A-1 Window Cleaning logo

A-1 Window Cleaning

Window cleaning service · South Lake Tahoe, CA · reviewed since 2018

How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%100+58.7Reliability 26%99+25.8Value 15%100+15.2Experts Score= 100Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.100SCORE
AGradeLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#1 of 67 commercial cleaning servicesPosition by Experts Score among all companies we track in this category. · better than 100%
5.0 ★★★★★ 205 Google reviews · 24 photos
100%five-star reviews
5.00★last 12 monthsAverage stars on reviews from the last 12 months only.
0%1–2★ in 2 yearsShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
35%reviews answered by the owner
Oct 2026latest review

A-1 Window Cleaning at a glance

Google reviewers rate A-1 Window Cleaning five stars based on two hundred and five reviews, with the owner responding to thirty-five percent of them. Customers frequently cite punctuality, professional communication, and reasonable pricing as key benefits of the service. The team is described as thorough and friendly, handling difficult angles and cleaning windows, screens, frames, and gutters effectively. Long-term clients highlight reliability and attention to detail, while no common criticisms appear in the provided excerpts.

  • Google rating: 5.0 out of 5 from 205 reviews (100% five-star).
  • Reviews on this page: 205 Google reviews (188 with written comments, 4 with photos).
  • Owner responses: the business replied to 35% of reviews.
  • Most recent review: October 7, 2026.
  • Service: Commercial Cleaning Service serving South Lake Tahoe, California.

Data from Google, last updated November 10, 2026.

Score profile vs other commercial cleaning services

Score per factor (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: satisfaction and craft & service; weakest: reliability.

Satisfaction100Reliability99Craft & service100Value100Momentum100Replies to reviews–Satisfaction: 100 (median 91)Reliability: 99 (median 89)Craft & service: 100 (median 98)Value: 100 (median 100)Momentum: 100 (median 100)
A-1 Window CleaningCommercial Cleaning Services median0 = centre, 100 = best
SatisfactionSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.A-1 Window Cleaning: 100/100 on this factor. Category median: 91.A
100
ReliabilityReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.A-1 Window Cleaning: 99/100 on this factor. Category median: 89.A
99
Craft & serviceCraft & service · penalty only, up to −10 pointsGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.A-1 Window Cleaning: 100/100 on this factor. Category median: 98.A
100
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.A-1 Window Cleaning: 100/100 on this factor. Category median: 100.A
100
MomentumMomentum · penalty only, up to −10 pointsPenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.A-1 Window Cleaning: 100/100 on this factor. Category median: 100.A
100
Replies to reviewsReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.Not enough reviews for this factor yet. Category median: 61.–
–

Bar = this company · dark tick = category median.

Star ratings

205 Google reviews we collected

  • 5 stars205100%
  • 4 stars00%
  • 3 stars00%
  • 2 stars00%
  • 1 star00%

Praise vs complaints

Phrases our text analysis found in 188 written reviews

  • Praise34999%
  • Complaints41%

PriceGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.

Price verdicts customers left with their Google review

  • Great price529%
  • Reasonable1271%
  • Overpriced00%
  • Not sure00%

Topic share

How often each topic comes up in the written reviews

  • Quality & results11031%
  • Would recommend6418%
  • Staff & attitude5917%
  • Speed & response5415%
  • Price & value298%
  • Honesty & trust195%
  • Communication185%

What customers talk about

We read 188 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.

  • “They always arrive on time, do a great job, and clean up before they leave.”
  • “Definitely will be using them again and highly recommend them.”
    “You did a fantastic job; I can't recommend you enough!”
  • “He is professional, punctual, friendly, and pays great attention to detail.”
  • “He was very friendly, efficient, and worked hard to be sure it was done perfectly.”
  • “His prices are very reasonable, especially considering the excellent quality of his job.”
  • “It’s rare to find someone so reliable and dedicated to excellent customer service.”
  • “He was Pleasant, professional and communicated well.”
    “We have a three-story home in upper Kingsbury with windows that are hard to reach, and he came on an extremely windy day.”

People customers mention

  • Josh 63 reviews
  • Summer 16 reviews

praise complaint · found by our text analysis, Google review wording unchanged.

Reviews for your job

Customers hired A-1 Window Cleaning for 4 kinds of job. Pick one to see what they paid and said.

Recent reviews

Stephen2 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · Edited a month ago★★★★★

I have been using A-1 Window Cleaning for about 20 years. On my own house and construction cleaning. Josh is dependable and gets the job done.

Reasonable priceInterior & exterior window cleaning
MeganLocal Guide · 21 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

Josh and Isaiah did a spectacularjob in our windows. I'd have them back in a heartbeat!

Reasonable priceInterior & exterior window cleaning
kelly5 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

A1 window cleaning is by far the best around South lake Tahoe. The two-person team was excellent. Very good quality control. Very friendly and a pleasure to work with

Great priceInterior & exterior window cleaning
Ophelia9 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

Speedy and detailed work. Clean and professional. Thank you for a great job done!

Great priceInterior & exterior window cleaning
Julie1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 2 months ago★★★★★

A-1 has cleaned our windows for over 5 years. They always arrive on time, do a great job, and clean up before they leave. Still have very reasonable prices. We will continue to make them our go to window cleaners.

Rick4 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 3 months ago★★★★★

Excellent window cleaning inside and out. They are so clean, it’s like the windows aren’t even there!

Reasonable priceInterior & exterior window cleaning

Photos

Customer reviews

5.0 ★★★★★ 205 reviews on Google · rating breakdown

Reviews from Google, shown as published (original wording, unedited).

Jobs customers hired them for — from Google's service tags and the review text
Team members customers mention
Filter by topic — each topic is highlighted in the reviews in the same color
Stephen Swartz2 reviewsTotal number of Google reviews Stephen has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

I have been using A-1 Window Cleaning for about 20 years. On my own house and construction cleaning. Josh is dependable and gets the job done.

  • Price assessment: Reasonable price
  • Services: Interior & exterior window cleaning
Response from the owner · a year ago

Thank you Steve. You will always be one of my favorites!

Megan WaltonLocal Guide · 21 reviewsTotal number of Google reviews Megan has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Josh and Isaiah did a spectacularjob in our windows. I'd have them back in a heartbeat!

  • Price assessment: Reasonable price
  • Services: Interior & exterior window cleaning
Blanka FrankeLocal Guide · 45 reviewsTotal number of Google reviews Blanka has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Our windows, screens and window frames are sparkly clean! Highly recommend!

  • Services: Interior & exterior window cleaning, Rooftop/skylight cleaning
kelly gollan5 reviewsTotal number of Google reviews kelly has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

A1 window cleaning is by far the best around South lake Tahoe. The two-person team was excellent. Very good quality control. Very friendly and a pleasure to work with

  • Price assessment: Great price
  • Services: Interior & exterior window cleaning
Ophelia9 reviewsTotal number of Google reviews Ophelia has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Speedy and detailed work. Clean and professional. Thank you for a great job done!

  • Price assessment: Great price
  • Services: Interior & exterior window cleaning
Julie Clayton1 reviewTotal number of Google reviews Julie has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

A-1 has cleaned our windows for over 5 years. They always arrive on time, do a great job, and clean up before they leave. Still have very reasonable prices. We will continue to make them our go to window cleaners.

Stephen SkaggsLocal Guide · 17 reviewsTotal number of Google reviews Stephen has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Always like using Josh for windows!

  • Services: Interior & exterior window cleaning
Response from the owner · 2 months ago

I always like cleaning your windows! Thank you!

Chris Zanobini8 reviewsTotal number of Google reviews Chris has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Josh is great. Professional and Does a great job!

  • Price assessment: Great price
  • Services: Interior & exterior window cleaning
Response from the owner · 3 months ago

You have such an amazing view! I always enjoy cleaning your windows.

Tom Qvistgaard7 reviewsTotal number of Google reviews Tom has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Another year and Josh did a great job on the windows. Thank you Josh.

Response from the owner · 3 months ago

It is always a pleasure to clean your windows! We love this stuff!

Rick H4 reviewsTotal number of Google reviews Rick has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Excellent window cleaning inside and out. They are so clean, it’s like the windows aren’t even there!

  • Price assessment: Reasonable price
  • Services: Interior & exterior window cleaning
Response from the owner · 3 months ago

Thar's the goal! Just don't run into them. Thank you

A-1 Window Cleaning on Google Maps →

Business details