How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%97+56.9Reliability 26%99+25.8Value 15%100+15.2Experts Score= 98Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.98SCORECertech Environmental Services
Walnut Creek, CA · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #15Position by Experts Score among all companies we track in this category. of 86 pest control services · 5.0★ from 96 Google reviews
Report card
Percentile vs other pest control services (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: value and momentum; weakest: satisfaction.
Reviews for your job
Customers hired Certech Environmental Services for 8 kinds of job.
Certech Environmental Services for rodent extermination
Clear ✕All 12 Google reviews tagged “Rodent extermination”
We’ve been using Certech for pest control at our house for several years. We used a bigger commercial pest company before and still had tons of bugs. We’re surrounded by open space so critters are a part of life. Since we switched to Certech the bugs have gone way down. Even the spiders, which seem to be very hard…
Prompt response! Ground squirrel tunneling my retaining wall.
Jordan was really efficient and very helpful. I will definitely continue using their service.
Very professional. Showed them the issue and they took care of it immediately and effectively. Justin was great.
Great service. Justin and his team answered the phone, came out to assess the situation immediately and got right to work. They sealed and protected my attic & crawl space thoroughly. The critters were gone by the time Certech was called, as I had already removed the insulation and replaced duct work. However, they…
Couldn't be happier with Certech's service. Their technician, Jose, is extremely helpful and friendly, always on time, and takes care of any and all of our problems. We are happy to do business with Certech.
Gareth did a great job getting rid of my pest problem and sealing the house off. Friendly service and went above and beyond to make sure all possible entry points to the house were blocked off.
Also see my earlier review 5 Star on work Certech for me with an Ant problem I was not able to solve myself. Unfortunately, I had another occasion recently to need pest control services in connection with a rat problem I was having. We had used a different service provider 9 months or so earlier and had the problem…
Excellent service and work. A tech named Danny helped my family with our pest problem and he was very polite, professional and informative. He was very clear to explain the cause of our issue and the avenues that the pests were using to get into our home. He explained how he was treating it and how we can prevent…
Jonathan is fabulous! He always checks in, is super courteous, and makes sure that we are satisfied with the work performed. Detailed oriented, and focused on solving and preventing our pest problems!
Certech does a wonderful job at our university. They are helpful, considerate, responsive, and efficient, and keep working at an issue until it is resolved. Highly recommend them.
Rating only, no written review.
Price
Bar = middle half of what customers paid · gold mark = category median.
Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Jobs customers hired them for
| Job | Reviews | Category typical |
|---|---|---|
| Ant extermination | 17 | $83–$246 |
| Rodent extermination | 12 | $103–$371 |
| Spider extermination | 8 | $67–$159 |
| Hornet & wasp extermination | 6 | $93–$282 |
| Cockroach extermination | 6 | $81–$246 |
| Flea & mite extermination | 4 | $125–$246 |
| Termite inspection | 3 | $103–$323 |
| Termite extermination | 2 | $214–$426 |
