# How AI sees PhD Heating & Cooling: HVAC in Chicago, IL

AI Visibility Index. HVAC in Chicago, IL. Week of Friday, July 17, 2026.

Across the questions Chicago, IL customers ask AI about HVAC, PhD Heating & Cooling is recommended by 2 of the four assistants and ranks #29 by share of voice (0.7%).

## At a glance

- Visibility rank: #29 in Chicago, IL HVAC
- Share of voice: 0.7%

## Summary

- Across the questions Chicago, IL customers ask AI about HVAC, PhD Heating & Cooling is recommended by 2 of 4 assistants and ranks #29 by share of voice.
- Perplexity and Google AI Mode consistently name it. ChatGPT and Gemini do not surface it.

## How each assistant sees PhD Heating & Cooling

- ChatGPT: Not named. mentions this business
- Gemini: Not named. mentions this business
- Perplexity: Recommends. Named in 12 of 72 prompts · names and recommends this business
- Google AI Mode: Recommends. Named in 7 of 72 prompts · names and recommends this business

### Customer questions it was named in

- Recommend a good heating and cooling company in Chicago, IL.
- I need emergency furnace repair tonight in Chicago, IL. Who offers 24/7 service?
- Which HVAC company in Chicago, IL is the most reliable and honest?
- Who installs and services heat pumps in Chicago, IL?

## Others in Chicago, IL HVAC

- Deljo Heating, Cooling & Plumbing: 10.2% share of voice, depth 53
- Browns Heating & Cooling: 7.2% share of voice, depth 54
- City & Suburban Heating & Cooling: 6.9% share of voice, depth 46
- Global Heating and Cooling LLC: 6.3% share of voice

## Frequently asked questions

### Does AI recommend PhD Heating & Cooling in Chicago, IL?

PhD Heating & Cooling is recommended by 2 of the four assistants and ranks #29 for share of voice among Chicago, IL HVAC businesses, at 0.7% share of voice.

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Rankings reflect the output of third-party AI assistants (ChatGPT, Gemini, Perplexity, and Google AI Mode) on the dates measured. They are an observed, sourced measurement of how those assistants describe and rank each business, not an endorsement, certification, or rating by Courtyard. AI output changes over time and may be incomplete or inaccurate. Business names and descriptions are taken from the AI responses themselves.

Measured across ChatGPT, Gemini, Perplexity, and Google AI Mode. Snapshot captured Fri Jul 17, 2026. An index by Courtyard.