• Plumbing, Heating, Air-Conditioning & Ventilation

    Family owned and operated service in Island of Montreal, Greater Montreal and all of Quebec.

  • Residental & Commercial

    Family owned and operated service in Island of Montreal, Greater Montreal and all of Quebec.

  • Island of Montreal, Greater Montreal and all of Quebec

    Family owned and operated service in Island of Montreal, Greater Montreal and all of Quebec.

Commercial Services

Our comprehensive approach to designing, building, and maintaining air conditioning, plumbing, heating, and ventilation services helps our clients keep tenants or employees comfortable, safe, and healthy.

Residential Services

JW serves local residential clients offering advanced technology and innovative features. We enhance our clients enjoyment, protect their budget, and provide 24/7 service. 


  • Drain Cleaning
  • Pressure Washing
  • Camera services
  • Repair/replacement
  • Main drain
  • Macerating toilets
  • Back water valve
  • Grease/Oil


  • Main water entrance
  • Galvanized piping
  • Commercial risers
  • Water meters


  • Hot water tanks
  • Commercial and indirect water heaters
  • Tempering valves
  • Recirculation systems


  • Installation, repair, pressure regulating valves and sump pumps


  • Bathrooms, laundry rooms, kitchens and etc.

Appliance Instillation and Services

  • Boilers
  • Heat Exchangers
  • Furnaces
  • Unit Heaters
  • Make up Air units
  • Heat Pumps
  • Roof Top Units
  • Pool heaters

Piping, Fittings, and Valves

  • Repair
  • Control Valves (Electronic and Pneumatic)

Radiant heating

  • In-floor radiant heating
  • Snow melt systems (radiant driveways and parking garages)

Boiler, Piping and Pressure Vessel Repair

  • Re-Tubing
  • Welding

Appliance Installation and Services

  • Water Cooled Systems
  • Cooling Towers
  • Roof Top Units
  • Ductless systems (Split & Mini-split Systems)

NOVAR and other ddc controls

Seamless heating, ventilating and air conditioning (HVAC) control

Multi-Zone Cooling Systems

Solution used to separate different climate control areas

Cleaning evaporators and condensers

Pressure washing of evaporators and condensers

Commercial Kitchens

  • Exhaust Hood and Ducting
  • Exhaust Fans
  • Filtration (filtration for wood and coal fire ovens)


Variable air volume to supply a constant airflow at a variable temperature.

Duct Cleaning

Full cleaning of all ducts in system

Installation and repair of Fans

Test, Balance and Calibration



Camera inspection - Visual inspection & tools specially designed to allow plumbing technicians to conduct a visual inspection of sewer lines and other underground pipes, including pipes under cement and your home’s foundation. 


Prevent costly AC repairs

Seasonal and preventative maintenance is necessary for the proper functionality of the central Heating & Cooling System. 


Waterer supply

Backflow occurs when water from the property flows backward into our pipes. Devices we offer ensure our water supply isn’t contaminated from hazards on a customer’s property. They stop water in a customer’s water pipe flowing back into our water main. 

Frequently asked questions


Fiber-optic pipeline video inspection?
A fiber-optic pipeline video inspection is a diagnostic process whereby a high-resolution fiber-optic video camera is inserted in a pipeline to view the pipe from the inside. It takes the guesswork out of diagnosing a pipeline problem and can pinpoint exactly where a problem is and exactly how to fix it in the most cost-effective manner.
What are the indications of a slab leak?
Checking the mater meeter - after making sure no water running at the facility (dishwashers, laundry, toilet, refilling, etc.). Many meters have a "leak detector" which appears as a small black triangle or a small white wheel. If this is spinning or there is any movement on the dial, this indicates a leak in the water pipe system.
What is a repipe?
A repipe is a complete replacement of the incoming fresh water system in a home or business from the water meter or well to all plumbing fixtures. As severe as it sounds it is actually a very common procedure. It is necessary in situations where the plumbing pipes have begun to leak due to deterioration, or when low pressure due to calcification is present in pipes.
When should I call JW Plumbing & Heating?
- Rumbling sound coming from the water heater - White substance around my shower head and faucet - Foul odor coming from garbage disposal - Higher than usual temperature of hot water.
Drain Misconnections and How They Affect the Planet
Aside from breaking the law, drain misconnections can have serious environmental implications by posing a threat to rivers, wildlife and our oceans. If you own any type of property, it’s your responsibility to be aware of the risks faulty drainage and misconnections can have on the environment and address them to minimise the impact.


When is time to do ductwork inspection in the building?
Issues such as leaks, cracks, and incorrectly sized ductwork can end up costing a lot of money in the long run from loss of energy. If there are issues with your ductwork it is best to have ductwork checked and than replaced or repaired as soon as possible.
Sizes of HVAC system - and problems they can cause
The right sized system for the commercial building - HVAC system will heat and cool effectively and the air will feel just right. The system that is not the right size for the building may cause issues. If the current HVAC system is too small, it may not be able to heat or cool correctly and efficiently during extreme weather. The system can running constantly and will increase your energy consumption significantly. Too big system will have trouble reducing the moisture in the air (while the thermostat switches off after reading the right temperature) the air still feels humid.
The right thermostat can help control temperature, humidity levels, and energy consumption in the commercial building
Right choice of thermostat is right for commercial building The type of thermostat will depend on the size of the commercial building. Small buildings may even go with a residential thermostat. Programmable thermostat will allow to adjust heating and cooling with the patterns of building use. A commercial operation that has several buildings, or one large building that needs separate zoning, may be better off using multiple thermostats that are all controlled in one central place. This makes it easy to keep buildings or areas at different temperatures without having to adjust each area separately. No matter which type of thermostat - programmable is always the best choice.


What is Central air conditioning?
Central air conditioners and heat pumps are designed to cool the entire house. It employs the same types of components, materials, and systems as a refrigerator, including a refrigerant that changes from liquid to gas and back to liquid as it travels through a system of tubes and coils or fins that collect and give off heat.
Two types of central air conditioners
1. Split-system. In a split-system central air conditioner, an outdoor metal cabinet contains the condenser and compressor, and an indoor cabinet contains the evaporator. In many split-system air conditioners, this indoor cabinet also contains a furnace or an air handler. The air conditioner's evaporator coil is installed in the cabinet or main supply duct of this furnace or heat pump. If your home already has a furnace but no air conditioner, a split system is the most economical central air conditioner to install.
2. Packaged central air conditioner Benefits of a central air-conditioning systemIn a packaged central air conditioner, the evaporator, condenser, and compressor are all located in one cabinet, which usually is placed on a roof or on a concrete slab next to the house's foundation. Air supply and return ducts come from indoors through the home's exterior wall or roof to connect with the packaged air conditioner, which is usually located outdoors. Packaged air conditioners often include electric heating coils or a natural gas furnace. This combination of air conditioner and central heater eliminates the need for a separate furnace indoors.
Benefits of a central air-conditioning system
-Indoor comfort during warm weather – Central air conditioning helps keep your home cool and reduces humidity levels. - As your central air-conditioning system draws air out of the rooms in your house through return air ducts, the air is pulled through an air filter, which removes airborne particles such as dust and lint. Sophisticated filters, like those found in the Lennox Healthy Climate® purification systems, may remove microscopic pollutants, as well. The filtered air is then routed to air supply ductwork that carries it back to the rooms. – Cleaner air. Because the compressor-bearing unit is located outside the home, the indoor noise level from its operation is much lower than that of a free-standing air- conditioning unit.
What is the difference between VRV & VRF systems
VRV is short for Variable Refrigerant Volume. VRF stands for Variable Refrigerant Flow. The fact is, these are two different names for the same basic technology. Why are there two names for the same thing? Back in 1982, Daikin Industries invented the first Variable Refrigerant Volume system and trademarked the term VRV. When other companies came along later and developed systems using similar technology, they had to call it something else. That’s where the term Variable Refrigerant Flow came from.


What is Exhaust Hood?
A range hood is a vent hood or exhaust hood, is an enclosure for the area over your range that uses a fan to collect steam, smoke, fumes and other airborne particles nder the stove.
What Are Ducted Range Hoods?
Ducted hoods are fairly common, although some kitchen designs may limit where they can be installed, due to the fact that these hoods need to be able to move the air out of the kitchen. In this way, they are restricted as to where they can be placed in the kitchen. A ducted range hood must be connected to a duct with pipes that carry the airborne particles away from the kitchen to the outdoors. This is what differentiates it from a ductless range hood, which instead just recirculates through a filter and then back into the kitchen.
What Are Ductless Range Hoods?
Ductless hoods can be installed almost anywhere. Since they don’t need to vent to your home’s exterior and are ductless, you are not required to install them only where there is a duct. These hoods operate by filtering the air they suck in and then blowing it back out into the room, essentially using a recirculation process.
The Pros & Cons
By weighing the various advantages and disadvantages of each type of hood, you can better decide which one is most suitable for your particular kitchen.
My experience with JW Plumbing has been exceptional from start to finish. A lot of prior research went into my ultimate decision to go with JW for my air conditioning needs. Josh Weinstein impressed me from the get-go with his honest and straight forward demeanor. Coupled with his competitive pricing and knowledgeable assessment of my situation, I was sold. That being said, the work that was done exceeded my expectations. The technician was efficient, focused, respectful and tidy. Two thumbs up for JW Plumbing!!
Howard Rothstein, Cote Saint-Luc, Quebec

Bi-energy Heat Pumps


Combined renewable and traditional energy sources with a smart hybrid heat pump for heating, cooling, and hot water.  



An efficient system for the house and driveway, parking lots. A single system that operates in two different and distinct ways. 


Extended to March 31, 2021- province of Québec

JW supports the Rénoclimat subsidy program, which targets (individuals or businesses) who wish to renovate to improve their energy efficiency. 

Wide JW Network

JW Plumbing & Heating is a family-owned and operated business located in Montreal, Quebec. JW specializes in residential and industrial service of all plumbing, heating, and natural gas systems.

We reach Island of Montreal, Greater Montreal and all of Quebec.

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J.W. Plumbing & Heating Inc.
3880 de Courtrai,
Montreal, QC, H3S 1C1, CANADA


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