North Shore
South Shore

Our services in Longueuil and on the South Shore

Washing your windows

If you wash your windows yourself, you probably do it when spring returns or shortly before fall. As a result, you make sure you have nice clean windows before summer or winter, depending on the weather. Did you know that you could have your windows cleaned more than twice a year?

By entrusting the cleaning of your windows to the professionals of 123 Entretien de Longueuil, you kill two birds with one stone: you benefit from optimal window cleaning , fast, professional and efficient, while not having to block a day to clean your windows yourself. Simple, no?

Contact us now to get your quote for a 123 window cleaning service in Longueuil!

Draining and unclogging gutters

Your eavestroughs are designed to drain the water out of your roof, to prevent weather damage to your roof over the long term. To get there, your gutters need to be clean and empty, to allow the liquid to flow normally.

You do not have to worry about it: do not make yourself a stuntman trying to clean your gutters yourself with a ladder. Call on our 123 Longueuil Maintenance Experts! We have the equipment, we have the know-how: in no time, your gutters will be clean and more efficient than ever.

Contact us now to get your quote for 123 Gutter Cleaning in Longueuil!

Pressure washing your house

Whether your stoop is dirtier than dirty, your backyard trail slabs have lost their original color from bad weather or you just want a deep wash, high-pressure washing is excellent solution. Rather than having to get <a href=", contact us.

Why? Well, we are the reference in the region of Longueuil for everything related to outdoor cleaning and maintenance, so you will not go wrong choosing us. Not only will you get a high-pressure jet wash, but you’ll also benefit from the expertise and advice of our experts.

Contact us now to get a quote for 123 high pressure jet wash in Longueuil!

The evolution of Longueuil in recent years

Longueuil is the most urbanized sector in the Montérégie region and the southern suburbs of Montréal.

For 10 years, the city of Longueuil has grown by about 10,000 inhabitants in terms of population, whose multiculturalism is only increasing from year to year.

The city of Longueuil has numerous educational institutions, including the Édouard-Montpetit Cégep and the École nationale d’aérotechnique, in addition to hosting several university satellite campuses, including the Université de Montréal campus. Longueuil, the Université du Québec à Montréal campus in Longueuil, the Université de Sherbrooke campus in Longueuil and the Université du Québec campus at Trois-Rivières in Longueuil.

Longueuil also has its own public transportation system, STL (Longueuil Transportation System).

In short, the city is booming and has not finished developing, because if Old Longueuil is full of cachet and history, the new neighborhoods fill up continuously.

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The cities on the south shore that we serve and their particularities


With approximately 86,000 inhabitants, Brossard was once merged in Longueuil, between 2002 and 2005, but once again became a municipality in its own right following a referendum. The city is located along the St. Lawrence River and the Saint-Jacques River. It is possible to get there using several highways, including highways 10, 15, 20, 30 and 132, and by Highway 134 or Boulevard Taschereau.


Named in honor of Julie Gauthier, who conceded the land on which the first church of the municipality was built, Sainte-Julie is a municipality located in the Montérégie, several kilometers from the St. Lawrence River. Over the last fifteen years, the population of Sainte-Julie has remained relatively stable, remaining around 30,000 inhabitants.



The borough of Saint-Hubert is an old city located in the suburbs of Montreal; It is also the site of the Longueuil Town Hall and retains its name in honor of Hubert de Liège. The population of Saint-Hubert is 80% French and 8% English. Today, Saint-Hubert is one of the largest airports in Canada from an air traffic perspective.


Saint-Lambert is a city on the south shore of the Island of Montreal, with a population of approximately 22,000. Its motto is: “Maximus in minimis”. This one means “to be big even in the minute details”. The city was named in honor of Lambert Closse, merchant, seigneurial notary, Sergeant Major of Ville-Marie Garrison and Acting Governor of Montreal.

Saint-Bruno de Montarville

It is on the west side of Mont Saint-Bruno that the city of Saint-Bruno-de-Montarville is located, on the south shore of Montreal. “Proud of our traditions” is his motto. Saint-Bruno-de-Montarville is renowned for its ski and snowboard resort, but also for its many kilometers of walking and cross-country skiing trails that cross the famous Mont-Saint-Bruno National Park.


Composed of 17,000 inhabitants, Sainte-Catherine is a city located in the suburbs of Montreal in the Roussillon RCM, near the St. Lawrence River and close to the Lachine Rapids. One of the greatest tourist attractions in the city of Sainte-Catherine is the Récré-O-Parc, a migratory bird sanctuary for hiking and cycling on the shores of the Lachine Rapids.


Located at exit 22 on the highway, Chambly is famous for its fort, Fort Chambly, its canal or the Chambly Canal, and its white beer of the same name brewed by Unibroue. Chambly is the dominant city of the Chambly Basin census division, which includes three other cities; the city of Carignan, the city of Richelieu and the city of Saint-Mathias-sur-Richelieu.


Between the cities of La Praire and Delson is nestled Candiac , a town included in the Roussillon RCM and whose population is close to 20,000 inhabitants. Founded in 1957 on an area of 10 km2, Candiac is today a residential and industrial city, although the industrial aspect of Candiac is much stronger than the residential aspect: indeed, at its creation, it was expected 50,000 inhabitants in Candiac, which is still not the case today.

The other territories we serve

Chomedey, Laval-Ouest, Duvernay, Auteuil, St-François… and more!


Pointe-Claire, Rosemont, Centre-Ville, Montreal-Est, Verdun, Anjou, St-Léonard, Montréal-Nord, Westmount, Plateau Mont-Royal… and more!

Vitres & Gouttières – 123Entretien
995 Rue Dale
Laval, QC H7V 3V8
(514) 700-2288

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