Cleaning companies · Ontario

Cleaning companies in Markham, ON

145 cleaning companies in Markham with phone numbers, 46 with email addresses. Search the list, unlock the ones you want and start calling today.

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145
businesses
100%
have a phone number
32%
have an email address (46)
4.6★
average Google rating
Sample

A sample of cleaning companies in Markham

Twelve of the 145 cleaning companies on the list. Phone numbers and emails unlock in the app — 1 credit per business, both together.

BusinessCategoryRatingWebsitePhoneEmail
Wynford ServicesCleaning service4.7★Yes(905) •••-••••Available
Jani-KingJanitorial service5.0★Yes(647) •••-••••Available
Brothers Clean ProJanitorial service5.0★Yes(437) •••-••••Available
iKleen Pro Cleaning ServicesCleaners5.0★Yes(647) •••-••••Available
UniJan Facility ServicesCleaning service5.0★Yes(416) •••-••••Available
Squeaky Cleaning ThornhillHouse cleaning service5.0★Yes(647) •••-••••Available
Centaur Floor Machines Ltd.Manufacturer4.9★Yes(905) •••-••••Available
Royal CaspianJanitorial service5.0★Yes(437) •••-••••Available
QC Residential Solution 優之選家居服務House cleaning service5.0★Yes(647) •••-••••Available
Fresh KleenHouse cleaning service5.0★Yes(705) •••-••••Available
Pure and CleaningCleaners5.0★Yes(437) •••-••••Available
Sunset Window CleaningWindow cleaning service5.0★Yes(905) •••-••••Available

Showing 12 of 145. Data refreshed October 2026.

The market

What Markham's cleaning companies look like

76% of rated cleaning companies here hold 4.5★ or better — a competitive market where reviews are table stakes.
35 carry a perfect 5.0★ rating; 77 have no rating yet — prime prospects for review and reputation services.
37 (26%) have no website listed — a ready-made list for web design and SEO offers.
23% link a Facebook or Instagram page from their listing.

Most common listings

  • Professional Cleaning Service40
  • House cleaning service21
  • Cleaning service14
  • Carpet and Flooring Contractor; Professional Cleaning Service14
  • Janitorial service11
  • Cleaners11

Area codes

  • (905)58
  • (647)36
  • (416)27
  • (437)9
  • (289)6
  • (888)3
Playbook

How to sell to cleaning companies in Markham

Commercial janitorial firms, residential maid services, carpet and window cleaners, and post-construction cleaners. Margins come from recurring contracts and efficient routes, and staff turnover is a constant headache.

Who sells to cleaning companies

  • Scheduling, route and payroll software
  • Janitorial supply distributors
  • Marketing agencies for recurring residential clients
  • Bonding and liability insurance
  • Commercial-contract lead services
  • Staffing and background-check providers

What keeps owners up at night

  • Staff turnover and reliability
  • Winning and keeping commercial contracts
  • Thin margins on one-off jobs
  • Quality control across many sites
When to reach themCommercial cleaning owners often work evenings, so mid-morning to early afternoon is the best window to reach them.
The angle that worksRecurring contracts and retention. Anything that helps them land one more office building or cut turnover pays for itself fast.
Reaching out in CanadaCold email to Canadian businesses falls under CASL, and phone outreach falls under the CRTC's telemarketing rules. A business address that's published publicly can support implied consent for messages relevant to that business, but every email still needs your identity and a working unsubscribe. Read our plain-English CASL guide and cold-calling rules before your first campaign.
FAQ

Questions about Markham cleaning companies leads

How many cleaning companies in Markham, ON are in the database?
145 cleaning companies in Markham, ON, as of October 2026. 145 of them have a phone number and 46 have an email address.
How much does it cost to get these leads?
Every account starts with 25 free credits. Unlocking a contact (phone and email together) costs 1 credit. The Starter plan is $39/month for 2,500 credits — about 1.6¢ a contact — so the whole Markham list of 145 costs less than one month of Starter. See pricing.
Can I export the list to a dialer or CRM?
Yes. Unlocked contacts export to CSV, Excel or JSON with phone, email, website, address, category and rating, ready for any dialer or CRM.
Where does the data come from?
From public business listings — the same information cleaning companies publish so customers can find them — cleaned, de-duplicated by phone number and refreshed regularly. Businesses can ask to be removed at any time.

Cleaning companies in other cities

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Other businesses in Markham

HVAC companiesElectrical contractorsConstruction companiesLandscaping companiesDental clinicsLaw firmsMedical clinicsEverything in Markham →

Start calling Markham cleaning companies today

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