We tested the public websites of 33 heating and air conditioning companies that advertise service in Pasadena, CA, using Google PageSpeed Insights, on October 18, 2026. When the AC or heat stops, people search on a phone and call quickly. A slow page or a phone number they can't tap sends that call elsewhere.
Largest Contentful Paint, Google PageSpeed Insights mobile lab test, one run per homepage.
*Of the 33 sites that show a phone number on the homepage.
Ranked by how fast the main content appears on a phone (ties go to the higher mobile score).
| Site | Main content on phone | Mobile score | Tap-to-call | Meta description |
|---|---|---|---|---|
| Site 11 | 4.8 s | 72 | Yes | No |
| Site 12 | 5.0 s | 60 | Yes | Yes |
| Site 13 | 5.1 s | 77 | No | Yes |
| Site 14 | 8.3 s | 56 | Yes | Yes |
| Site 15 | 8.5 s | 58 | Yes | Yes |
| Site 16 | 9.1 s | 50 | Yes | No |
| Site 17 | 9.2 s | 48 | Yes | Yes |
| Site 18 | 9.7 s | 41 | Yes | Yes |
| Site 19 | 10.1 s | 58 | Yes | Yes |
| Site 20 | 11.3 s | 62 | Yes | Yes |
| Site 21 | 12.4 s | 53 | Yes | No |
| Site 22 | 13.2 s | 46 | Yes | Yes |
| Site 23 | 13.5 s | 36 | Yes | Yes |
| Site 24 | 14.8 s | 36 | Yes | Yes |
| Site 25 | 15.8 s | 59 | Yes | Yes |
| Site 26 | 17.6 s | 56 | Yes | Yes |
| Site 27 | 17.9 s | 49 | Yes | Yes |
| Site 28 | 20.9 s | 30 | Yes | Yes |
| Site 29 | 21.8 s | 33 | Yes | Yes |
| Site 30 | 25.9 s | 56 | Yes | Yes |
| Site 31 | 27.0 s | 52 | Yes | No |
| Site 32 | 27.5 s | 30 | Yes | Yes |
| Site 33 | 42.1 s | 49 | Yes | Yes |
Which sites: businesses that came up in public web searches for "HVAC / AC repair / heating" plus "Pasadena, CA" (October 2026), with directories and review sites (Yelp, Angi, HomeAdvisor and similar) left out. Each business is counted once, by its website. Some companies are based nearby and advertise Pasadena service; referral networks that pass calls to other companies were removed. This isn't a random sample of every business in Pasadena.
Speed: Google PageSpeed Insights (Lighthouse) mobile and desktop tests of each homepage, one run each, on October 18, 2026. "Main content on phone" is Largest Contentful Paint; Google calls 2.5 seconds or less good. Lab tests vary from run to run, so treat single numbers as a snapshot, not a verdict.
Homepage checks (read from the public homepage): a tap-to-call (tel:) link when a phone number is shown, a meta description, and HTTPS. Sites that didn't load, that Google couldn't test, or that showed a bot-check page instead of the homepage are left out (2 of 35 found).
What this is not: it doesn't rate the quality of anyone's work, and it doesn't measure Google rankings, reviews or sales.
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