59/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Window cleaning service”.
Best Window Cleaners in Los Altos, CA (2026)
113 window cleaners ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Los Altos: Ultra Clear Window Washing, CR Score 59/100; 5.0★ from 8 Google reviews; open 24/7.
- 6
Best for emergencies (open 24/7): Bay Area Exterior Cleaning, posts 24/7 hours; ranked #6 of 113.
- 23
Most-reviewed: Lewis Carpet Cleaners, 1,057 Google reviews at 4.9★, the most of 113 ranked; ranked #23.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
113 Los Altos window cleaners are ranked here by CR Score, from ten published factors. 24 are open 24/7, 90 open Saturdays and 48 open Sundays, based on posted hours. The median Google rating is 5.0★ across 113 rated businesses.
Top 10 window cleaners in Los Altos at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Ultra Clear Window Washing | 59 | 5.0★ (8) | Sunnyvale, 1 mi away | 24/7 | Overall |
| 2 | Diamond’s Window Cleaning | 58 | 5.0★ (69) | Santa Clara, 8 mi away | Sat · Sun | — |
| 3 | Peak Shine Window Cleaning | 58 | 5.0★ (23) | South San Francisco, 4 mi away | Sat · Sun · Evenings | — |
| 4 | MJ & Son's House Cleaning Inc | 58 | 4.9★ (58) | Sunnyvale, 4 mi away | Sat | — |
| 5 | Rustic Ridge House Cleaning Services | 58 | 5.0★ (23) | Palo Alto, 5 mi away | Sat · Sun · Evenings | — |
| 6 | Bay Area Exterior Cleaning | 58 | 5.0★ (56) | San Jose, 13 mi away | 24/7 | Emergencies |
| 7 | ZenClean | 57 | 4.8★ (46) | Sunnyvale, 8 mi away | Sat · Sun · Evenings | — |
| 8 | Supreme Power Wash | 57 | 4.9★ (102) | Cupertino, 12 mi away | Sat · Sun | — |
| 9 | Blue Oak Window Washing | 57 | 4.6★ (19) | Palo Alto, 4 mi away | 24/7 | — |
| 10 | Honey Bees Home Cleaning | 57 | 5.0★ (97) | Belmont, 14 mi away | Sat · Sun · Evenings | — |
The 113 best window cleaners in Los Altos, 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 Santa Clara, 8 mi away
58/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 69 Google reviews, listed on Google as “Window cleaning service”.
Based in South San Francisco, 4 mi away
58/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Window cleaning service”.
Based in Sunnyvale, 4 mi away
58/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Window cleaning service”.
Based in Palo Alto, 5 mi away
58/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Window cleaning service”.
Based in San Jose, 13 mi away
58/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Window cleaning service”.
#7 ZenClean
Based in Sunnyvale, 8 mi away
57/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 46 Google reviews, listed on Google as “Window cleaning service”.
Based in Cupertino, 12 mi away
57/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 102 Google reviews, listed on Google as “Window cleaning service”.
Based in Palo Alto, 4 mi away
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.6★ from 19 Google reviews, listed on Google as “Window cleaning service”.
Based in Belmont, 14 mi away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 97 Google reviews, listed on Google as “Window cleaning service”.
Based in San Jose, 14 mi away
56/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 87 Google reviews, listed on Google as “Window cleaning service”.
Based in Fremont, 8 mi away
56/100CR 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 Palo Alto, 7 mi away
56/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Window cleaning service”.
Based in Menlo Park, 6 mi away
56/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “Window cleaning service”.
Based in Santa Clara, 13 mi away
56/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.6★ from 143 Google reviews, listed on Google as “Window cleaning service”.
Based in Palo Alto, 3 mi away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 15 Google reviews, listed on Google as “Window cleaning service”.
Based in Sunnyvale, 1 mi away
56/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Window cleaning service”.
Based in East Palo Alto, 6 mi away
56/100CR ScoreRanked #18 because of its Google rating and review volume: 5.0★ from 111 Google reviews.
#19 All Five Star MJ
Based in Sunnyvale, 6 mi away
56/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 32 Google reviews, listed on Google as “Window cleaning service”.
Based in Fremont, 13 mi away
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 21 Google reviews, listed on Google as “Window cleaning service”.
Based in Foster City, 14 mi away
55/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.8★ from 63 Google reviews, listed on Google as “Window cleaning service”.
Based in Palo Alto, 5 mi away
55/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Window cleaning service”.
Based in Redwood City, 9 mi away
55/100CR ScoreRanked #23 because of its Google rating and review volume: 4.9★ from 1,057 Google reviews, the most in Los Altos.
Based in Santa Cruz, 12 mi away
55/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Window cleaning service”.
Based in Mountain View, 3 mi away
55/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 19 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 113 ranked window cleaners here; the rest are on their profiles.
Also serving Los Altos
20 more window cleaners within 15 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A Window Man | 5.0★ (2) | 5 mi |
| CA Window Cleaning | 5.0★ (1) | 12 mi |
| ClearCrest | 5.0★ (1) | 12 mi |
| Crystal Clear Window | 5.0★ (1) | 6 mi |
| Detail Geenie LLC | 3.0★ (2) | 14 mi |
| Gage Window Cleaning | 5.0★ (1) | 8 mi |
| Happy House Cleaning Services | 5.0★ (2) | 8 mi |
| Henry Pocket Frames | 5.0★ (1) | 11 mi |
| Ibeth Cleaning Service | 4.0★ (1) | 9 mi |
| ISLAS | 5.0★ (1) | 10 mi |
| Lucy's House Cleaning Service | 5.0★ (1) | 9 mi |
| Maids Patrol | 1.0★ (1) | 8 mi |
| Max Window Cleaning LLC | 5.0★ (2) | 3 mi |
| Melendez Cleaning Services | 5.0★ (1) | 8 mi |
| Professional Window Cleaning | 5.0★ (1) | 4 mi |
| Quality Matters LLC | 5.0★ (1) | 10 mi |
| Santa Clara Window Cleaning | 5.0★ (2) | 8 mi |
| Snap Services | 5.0★ (2) | 7 mi |
| Transpacific Building Maintenance, Inc. | 5.0★ (2) | 9 mi |
| VFMS LLC | 5.0★ (2) | 13 mi |
How we ranked Los Altos window cleaners
We scored 113 Los Altos 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 Los Altos 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 Los Altos: frequently asked questions
Who is the best window cleaner in Los Altos?
By CR Score, the highest-ranked window cleaner in Los Altos, CA is Ultra Clear Window Washing with a CR Score of 59/100. It has 5.0★ from 8 Google reviews. It is open 24/7. Diamond’s Window Cleaning (#2) and Peak Shine Window Cleaning (#3) follow. We ranked 113 window cleaners on ten factors, last updated November 3, 2026.
How many window cleaners are there in Los Altos?
ContractorsRanked ranks 113 window cleaners serving Los Altos, CA. Another 20 within 15 mi are listed but not ranked yet. Counts are as of November 2026.
Which window cleaners in Los Altos are open 24/7?
24 ranked window cleaners in Los Altos post 24/7 hours. The highest-ranked are Ultra Clear Window Washing (#1), Bay Area Exterior Cleaning (#6) and Blue Oak Window Washing (#9). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which window cleaners in Los Altos work on weekends?
90 of 113 ranked window cleaners post Saturday hours and 48 post Sunday hours. The highest-ranked open Saturdays are Ultra Clear Window Washing (#1), Diamond’s Window Cleaning (#2) and Peak Shine Window Cleaning (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Los Altos window cleaners have?
The median Google rating among 113 rated window cleaners in Los Altos is 5.0★, with a median of 19 reviews. Lewis Carpet Cleaners has the most, 1,057 reviews, and ranks #23. 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 Los Altos count in this ranking?
Yes, if they are within 15 mi of the Los Altos city center, 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 Los Altos
- November 2026: CR Scores recalculated for 113 window cleaners serving Los Altos.
More window cleaners and Los Altos pages
Window cleaners near Los Altos
- Window cleaners in Mountain View, CA114 ranked
- Window cleaners in Stanford, CA106 ranked
- Window cleaners in Palo Alto, CA112 ranked
- Window cleaners in Sunnyvale, CA119 ranked
- Window cleaners in East Palo Alto, CA110 ranked
- Window cleaners in Menlo Park, CA99 ranked
- Window cleaners in Cupertino, CA116 ranked
- Window cleaners in North Fair Oaks, CA101 ranked
- Window cleaners in Santa Clara, CA105 ranked
- Window cleaners in Redwood City, CA85 ranked
Other trades in Los Altos
- Roofers in Los Altos685 ranked
- Plumbers in Los Altos589 ranked
- Electricians in Los Altos429 ranked
- HVAC contractors in Los Altos521 ranked
- General contractors in Los Altos830 ranked
- Painters in Los Altos194 ranked
- Landscapers in Los Altos226 ranked
- Handymen in Los Altos98 ranked
- Kitchen remodelers in Los Altos473 ranked
- Bathroom remodelers in Los Altos437 ranked
- Flooring contractors in Los Altos277 ranked
- Tile installers in Los Altos78 ranked
- Drywall contractors in Los Altos29 ranked
- Concrete contractors in Los Altos239 ranked
- Fence contractors in Los Altos122 ranked
- Deck builders in Los Altos95 ranked
- Siding contractors in Los Altos85 ranked
- Window installers in Los Altos277 ranked
- Gutter installers in Los Altos169 ranked
- Insulation contractors in Los Altos86 ranked
- Solar installers in Los Altos282 ranked
- Garage door repair companies in Los Altos201 ranked
- Foundation repair companies in Los Altos108 ranked
- Tree services in Los Altos239 ranked
- Masonry contractors in Los Altos107 ranked
- Water damage restoration companies in Los Altos365 ranked
- Home builders in Los Altos467 ranked
- Demolition contractors in Los Altos78 ranked
- Pressure washing companies in Los Altos85 ranked
- Pest control companies in Los Altos181 ranked
- Paving contractors in Los Altos148 ranked
- Auto glass repair shops in Los Altos265 ranked
- Septic service companies in Los Altos56 ranked
- Excavating contractors in Los Altos62 ranked
- Pool builders in Los Altos178 ranked
- All contractors in Los Altos