I searched on mobile, so no ad blocker. There were no ads for that query, and all of the content up to maybe the 5th result was an acceptable answer to the query (i.e. on a site that wasn't plastered with ads)
If I search "plumber" the first 3 results are ads.
Searching "how to fix a leaky faucet" on Google turned up the page from "This Old House" immediately (top 3 results, top 2 were wikiHow and a YouTube video that seemed OK at a glance).
I'm not sure why my personal results are often so much better than posts like this one whenever I do the experiment - maybe it's based on location?