Groupe G²N
Water testing - Clarity and Safety
Air testing – Breathe the Difference
Sampling kits - effective and easy to use
Laboratoire Notreau — Expertise dedicated to purity
For over 20 years, Laboratoire Notreau has been the Quebec benchmark in water and air quality analysis.
Our mission is simple: protecting the health of families, workers, and communities by guaranteeing reliable, precise, and fast results.
Each day, our team puts its scientific expertise to work toward a single goal: providing you with an indoor environment that is healthier, safer, and more peaceful.
Recognized scientific expertise
At Notreau, we believe trust is built on transparency and rigor.
That is why our analyses are performed using cutting-edge laboratory technology and to the highest industry standards.
Our certified experts ensure constant quality control at every step: from sample collection through to results validation.
We analyze and interpret a wide range of parameters with precision, including:
Drinking water quality: detection of bacteria, heavy metals, nitrates, pH, minerals, etc.
Indoor air quality: testing for mold, allergens, fine particles, and volatile organic compounds.
Contaminants and microbiological agents: identification, measurement, and tailored recommendations.
Our reports are clear, comprehensive, and designed to help you understand your results and make informed decisions, whether for your home, your business, or institutional buildings.
Tailored solutions for every need
Whether you are a homeowner, contractor, building manager, or public institution, Laboratoire Notreau offers services perfectly suited to your needs.
We work just as comfortably with individuals concerned about their well-being as with professionals who must comply with environmental or regulatory requirements.
Our clients choose us for:
Our speed of execution: results delivered within optimized turnaround times.
Our personalized support: every client benefits from attentive, people-centered follow-up.
Our scientific rigor: analyses performed by experienced technicians and microbiologists.
Our turnkey approach: from sample collection through to delivery of the report.
Simple, effective tools
Because the health of your environment shouldn’t be complicated, we have designed the Notreau sampling kits.
These ready-to-use kits let you collect samples easily at home or at your workplace, then return them to our laboratory for analysis.
Within a few days, you receive a detailed, easy-to-read report to correct or improve the quality of your air or water.
These practical solutions combine the simplicity of self-use with the reliability of professional testing — a perfect balance for anyone who wants to act quickly and effectively.
A lasting commitment to a healthier world
At Notreau, protecting the environment is at the heart of our mission.
We believe every analysis helps build a cleaner and safer future.
That is why we adopt eco-responsible procedures, reduce our environmental footprint, and raise our clients’ awareness of the importance of prevention and environmental quality.
Notreau is more than a laboratory:
it is a trusted partner, an ally for your health, and a guarantee of peace of mind.
Choose precision, speed, and peace of mind. Choose Notreau.
Whether you need to test your well, check the air quality in your building, or confirm the compliance of your facilities, Laboratoire Notreau is with you every step of the way.
🔹 Precise results.
🔹 People-centered service.
🔹 Expertise that inspires confidence.
Because the quality of the air you breathe and the water you drink deserves the utmost attention.
Choose purity, reliability, and peace of mind.
Choose Notreau.
💧 Laboratoire Notreau — Expertise dedicated to purity
For over 20 years, Laboratoire Notreau Inc. has been the Quebec benchmark in water and air quality analysis.
Our mission is simple: protecting the health of families, workers, and communities by guaranteeing reliable, precise, and fast results.
Each day, our team puts its scientific expertise to work toward a single goal: providing you with an indoor environment that is healthier, safer, and more peaceful.
🧪 Recognized scientific expertise
At Notreau, we believe trust is built on transparency and rigor.
That is why our analyses are performed using cutting-edge laboratory technology and to the highest industry standards.
Our certified experts ensure constant quality control at every step: from sample collection through to results validation.
We analyze and interpret a wide range of parameters with precision, including:
Drinking water quality: detection of bacteria, heavy metals, nitrates, pH, minerals, etc.
Indoor air quality: testing for mold, allergens, fine particles, and volatile organic compounds.
Contaminants and microbiological agents: identification, measurement, and tailored recommendations.
Our reports are clear, comprehensive, and designed to help you understand your results and make informed decisions, whether for your home, your business, or institutional buildings.
💼 Tailored solutions for every need
Whether you are a homeowner, contractor, building manager, or public institution, Laboratoire Notreau offers services perfectly suited to your needs.
We work just as comfortably with individuals concerned about their well-being as with professionals who must comply with environmental or regulatory requirements.
Our clients choose us for:
Our speed of execution: results delivered within optimized turnaround times.
Our personalized support: every client benefits from attentive, people-centered follow-up.
Our scientific rigor: analyses performed by experienced technicians and chemists.
Our turnkey approach: from sample collection through to delivery of the report.
📦 Simple, effective tools
Because the health of your environment shouldn’t be complicated, we have designed the Notreau® testing kits (water) and Notrair® (air).
These ready-to-use kits let you collect samples easily at home or at your workplace, then return them to our laboratory for analysis.
Within a few days, you receive a detailed, easy-to-read report, along with practical recommendations to correct or improve the quality of your air or water.
These practical solutions combine the simplicity of self-use with the reliability of professional testing — a perfect balance for anyone who wants to act quickly and effectively.
🌱 A lasting commitment to a healthier world
At Notreau, protecting the environment is at the heart of our mission.
We believe every analysis helps build a cleaner and safer future.
That is why we adopt eco-responsible procedures, reduce our environmental footprint, and raise our clients’ awareness of the importance of prevention and environmental quality.
Notreau is more than a laboratory:
it is a trusted partner, an ally for your health, and a guarantee of peace of mind.
💧 Choose precision, speed, and peace of mind. Choose Notreau.
Whether you need to test your well, check the air quality in your building, or confirm the compliance of your facilities, Laboratoire Notreau Inc. is with you every step of the way.
🔹 Precise results.
🔹 People-centered service.
🔹 Expertise that inspires confidence.
Because the quality of the air you breathe and the water you drink deserves the utmost attention.
Choose purity, reliability, and peace of mind.
Choose Notreau.
OUR WATER SERVICES
State-of-the-art technologies and recognized expertise for reliable, fast analyses compliant with the highest standards.
Iron ochre analysis
Detect iron ochre in time and avoid infiltration and corrosion problems.
Drinking water analysis
Have your water analyzed today for complete peace of mind.
Pool and water bodies analysis
Keep your pool water clear and safe — test it today.
Notreau analysis kit
Simple, fast, and reliable: test your water quality without leaving home.
OUR AIR SERVICES
Scientific rigor and precision tools for accurate, fast, and certified results.
Complete indoor air quality analysis
Breathe with confidence — discover the true quality of the air you breathe.
Mold and humidity detection
Don’t let hidden mold harm your health — request an inspection today.
Asbestos and chemical contaminant analysis
Before any work, make sure your environment is safe — test the air for asbestos and pollutants.
Specialized inspections and interventions
From family homes to daycares, our experts identify contamination sources and help you act fast.
Also discover our services
Géostar
Complementing its water and air analysis services, Notreau partners with Géostar, a company recognized for its expertise in environmental analyses, soil studies, and geotechnics.
Together, they are part of Groupe G²n, a network of experts dedicated to environmental protection and public health.
Géostar supports developers, builders, and institutions in evaluating soil quality and detecting environmental contaminants.
👉 Discover how Groupe G²n, with Géostar, Notreau, and GMT Lab, helps build safer and more sustainable environments.
