Analyzing 5,803,3475.8M ReviewsFor 15,98816K Experts

Experts Reviews · Company report
Certech Environmental Services logoHow 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.98SCORE

Certech 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

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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.

SatisfactionSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Certech Environmental Services is better than 97% of pest control services.A
97
ReliabilityReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Certech Environmental Services is better than 99% of pest control services.A
99
Craft & serviceCraft & service · 0% of the scoreGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Certech Environmental Services is better than —% of pest control services.–
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ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Certech Environmental Services is better than 100% of pest control services.A
100
MomentumMomentum · 0% of the scorePenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Certech Environmental Services is better than 100% of pest control services.A
100
Replies to reviewsReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.Certech Environmental Services is better than —% of pest control services.–
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Reviews for your job

Customers hired Certech Environmental Services for 8 kinds of job.

Certech Environmental Services for spider extermination

Clear ✕
Jobs reviewedHow many Google reviews are tagged with this job.8
★ on this jobAverage stars on the reviews where the customer tagged this exact job (Google’s “Services” field).5.00
Usually paidThe price range customers picked most often for this job.$100–120
Category typicalWhat the middle half of customers paid for this job across all companies in the category.$67–$159
Rank for this jobPosition of this company in the Job match ranking for this job among the companies we track.Its Job match: 79/100.How Job match is calculatedBuilt only from reviews Google tagged “Spider extermination”:Stars on this job 55%Number of such jobs 25%Overall Experts Score 20%Stars are pulled toward the category average when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.#49 / 65
Said fairOf customers who rated the price, the share who chose “Great price” or “Reasonable” rather than “Overpriced”.100%

All 8 Google reviews tagged “Spider extermination”

Lauren1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 weeks ago★★★★★

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…

Great priceRodent exterminationSpider exterminationAnt extermination
RDanielle5 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 3 weeks ago★★★★★

Great service done by Jordan! He was amazing start to finish. I appreciate his hard work. We had a TON of spiders that he took care of. I am very pleased with the service I received.

Paid $120–140Reasonable priceSpider extermination
Bonnie4 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

Nico was extremely thorough around the entire perimeter of the yard. Took the time to check under the eaves in front of the house for wasp nests and treated. Also any ants detected all around the house and patio.. I am so pleased with the care. I hope he will be available for my quarterly pest control. Thank you Nico!

Paid $100–120Reasonable priceHornet & wasp exterminationSpider extermination
Jessup6 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★

Very happy with the service - the technician was courteous and very thorough.

Reasonable priceSpider exterminationFlea & mite extermination
SinitalelaLocal Guide · 25 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★

I was recommended Certech thru a friend as I just moved to the Bay Area and wanted to get a gwnwral pest control service and see about what would be needed in the future regularly. I got Daniel who was efficient and informative. He was thorough in his work and answered all my questions without making me feel like I…

Paid $40–60Great priceHornet & wasp exterminationSpider exterminationFlea & mite extermination
Amy2 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited a year ago★★★★★

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!

Great priceRodent exterminationSpider exterminationCockroach extermination
Ellen4 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★

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.

Great priceHornet & wasp exterminationRodent exterminationSpider extermination
Bishal1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★

Amazing experience with Daniel for residential and Sergio for the commercial. Justin, the owner is great to communicate with.

Paid $100–120Great priceSpider exterminationCockroach extermination

Price

$246+112% vs typical pest control services

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.

Great price 47%Reasonable 53%Overpriced 0%Not sure 0%

Jobs customers hired them for

JobReviewsCategory typical
Ant extermination17$83–$246
Rodent extermination12$103–$371
Spider extermination8$67–$159
Hornet & wasp extermination6$93–$282
Cockroach extermination6$81–$246
Flea & mite extermination4$125–$246
Termite inspection3$103–$323
Termite extermination2$214–$426

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