AEO vs GEO vs SEO: What a Plumber Actually Needs to Know

OHM Editorial Team

Somewhere in the last year, the marketing emails in your inbox started sprouting new acronyms. You knew SEO. Now it is AEO, GEO, sometimes LLMO, each presented as the thing you are dangerously behind on, each attached to an invoice.

Here is the calm version, in plain English, from people who do this work daily: the acronyms describe real changes, the changes are related, and none of them requires you to panic or start over. Mostly they require doing the fundamentals better than your competitors, which was always the job.

Ten minutes here will save you from at least one bad contract. That alone makes this the highest-paying reading a busy owner does this month.

Key takeaways

• SEO, AEO and GEO describe real and related changes in how customers find contractors, but none of them requires starting over; mostly they require doing fundamentals better than competitors.
• SEO still books the most direct work today, because high-intent searches like emergency electrician near me still run through results pages and map packs.
• AEO means writing pages that answer real questions directly with clear headings, direct first sentences and structured data, the machine-readable labeling described in Google’s structured data guide.
• GEO makes a company legible and credible to AI models through consistent business facts, recent specific reviews, content that demonstrates expertise, and a site machines can parse.
• A company doing the fundamentals excellently is already doing perhaps four fifths of all three disciplines, because all three feed on content, reviews, machine-readable structure and consistency.
• The practical split is to fund SEO as the workhorse, fold AEO into every page written anyway, and build GEO steadily before it is needed.

SEO: Being Found by the Search Engine

Search engine optimization is the one you know: earning your place when someone searches “drain cleaning near me.” For a local company that means the map pack, the organic results beneath it, your Google Business Profile, your reviews, your city and service pages, and a technically healthy site under it all.

Nothing here got less important. The map pack still books enormous amounts of work, high-intent searches still ring phones, and the entire discipline of local SEO remains the foundation everything newer is built on. Anyone telling you SEO is dead is about to sell you its replacement.

AEO: Being the Answer, Not Just the Result

Answer engine optimization exists because search engines answer questions directly now. Google’s AI Overviews, featured snippets and voice assistants read the web and reply in sentences, not links. AEO is the craft of being the source those answers are built from.

In practice it means pages that answer real questions cleanly and directly, organized so a machine can lift the answer out: clear headings, direct first sentences, and structured data, the machine-readable labeling Google documents in its structured data guide. When a homeowner asks how long a furnace should last and the answer cites a local company, that company did AEO, whether they called it that or not.

GEO: Being Known by the AI Models

Generative engine optimization is the newest layer. When someone asks ChatGPT or another assistant “who should I call about a leaking water heater,” the model composes a recommendation from everything it can read about local companies: websites, reviews, directories, mentions, consistency across all of them.

GEO is the work of making your company legible and credible to those models. Consistent business facts everywhere. Review depth with recent, specific praise. Content that demonstrates real expertise instead of asserting it. A site whose structure machines parse without guessing. We covered what this looks like from the customer’s side in your customers are asking ChatGPT who to call; GEO is the discipline of being in that answer.

The Secret: It Is Mostly One Job

Lay the three side by side and the overlap is the story.

• All three feed on real, specific content. The page that plainly explains sewer scopes serves the searcher, the answer engine and the AI model at once.
• All three lean on reviews. Rankings, answer boxes and model recommendations all draw on what your customers publicly say about you.
• All three require a machine-readable site. Clean structure and schema are the shared plumbing. This is why modern website design treats machines as the third reader alongside customers and Google.
• All three punish inconsistency. Conflicting hours, dead numbers and stale listings undermine you with every system that cross-checks facts.

A company doing the fundamentals excellently is doing perhaps four fifths of all three disciplines already. The remaining fifth is real, technical and worth doing, but it is an extension of the foundation, not a replacement for it.

Which One Books Jobs, and When

A fair question from any owner: which of these actually rings the phone? Today, SEO still books the most direct work, because high-intent searches like “emergency electrician near me” still run through results pages and map packs. That is where the money keyword lives, and it is why the foundation keeps getting first budget.

AEO earns its keep one step earlier in the journey. The homeowner whose question got answered by your material arrives at the decision already trusting you, and trust is most of the sale in the trades. GEO is the growth curve: a small but rising share of customers now starts with an assistant instead of a search bar, and that share only moves one direction. Companies building GEO now are buying position in next year’s market at this year’s prices.

The practical split follows from that: fund SEO as the workhorse, fold AEO into every page you write anyway, and build GEO steadily before you need it. On our side of the table, the last two travel together inside AI search optimization, because they share almost all of their work.

What a Plumber Should Actually Do

Strip the acronyms and the to-do list is refreshingly short, and almost none of it is new work so much as existing work done with more care. Keep your local SEO strong, because it feeds everything above it. Make sure your pages answer questions the way your best tech would explain them at a kitchen table. Keep the review engine running every week. Get your business facts consistent everywhere they appear. Add the structured data layer if your site lacks it, and check periodically what the AI assistants say when asked about your trade in your town.

Then be appropriately suspicious of anyone selling AEO or GEO as a standalone miracle detached from those fundamentals. The acronyms are new; the con of selling complexity to busy owners is not.

And keep the timeline honest in your head. None of this moves in a week. The fundamentals compound over months, the answer engines update on their own schedule, and the models refresh their picture of the web in cycles nobody outside those companies controls. The advantage goes to the company that starts earlier and keeps going, not the one that sprints after reading an alarming email.

Final Thoughts

SEO gets you found by search engines. AEO gets you quoted by answer boxes. GEO gets you recommended by AI models. Three doors, one house, and the house is built from the same materials it always was: real expertise, shown plainly, confirmed publicly, structured readably.

You do not need to master the vocabulary. You need a presence solid enough that every kind of machine, and every kind of customer, reaches the same conclusion about who to call.

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