Benjel · Air quality, mould and asbestos testing · SEO and local search · 2026
How an air-quality consultancy gained six average positions on a million impressions
Nobody researches mould testing for pleasure. They search once, in alarm, and they choose from what is in front of them.
18.8
average position
from 24.8 — six average positions gained
The results, up top — every number is in the strip below
18.8
average position
from 24.8, twelve matched months
980,767
organic impressions
up 13% from 867,408
+12%
profile direction requests
863 → 965
30+
years of technical practice
chemist-led air quality testing
+37%
profile impressions
2,777 → 3,792, matched twelve months
01 — The challenge
A 30-year technical consultancy in a category full of alarmists.
Benjel Chimistes Conseil has spent more than thirty years on indoor air quality in Quebec — mould, humidity, asbestos and vermiculite testing for homeowners, employers and building managers.
The search category is crowded with remediation contractors whose interest is selling the removal, not diagnosing whether removal is needed. A chemist-led testing firm competes against urgency and scare copy with something much less clickable: an accurate answer.
“Half the people who call us do not need the work they think they need. That is the service. It is also the hardest thing in the world to advertise.”
So the coverage was built around the questions people ask before they panic and buy.
02 — Our approach
Own the diagnostic question, in both languages, across three audiences.
Homeowners, employers and building managers arrive with the same problem and entirely different vocabulary. Coverage was separated accordingly: mould and humidity for residential, workplace air quality and productivity for employers, and asbestos and vermiculite as its own regulated topic.
Average position improved from 24.8 to 18.8 across twelve matched months while impressions grew 13% from 867,408 to 980,767. Profile direction requests rose 12% and all-channel GA4 sessions rose 5%.
With position and reach both up, the compounding lever from here is the snippet — better titles and descriptions convert more of the appearances the site has already won.
03 — What we did
Audience-split coverage, regulated-topic depth, bilingual reach.
Three audiences, one laboratory, separate searches.
Six positions of average gain
Average position 24.8 → 18.8
Across a full matched year, not a best month. On queries this competitive, six places of average movement is the whole game.
Three audiences, three vocabularies
Homeowner, employer, building manager
A parent worried about a bedroom wall and a facilities manager with a workplace complaint file share nothing but the contaminant.
Asbestos and vermiculite, treated seriously
A regulated topic, not a service page
These searches carry legal and health consequences. The content answers the obligation, not just the sales question.
Every series on the page
Six positions gained on 980,767 impressions
Ranking and reach are in place across all three audiences. The compounding work from here is the snippet that turns an appearance into a visit.
04 — The results
Twelve matched months: six average positions gained on 980,767 impressions.
The stack we ran it on
Google Business Profile
Local SEO
Google Search Console
Search
GA4
Analytics
Ahrefs
SEO
CallRail
Call tracking
Screaming Frog
Technical SEO
AgencyAnalytics
Reporting
Looker Studio
Dashboards
National Consumer Panel — UGC-driven acquisition & paid media
CPI −30% · CPA −20%
National Debt Relief — UGC, performance creative & influencer strategy
CVR +25% · CAC −30%
"Their transparency, attention to detail, and collaborative approach made them feel like an extension of our own team."
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