| Company | Share of responses | Answer Share | Citation Share |
|---|---|---|---|
| Sanders Heating & Cooling / Sanders Home Comfort | 51.6% | 1.6% | |
| Carolina Heating Service | 48.4% | 0.3% | |
| Apollo Air Heating & Cooling | 45.3% | n/d | |
| Preferred Choice Heating and Air | 37.5% | 1.0% | |
| Tuck & Howell Plumbing, Heating & Air | 29.7% | 1.3% | |
| Ted Cook Heating | 29.7% | 0.2% | |
| Ethridge Heating and Air | 28.1% | n/d | |
| Cape Fear Air, Electric, & Plumbing | 18.8% | n/d | |
| Eastergard HVAC | 17.2% | 0.3% | |
| Palmetto Heating & Air | 15.6% | 0.3% | |
| Air Comfort Experts | 10.9% | n/d | |
| Baker Brothers Plumbing, Air & Electric | 10.9% | n/d |
Every week, the same frozen set of 4 question phrasings is sent to OpenAI, Anthropic, Google Gemini, and Perplexity — through each provider’s official API, with active web search, never through a consumer chat interface.
Same market, same questions, repeated on a fixed schedule — not a single sample. No AI model is paid or influenced; this page reports what each one already says.
Answer Share — the share of measured responses that name a given company. 55.6% means the company appeared in 55.6% of the responses collected for this market.
Market concentration — the share of responses naming at least one of the top 3 companies: how fragmented or concentrated the answers are for this market.
Citation Share — the share of citations linking directly to a company’s own website, among companies whose domain we’ve matched. Shown as n/d where we haven’t matched a domain, or 0% where the domain is known but never cited directly — AI models often cite a review aggregator instead of the company’s own site.
The date at the top of this page is when this market was last measured. Numbers refresh weekly.