Most local searches end before anyone opens a website. Someone types "electrician near me," sees a short stack of businesses on the map, glances at the stars and the hours, and taps one. That whole decision happens in the Google Business Profile - the little panel of details, reviews, and photos - and for a service business it's often doing more of your selling than your actual site is.
Which is why the mistakes on it are so expensive. Not because they look bad. Because your profile still looks fine, so you never think to check it, while it quietly routes ready customers to the competitor two listings down.
The wrong category is the costly one
Your primary category is the single biggest lever on whether you show up in the map pack, and it's the one owners get wrong most often. Whitespark's 2026 survey of local SEO specialists named a poor primary category the second most common reason businesses rank badly in local results.
How much does it move? In a local-SEO firm's case, one HVAC company switched its primary category from "Air Conditioning Repair Service" to "Air Conditioning Contractor" - a change that sounds like a synonym - and dropped from the #1 spot to #31 in local rankings. Same business, same trucks, same reviews. One dropdown, thirty places.
The fix is to pick the most specific category that describes what you actually do, not the broadest one that feels safe. Then add every secondary category that genuinely applies. Google offers over 4,000 of them and adds more constantly, so the right one for your trade may not have existed when you first set up the profile.
An incomplete profile reads as an inactive business
A half-filled profile tells Google - and the customer - that the business might not be paying attention. Every blank field is a missed chance to match a search. Hours, service area, services listed, a real description, the phone number, the website link: all of it is a signal, and all of it is free.
Two blanks cost more than the rest. Hours, because "open at the time of the search" is one of the strongest individual ranking factors there is - if you run an answering service or take calls after hours, your listed hours should reflect that coverage, not just the office clock. And attributes, the checkboxes like licensed, insured, free estimates, veteran-owned. Those last ones matter more than they used to, and here's why.
Your profile is now a data feed for Google's AI
The reason attributes suddenly count: Google's Gemini reads them directly when it answers conversational searches. When someone asks for "a licensed electrician that offers free estimates near me," the AI isn't guessing - it's pulling from the attributes, services, and posts on profiles like yours. We've written about how AI is starting to do the recommending; your Business Profile is one of the specific places it reads to do it.
That reframes the whole thing. A profile isn't a digital phone-book entry you set once. It's a live data source that both the map pack and the AI consult every time someone nearby needs what you sell. Which is exactly why the last mistake is the quietest.
"Set it and forget it" is the mistake underneath all the others
Nearly every profile starts strong and then goes still. No new photos, no posts, an unanswered question sitting in the Q&A, a review from three weeks ago with no reply. Google reads that stillness as a business that's less active, and therefore less worth surfacing.
Staying active doesn't take much. A few current photos of real work. An occasional post. A reply to every review, good or bad, because the next reader is judging how you handle things. And a genuine answer to any question that shows up before a competitor answers it for you. Fifteen minutes a month keeps the profile reading as a business that's paying attention - which, to Google, is a business worth recommending.
Where to start
If you only do one thing this week, check your primary category against what customers actually type. It's the highest-leverage fix on the list and the one most likely to be quietly wrong. After that, fill every empty field and turn on every attribute that honestly applies.
None of this is a redesign or a monthly bill. It's an hour, most of it one-time, on the single asset that decides whether a "near me" search ever becomes your phone ringing.