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Underground parking ventilation regulations

Understanding the requirements to keep buildings safe and compliant

Make sure your underground parking ventilation is compliant
Protect occupants, optimize air quality and reduce energy consumption.

Your underground parking ventilation. 100% compliant.

Your underground parking ventilation issues are handled quickly, efficiently and at a controlled cost, thanks to field expertise specialized in diagnostics, optimization and regulatory compliance of ventilation systems.

Because performance and safety don't stop at installation.

  • Elimination of regulatory non-compliance risks
  • Better air quality and occupant safety
  • Optimized energy performance of ventilation systems
  • Diagnostics, upgrades and optimization of underground parking ventilation systems

Talk to an expert

Targeted services

Diagnostics and compliance analysis

Analysis of your underground parking ventilation to check compliance and detect problems.

  • check regulatory compliance
  • analyze airflow and air circulation
  • validate carbon monoxide sensor operation
  • detect ventilation or automation problems
  • identify energy optimization opportunities

A precise diagnosis often avoids costly work or operational shutdowns.

System optimization

Adjustment and fine-tuning of ventilation systems to improve performance.

  • adjust ventilation sequences
  • optimize fan and variable frequency drive operation
  • improve CO sensor management
  • stabilize equipment performance
  • reduce the system's energy consumption

The goal is a system that is safe, high-performing and energy-efficient.

Facility upgrades

Modernization of existing ventilation systems to improve safety and efficiency.

  • ventilation system modernization
  • integration of smart sensors
  • adding or optimizing building automation
  • better energy management of the parking garage

These improvements reduce operating costs while ensuring compliance with regulatory requirements.

When should you call Tekimmo for underground parking ventilation?

  • Air quality problems or persistent odours
  • Carbon monoxide (CO) sensor alarms or failures
  • Ventilation that runs continuously and uses too much energy
  • Old or poorly calibrated ventilation system
  • Need to check the parking garage's regulatory compliance

Main equipment

Ventilation equipment and systems we master

We work on a wide range of underground parking ventilation equipment. If your system isn't listed, our technicians can still help.

Commonly serviced equipment

  • Parking exhaust fans
  • Sensors for carbon monoxide (CO)
  • Variable frequency drives for fans
  • Ventilation controllers and control systems
  • Mechanical parking ventilation systems

Supported automation systems and platforms

Our technicians also handle the diagnostics, optimization and maintenance of building automation systems related to ventilation. Commonly supported platforms: Delta Controls, Niagara Framework, KMC Controls, Distech Controls, Automated Logic and other smart control systems .

“ Many underground parking garages built 20 or 30 years ago no longer meet current ventilation and CO detection standards. ”
  • — Senior building automation expert – Quebec

Regions served and availability

We serve all of Greater Montreal and the regions within about 2 hours of Montreal.

  • Montreal
  • Montérégie
  • Laval
  • Laurentians
  • Lanaudière
  • Eastern Townships 

Our team works with commercial, institutional and industrial buildings that need fast, reliable support for DELTA Controls systems.

Why do technical managers choose Tekimmo?

20 years of field work in Quebec

Solid expertise, proven in the field.

Complex problems handled

We find solutions where things get complicated.

Fast response

Direct line, quick answer, 24/7 service.

Clear, flexible pricing

More affordable than the competition, preferred rates available.

Multi-building expertise

Commercial, institutional and industrial.

A ventilation problem in your underground parking garage can seem complex.

With the right expertise, it becomes simple, safe and compliant with regulatory requirements.

Talk to an underground parking ventilation expert.
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reply within 24 h

Or describe your situation by email
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FAQ

What are the regulations for underground parking ventilation in Quebec?

Underground parking ventilation must meet the requirements of the Quebec Construction Code and air quality standards. The system must exhaust vehicle gases, especially carbon monoxide (CO), and provide enough air renewal to protect the building's occupants.

Is ventilation mandatory in an underground parking garage?

Yes. Ventilation is mandatory in an underground parking garage to exhaust vehicle gases, especially carbon monoxide (CO). Indoor parking garages must provide enough air renewal to protect occupants' health and meet the requirements of the Quebec Construction Code.

How do you check whether underground parking ventilation is compliant?

A ventilation system's compliance can be checked through a technical analysis of the parking garage and its equipment. This assessment makes it possible to:

  • check that CO sensors are present and working
  • analyze airflow and air circulation
  • validate fan operation
  • identify the corrections needed to meet the standards
Why install carbon monoxide sensors in an indoor parking garage?

CO sensors detect the concentration of carbon monoxide produced by vehicles. They automatically turn on ventilation when gas levels rise, which improves occupant safety and the system's energy efficiency.

Do older underground parking garages need to be upgraded?

Yes, many underground parking garages built 20 to 30 years ago no longer meet current ventilation or CO detection requirements. A technical analysis identifies the corrections needed to improve compliance and safety.

How can you improve the energy efficiency of underground parking ventilation?

Energy efficiency can be improved with:

  • smart CO sensors
  • variable frequency drives on fans
  • ventilation system automation
  • optimized operating sequences

These adjustments often reduce energy consumption while maintaining regulatory compliance.

How many air changes are required in an underground parking garage?

The number of air changes depends on the building's design and the standards that apply. In general, an underground parking garage must provide enough air renewal to keep carbon monoxide concentration below safe thresholds. Modern systems often use CO sensors to adjust ventilation to actual needs.

What is the maximum carbon monoxide concentration allowed in a parking garage?

Ventilation systems are generally set to keep carbon monoxide (CO) concentration at safe levels, often between 25 and 35 ppm, depending on the building's standards and safety settings. When sensors detect a rise in CO, ventilation turns on automatically.

What is the difference between natural and mechanical ventilation in an underground parking garage?

Natural ventilation relies on openings to the outside that let air circulate without fans. It is only possible when the parking garage's layout allows it.

Mechanical ventilation, on the other hand, uses fans and sensors to control air renewal. It is generally required for fully underground or enclosed parking garages.

Supported products

Call (438) 886-5001 Email [email protected]