64/100CR Score
Ranked #1 because of its Google rating and trade focus: 5.0★ from 267 Google reviews, listed on Google as “Window cleaning service”.
Best Window Cleaners in Frederick, MD (2026)
19 window cleaners ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Frederick: Sky Cleaning, CR Score 64/100; 5.0★ from 267 Google reviews; open Saturdays until 6 PM.
- 4
Best for emergencies (open 24/7): GutterMaid, posts 24/7 hours; ranked #4 of 19.
- 4
Most-reviewed: GutterMaid, 769 Google reviews at 4.9★, the most of 19 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
19 Frederick window cleaners are ranked here by CR Score, from ten published factors. 3 are open 24/7, 15 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.9★ across 19 rated businesses.
Top 10 window cleaners in Frederick at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Sky Cleaning | 64 | 5.0★ (267) | Frederick | Sat | Overall |
| 2 | Pristine Cleaning Team | 63 | 4.9★ (101) | Frederick | Sat · Sun · Evenings | — |
| 3 | Molly Maid of Greater Frederick and Columbia | 63 | 4.5★ (304) | Frederick | Sat · Sun | — |
| 4 | GutterMaid | 62 | 4.9★ (769) | Frederick | 24/7 | Emergencies, Most reviews |
| 5 | Maid-Me Cleaning Svc. | 59 | 4.6★ (78) | Frederick | Sat | — |
| 6 | S n S Window Cleaning, LLC | 59 | 4.9★ (45) | Frederick | Sat | — |
| 7 | Window Genie of Frederick | 59 | 4.8★ (504) | Frederick | 24/7 | — |
| 8 | SHINE PRO SERVICES LLC | 58 | 5.0★ (24) | Frederick | Sat | — |
| 9 | Real Clean Solutions | 57 | 4.9★ (35) | Frederick | — | — |
| 10 | Bestts Janitorial Services | 56 | 5.0★ (3) | Frederick | 24/7 | — |
The 19 best window cleaners in Frederick, 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 Frederick
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 101 Google reviews, listed on Google as “Window cleaning service”.
Based in Frederick
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.5★ from 304 Google reviews, listed on Google as “Window cleaning service”.
#4 GutterMaid
Based in Frederick
62/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 769 Google reviews, the most in Frederick.
Based in Frederick
59/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.6★ from 78 Google reviews, listed on Google as “Window cleaning service”.
Based in Frederick
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “Window cleaning service”.
Based in Frederick
59/100CR ScoreRanked #7 because of its Google rating and review volume: 4.8★ from 504 Google reviews.
Based in Frederick
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Window cleaning service”.
Based in Frederick
57/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 35 Google reviews, listed on Google as “Window cleaning service”.
Based in Frederick
56/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Window cleaning service”.
Based in Frederick
56/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.7★ from 10 Google reviews, listed on Google as “Window cleaning service”.
Based in Frederick
56/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Window cleaning service”.
Based in Ballenger Creek, 4 mi away
55/100CR ScoreRanked #13 because of its Google rating and review volume: 5.0★ from 174 Google reviews.
Based in Frederick
55/100CR ScoreRanked #14 because of its Google rating and review volume: 5.0★ from 74 Google reviews.
#15 Captain Scrubby
Based in Frederick
54/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Window cleaning service”.
Based in Frederick
52/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.6★ from 31 Google reviews, listed on Google as “Pressure washing service”.
#17 We Wash LLC
Based in Halfway, 10 mi away
47/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.6★ from 19 Google reviews, listed on Google as “Pressure washing service”.
Based in Germantown, 8 mi away
45/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Pressure washing service”.
Based in Germantown, 8 mi away
45/100CR ScoreRanked #19 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “House cleaning service”.
Also serving Frederick
8 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 |
|---|---|---|
| Blue Curb, LLC | In Frederick | |
| Blue Ridge Shine - Housewash Window Cleaning | 5.0★ (1) | In Frederick |
| Brighter Days Window Cleaning | 5.0★ (2) | In Frederick |
| Cleaning Services TCS | In Frederick | |
| DBS Building Solutions of MD | 5.0★ (1) | In Frederick |
| DMV Exteriors & Restoration | 5.0★ (43) | In Frederick |
| KD Pro Window Cleaning | 5.0★ (1) | In Frederick |
| Natali Cleaning Services | 2.0★ (1) | 6 mi |
How we ranked Frederick window cleaners
We scored 19 Frederick 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 Frederick 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 Frederick: frequently asked questions
Who is the best window cleaner in Frederick?
By CR Score, the highest-ranked window cleaner in Frederick, MD is Sky Cleaning with a CR Score of 64/100. It has 5.0★ from 267 Google reviews. It is open Saturdays until 6 PM. Pristine Cleaning Team (#2) and Molly Maid of Greater Frederick and Columbia (#3) follow. We ranked 19 window cleaners on ten factors, last updated November 3, 2026.
How many window cleaners are there in Frederick?
ContractorsRanked ranks 19 window cleaners serving Frederick, MD. 15 of them are based in Frederick; the rest serve it from nearby towns. Another 8 within 15 mi are listed but not ranked yet. Counts are as of November 2026.
Which window cleaners in Frederick are open 24/7?
3 ranked window cleaners in Frederick post 24/7 hours. The highest-ranked are GutterMaid (#4), Window Genie of Frederick (#7) and Bestts Janitorial Services (#10). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which window cleaners in Frederick work on weekends?
15 of 19 ranked window cleaners post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Sky Cleaning (#1), Pristine Cleaning Team (#2) and Molly Maid of Greater Frederick and Columbia (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Frederick window cleaners have?
The median Google rating among 19 rated window cleaners in Frederick is 4.9★, with a median of 35 reviews. GutterMaid has the most, 769 reviews, and ranks #4. 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 Frederick count in this ranking?
Yes, if they are within 15 mi of the Frederick 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 Frederick
- November 2026: CR Scores recalculated for 19 window cleaners serving Frederick.
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