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Heat pumps and air conditioners in Saint-Louis

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Get a 100% free quote!Air conditioning in Saint-Louis
QuoteWithin 24 hAfter the visit, residential and commercial.
EstimateFree, on siteWe come and see the house in Saint-Louis.
LicenceRBQ 5645-9605-01Subclasses 15.8, 15.10 and 16.
PermitPermit requiredSee the bylaw summary
01 · Residential

Some residential air conditioning, ventilation and heating categories in Saint-Louis

Wall heat pump Wall heat pump Multi-zone heat pump Multi-zone heat pump Wall air conditioner Wall air conditioner Central heat pump Central heat pump Air exchanger Electric furnace

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Air conditioningAir conditioning service in Saint-LouisRepair, maintenance and installation.

Some of our repair services in Saint-Louis

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Some of our cleaning services in Saint-Louis

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Some commercial air conditioning, ventilation and heating categories in Saint-Louis

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SHARP CPU Airest Wall Mounted Heat Pump | 12,000 BTU | Montreal, Laval, South Shore & North Shore

In Stock at AirGreen!

A New Standard in Air Conditioning and Air Purification!

SHARP CPU Airest Wall Mounted Heat Pump | 12,000 BTU | Montreal, Laval, South Shore & North Shore

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02 · AirGreen in Saint-Louis

AirGreen in Saint-Louis

Montreal roots and execution expertise applied to local contexts

A family business based in Montreal for over 15 years , AirGreen Air Conditioning & Heating offers proven expertise in installing new HVAC systems for residential, commercial, and industrial projects. Its structured development on the South Shore, supported by its Boucherville showroom, allows it to undertake projects in Saint-Louis with a precise understanding of local constraints, usage patterns, and technical requirements. This presentation focuses on the approach to implementing new equipment, while reflecting a capacity to work on buildings of varying types and sizes.

• Family business with stable governance

• Extensive HVAC experience focused on new installations

• Regional presence supporting consistent local initiatives

HVAC systems configured according to buildings, uses, and energy objectives

The interventions described here relate exclusively to the installation of new systems , fully integrating wall-mounted heat pumps , wall-mounted air conditioners , central heat pumps , central air conditioners , multi-zone systems , air-to-water systems , PTAC/VTAC , as well as ventilation including air exchangers, humidity control, and fresh air supply. These solutions are applicable to houses , multi-unit residential buildings , commercial spaces , and mixed-use buildings , based on a logic that takes into account the building's characteristics, occupancy profiles, thermal loads, and operational and energy efficiency objectives.

• Analysis of volumes and architectural constraints

• Sizing based on actual thermal loads

• Consistency between energy efficiency and operational use

Structured implementation method ensuring consistent performance

Each project follows a structured technical approach that includes system analysis , load assessment , equipment compatibility verification , installation coordination , and commissioning . This approach aims for long-term reliability , controlled scalability , and stable performance, thanks to rigorous technical integration and controlled commissioning from the outset.

• Precise sequencing of execution steps

• Functional consistency of the installed components

• Operational stability-oriented commissioning

Regulatory compliance and energy sustainability adapted to the territory

Quality of execution relies on compliance with regulatory requirements, disciplined coordination, and comprehensive commissioning , documentation , and system handover procedures. AirGreen supports clients in understanding Hydro-Québec and federal subsidy programs , without presenting them as guaranteed or outsourcing their administration. This approach promotes sustainability , operational stability , and long-term energy efficiency —criteria that are particularly relevant for projects in Saint-Louis , where the longevity of the installations is a key consideration.

• Rigorous application of regulatory frameworks

• Complete documentary traceability

• Energy efficiency maintained over time

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03 · Permits and bylaws

Permits and Regulations: Saint-Louis

If you are planning an air conditioning, ventilation or heating project in Saint-Louis, it is essential to find out beforehand whether you need to obtain a permit.

Furthermore, it is strongly recommended to consult the regulations in force concerning the installation of heat pumps or air conditioners to ensure a compliant and trouble-free implementation!

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What the bylaw says
Permit
Permit requiredCertificate of authorization required before installation (free)
Distance from lot lines
2 mAt least 2 m from every lot line
Noise limit
Not specifiedNuisance bylaw 549-23: no figure for heat pumps

Permits and bylaws · Checked on September 30, 2026. Summary only: the official bylaw prevails.

04 · Our installations

Some of our recent installations across Québec

Installation of a Broan-NuTone AI Series air exchanger with Virtuo technology in Vaudreuil-DorionInstallation of a Broan-NuTone AI Series air exchanger with Virtuo technology in Vaudreuil-DorionInstallation of a Sharp ZU1 wall-mounted heat pump in Villeray–Saint-Michel–Parc-ExtensionInstallation of a Sharp ZU1 wall-mounted heat pump in Villeray–Saint-Michel–Parc-ExtensionInstallation of a MIDEA EVOX G3 central heat pump in Saint-Lazare, in MontérégieInstallation of a MIDEA EVOX G3 central heat pump in Saint-Lazare, in MontérégieInstallation of a MIDEA EVOX G3 central heat pump in Pointe-des-Cascades, MontérégieInstallation of a MIDEA EVOX G3 central heat pump in Pointe-des-Cascades, MontérégieGREE FLEXX Central Heat Pump Installation in Sainte-Anne-de-Bellevue: A Robust HVAC Solution for Four-Season Home ComfortGREE FLEXX Central Heat Pump Installation in Sainte-Anne-de-Bellevue: A Robust HVAC Solution for Four-Season Home ComfortInstallation of a Fujitsu AIRSTAGE Altair 500 wall-mounted heat pump in Saint-Basile-le-Grand: discreet integration into a thoughtfully designed interiorInstallation of a Fujitsu AIRSTAGE Altair 500 wall-mounted heat pump in Saint-Basile-le-Grand: discreet integration into a thoughtfully designed interiorInstallation of a Gree Livo R32 wall-mounted heat pump in Plateau-Mont-RoyalInstallation of a Gree Livo R32 wall-mounted heat pump in Plateau-Mont-RoyalInstallation of a MIDEA 28 dual-zone heat pump on wall brackets in Chambly, MontérégieInstallation of a MIDEA 28 dual-zone heat pump on wall brackets in Chambly, Montérégie

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05 · Brands

Some of our partners in Saint-Louis

FUJITSU: Air Conditioning, Ventilation & Heating | Montreal, Laval, Longueuil, South Shore and North ShoreHITACHI: Air Conditioning, Ventilation & Heating | Montreal, Laval, Longueuil, South Shore and North ShoreSAMSUNG: Air Conditioning, Ventilation & Heating | Montreal, Laval, Longueuil, South Shore and North ShoreLG: Heating, Ventilation & Air conditioning | Montreal, Laval, Longueuil, South Shore and North ShoreSHARP : Heating, Ventilation & Air Conditioning | Montreal, Laval, Longueuil, South Shore and North ShoreMIDEA: Air Conditioning, Ventilation & Heating | Montreal, Laval, Longueuil, South Shore and North ShoreGREE : Heating, Ventilation & Air Conditioning | Montreal, Laval, Longueuil, South Shore and North ShoreDIRECT AIR: Air Conditioning, Ventilation & Heating | Montreal, Laval, Longueuil, South Shore and North ShoreCANAIR: Air Conditioning, Ventilation & Heating | Montreal, Laval, Longueuil, South Shore and North ShoreELIOS: Air Conditioning, Ventilation & Heating | Montreal, Laval, Longueuil, South Shore and North ShoreBOSCH : Heating, Ventilation & Air Conditioning | Montreal, Laval, Longueuil, South Shore and North ShoreFORESTAIR: Air Conditioning, Ventilation & Heating | Montreal, Laval, Longueuil, South Shore and North Shore
Buying guide

Don’t make the mistake of buying a wall-mounted system without reading our 2025-2026 Buying Guides! Discover the best models, our tips for saving money, and everything you need to know before making your choice. Open the guide and make a smart investment now!

Wall HEAT PUMP Wall AIR CONDITIONER
AirGreen is proud to be part of:
AirGreen refrigeration team
06 · Careers

Career: Join the AirGreen team in St. Louis!

Join our dynamic team at AirGreen! We have several positions available in the Saint-Louis area and the rest of the Montérégie region!

  • Refrigeration Technician / Refrigeration Specialist
  • HVAC Installer
  • Duct installers
  • Apprentices
  • Sales Representative
  • Customer Service Representative
  • Maintenance staff
  • Estimator
  • Warehouse staff
  • Project Manager
  • And many others!

See our job offers and apply now!

AirGreen · Air conditioning and heating

A heat pump or air conditioner project in Saint-Louis?

We come and see the house, and the estimate is free.

Book my free estimate 514 316-2973
RBQ licence 5645-9605-01Subclasses 15.8, 15.10 and 16.
Free on-site estimate
Quote within 24 hours