Google's latest Search feature, AI Max, arrives already switched on whenever a pest company builds a new Search campaign. It hunts for searches your keywords never covered, writes headlines you never wrote and decides which page each click lands on. Google calls that help. Sometimes it is.
But look at what you're actually handing over. The searches, the words and the landing page: the three things this guide has spent twelve chapters getting right. AI Max is a new hire who wants the keys to the truck, the price sheet and the phone on day one. Some new hires earn that. None of them get it on day one.
So AI Max comes last in a pest control account. Not never. Last, after the rest of the account has shown what a sold plan looks like, and only with rules about what it's allowed to say.
AI Max Is Broad Match With Fewer Fences. It Belongs Last, After the Rest of the Account Is Selling Plans.
Chapter 9 told you to switch AI Max off when you build your first campaign. Here's the reason, and here's when it comes back.
AI Max does three things at once. It matches your ads to searches beyond your keywords, including searches with no keyword match at all. It rewrites your ad text. And it can send each click to whatever page on your site it thinks fits best. Google says it builds all of that from your existing keywords, ads and landing pages, and its features need bidding that aims at conversions.
That's broad match with fewer fences, and it's the opposite of Isolation. The first campaign exists to buy the searches you chose, with ads you wrote, sent to the pest pages you built. AI Max never goes inside it. Isolation stays exact for as long as the account runs.
Where AI Max can earn a place is at the top of the ladder, after Exploration, Performance Max and Demand Gen are all working. By then the account has months of signed plans for Google to learn from, and you know which searches, headlines and pages actually sell. For most pest companies that's late in the first year. A bigger account that piles up conversions quickly can get there sooner. The gate is the same one the rest of the guide uses: real conversion volume, not the calendar.
If your account predates this guide, check it now. Google began moving campaigns that used text customization, the feature once called automatically created assets, into AI Max automatically in September 2026. A campaign you haven't touched in a year may already be running it. It's in each campaign's settings.
AI Max Writes Pest Ads From Your Whole Website, Including the Pages Nobody Has Read in Years.
The part of AI Max that writes copy doesn't stop at the landing page you chose. It reads your site: the service pages, the blog, the old FAQ, the seasonal promotion from two summers ago that nobody took down. Every page on the domain is raw material.
For a pest company, that's a real exposure. A website collects years of copy written by different people for different reasons: an old coupon, a service you stopped offering, a claim nobody would put in an ad today. You'd never approve those lines as headlines. AI Max never asks.
So the first job isn't a setting. It's reading your own site the way AI Max will. A fast way to start: search Google for your domain plus a word you're worried about, such as site:yourcompany.com guarantee, and repeat it for "free," "discount" and any service you no longer sell. Every page that comes back is a page AI Max can quote. Rewrite it, delete it, or keep it out of AI Max with the URL exclusions later in this chapter.
Some of those words carry legal weight in pest control, not just awkwardness. Chapter 14 covers the claims that come with rules attached, from safety claims to "guaranteed" and "bonded." The text guidelines below are how you keep AI Max from writing any of them. But guidelines are a fence, not a cleanup. The site is where AI Max gets its words, so the site is where the cleanup starts, before any fence goes up.
AI Max Will Advertise an Offer You Ended Years Ago. Twenty-Five Banned Words and Forty House Rules Stop It.
Google gives AI Max a set of controls called text guidelines. They cover the copy AI Max writes on its own, and they come in two kinds:
- Term exclusions. Up to 25 words or phrases per campaign that AI Max must never use. Google's own examples are "Cheap," "Unlimited" and "Low cost." They aren't case-sensitive.
- Messaging restrictions. Up to 40 plain-language rules per campaign, such as "Don't imply our products are discounted."
Fill the term exclusions with the words you'd never approve: promises you don't make, services you don't sell, offers that expired, and the claims Chapter 14 flags for your state. Then use messaging restrictions for ideas a word list can't catch: "Don't mention prices or discounts." "Don't promise results in a set number of days." "Don't mention wildlife removal."
Three details decide whether the lists work. Term exclusions are language-specific, so excluding a word in English won't stop its Spanish equivalent; add both if you advertise in Spanish. A term exclusion can't stop prices, and Google says to use the restriction "Don't generate assets with prices" for that. And Google warns that heavy-handed guidelines can knock out good ads along with bad ones. Block what needs blocking, not everything that makes you nervous.
AI Max also takes two targeting controls worth setting on day one. Brand exclusions keep it off searches for brands you don't want your ads next to, and brand inclusions steer it toward the ones you do. And a control Google calls locations of interest, applied ad group by ad group, lets you point its looser matching at the towns and ZIP codes from Chapter 9, so a search about a county your trucks never reach doesn't pull your ad along.
Final URL Expansion Can Send a Termite Click to Your Blog. URL Exclusions Keep It on the Page That Sells.
The third AI Max feature, final URL expansion, lets Google pick the landing page for each click. Chapter 4 built one page per pest so a termite search lands on a termite page with the termite promise on it. Final URL expansion can undo that in a click, sending the searcher to a blog post about swarm season or a service area you stopped covering.
Google lets you exclude pages, by specific address or by rule, at the campaign level. For a pest company, the usual list:
- The blog and news section, which answers questions but rarely sells.
- Careers pages, which attract job seekers, not customers.
- Old promotions and seasonal pages that no longer match an offer you run.
- Any page you're still cleaning up, until it's fixed.
Two cautions from Google's own documentation. If either AI Max or final URL expansion is switched off, the exclusion list stops doing anything. And when AI Max sends a click to a different page, the headline you pinned in Chapter 8 may not show.
Google's Reports Will Say AI Max Worked. Only an Experiment Against Your Current Campaign Counts the Signed Plans.
AI Max will show you results. It always does. The search terms report even adds its own match type labeled "AI Max," so you can see what it reached. The question those reports can't answer is whether those customers would have come in anyway through Exploration.
Before the experiment starts, set AI Max up in this order, because each step protects the one after it:
- Check the conversions. Chapter 1's list has to count signed plans, qualified calls and real inspection requests, not page views or button taps. AI Max learns from whatever you count.
- Clean the site. Fix or remove the pages you found with the site search earlier in this chapter.
- Write the text guidelines. Term exclusions and messaging restrictions go in before AI Max writes a single headline.
- Exclude the pages. Blog, careers and old promotions come off the list of landing pages it can choose.
- Exclude your own brand. Your company name already has its own campaign from Chapter 2, and AI Max shouldn't get credit for customers who were searching for you anyway.
- Point it at your service area. Tie locations of interest to the ZIP codes your routes cover.
Then, and only then, let it run. That's what Google's built-in AI Max experiments are for. Instead of switching it on across the account, run it as a test against your current campaign over the same weeks. Judge it on the conversion list from Chapter 1: signed plans, qualified calls and real inspection requests. Not clicks. Not impressions. Not the dashboard's enthusiasm.
While it runs, read two things every week. The "AI Max" search terms show what it reached that your keywords didn't, and the junk goes on your negative list the same way Chapter 5 built it. And Google's report that lines up each search with the headline and page AI Max chose shows the copy it actually wrote. When a headline slips past your guidelines, add the word to your exclusions that day.
When the AI Max half brings in more signed plans at a cost per plan you'd pay again, keep it running and keep reading its search terms. When it mostly re-buys customers Exploration was already winning, or its headlines need constant policing, switch it off. Nobody gets a prize for using every feature Google ships.
Next: The Words With Legal Strings Attached
Chapter 14 takes on the claims pest control ads love to make, from safety promises to "guaranteed," "bonded" and "licensed." Each one sounds like good ad copy. In pest control, each one can be a legal commitment, and some states write the rules down word by word.
If you're catching up, Chapter 6 explains the broad match AI Max builds on, Chapter 8 writes the headlines worth protecting, and Chapter 9 switches AI Max off at build. The full series is on the pest control guide's home page.
Pest accounts on our Google Ads management switch AI Max on only after Isolation, Exploration and Performance Max are signing plans, and the first thing we give it is a list of words it can't write.
