Clean air starts with a ventilation system that is properly maintained and free of accumulated dust, allergens, and debris. Groupe Rousso has served the Greater Montreal region for over 30 years, and our two Longueuil offices allow us to respond quickly to residents, condo boards, and businesses who need ventilation duct cleaning in Longueuil. Our specialized teams handle everything from single-family homes to multi-unit buildings, always with the goal of improving the air you breathe every day.

Condominium boards in Quebec are increasingly expected to maintain and document the condition of shared building systems, including ventilation. Meeting these Loi 16 ventilation requirements often starts with a thorough cleaning and inspection record that boards can keep on file. Our teams handling ventilation duct cleaning in Longueuil buildings work alongside the broader residential and multi-unit HVAC systems we install and maintain, giving boards one point of contact for compliance.

Scheduling a dryer vent inspection alongside your regular ventilation service reduces lint buildup that can become a fire hazard in older Vieux-Longueuil homes. We generally recommend cleaning ventilation systems every five years to prevent airflow and air quality issues, and pairing that visit with a dryer check keeps both systems on the same maintenance timeline. If you want to combine ventilation duct cleaning in Longueuil with dryer vent service, reach out to our local scheduling team to arrange a convenient date.

Every appointment follows a structured process built on three decades of hands-on ventilation work. Here is what our specialized teams bring to each job site.

Microbiological decontamination : Our technicians remove mould, bacteria, and biofilm buildup from ducts using methods refined over more than 30 years of practice.

Sheet metal fabrication : Our in-house sheet metal worker fabricates custom duct sections when existing components are damaged or improperly sized.

Engineer-reviewed assessments : Complex buildings benefit from an on-staff engineer who reviews airflow and system design before any cleaning begins.

RBQ-accredited crews : Every team operates under our Régie du bâtiment du Québec accreditation, giving property managers documented proof of compliance.

Coordinated HVAC follow-up : Our four HVAC installation teams step in seamlessly if a cleaning reveals equipment that needs repair or replacement.

Dust, allergens, and biofilm accumulate quietly until residents start noticing odours or airflow problems, and by then the fix usually costs more than routine maintenance would have. Our teams handling ventilation duct cleaning in Longueuil apply the same standards that earned Groupe Rousso recognition as CBRB Best Business in Canada and the trust of over 12,000 clients across Eastern Canada. For homes that also need air exchanger work alongside duct service, our residential air exchanger and duct maintenance program covers both under one visit.