Chantiers et poussières fines à Longueuil : comment protéger efficacement votre maison
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Construction Sites and Fine Dust in Longueuil: How to Effectively Protect Your Home

Understanding the Impact of Construction Sites in Longueuil on Indoor Air Quality

In Longueuil, residential and urban construction projects are multiplying. These works often generate a significant amount of fine dust, invisible to the naked eye but harmful to respiratory health. When these particles infiltrate homes, they can trigger allergies, irritate the respiratory tract, and compromise indoor air quality.

At AirGreen, we were recently called in to intervene in a residential neighborhood in Longueuil, where a couple had just moved into a home near a major urban redevelopment project. Their problem: constant dust buildup in air vents and on surfaces, despite keeping windows closed and maintaining a rigorous cleaning routine.

A Targeted Intervention with Mechanical Ventilation (HRV)

We started with a full inspection of the existing ventilation system, which turned out to be outdated, lacking HEPA filters, and poorly calibrated for the home’s air volume. We then proposed a custom solution: the installation of a heat recovery ventilator (HRV) equipped with MERV 13 filters, specifically designed to capture microparticles.

Our team carried out a clean, fast, and optimized installation, with special attention to dust-sensitive areas such as bedrooms and the living room. The chosen unit, an ultra-efficient model from the brand Venmar AVS, allows air renewal without losing indoor heat—a major advantage during the Québec winter.

The Results: Restored Comfort and Cleaner Air

Within just a few days of installation, the clients noticed a clear improvement. Dust no longer accumulated as much, the air felt fresher, and their child’s allergy symptoms had faded. Thanks to smart programming, the unit activates automatically during pollution peaks or when particles are detected by built-in sensors.

This type of smart ventilation is ideal for homes located in high-construction areas, like several neighborhoods in Longueuil, Laval, Montréal, or across the South Shore.

Why Is Fine Dust So Harmful for Your Home and Health?

Fine dust, also known as PM2.5, consists of particles smaller than 2.5 microns. Too small to be filtered by the nose or throat, they penetrate deep into the lungs and even the bloodstream. Risks include:

  • Chronic irritation of the respiratory tract

  • Worsening of asthma symptoms

  • Increased risk of cardiovascular disease

  • Buildup on surfaces and inside HVAC systems

Without adequate ventilation, a house acts like a sealed box, trapping these harmful particles.

Practical Tips to Protect Your Home from Construction Dust

Here’s what we recommend at AirGreen for any home exposed to fine dust:

  • Install an HRV system with HEPA or MERV 13 filters

  • Plan regular HVAC maintenance (at least twice a year)

  • Clean air vents and ductwork regularly

  • Avoid opening windows during heavy construction periods

  • Use portable air purifiers in main living areas

AirGreen: Your Ventilation Partner on the South Shore and in Longueuil

With our solid experience in HVAC installation, we act quickly in areas like Longueuil, Saint-Hubert, Brossard, and across the South Shore, offering long-lasting solutions tailored to each unique case. Our certified technicians perform personalized diagnostics and recommend only high-performance, quiet systems that are grant-eligible when applicable.

In this Longueuil project, our clients qualified for a provincial tax credit for improving their home’s energy efficiency. We handle all the paperwork related to government grants, making your investment even more worthwhile.

Our Unique Approach to Urban Environmental Challenges

At AirGreen, we don’t just sell a product. We analyze your property’s surroundings, identify potential sources of indoor pollution, and build a custom solution tailored to your real needs and budget.

Every job site is a chance to prove our expertise, as was the case here in Longueuil. Our clients know they can count on our precision, our attention to detail, and our full-service support, from the quote to after-sales service.

A Word About Maintenance: A High-Performance System Is a Maintained System

We strongly recommend scheduling annual preventive maintenance for your ventilation system. This includes:

  • Cleaning ducts and filters

  • Verifying airflow rates

  • Adjusting electronic settings

  • Sanitizing the HRV unit

A poorly maintained system can lose up to 30% of its efficiency and may even become a breeding ground for bacteria or mold.

Conclusion: Peace of Mind Through Thoughtful Ventilation

Urban development and construction projects aren’t going away in Longueuil or anywhere else on the South Shore. But your comfort, health, and your family’s well-being shouldn’t suffer because of it. Thanks to an AirGreen ventilation solution, you can take back control of your indoor air—no matter what’s going on outside.

We’re proud to bring our expertise to the residents of Montréal, Laval, Longueuil, the South Shore, and the North Shore, delivering smart, durable, and efficient HVAC solutions.

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