Google AI Mode vs Traditional Search for Home Services

The adoption numbers come from Google itself, on the record. On the Q2 2025 earnings call, CEO Sundar Pichai put AI Mode at over 100 million monthly active users across the US and India — against 2 billion monthly users for AI Overviews. By the Q4 2025 earnings call, the usage pattern had sharpened: daily AI Mode queries per user in the US had doubled since launch, and Google shipped over 250 product launches across AI Mode and AI Overviews in that quarter alone.

Two behavioral details from those same remarks matter for a home-services business. First, queries in AI Mode are three times longer than traditional searches — people type "my AC is blowing warm air and the outdoor unit is making a clicking noise, what's wrong and who should I call" rather than "ac repair." Second, nearly one in six AI Mode queries are non-text — spoken or photographed. A homeowner pointing a camera at a frozen refrigerant line is a search your service pages never saw coming.

Google's own documentation for site owners describes where AI Mode fits: it is "particularly helpful for queries where further exploration, reasoning, or complex comparisons are needed." That is the research phase of hiring a contractor — comparing heat pump vs furnace replacement, weighing repair against replacement, shortlisting companies. The emergency "water heater burst" search still resolves fastest through classic results and the map pack. AI Mode is absorbing the deliberation end of home-services discovery first.

Here is the shape of the difference, using only what Google and the two largest vendor studies have published:

Google's site-owner documentation confirms both AI Overviews and AI Mode may use fan-out, and adds the consequence in plain terms: the technique lets Google "display a wider and more diverse set of helpful links" than a classic search — and because the two features "may use different models and techniques," the links they show will vary.

The vendor data measures how far that variance goes. Semrush's July 2025 study of 5,000 keywords and 150,000+ citations found AI Mode's citations overlapped Google's top-10 organic results at roughly 54% at the domain level and 35% at the URL level — the loosest relationship of Google's own surfaces. For comparison:

Source: Semrush AI Mode study, July 2025 — vendor research, not a Google-published metric.

Read the AI Mode row carefully: about half the domains it cites come from the top 10, but only about a third of the URLs do. AI Mode trusts many of the same websites and then reaches deeper into them — a specific troubleshooting article or FAQ page instead of the homepage that ranks. Semrush's format data shows the same split within AI Mode itself: 92% of responses carried a link sidebar averaging seven unique domains (versus three in AI Overviews), while the 7% of responses with additional links below the answer hewed close to classic rankings — 89% domain and 80% URL overlap.

The divergence is just as sharp against Google's other AI surface. Ahrefs analyzed 730,000 response pairs (September 2025 US data) where the same query produced both an AI Overview and an AI Mode response. The two agreed on substance — 86% semantic similarity — while citing the same URLs only 13.7% of the time. Only 16% of their words overlapped, and they opened with the same first sentence in just 2.51% of cases. Two Google systems, one question, near-identical conclusions, almost entirely different sources.

For a business, the entity findings in that study cut both ways. AI Mode responses run roughly 4x longer and mention 3.3 people or brand entities on average versus 1.3 in AI Overviews — more room for your company's name to appear. And when a brand earns a mention in an AI Overview, it also appears in the corresponding AI Mode response 61% of the time, but alongside additional competitors that didn't make the shorter answer's cut. More exposure, more company.

The honest summary: AI Mode neither mirrors the rankings nor ignores them. Domains that rank widely get retrieved more often — Semrush found a strong domain-level correlation between top-10 rankings and AI citations — but which page gets cited is decided by fan-out retrieval, not by position one.

That number deserves its qualifier: 13.49% comes from a 5,000-keyword sample spanning all query intents, not a local-services-only panel. Nobody has published an HVAC-specific AI Mode local-pack rate yet. What the number does establish is that Google carried its local infrastructure into AI Mode rather than replacing it — your Google Business Profile is a citation source for AI answers, not a legacy asset.

Google says as much in its own guidance. The SEO best practices list for AI features explicitly includes "checking that your Merchant Center and Business Profile information is up-to-date" — the only place a specific Google product gets named in that list. The reviews, categories, photos, and hours that win the classic map pack feed the same machine that populates AI Mode's local results. That work sits in our local SEO scope for HVAC companies precisely because it now pays on two surfaces at once.

The forward-looking piece is agentic. At I/O, Google announced agentic capabilities coming to AI Mode — starting with event tickets, restaurant reservations, and local appointments. Google named booking partners for the launch categories; home services was not among them. But the direction is explicit: AI Mode is being built to complete local transactions, not just describe them. A contractor whose booking flow only works for a human filling out a form is worth stress-testing against that trajectory.

What the data does not support: claims that AI Mode has killed the map pack. Emergency and "near me" searches still run through classic results, where the pack still renders. The measured change is additive — a second, conversational surface where local visibility gets decided by different mechanics.

Two caveats keep that finding honest. The test site carried an Authority Score of 84 — an established domain with years of trust; a contractor site should expect slower pickup, not 24-hour citations. And the volatility matches what Ahrefs found on Google's other AI surface, where 45% of AI Overview citations changed between generations of the same answer. An AI Mode citation is a rolling audition, not a ranking you hold.

Three more early patterns bear directly on home-services visibility:

• Commercial questions get the long answers. Across the platforms Semrush tested, commercial and transactional queries triggered responses roughly twice as long as informational ones. "Best HVAC company for a heat pump install" produces a fuller, more source-hungry answer than "what is a heat pump" — which means more citation slots on exactly the queries that precede a purchase.
• Third-party surfaces carry unusual weight. Reddit, YouTube, and Facebook appeared in over 68% of AI Mode results that included additional links in Semrush's data. What homeowners say about contractors on community platforms is raw material for AI Mode answers — a reputation layer no service page substitutes for.
• Longer answers surface more businesses. Ahrefs measured 34.66% of AI Mode responses containing no brand entities at all, versus 59.41% for AI Overviews. AI Mode names companies almost twice as often — being nameable, consistently, across the web is what converts that into visibility.

What does not yet exist anywhere, from any vendor: published data on how often AI Mode cites HVAC contractors specifically, or which sources it pulls for HVAC service queries. That gap is why we run our own recurring sampling of AI answers for HVAC queries — the HVAC AI visibility report we are building from that panel will publish the numbers rather than assert them. Until trade-specific data exists, the studies above are the floor you can plan on, and anyone quoting an "HVAC AI Mode citation rate" should be asked where it came from.

1. Confirm the eligibility gate. Indexed, snippet-eligible, no stray noindex or nosnippet on service pages. If a page can't appear in classic search, no AI surface can cite it — full stop.
2. Clear the crawl path, including your CDN. Google's best-practices list leads with allowing crawling "in robots.txt, and by any CDN or hosting infrastructure." Firewall defaults block bots silently; our five-minute crawler access test covers the same failure layer for every AI crawler family, Googlebot included.
3. Build pages that answer the fan-out's sub-questions. AI Mode decomposes "should I repair or replace a 12-year-old AC" into cost, lifespan, refrigerant, and sizing sub-queries. A page that answers one of those directly — heading, straight answer, evidence — is retrievable for it; a thin overview page answers none of them. This is where the three-times-longer conversational query becomes an advantage for specific content.
4. Keep the Business Profile current. Google's own AI-features guidance names it; the 13.49% local-pack rate shows why. Categories, services, hours, photos, reviews — the profile is now source data for AI answers.
5. Earn a presence where AI Mode already looks. Reddit threads, YouTube, community groups — the 68%+ figure above. Real participation and real reviews, not planted mentions; businesses earn citations from the footprint others write about them.
6. Measure it honestly. Search Console reports AI Mode clicks inside the overall "Web" type with no breakout, so first-party attribution is genuinely limited. Recurring sampled prompts, tracked over time, are the working method — directional evidence, reported as such. That measurement discipline is the backbone of how we build AI-answer visibility for HVAC companies: access audit, answer-shaped content, profile and reputation work, and a citation-sampling loop — sold as a program with measurement, never as a promised placement.

And the line we put in writing because the volatility data demands it: nobody controls AI Mode's output. A vendor guaranteeing your company a spot in AI answers is guaranteeing a system that re-decides its sources between generations of the same answer. The evidence supports raising your odds; it does not support promises.