How often AI search engines name plumbing contractors in Boston when homeowners ask for recommendations. 0% nationwide are invisible.
| # | Company | Score |
|---|---|---|
| 1 | Roto-Rooter Boston — Boston, MA | 60/100 |
| 2 | Vaughan Plumbing & Heating — Boston, MA | 54/100 |
| 3 | Boston Standard Plumbing — Boston, MA | 54/100 |
| 4 | Horvitz Plumbing & Heating — Boston, MA | 51/100 |
| 5 | Roto-Rooter Plumbing & Water Cleanup — Boston, MA | 33/100 |
| 6 | Joe Hurley Plumbing — Boston, MA | 29/100 |
| 7 | Horvitz Plumbing & Heating — Boston, MA | 28/100 |
| 8 | Smith Plumbing — Boston, MA | 26/100 |
| 9 | Smith Plumbing — Boston, MA | 26/100 |
When a Boston homeowner asks ChatGPT, Perplexity, or Gemini "best plumbing near me", the engine names 3 to 5 specific companies. The companies on the leaderboard above are the ones being named. Everyone else is invisible to that query.
The gap is almost entirely mechanical: schema markup, citation density in local trade directories, structured content on the site, and presence in Reddit + Quora threads for Boston service queries.
Run a free 90-second audit and see your AI Visibility Score against the index above.
Run my auditPart of The 2026 AI Visibility Index for Trade Contractors. These rankings are computed from 30 LLM queries x 4 engines using Methodology v2026.06.1. CC-BY-4.0.