Claritas cleans commercial buildings, offices, clinics, restaurants and condominium common areas across Greater Montreal, Laval, the South Shore and the North Shore. Work is scheduled around your hours, including evenings and weekends. Request a quote online or call 514-442-6544.
Is your space coming out of restoration work after water damage or a fire? We also offer post-restoration final cleaning once the work is complete.
Claritas provides commercial cleaning for offices, commercial buildings and professional spaces across Greater Montreal (including the West Island), Laval, the North Shore and the South Shore (Vaudreuil-Soulanges and Saint-Hyacinthe: upon confirmation only). We clean daily, several times a week or weekly, including evenings, weekends and after hours. The site walkthrough and the quote are free, with a response within 24 hours. Looking for office cleaning? Read our commercial cleaning guide. Running a medical, dental or physiotherapy clinic? See our clinic cleaning.
Carefully selected team
Flexible scheduling: daytime, evenings, weekends, or after hours
follow-up after every visit
Custom cleaning plan based on your space and traffic patterns
We follow a structured process for clean spaces and an environment ready to welcome your clients.
We assess your space and your specific needs to build a cleaning plan suited to your industry and schedule.
Our trained team carries out the cleaning according to the agreed protocol using appropriate products and equipment.
After every visit, we follow up with you on quality to confirm the work done and correct anything needed.
follow-up after every visit
Initial walkthrough and needs assessment
Custom cleaning plan and schedule proposal
Ongoing service according to the agreed plan
follow-up after every visit
From a downtown office floor or a professional suite in Saint-Laurent to a retail store in Longueuil or Brossard, we plan the cleaning around your traffic and your opening hours. We cover the whole island of Montreal, including the West Island, plus Laval, the North Shore and the South Shore (Longueuil, Saint-Hubert, Brossard, Boucherville, Saint-Bruno-de-Montarville and Chambly).
Small and mid-sized businesses, professional offices, retailers, clinics and property managers who want one provider for their offices and common areas. Mostly need after-hours office cleaning? See our office cleaning page.
Service in English and French, from the first call to the follow-up.
Frequently asked questions about our commercial cleaning service.
Office buildings, retail spaces, medical and health clinics, restaurants, condominium common areas, and construction sites at handover (post-construction cleaning).
Yes. Regular cleaning can be combined with floor maintenance (stripping, waxing, polishing) as part of your plan.
By size, condition, frequency and the tasks included. We assess your needs by phone, from photos or during a visit, then send a personalized quote.
Yes. Every site gets the same standard, with a follow-up after every visit.
Access arrangements for your premises are agreed with you before the first visit.
Montreal, Laval, the South Shore and the North Shore. Vaudreuil-Soulanges and Saint-Hyacinthe: upon confirmation only.
Entretien et Services Claritas cleans offices, stores and condominium common areas, and provides general cleaning for clinics and restaurants, in Montreal, Laval, the North Shore and the South Shore. Free quote with a reply within 24 hours, and a free site visit. Phone: 514-442-6544.
Yes. Visits can be scheduled during the day, in the evening, on weekends or after hours, whichever disrupts your business the least.
Yes. The walkthrough of your premises and the quote are free, with no obligation. Request it online or call 514-442-6544.
Yes. We serve businesses in Longueuil (including Saint-Hubert), Brossard, Boucherville, Saint-Bruno-de-Montarville, Chambly and nearby, with the same free quote and site visit as in Montreal.
Get your Request a commercial quote.
Our teams come to your premises in the following 20 areas.
Entretien et Services Claritas does commercial and office cleaning on the South Shore: Longueuil (incl. Saint-Hubert), Brossard, Boucherville, Saint-Bruno-de-Montarville, Chambly and the rest of La Vallée-du-Richelieu and Roussillon. Offices, stores, clinics (general cleaning), restaurants (general cleaning) and condo common areas. Cleaning can be done in the evening, on weekends or outside opening hours. Every contract gets a free quote after an assessment by phone, from photos or during a visit.
Areas served: Longueuil (incl. Saint-Hubert), Brossard, Boucherville, Saint-Bruno-de-Montarville, Marguerite-D’Youville RCM, La Vallée-du-Richelieu RCM (Chambly) and Roussillon RCM.
Describe the space (type, approximate area, zones, desired frequency, schedule) in the quote form or at 514-442-6544. We assess the need, then you get a free custom quote. For a home, the residential price shows in the instant price calculator instead.
On the South Shore (Longueuil, Brossard, Boucherville, Saint-Bruno-de-Montarville, Chambly and nearby), Entretien et Services Claritas cleans offices, stores, clinics and restaurants (general cleaning) and condo common areas, in the evening, on weekends or outside opening hours. The quote is free: 514-442-6544 or entretienclaritas.ca/en/contact-us.
“Excellent service ! L’équipe de Claritas fait un travail impeccable dans notre gym privé. Toujours ponctuelle, professionnelle et soucieuse des détails.”
— Mohamed C. · Google review, July 2026 (original in French)
Request my free quoteRequest a commercial quote or call 514-442-6544
Entretien et Services Claritas cleans offices, stores, clinics, restaurants and common areas in Montreal, Laval, the North Shore and the South Shore. The site visit and quote are free: 514-442-6544.
Yes, as well as Brossard, Varennes, Candiac and La Prairie. Visits are scheduled during the day, evening or weekend around your operations.
Yes, as well as Lorraine, Terrebonne and Laval. Saint-Lazare and Hudson (Vaudreuil-Soulanges) are served on confirmation only.
Fill in the quote request at entretienclaritas.ca/en/contact-us or call 514-442-6544. The price depends on area, condition, frequency and tasks; we assess by phone, from photos or during a free visit.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
Commercial cleaning for your premises in this area.
