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How Do You Get Your Plumbing Business Recommended by ChatGPT?

By Ansh Singh · Updated November 8, 2026 · 8 min read

Short answer: No one can buy a spot in ChatGPT's plumber answers. The studies we found point to the same things: lots of real Google reviews, a complete and claimed business profile with photos, a site that states your services and towns in plain text, and not blocking OpenAI's search crawler. Those are correlations, not guarantees.

Key facts

OpenAI publishes no ranking recipe for local businesses, so nobody outside the company knows exactly how it chooses.
In the Zarla study, ChatGPT named 35.6% of listings, AI Mode 18.4%, and only 9.8% were named by both.
In the Insites study, businesses surfaced by both ChatGPT and Perplexity averaged about 133 reviews, against about 11.
OpenAI says sites that opt out of OAI-SearchBot will not be shown in ChatGPT search answers.
In a Scorpion survey, 22% of homeowners use AI tools such as ChatGPT and 87% avoid businesses below 4 stars.
These studies show correlations, not causes, and none covers plumbers alone.

Homeowners now ask AI tools who to call. That is new, and the data is thin. This guide sticks to what has been measured and tells you where the evidence runs out.

Are homeowners really asking ChatGPT for a plumber?

Some are. Scorpion's 2026 State of Home Services Marketing Report, based on 2,000 homeowners, found that 22% use AI tools such as ChatGPT to research or find recommendations, and that 87% will not hire a business rated below 4 stars (ACHR News on the Scorpion report, 2026). So being named is the start. The homeowner then looks at your reviews and probably your site.

For a plumber, wrong hours or a wrong phone number is a lost emergency call. That is a reason to keep your details the same everywhere.

How does ChatGPT choose which plumber to name?

We found no ranking recipe published by OpenAI for local businesses, so nobody outside the company knows exactly. What we have are studies that compare businesses the AI named with ones it did not.

Review count was the biggest gap. Zarla looked at 1,851 business listings across 10 trades, including plumbers, in 10 US cities, and checked whether ChatGPT and Google's AI Mode named them. ChatGPT named 35.6% of those businesses and AI Mode 18.4%. Only 9.8% were named by both. Businesses named by at least one assistant had a median of 444 Google reviews against 192 for the rest. Median ratings were 4.9 and 4.8 stars (Zarla: AI Visibility Index (2026)). Zarla reports these across all trades together, not plumbers alone.

A complete, claimed profile showed up too. Insites tested 10,000 US local businesses on ChatGPT and Perplexity. Businesses surfaced by both averaged about 133 reviews, and those surfaced by neither averaged about 11. Among the ones surfaced by both, 91.5% had a claimed profile, 88.9% had photos and 77.8% had a complete profile. For the ones surfaced by neither, the numbers were 38.2%, 34.8% and 31.5% (Insites, 2026).

These are one-off studies. They show what goes with being named, not what causes it. Still, they agree with each other on the main point.

What can a plumber do about it?

Here is the work, in the order we would do it.

Job	Why it matters	Where to start
Get more real reviews	Review count was the clearest gap in both studies	How many Google reviews a plumber needs
Claim and fill out your profile	Claimed, complete, photos: all higher among named businesses	Getting on Google
Say what you do on your site, in text	AI tools read text, not pictures of text	What a plumbing website should include
Let OpenAI's search crawler in	Blocked sites are left out of ChatGPT search answers	See below
Keep your details the same everywhere	Wrong details cost calls	Name, phone, hours, towns

Make the site answer plumbing questions in plain words

A person asking ChatGPT does not type "plumbing contractor". They type "who can fix a water heater that is leaking from the bottom" or "drain cleaning near me on Sunday". Your pages should answer those the way you would answer a customer on the phone.

Write short pages for each job: water heater repair and replacement, drain cleaning, leak detection, sewer line problems, repiping, toilet and faucet work, sump pumps if you do them. On each, say what the job is, what causes it, what you do on a visit, how long it takes, and when it is an emergency. If you quote ranges, label them as your own ("our typical range") and keep them honest.

Then say where you work. Put the real town names in text, and give a page to your biggest towns (service area pages for plumbers). Add your license number if your state has one. Rules differ a lot. For example, Ohio has a state plumbing contractor license, but its law leaves residential buildings out of the covered projects, so home work there falls to local rules (Ohio Revised Code chapter 4740). Check your own board.

Do not block the crawler that feeds ChatGPT search

OpenAI runs three crawlers. OAI-SearchBot is for search. OpenAI says sites that opt out of it will not be shown in ChatGPT search answers, and it recommends allowing it. GPTBot is a separate crawler, and disallowing it tells OpenAI not to use your content to train its models. ChatGPT-User handles visits triggered by a user's request (OpenAI: Overview of OpenAI crawlers).

Many site builders and security plug-ins add a rule that blocks all bots. Open yourwebsite.com/robots.txt and look for a line that blocks OAI-SearchBot or blocks everyone. Changes can take about 24 hours to take effect, per OpenAI. Our hub guide on robots.txt and AI crawlers shows what to look for.

Get listed where assistants look

We could not confirm from OpenAI which listings ChatGPT draws on. A claimed Bing Places listing and a Yelp page with correct details cost little, so they are cheap insurance. They take an hour each. See Bing Places for contractors.

How do you check whether ChatGPT names your plumbing company?

Step 1: Write five real questions

Use the way a homeowner would ask. For example, for a plumber in Tulsa, Oklahoma (an example town): "best plumber in Tulsa", "emergency plumber in Tulsa open now", "who replaces water heaters in Broken Arrow", "how much does drain cleaning cost in Tulsa", "plumber near me".

Step 2: Ask each one in a fresh chat

Use ChatGPT with search turned on. Start a new chat each time, so earlier answers do not color the next one.

Step 3: Record what you see

Write down who is named, in what order, and which sources are cited. Do this on two or three different days. Answers change.

Step 4: Look at the winners

Open the profiles and sites of the plumbers who are named. Compare review counts, photos and how clearly their site states services and towns. That tells you what to fix first.

Step 5: Repeat once a month

Keep the same five questions and a simple note of the result. Our hub guide on checking whether ChatGPT recommends your business has a longer method.

What should you not do?

Do not pay for fake reviews. The reviews have to be real. Google says offering incentives in exchange for reviews is strictly prohibited (Google Business Profile help: Ask for reviews).
Do not trust anyone who guarantees a ChatGPT ranking. We found no published way to buy or force one.
Do not spend months on one assistant. The same reviews, profile and site also feed Google's AI answers. Google says there are no extra requirements for AI Overviews or AI Mode beyond being indexed and eligible for Search (Google Search Central: AI features).

Where does the evidence stop?

Zarla collected its data on 24 August 2026, so it is a snapshot of one month, and it counted 28.31% of mentions as ambiguous and left them out of the named group. Insites says its own results are correlations, not proof that reviews cause AI recommendations. It also found that average rating barely changed across its top three recommendation tiers, while review volume did, which fits the idea that count matters more than a perfect score. Keep asking every customer for a review, and do not chase a flawless 5.0.

We do not know how much weight ChatGPT gives to any single factor. We do not have a plumber-only study. The Zarla study found little overlap between ChatGPT and Google's AI Mode, so being named in one does not mean being named in the other. Answers also change from day to day. The honest plan is to do the basics that every study points to, and to measure your own results monthly.

For the wider picture, read our hub guide on getting recommended by ChatGPT as a contractor, and our plumber-specific SEO guide. If you want the site and the ongoing work handled, you can see a free demo site.

Common questions

Can I pay to be listed in ChatGPT for plumbers?

Not that we could find. We found no paid placement for local business answers in the sources we checked. Be wary of any offer that claims otherwise.

Does ChatGPT use Google reviews?

The studies above count Google reviews and find a link with being named. We could not confirm how ChatGPT gets review data. Collecting Google reviews is still worth doing, because Google is where most homeowners look.

Should I block GPTBot?

You can. Blocking GPTBot only stops training use, per OpenAI. Do not block OAI-SearchBot, because that one decides whether your site can appear in ChatGPT search answers.

How long until ChatGPT recommends me?

Nobody can say. OpenAI notes that crawler changes can take about 24 hours to take effect, but reviews and mentions build over months. Check monthly and look for movement over a quarter.

Sources

About the author

Ansh Singh runs Contractor Websites. He builds websites for electricians, plumbers, roofers and other home service trades, and writes the guides on this site. More about Ansh Singh.

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