HVAC and plumbing in Riverside, CA: who shows up online
HopperCat checked 20 Riverside HVAC and plumbing businesses, and all 20 have a website. Ratings are strong, with an average of 4.8 and 19 of the 20 rated highly. When we asked ChatGPT who is best, it named 5 companies, and only 1 was in our sample.
The top 20 hvac and plumbing on Google, measured
- 100%have a website
- 73%of sites use LocalBusiness markup
- 33%of sites publish llms.txt
- 67%of sites run Google Analytics or Tag Manager
- 4.8★average Google rating
- 176median Google reviews
20 businesses from the Google results for “HVAC and plumbing company in Riverside, CA”. 20 list a website; we checked the homepage of the 15 that loaded.
Who ChatGPT recommends
“Who is the best HVAC or plumbing company in Riverside, CA?”
- Magnolia Heating & Cooling
- RKM Heating & Air Conditioning
- Hush Air Heating & Air Conditioning
- Sheldon's Heating, Air Conditioning & Plumbing
- Tonkin Plumbing, Inc.
1 of the 20 businesses in the Google results were named. 4 recommendations were for businesses outside that list.
The review leaders
| Business | Rating | Reviews | Named by ChatGPT |
|---|---|---|---|
| All Pro Cooling, Heating, Plumbing & Electrical | 4.8 | 9296 | No |
| NexGen HVAC & Plumbing | 4.7 | 1839 | No |
| First Class Plumbing & AC | 4.9 | 978 | No |
| Sheldon's Heating, Air Conditioning & Plumbing, Inc. | 4.8 | 835 | Yes |
| RT Olson Plumbing, Heating and Air Conditioning | 4.9 | 627 | No |
What this means for your shop
Only 73% of the 15 audited sites have LocalBusiness schema, so adding it is a simple way to stand out from your competitors.
Just 33% of audited sites have an llms.txt file, and 7% block AI crawlers, so check your robots settings and add the file.
Tap-to-call links appear on 87% of audited sites and analytics on 67%, so confirm your phone number is a tel link and you track visits.
HVAC and plumbing in Riverside: questions
How do I get recommended by ChatGPT in Riverside?
We asked ChatGPT who the best company is, and it named 5, including Sheldon's Heating, Air Conditioning & Plumbing. Four of those 5 were outside our sample, so a strong online presence beyond reviews may matter.
How many reviews do the Riverside leaders have?
All Pro Cooling, Heating, Plumbing & Electrical leads with 9296, then NexGen HVAC & Plumbing with 1839 and First Class Plumbing & AC with 978. Sheldon's has 835 and RT Olson has 627. The median is 176.
What are most local sites missing?
Most are missing an llms.txt file, since only 33% have one. LocalBusiness schema is on 73% of audited sites and analytics on 67%, so both leave room to improve.
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 Riverside, CA” on November 3, 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.