What LLMs cite
Who should I call for Residential and commercial plumbing services in Modesto?
From recent prompt runs · Modesto, CA · Updated September 11, 2026
GEOGrow tested this high-intent customer question across Claude, Gemini, and ChatGPT. Rankings below show which companies appeared most often in those responses — not who is independently the best.
Top brand
Herk’s Plumbing
Leads across all key metrics
AI engines mentioning
2 of 3
Herk’s Plumbing appears in 2 of 3 AI engines
#1 recommendations
1
Herk’s Plumbing was the #1 recommendation once.
AI answer share
67%
Herk’s Plumbing appears in 67% of answers in our tests
Top AI Answers
Which companies appear most often in AI responses?
Updated September 11, 2026
| # | Company | AI engines mentioning | #1 recommendations | AI answer share |
|---|---|---|---|---|
| 1 | Herk’s Plumbing Claim your company | 2 of 3 | 1 | 67% |
| 2 | Roto-Rooter Modesto Claim | 1 of 3 | 1 | 33% |
| 3 | Roto-Rooter of Modesto Claim | 1 of 3 | 1 | 33% |
| 4 | Noble Plumbing Claim | 2 of 3 | 0 | 67% |
| 5 | Knights Plumbing and Drain Claim | 1 of 3 | 0 | 33% |
| 6 | Tony’s Plumbing Service Inc. Claim | 1 of 3 | 0 | 33% |
| 7 | Mainline Plumbing Inc. Claim | 2 of 3 | 0 | 67% |
| 8 | Motherflushers Plumbing Claim | 1 of 3 | 0 | 33% |
What Each AI Recommended
Recent answer snapshots by engine.
ChatGPT
- 1. Herk’s Plumbing
- 2. Tony’s Plumbing Service Inc.
- 3. Mainline Plumbing Inc.
- 4. DeHart Plumbing, Heating, and Air Inc.
- 5. ABP All Bay Plumbing
- 6. Premium Plumbing & Drain, Inc.
+5 more in this answer
Gemini
- 1. Roto-Rooter of Modesto
- 2. Noble Plumbing
- 3. Motherflushers Plumbing
- 4. Valley View Plumbing
- 5. DeHart Plumbing, Heating, and Air Inc.
- 6. Tony's Plumbing
+4 more in this answer
Claude
- 1. Roto-Rooter Modesto
- 2. Knights Plumbing and Drain
- 3. Noble Plumbing
- 4. Mainline Plumbing Inc.
- 5. Valley View Plumbing
- 6. DeHart Plumbing, Heating & Air
+5 more in this answer
What LLMs cite
Sources cited in the most recent prompt runs for this question. The mix varies by engine.
- expertise.com 9 Best Modesto, CA Plumbers | Expertise.com
- motherflushers.com Top 5 Plumbing Companies in Modesto: Trusted Services
- yelp.com THE BEST 10 PLUMBING IN MODESTO, CA - UPDATED SEPTEMBER 2026 - YELP
- nobleplumbers.com Home | Noble Plumbing | The Trustworthy Plumbers
- rotorooter.com Plumber Modesto | Plumbers Near Me | Roto-Rooter
- valleyview.plumbing Modesto plumber | Plumbing repair | Valley View plumbing
- yellowpages.com Best 30 Plumbers in Modesto, CA with Reviews | The Real Yellow Pages®
- 3dgreenplumbing.com Full Service Plumbing in Modesto, CA | 3D Green Plumbing
Related questions
See how this market performs for the questions customers are asking AI.
- Best emergency plumbing or dry well drilling Benjamin Franklin Plumbing
- Who are the best Plumbings in Southern Utah? Element Plumbing, Heating & Air
- What is a reputable Residential and commercial plumbing services company in Southern Utah? Element Plumbing, Heating & Air
- Who should I call for emergency plumbing or dry well drilling in Modesto, California? Castle Well Drilling
- Who are the best plumbers in Modesto, California? Herk's Plumbing
- Which plumbing companies in Modesto, California are known for reliable service? DeHart Plumbing, Heating & Air
- Who are the best plumbers in Modesto, CA? Tony's Plumbing, Heating & Air
- Which plumbing companies in Modesto, CA are known for reliable service? Tony's Plumbing, Heating & Air
- Who should I call for emergency plumbing or dry well drilling in Modesto, CA? Teeples Plumbing & Drilling, Inc.
Markets move fast once AI patterns set in.
Who's Winning in AI?
AI Leaderboard · Based on this buyer question
Herk’s Plumbing currently leads this conversation. AI visibility leadership is valuable — but competitive markets shift fast.
Herk’s Plumbing currently leads this conversation.
- #1 Herk’s Plumbing 67%
- #2
- #3
- #4 Noble Plumbing 67%
- #5
- #6
- #7
- #8
Get ahead of the competition
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How We Measure AI Answer Share
AI Answer Tracker by GEOGrow measures how companies appear when high-intent customer questions are asked across supported AI platforms. Results are observational snapshots and can vary by model, location, personalization, source availability, and date.
AI Answer Share is weighted recommendation appearances divided by all possible recommendation opportunities. Rankings shown here represent the responses collected during the stated research period and are not endorsements by GEOGrow. Method: 3 independent AI observations.
- Question tested
- Who should I call for Residential and commercial plumbing services in Modesto?
- Market
- Modesto, CA
- AI engines
- Claude, Gemini, and ChatGPT
- Research date
- September 11, 2026
Winning one AI answer isn't enough.
AI recommendations can change depending on where a customer is located. GEOGrow's Local GEO technology measures AI visibility across ZIP codes, cities, neighborhoods, and service areas.