HVAC and plumbing in San Jose, CA: who shows up online
All 20 San Jose HVAC and plumbing businesses we measured have a website, and every one of the 16 audited sites uses HTTPS and works on mobile. Reviews are strong, with an average rating of 4.8 and a median of 297 reviews. The gaps are in newer signals like llms.txt.
The top 20 hvac and plumbing on Google, measured
- 100%have a website
- 88%of sites use LocalBusiness markup
- 44%of sites publish llms.txt
- 81%of sites run Google Analytics or Tag Manager
- 4.8★average Google rating
- 297median Google reviews
20 businesses from the Google results for “HVAC and plumbing company in San Jose, CA”. 20 list a website; we checked the homepage of the 16 that loaded.
Who ChatGPT recommends
“Who is the best HVAC or plumbing company in San Jose, CA?”
- Sandium Heating and Air Conditioning
- IRBIS Air, Plumbing & Electrical
- TRIO Heating, Air & Plumbing
- Ribbs Plumbing & Sewer
- Cupertino Plumbing
3 of the 20 businesses in the Google results were named. 2 recommendations were for businesses outside that list.
The review leaders
| Business | Rating | Reviews | Named by ChatGPT |
|---|---|---|---|
| Service Champions | 4.8 | 3661 | No |
| IRBIS Air Plumbing Electrical | 4.9 | 1596 | Yes |
| Fuse HVAC, Refrigeration, Electrical & Plumbing | 4.9 | 1392 | No |
| TRIO Heating, Air & Plumbing | 4.9 | 1320 | Yes |
| Crown Plumbing | 4.8 | 1034 | No |
What this means for your shop
Only 44% of audited sites have an llms.txt file, so adding one is a simple way to stand apart from most of your competitors.
LocalBusiness schema is on 88% of audited sites, so a site without it is behind most of this market.
No audited site blocks AI crawlers, so leave your settings open and put your effort into the gaps that remain.
HVAC and plumbing in San Jose: questions
How do I get recommended by ChatGPT in San Jose?
We asked ChatGPT who the best HVAC or plumbing company in San Jose is. It named 3 businesses from our sample and 2 outside it, so a mention is within reach for any shop.
How many reviews do the leaders in San Jose have?
Service Champions leads with 3661 reviews, followed by IRBIS Air Plumbing Electrical with 1596 and Fuse HVAC, Refrigeration, Electrical & Plumbing with 1392. The median across the market is 297.
What are most local sites missing?
The biggest gap is llms.txt, which only 44% of audited sites have. Analytics is on 81% of sites, and LocalBusiness schema is on 88%.
Where does your business stand?
This page shows the market. The free diagnostic shows you: 42 points on your site, your Google profile and what ChatGPT and Claude say about you, with the competitors beating you by name. Usually in under an hour.
Method: HopperCat pulled the top Google results for “HVAC and plumbing company in San Jose, CA” on October 16, 2026, checked each business homepage for HTTPS, mobile setup, LocalBusiness markup, llms.txt, AI-crawler rules and analytics, and asked ChatGPT the question above with web search on. Ratings and review counts are Google's at that date.