HVAC and plumbing in Oakland, CA: who shows up online
HopperCat looked at 20 HVAC and plumbing businesses in Oakland. The average rating is 4.8 and the median business has 160 reviews. Reputation is strong, but only 53% of audited sites have LocalBusiness schema.
The top 20 hvac and plumbing on Google, measured
- 80%have a website
- 53%of sites use LocalBusiness markup
- 27%of sites publish llms.txt
- 87%of sites run Google Analytics or Tag Manager
- 4.8★average Google rating
- 160median Google reviews
20 businesses from the Google results for “HVAC and plumbing company in Oakland, CA”. 16 list a website; we checked the homepage of the 15 that loaded.
The review leaders
| Business | Rating | Reviews | Named by ChatGPT |
|---|---|---|---|
| Jazz Heating, Air Conditioning and Plumbing | 4.9 | 4696 | No |
| Albert Nahman Plumbing, Heating, and Cooling | 4.7 | 3399 | No |
| Cabrillo Plumbing, Heating & Air | 4.9 | 1191 | No |
| Bell Brothers Plumbing Heating & Air - Hayward | 4.8 | 1168 | No |
| Albert Nahman Plumbing, Heating, and Cooling | 4.6 | 696 | No |
What this means for your shop
Add LocalBusiness schema to your site, since only 53% of the 15 audited sites have it.
Put a tap-to-call link on every page, because only 67% of audited sites have one.
If you have under 50 reviews, ask recent customers for more, since 4 of the 20 businesses are in that group.
HVAC and plumbing in Oakland: questions
How many reviews do the Oakland leaders have?
Jazz Heating, Air Conditioning and Plumbing leads with 4696 reviews at a 4.9 rating. Albert Nahman Plumbing, Heating, and Cooling follows with 3399 reviews at 4.7.
What are most local sites missing?
Many lack LocalBusiness schema, with only 53% having it. Only 27% have an llms.txt file, and 67% have a tap-to-call link.
Can I get recommended by ChatGPT?
We did not check ChatGPT answers for this market, so we have no data on who it names. None of the audited sites block AI crawlers, since blocksAi is 0%.
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 Oakland, CA” on October 26, 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.