62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 257 Google reviews, listed on Google as “Window cleaning service”.
Best Window Cleaners in Markham, ON (2026)
218 window cleaners ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Markham: SeeyonClean Scarborough, CR Score 62/100; 4.8★ from 257 Google reviews; open 24/7.
- 7
Best for emergencies (open 24/7): Focus Cleaning, posts 24/7 hours; ranked #7 of 218.
- 10
Most-reviewed: Sunnyside Window & Eaves Cleaning, 1,347 Google reviews at 4.9★, the most of 218 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
218 Markham window cleaners are ranked here by CR Score, from ten published factors. 34 are open 24/7, 172 open Saturdays and 134 open Sundays, based on posted hours. The median Google rating is 5.0★ across 218 rated businesses.
Top 10 window cleaners in Markham at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | SeeyonClean Scarborough | 62 | 4.8★ (257) | Scarborough, 9 km away | 24/7 | Overall |
| 2 | Better Call Sal Window & Eaves Cleaning | 62 | 4.9★ (124) | Markham | Sat · Sun · Evenings | — |
| 3 | Okane Care | 62 | 5.0★ (453) | Scarborough, 11 km away | Sat · Sun · Evenings | — |
| 4 | SHACK SHINE Markham, Richmond Hill and Vaughan | 62 | 4.9★ (205) | Markham | Sat | — |
| 5 | QC Residential Solution 優之選家居服務 | 61 | 5.0★ (55) | Markham | Sat · Sun · Evenings | — |
| 6 | MintHome Clean GTA | 61 | 4.8★ (273) | Willowdale, 9 km away | Sat · Sun · Evenings | — |
| 7 | Focus Cleaning | 60 | 5.0★ (43) | Scarborough, 8 km away | 24/7 | Emergencies |
| 8 | Needs Cleaning Services | 60 | 5.0★ (47) | Scarborough, 9 km away | 24/7 | — |
| 9 | Eco Scrubbed Residential and Commercial Cleaners Markham/Richmond hill | 60 | 5.0★ (13) | Markham | 24/7 | — |
| 10 | Sunnyside Window & Eaves Cleaning | 60 | 4.9★ (1,347) | Toronto, 20 km away | Sat · Evenings | Most reviews |
The 218 best window cleaners in Markham, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Markham
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 124 Google reviews, listed on Google as “Window cleaning service”.
#3 Okane Care
Based in Scarborough, 11 km away
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 453 Google reviews, listed on Google as “Window cleaning service”.
Based in Markham
62/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 205 Google reviews, listed on Google as “Window cleaning service”.
Based in Markham
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Window cleaning service”.
Based in Willowdale, 9 km away
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 273 Google reviews, listed on Google as “Window cleaning service”.
Based in Scarborough, 8 km away
60/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Window cleaning service”.
Based in Scarborough, 9 km away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 47 Google reviews, listed on Google as “Window cleaning service”.
Based in Markham
60/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Window cleaning service”.
Based in Toronto, 20 km away
60/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 1,347 Google reviews, the most in Markham.
#11 KWL SERVICES
Based in Markham
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Window cleaning service”.
Based in Markham
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Window cleaning service”.
Based in Scarborough, 11 km away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 386 Google reviews, listed on Google as “Window cleaning service”.
Based in Richmond Hill, 5 km away
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Window cleaning service”.
#15 Real Clean
Based in Markham
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.2★ from 11 Google reviews, listed on Google as “Window cleaning service”.
Based in Vaughan, 9 km away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 115 Google reviews, listed on Google as “Window cleaning service”.
Based in Toronto, 22 km away
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 299 Google reviews, listed on Google as “Window cleaning service”.
Based in Scarborough, 5 km away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Window cleaning service”.
Based in Richmond Hill, 5 km away
59/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Window cleaning service”.
#20 Shine And Revive
Based in Richmond Hill, 19 km away
59/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 178 Google reviews, listed on Google as “Window cleaning service”.
Based in Markham
59/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 90 Google reviews, listed on Google as “Window cleaning service”.
Based in North York, 21 km away
59/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 228 Google reviews, listed on Google as “Window cleaning service”.
Based in Willowdale, 5 km away
59/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Window cleaning service”.
Based in Markham
59/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Window cleaning service”.
#25 Royal Caspian
Based in Richmond Hill, 14 km away
58/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “Window cleaning service”.
Window cleaners ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 218 ranked window cleaners here; the rest are on their profiles.
Also serving Markham
20 more window cleaners within 24 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Basement Waterproofing Markham | 5.0★ (30) | In Markham |
| Binaway Services | 5.0★ (2) | 8 km |
| Casa Limpia | 5.0★ (1) | In Markham |
| Dave's Window Cleaning | 5.0★ (1) | In Markham |
| Done Right Window Washing | 5.0★ (2) | 19 km |
| Home ShineTime | 5.0★ (1) | 5 km |
| Jani-King Barrie Commercial Cleaning Services | 5.0★ (2) | 10 km |
| Jay's windows an Eaves trough | 5.0★ (2) | 19 km |
| K.R.S.R MOBILEWASH CORP | 5.0★ (1) | 9 km |
| Lotus Property Services | 5.0★ (2) | 11 km |
| Markham Window Cleaning | In Markham | |
| MoH Cleaning Technicians | 5.0★ (2) | 8 km |
| Premium Janitorial Services | 5.0★ (1) | In Markham |
| SH Services | In Markham | |
| SqueegeeKings Window Cleaning Markham | In Markham | |
| Sunny Shine Home Care | 5.0★ (2) | 9 km |
| Vision Window Cleaning | 5.0★ (2) | 15 km |
| wco services | 5.0★ (2) | 20 km |
| Wind-O-Kleen Co Ltd | 5.0★ (1) | In Markham |
| Windows2000 - Window Cleaning | 4.5★ (2) | 19 km |
How we ranked Markham window cleaners
We scored 218 Markham window cleaners on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 3, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Markham data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Window cleaners in Markham: frequently asked questions
Who is the best window cleaner in Markham?
By CR Score, the highest-ranked window cleaner in Markham, ON is SeeyonClean Scarborough with a CR Score of 62/100. It has 4.8★ from 257 Google reviews. It is open 24/7. Better Call Sal Window & Eaves Cleaning (#2) and Okane Care (#3) follow. We ranked 218 window cleaners on ten factors, last updated November 3, 2026.
How many window cleaners are there in Markham?
ContractorsRanked ranks 218 window cleaners serving Markham, ON. 13 of them are based in Markham; the rest serve it from nearby towns. Another 20 within 24 km are listed but not ranked yet. Counts are as of November 2026.
Which window cleaners in Markham are open 24/7?
34 ranked window cleaners in Markham post 24/7 hours. The highest-ranked are SeeyonClean Scarborough (#1), Focus Cleaning (#7) and Needs Cleaning Services (#8). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which window cleaners in Markham work on weekends?
172 of 218 ranked window cleaners post Saturday hours and 134 post Sunday hours. The highest-ranked open Saturdays are SeeyonClean Scarborough (#1), Better Call Sal Window & Eaves Cleaning (#2) and Okane Care (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Markham window cleaners have?
The median Google rating among 218 rated window cleaners in Markham is 5.0★, with a median of 25 reviews. Sunnyside Window & Eaves Cleaning has the most, 1,347 reviews, and ranks #10. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank window cleaners?
Each window cleaner gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do window cleaners outside Markham count in this ranking?
Yes, if they are within 24 km of the Markham city centre, our service radius for window cleaners. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Can window cleaners pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Markham
- November 2026: CR Scores recalculated for 218 window cleaners serving Markham.
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