Commercial Air Conditioning in Montréal, Laval and Longueuil
Installation, repair, maintenance and replacement for offices, stores, restaurants, clinics and warehouses. Tap a point on the building, size your space, and see what A/C costs under Hydro-Québec’s Rate G and which rules apply.
Commercial Air Conditioning Services throughout Greater Montréal, Laval, Longueuil, the South Shore and the North Shore
AirGreen provides commercial air conditioning services that give you the cool, comfortable and clean environment your business needs. Our experience covers Montréal, Laval, Longueuil, the North Shore and the South Shore, for demanding business owners.
At AirGreen, we understand the importance of a robust, efficient air conditioning system. Our services cover all of your air conditioning needs. Tap a service:
Breakdown, replacement, new space: your plan, step by step.
Choose what’s happening to you: the steps, who does what, the documents to prepare and the key rule appear together.
{{rt.c.lead}}
Why Is Air Conditioning Important for a Business?
An efficient air conditioning system isn’t just a luxury, it’s a necessity. In a commercial space, air quality and comfort directly affect productivity and customer satisfaction.
{{im.c.p}}
{{im.c.img}}
Seven zones, seven answers: the same building, seen by a refrigeration technician.
Choose a zone here or on the drawing above. The system, the challenge, who does what and the rule to know appear together.
Your space in numbers: the heat to remove, line by line.
Three heat sources drive the capacity: floor area, equipment and people. Adjust each one, and the total recalculates and lines up with our standard capacities.
A/C doesn’t just cost kilowatt-hours. It costs kilowatts.
Under Rate G, Hydro-Québec also bills your power demand: the highest 15-minute average of the month. The first 50 kW are not billed. The rest costs $22.071 per kW, every month.
Every kW avoided above 50 kW is worth $22.071 per month. A more efficient unit and staggered start-ups reduce the peak.
| Rate | For whom | Demand | Energy |
|---|---|---|---|
| G · small power | Minimum billing demand under 65 kW | First 50 kW not billed, then $22.071 per kW | 12.388¢ for the first 15,090 kWh, then 9.534¢ |
| M · medium power | Accounts beyond Rate G | $18.242 per kW, starting with the first | 6.292¢ for the first 210,000 kWh, then 4.666¢ |
| All | Demand calculation | Highest 15-minute average, or 90% of apparent power (kVA) if higher; at least 65% of the winter peak over the last 12 months | |
From the hotel PTAC to the rooftop unit: which system is right for your space?
Choose your priority. The systems that meet it stay lit, the others fade out.
Ideal for: small office, conference room, one-room shop.
Good to know: also heats in winter, no ducts needed.
See models →Ideal for: several closed offices, a single outdoor unit.
Good to know: each room has its own thermostat.
See models →Ideal for: store, clinic, open area with a suspended ceiling.
Good to know: from 7,000 to 48,000 BTU in our catalogue.
See models →Ideal for: finished offices, high-end boutique: only the grilles show.
Good to know: requires a drop ceiling or an attic space.
See models →Ideal for: restaurant, gym, large room without a drop ceiling.
Good to know: long air throw, mounts on the ceiling or the wall.
See models →Ideal for: hotels, residences, rooms and suites, each with its own unit.
Good to know: from 7,000 to 17,000 BTU: Trane, Friedrich, Amana, Gree, ForestAir.
See models →Ideal for: a space that already has ductwork and an air handler.
Good to know: reuses the existing ductwork.
See models →Ideal for: office building, several floors, dozens of zones.
Good to know: custom-designed, backed by plans.
Commercial design →Ideal for: single-storey store with a flat roof and large floor areas.
Good to know: gas section handled by a licensed partner.
Commercial design →{{sy.count}}
Check up to three criteria: the ranking updates based on how many criteria each system meets.
Is your system still worth repairing? And what does waiting cost?
Six questions to move the needle, then a calculation of what an old system costs you every summer compared with a new one.
R-22, R-410A, R-32: where do the rules stand, and where does your unit stand?
Canada is phasing down HFCs in steps. The chart shows the share allowed each year; tap a date to see what it changes.
Source: SOR/2016-137, s. 65.06. R-410A is not banned: it becomes scarcer with each step.
Values from the IPCC Fourth Assessment Report, over 100 years. The lower the GWP, the less a leak weighs on the climate.
Six obligations under the Regulation respecting halocarbons, and the date of your next test.
The owner of a commercial system is accountable. Enter your system’s capacity, check off what’s already done, then calculate the deadline for your leak test.
At least once a year, never more than 15 months between two tests (s. 22). After a repair, a new test is done 30 to 60 days later.
Statuses as of October 14, 2026. Countdowns update daily.
{{r.d}}
{{r.src}}Hydro-Québec’s Efficient Solutions: the right component for your rate.
Your rate is printed on your bill. Tap it: we’ll tell you which component applies, how much it can cover and when to apply.
| Small Businesses | Medium and Large | |
|---|---|---|
| Rates | G, Flex G | M and other business rates |
| Maximum assistance | 90% of eligible costs | 75% (simplified offer) |
| Minimum assistance | $500 | $1,000 |
| Application | After the work | After (simplified) or approved before (custom) |
| Cap | $5M | $5M |
Hydro-Québec doesn’t publish a fixed amount per ton of air conditioning: assistance is calculated by its tool, based on the equipment and the project’s savings. Heat pumps: ENERGY STAR required.
Our Specialized Approach to Air Conditioning Services
At AirGreen, we believe in the power of personalized service. Every commercial space has unique needs and challenges when it comes to maintaining optimal temperature and air quality. That’s why we take the time to understand your needs before proposing a solution.
Simplified diagram, not to scale.
{{pc.c.us}}
{{pc.c.you}}
Every sector has its own heat. Choose yours.
{{sc.p}}
Why Choose AirGreen?
Choosing an HVAC service provider is an important decision that affects the comfort and air quality of your commercial space. Here’s what sets us apart:
With many years of serving a wide range of industries, our team has honed its skills in commercial HVAC systems. We take pride in delivering reliable, efficient solutions, whatever the type and size of your business.
Your satisfaction is our priority. From first contact to the end of the work, we aim for a smooth, satisfying experience.
We help businesses reduce their environmental impact. Energy-efficient air conditioning solutions lower your energy costs and your carbon footprint.
The questions we get before every commercial project.
Short answers, backed by the regulations and rates in force. Search a word: R-22, leak, permit, Hydro-Québec, rebate.
- Hydro-Québec, Electricity Rates in effect April 1, 2026 (Rates G and M).
- Hydro-Québec, Efficient Solutions: participation guides, Small Businesses component and Medium and Large Businesses component, March 2026.
- Regulation respecting halocarbons (CQLR, c. Q-2, r. 29), current to June 1, 2026.
- Ozone-depleting Substances and Halocarbon Alternatives Regulations (SOR/2016-137), current to July 21, 2026.
- Regulation respecting occupational health and safety (CQLR, c. S-2.1, r. 13), current to June 1, 2026; CNESST, Heat stroke.
- City of Montréal, Getting a permit to install a heat pump or air conditioning unit, updated August 3, 2026.
- GWP: IPCC Fourth Assessment Report. Occupant loads: ASHRAE Handbook, Fundamentals, chapter 18. Sizing rule: AirGreen rule of thumb, for guidance only, confirmed during the visit.
The calculations shown are estimates; only Hydro-Québec and the responsible bodies confirm the amounts billed or granted.
Commercial Air Conditioning in Montréal, Laval and Longueuil
Installation, repair, maintenance and replacement for offices, stores, restaurants, clinics and warehouses. Tap a point on the building, size your space, and see what A/C costs under Hydro-Québec’s Rate G and which rules apply.
Commercial Air Conditioning Services throughout Greater Montréal, Laval, Longueuil, the South Shore and the North Shore
AirGreen provides commercial air conditioning services that give you the cool, comfortable and clean environment your business needs. Our experience covers Montréal, Laval, Longueuil, the North Shore and the South Shore, for demanding business owners.
At AirGreen, we understand the importance of a robust, efficient air conditioning system. Our services cover all of your air conditioning needs. Tap a service:
Breakdown, replacement, new space: your plan, step by step.
Choose what’s happening to you: the steps, who does what, the documents to prepare and the key rule appear together.
We replace it with a more efficient system, recover the old gas by the rules and check Efficient Solutions assistance before you sign.
Why Is Air Conditioning Important for a Business?
An efficient air conditioning system isn’t just a luxury, it’s a necessity. In a commercial space, air quality and comfort directly affect productivity and customer satisfaction.
Summer heat tires people out, slows them down and drives up complaints. Properly sized air conditioning keeps a steady temperature, from the window corner to the meeting room.
An office space where employees struggle against stifling summer heat.
Seven zones, seven answers: the same building, seen by a refrigeration technician.
Choose a zone here or on the drawing above. The system, the challenge, who does what and the rule to know appear together.
Screens, full meeting rooms and a south-facing façade create hot zones next to cold ones. A zoned ducted unit or VRF gives each area its own set point.
Your space in numbers: the heat to remove, line by line.
Three heat sources drive the capacity: floor area, equipment and people. Adjust each one, and the total recalculates and lines up with our standard capacities.
A/C doesn’t just cost kilowatt-hours. It costs kilowatts.
Under Rate G, Hydro-Québec also bills your power demand: the highest 15-minute average of the month. The first 50 kW are not billed. The rest costs $22.071 per kW, every month.
Every kW avoided above 50 kW is worth $22.071 per month. A more efficient unit and staggered start-ups reduce the peak.
| Rate | For whom | Demand | Energy |
|---|---|---|---|
| G · small power | Minimum billing demand under 65 kW | First 50 kW not billed, then $22.071 per kW | 12.388¢ for the first 15,090 kWh, then 9.534¢ |
| M · medium power | Accounts beyond Rate G | $18.242 per kW, starting with the first | 6.292¢ for the first 210,000 kWh, then 4.666¢ |
| All | Demand calculation | Highest 15-minute average, or 90% of apparent power (kVA) if higher; at least 65% of the winter peak over the last 12 months | |
From the hotel PTAC to the rooftop unit: which system is right for your space?
Choose your priority. The systems that meet it stay lit, the others fade out.
Ideal for: small office, conference room, one-room shop.
Good to know: also heats in winter, no ducts needed.
See models →Ideal for: several closed offices, a single outdoor unit.
Good to know: each room has its own thermostat.
See models →Ideal for: store, clinic, open area with a suspended ceiling.
Good to know: from 7,000 to 48,000 BTU in our catalogue.
See models →Ideal for: finished offices, high-end boutique: only the grilles show.
Good to know: requires a drop ceiling or an attic space.
See models →Ideal for: restaurant, gym, large room without a drop ceiling.
Good to know: long air throw, mounts on the ceiling or the wall.
See models →Ideal for: hotels, residences, rooms and suites, each with its own unit.
Good to know: from 7,000 to 17,000 BTU: Trane, Friedrich, Amana, Gree, ForestAir.
See models →Ideal for: a space that already has ductwork and an air handler.
Good to know: reuses the existing ductwork.
See models →Ideal for: office building, several floors, dozens of zones.
Good to know: custom-designed, backed by plans.
Commercial design →Ideal for: single-storey store with a flat roof and large floor areas.
Good to know: gas section handled by a licensed partner.
Commercial design →The 9 systems we install in commercial buildings.
Check up to three criteria: the ranking updates based on how many criteria each system meets.
Is your system still worth repairing? And what does waiting cost?
Six questions to move the needle, then a calculation of what an old system costs you every summer compared with a new one.
R-22, R-410A, R-32: where do the rules stand, and where does your unit stand?
Canada is phasing down HFCs in steps. The chart shows the share allowed each year; tap a date to see what it changes.
Source: SOR/2016-137, s. 65.06. R-410A is not banned: it becomes scarcer with each step.
Values from the IPCC Fourth Assessment Report, over 100 years. The lower the GWP, the less a leak weighs on the climate.
Six obligations under the Regulation respecting halocarbons, and the date of your next test.
The owner of a commercial system is accountable. Enter your system’s capacity, check off what’s already done, then calculate the deadline for your leak test.
At least once a year, never more than 15 months between two tests (s. 22). After a repair, a new test is done 30 to 60 days later.
Statuses as of October 14, 2026. Countdowns update daily.
Leak tests, certificate, 5-year log, ban on releasing gas.
CQLR, c. Q-2, r. 29Manufacturing and import prohibited above a GWP of 750.
SOR/2016-137Rate G: 50 kW not billed, $22.071 per kW above that, 12.388¢ and 9.534¢ per kWh.
Hydro-QuébecSecond major cut in the HFCs allowed in Canada, including R-410A.
SOR/2016-137, s. 65.06Last planned stage of the HFC phase-down.
SOR/2016-137, s. 65.06Consultation held in 2024 on lower limits. No draft published to date.
Environment and Climate Change CanadaRates G and Flex G. Up to 90% of eligible costs, application after the work.
Hydro-QuébecSimplified offer up to 75%, after the work. Custom offer approved before the work.
Hydro-QuébecHydro-Québec’s Efficient Solutions: the right component for your rate.
Your rate is printed on your bill. Tap it: we’ll tell you which component applies, how much it can cover and when to apply.
| Small Businesses | Medium and Large | |
|---|---|---|
| Rates | G, Flex G | M and other business rates |
| Maximum assistance | 90% of eligible costs | 75% (simplified offer) |
| Minimum assistance | $500 | $1,000 |
| Application | After the work | After (simplified) or approved before (custom) |
| Cap | $5M | $5M |
Hydro-Québec doesn’t publish a fixed amount per ton of air conditioning: assistance is calculated by its tool, based on the equipment and the project’s savings. Heat pumps: ENERGY STAR required.
Our Specialized Approach to Air Conditioning Services
At AirGreen, we believe in the power of personalized service. Every commercial space has unique needs and challenges when it comes to maintaining optimal temperature and air quality. That’s why we take the time to understand your needs before proposing a solution.
Simplified diagram, not to scale.
We measure the space and note the windows, the ceiling, the electrical service and possible locations for the outdoor units.
You show us the space and your opening hours, plus your Hydro-Québec bills if you have them.
Every sector has its own heat. Choose yours.
Screens, full meeting rooms and south-facing windows create hot zones next to cold ones. Zoning settles the complaints: each area gets its own set point.
Why Choose AirGreen?
Choosing an HVAC service provider is an important decision that affects the comfort and air quality of your commercial space. Here’s what sets us apart:
With many years of serving a wide range of industries, our team has honed its skills in commercial HVAC systems. We take pride in delivering reliable, efficient solutions, whatever the type and size of your business.
Your satisfaction is our priority. From first contact to the end of the work, we aim for a smooth, satisfying experience.
We help businesses reduce their environmental impact. Energy-efficient air conditioning solutions lower your energy costs and your carbon footprint.
The questions we get before every commercial project.
Short answers, backed by the regulations and rates in force. Search a word: R-22, leak, permit, Hydro-Québec, rebate.
- Hydro-Québec, Electricity Rates in effect April 1, 2026 (Rates G and M).
- Hydro-Québec, Efficient Solutions: participation guides, Small Businesses component and Medium and Large Businesses component, March 2026.
- Regulation respecting halocarbons (CQLR, c. Q-2, r. 29), current to June 1, 2026.
- Ozone-depleting Substances and Halocarbon Alternatives Regulations (SOR/2016-137), current to July 21, 2026.
- Regulation respecting occupational health and safety (CQLR, c. S-2.1, r. 13), current to June 1, 2026; CNESST, Heat stroke.
- City of Montréal, Getting a permit to install a heat pump or air conditioning unit, updated August 3, 2026.
- GWP: IPCC Fourth Assessment Report. Occupant loads: ASHRAE Handbook, Fundamentals, chapter 18. Sizing rule: AirGreen rule of thumb, for guidance only, confirmed during the visit.
The calculations shown are estimates; only Hydro-Québec and the responsible bodies confirm the amounts billed or granted.
Interesting Information on Commercial Air Conditioning throughout Montreal, Laval, Longueuil, South Shore and North Shore
-
AirGreen Climatisation & Chauffage AdminCommercial Air Conditioning in Quebec: Are You Compliant with the Latest Environmental Regulations?
-
AirGreen Climatisation & Chauffage AdminAirGreen Reveals: Why Some "Low-Cost" Air Conditioners Actually Cost a Fortune
-
AirGreen Climatisation & Chauffage AdminClient Testimonial: "Thanks to AirGreen, our offices stay cool and our employees are happy!"
-
AirGreen Climatisation & Chauffage AdminHeatwave in Montreal: 7 Tips to Keep Your Commercial Air Conditioning Running Smoothly
-
AirGreen Climatisation & Chauffage AdminCommercial Heat Pumps: The All-Season Solution for Heating and Cooling Your Premises
-
AirGreen Climatisation & Chauffage AdminConnected air conditioning: How this South Shore restaurant cut its energy bills in half thanks to AI
-
AirGreen Climatisation & Chauffage AdminAir Conditioning Quotes: 6 Essential Questions to Ask Before Choosing Your Installer
-
AirGreen Climatisation & Chauffage AdminAirGreen to the Rescue: How We Restored Air Conditioning in a Sports Center During a Heatwave
-
AirGreen Climatisation & Chauffage AdminMontréal, City of Contrasts: How to Air Condition a Historic Office Building Without Altering Its Character
-
AirGreen Climatisation & Chauffage AdminAir Conditioning and Air Quality: 5 Numbers That Will Make You Change Your Filters More Often
-
AirGreen Climatisation & Chauffage AdminRefrigerant Law 2025: What the R-22 Phase-Out Means for Your Old Commercial Air Conditioner
-
AirGreen Climatisation & Chauffage AdminCase Study: AirGreen Transforms Condo Tower’s Air Conditioning and Reduces Complaints by 80%
