60/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Window cleaning service”.
Best Window Cleaners in Los Osos, CA (2026)
8 window cleaners ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Los Osos: Bright Side SLO, CR Score 60/100; 5.0★ from 46 Google reviews; open 24/7.
- 3
Most-reviewed: Clearview San Luis Obispo, 245 Google reviews at 5.0★, the most of 8 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
8 Los Osos window cleaners are ranked here by CR Score, from ten published factors. 1 is open 24/7, 5 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 5.0★ across 8 rated businesses.
Most of this list also appears on the Window cleaners in San Luis Obispo ranking. See Window cleaners in San Luis Obispo
Top 8 window cleaners in Los Osos at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Bright Side SLO | 60 | 5.0★ (46) | San Luis Obispo, 13 mi away | 24/7 | Overall |
| 2 | Sunny Duck Pressure Washing, LLC | 54 | 5.0★ (3) | Santa Maria, 6 mi away | Sat | — |
| 3 | Clearview San Luis Obispo | 53 | 5.0★ (245) | San Luis Obispo, 12 mi away | — | Most reviews |
| 4 | SLO Splash Bros. | 51 | 5.0★ (17) | San Luis Obispo, 8 mi away | Sat · Sun | — |
| 5 | Central Coast Window Cleaning Inc | 50 | 4.0★ (3) | San Luis Obispo, 10 mi away | — | — |
| 6 | Crystal Clean A1 Window Cleaning Services Inc. | 49 | 5.0★ (3) | San Luis Obispo, 10 mi away | Sat | — |
| 7 | City Wide Facility Solutions - Central Coast | 48 | 5.0★ (7) | San Luis Obispo, 11 mi away | Sat · Sun | — |
| 8 | Pacific Building Care Janitorial | 46 | 5.0★ (6) | San Luis Obispo, 10 mi away | Evenings | — |
The 8 best window cleaners in Los Osos, 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 Maria, 6 mi away
54/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Window cleaning service”.
Based in San Luis Obispo, 12 mi away
53/100CR ScoreRanked #3 because of its Google rating and review volume: 5.0★ from 245 Google reviews, the most in Los Osos.
Based in San Luis Obispo, 8 mi away
51/100CR ScoreRanked #4 because of its Google rating and review volume: 5.0★ from 17 Google reviews.
Based in San Luis Obispo, 10 mi away
50/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.0★ from 3 Google reviews, listed on Google as “Window cleaning service”.
Based in San Luis Obispo, 10 mi away
49/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Pressure washing service”.
Based in San Luis Obispo, 11 mi away
48/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Janitorial service”.
Based in San Luis Obispo, 10 mi away
46/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Janitorial service”.
How we ranked Los Osos window cleaners
We scored 8 Los Osos 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 Osos 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 Osos: frequently asked questions
Who is the best window cleaner in Los Osos?
By CR Score, the highest-ranked window cleaner in Los Osos, CA is Bright Side SLO with a CR Score of 60/100. It has 5.0★ from 46 Google reviews. It is open 24/7. Sunny Duck Pressure Washing, LLC (#2) and Clearview San Luis Obispo (#3) follow. We ranked 8 window cleaners on ten factors, last updated November 3, 2026.
How many window cleaners are there in Los Osos?
ContractorsRanked ranks 8 window cleaners serving Los Osos, CA. Counts are as of November 2026.
Which window cleaners in Los Osos are open 24/7?
1 ranked window cleaner in Los Osos posts 24/7 hours. The highest-ranked is Bright Side SLO (#1). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which window cleaners in Los Osos work on weekends?
5 of 8 ranked window cleaners post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Bright Side SLO (#1), Sunny Duck Pressure Washing, LLC (#2) and SLO Splash Bros. (#4). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Los Osos window cleaners have?
The median Google rating among 8 rated window cleaners in Los Osos is 5.0★, with a median of 7 reviews. Clearview San Luis Obispo has the most, 245 reviews, and ranks #3. 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 Osos count in this ranking?
Yes, if they are within 15 mi of the Los Osos 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 Osos
- November 2026: CR Scores recalculated for 8 window cleaners serving Los Osos.
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