37 Avenue Stirling



438-796-3978 / RBQ : 2530-1839


GAZ NAT-MAR INC was founded in 1989 and is specialized in heating systems and plumbing. We are located in Lasalle and operate all over Montreal, the North Shore and South Shore areas.

We offer quality services at reasonable prices.

Our specialized services

Since 2007 the company has been run by Stéphan Lasnier and Sylvain Rivard, our staff provide high quality service for residential, commercial and industrial buildings.

We install, check and maintain all types of heating systems. We work extensively on gas appliances and burners (underfloor heating, infra-red & aerothermal heaters). We are also specialized in the now extensively proven hydronic heating systems.

Our teams are highly reactive and can respond rapidly to all of your heating repair requirements.

A reference plumbing and heating system company in Montreal's North and South Shore areas


Service d’appareils à gaz Montréal

Entrust us with your project!

Quality services

Thanks to our extensive know-how and experience we can guarantee unbeatable service. We are at your service for rapid and professional interventions.

Our watchwords are care, rigour and prudence, we can also help you to reduce your energy consumption, and advise you in your choice of the heating system most suited to your needs.

Our experience and professionalism are proven guarantees of the quality of our work


Service d’appareils à gaz Montréal

With GAZ NAT-MAR INC., you will benefit from

The service of a qualified and versatile team

Thanks to our experience and know-how, we guarantee a quality work.

Rapid interventions

We offer fast and efficient service.

Sound and informed advice

We will help you reduce your energy consumption.

Fill out the form for any queries or quotation requests.

Care, rigour and precaution are our watchwords in the execution of your work. We are one of the best plumbers/heating engineers in the area.

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