HVAC and plumbing in Seattle, WA: who shows up online
All 20 Seattle businesses we measured have a website, and the average rating is 4.8. Reviews are deep, with a median of 2050. When we asked ChatGPT for the best company, it named four businesses, and only one was in our sample.
The top 20 hvac and plumbing on Google, measured
- 100%have a website
- 93%of sites use LocalBusiness markup
- 57%of sites publish llms.txt
- 86%of sites run Google Analytics or Tag Manager
- 4.8★average Google rating
- 2050median Google reviews
20 businesses from the Google results for “HVAC and plumbing company in Seattle, WA”. 20 list a website; we checked the homepage of the 14 that loaded.
Who ChatGPT recommends
“Who is the best HVAC or plumbing company in Seattle, WA?”
- Greenwood Heating and Home Services
- Fischer Plumbing
- Olson Energy Service
- Bob's Heating & Air Conditioning
1 of the 20 businesses in the Google results were named. 3 recommendations were for businesses outside that list.
The review leaders
| Business | Rating | Reviews | Named by ChatGPT |
|---|---|---|---|
| South West Plumbing, Heating, Air, & Electric | 4.8 | 11761 | No |
| Seatown Electric Plumbing Heating and Air | 4.8 | 6955 | No |
| BelRed Heating, Cooling, Plumbing & Electrical | 4.9 | 6447 | No |
| Greenwood Heating and Home Services | 4.9 | 4996 | Yes |
| Gene Johnson Plumbing | 4.8 | 4863 | No |
What this means for your shop
LocalBusiness schema is on 93% of the sites we audited, so having it earns you nothing extra and missing it puts you behind.
Only 57% of audited sites have an llms.txt file, which makes it one of the few technical gaps you can still close.
Greenwood Heating and Home Services has 4996 reviews and is the only one of the five review leaders that ChatGPT named.
HVAC and plumbing in Seattle: questions
How do I get recommended by ChatGPT in Seattle?
We asked ChatGPT who the best HVAC or plumbing company in Seattle is. It named four, including Greenwood Heating and Home Services, Fischer Plumbing, Olson Energy Service and Bob's Heating & Air Conditioning.
How many reviews do the Seattle leaders have?
South West Plumbing, Heating, Air, & Electric leads with 11761 reviews. Seatown Electric Plumbing Heating and Air has 6955, and BelRed Heating, Cooling, Plumbing & Electrical has 6447. The median across all 20 is 2050.
What are most local sites missing?
Most basics are covered. Of 14 audited sites, 100% use HTTPS and 93% have LocalBusiness schema. The biggest gap is llms.txt at 57%, then analytics at 86%.
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 Seattle, WA” on October 18, 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.