then show you exactly where you stand and what to improve. It is free and it could change how many leads Google sends you.