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 55%71+38.7Reliability 24%60+14.5Value 14%100+14.1Replies to reviews 7%62+4.4Craft & service penalty96−0.4Momentum penalty46−5.4Experts Score= 66Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.66SCOREA-1 Certified Environmental Services
San Francisco, CA · Grade BLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #76Position by Experts Score among all companies we track in this category. of 84 hazardous material removal · 4.8★ from 53 Google reviews
Report card
Percentile vs other hazardous material removal (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 craft & service; weakest: momentum.
Reviews for your job
Customers hired A-1 Certified Environmental Services for 2 kinds of job.
A-1 Certified Environmental Services for indoor allergen sampling
Clear ✕All 2 Google reviews tagged “Indoor allergen sampling”
Good pre-call discussion with Carl. Professional testing via Keenan. Both promised a follow-up discussion after the test results were delivered. Nothing. I emailed asking for a time to speak. Received a form email response from admin. Received test results 2 weeks ago, still haven't connected.
Rating only, no written review.
Price
Not enough reviews with a price yet.
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 |
|---|---|---|
| Mold sampling | 3 | — |
| Indoor allergen sampling | 2 | — |