My 1966 ranch in Riverside teaches me the same lesson every September: dry heat pushes ants inside hunting for water, and the hard water leaves its own mess on the tile besides.
Oakland runs wetter and foggier, but as of mid-September 2026 I’m hearing the same complaint from readers there — ants moving in with the weather shift, roaches turning up in older kitchens with tight crawlspaces. So this one’s for the East Bay.
How I picked these: I read the Google reviews, the BBB files, and Thumbtack or Angi pages where a company had one, all serving Oakland with 50-plus reviews and a Google rating above 4.5, each with a review in the last year so I knew they’re still actually showing up. Standard disclosure, and I mean it: no one on this list paid to be here, and I have no business relationship with any of them. Only one of these three has a license fact on the state contractor board I could find; for the other two, I couldn’t confirm a license number, so I’m not claiming one exists.
1. Certech Environmental Services
Certech’s been at this over fifty years, and the ant reviews read the same way each time: a tech shows up, explains exactly what’s going down and why, and leaves a direct line instead of a dispatch number. One reviewer’s guy, Julian, treated for ants and left his cell so she could follow up herself. Google has them at a flat 5 out of 5 across 80 reviews, and Thumbtack backs it with 4.85 from 150. They lean eco-friendly by design — ask them straight what’s actually in the product before the truck leaves, especially with a dog or a toddler crawling that same floor.
2. ATCO Pest Control
ATCO’s served the Bay Area since 1985 — 41 years — and 777 reviews sitting at 4.9 isn’t a sample you wave off. Their method is IPM: less spraying, more checking every crack an ant could be using to get in, which reviewers describe techs like Angel and Ian doing on their knees rather than just blasting the baseboard. If your place has the gaps an older house collects — old vents, a garage door that doesn’t seal — that habit matters as much as the product itself. Take a photo of the actual trail before you call; it saves you explaining what you can just show them.
3. Pacific Coast Termite Inc.
Pacific Coast started in 2007 in Tustin and has since treated over 20,000 properties, leaning on orange oil and Bora-Care instead of a fumigation tent — useful if you can’t pack up and leave for three days. Reviewers keep mentioning inspectors like Scott and Ron who explain what they found instead of handing over a scary report and vanishing. They’ve got a CSLB license on file, though it’s listed under insulation and acoustical work rather than pest control specifically, so get the actual license number and ask how it applies before anyone touches your walls. Free estimates too, handy when three companies are telling you three different things about the same roach problem.
Who do you actually call
Ants marching across the counter and you want the spray explained before it’s used? Certech. A roach problem that’s dragged on for months and you want minimal chemicals with a long track record? ATCO. Termites showed up alongside the roaches and you don’t want to tent the house? Pacific Coast…