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 55%98+53.5Reliability 24%100+24.2Value 14%100+14.1Replies to reviews 7%100+7.1Experts Score= 99Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.99SCOREL.A. McMahon Window Washing, Inc.
Justice, IL · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #43Position by Experts Score among all companies we track in this category. of 167 window cleaning services · 5.0★ from 923 Google reviews
Report card
Percentile vs other window cleaning services (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: reliability and craft & service; weakest: satisfaction.
Reviews for your job
Customers hired L.A. McMahon Window Washing, Inc. for 6 kinds of job.
L.A. McMahon Window Washing, Inc. for interior & exterior window cleaning
Clear ✕All 292 Google reviews tagged “Interior & exterior window cleaning” · showing 60
Great company to work with very professional and friendly. The best company around to keep your windows and house clean.
Have used L.A. McMahon for window and gutter cleaning and they do great work — reliable, thorough, and easy to schedule with. They confirmed my appointment quickly and added exterior light fixture cleaning to the visit. Highly recommend
First time user and the crew was professional and friendly. A great experience.
The crew of 2 were very courteous and professional. They went above and beyond and removed a window air conditioner that was in one the windows.
Crew was top notch, fast and professional. I’ve used them for years and you can’t beat the quality of work or price.
The cleaners arrived on time and went right to work. They were careful and did a great job. I would use them again.
Always on time. Friendly and respectful. Do an excellent job. Been using for 10+ years
The team has always shown up on time and done a fine job. Easy to reach the company to set up or change appointments, staff is very friendly and competent.
Excellent work and the workers were very professional and friendly.
Excellent service. Speedy appointment with timing according to my schedule. Quiet, efficient workers. Not all companies will include skylights. Very satisfied.
They have always been very prompt, courteous. And thorough. My windows look great on completion!!
The crew (1 Inside, 1 Outside) did a great job cleaning and washing the windows, screens, and window sills. The job was done quickly and efficiently. We are going to call McMahon late fall t(after leaves are down) to price out gutters and skylight cleaning. Five stars are well deserved. TMS
The team was courteous, helpful and patient with our dog while washing many large windows inside and out. They were quick yet thorough, even in 95* heat!
I have been using LA McMahon Windows for many, many years. They have cleaned my gutters, windows and skylights. What I love is their personal service. I have spoken with Mark and Christine in the office and they are able to quickly look up my past orders and replicate that service with a great crew. They have been…
Excited to try window and gutter cleaning as a first time customer. Christine, who I spoke with on the phone was very professional and knowledgeable. Company has great reviews and reputation.
Very efficient and streak free
Nice service!
L.A. McMahon has cleaned my windows for many years. Due to that, the person I use primarily is very familiar with the screens that need to be removed with care, as well as the removable panes, in order to wash the interior windows. I’ve used them to power wash my garage also. L.A. McMahon is the only company I use because they do not disappoint.
Great communication and job! Also a pleasure to work with you.
We have used L.A. McMahon for many years and have always been pleased with their service. They do excellent work, are professional, trustworthy, and dependable. It's hard to find a company you can count on year after year, and they have consistently delivered. Highly recommend!
I've used McMahon for many years now and have always been happy with their work. Always quality service, inside and out. The team ensures that everything is left clean. Competitively priced. I find it helpful to discuss options with their booking person(s) to save on some of the services if needed. To be honest, all…
The 3 technicians did a great job. Very nice, professional and the window look amazing.
They do an awesome job cleaning my windows and screens. I have used them for over 20 years!
We had not had our windows cleaned since we moved in 4 years ago and they were in need of a good cleaning. McMahon did a great job and was on time. I would recommend them for indoor/exterior window cleaning.
Have used LA McMahon for years and they always do a great job and are very professional
Posting this review to let people know how great of an experience I have every time we use there services. Mark and his team really have shown us exceptional customer service and quality of work. If I could give 6 stars I would! Thanks again
McMahon has been washing our house windows for several years. They're neat, polite, punctual and do a good job. They were recommended to me by a neighbor and I'd highly recommend them to you.
Exceptional work at our home this past week. Our windows look new—inside and out. They were prompt, professional, and the work is perfect. Highly recommend!
We’ve used L.A. McMahon to clean the inside and outside of our windows and screens in the past. They do a wonderful job and are very gentle with the screens leaving no damage. Looking forward to having them back in a few weeks to get our windows and screens ready for summer.
We have used this company for a number of years. David is the best!
I have hired McMahon for cleaning my windows multiple times. They always do an exceptional job are completely professional and offer fair prices and coupons!
They came on time and got it done very efficiently in a couple of hours
Out of curiosity, after making my appointment, I asked Bob how long I’ve been a customer of L.A. McMahon, since I knew it had been quite awhile. I was surprised to learn it was 25 years! Wow!! I thought that definitely deserved a great review. McMahon is what ALL service companies should be… easy to make…
We’ve been using McMahon window washing for over 14 years and they always do an excellent job. They are always respectful of our home and furnishings. They always clean up their work area, and our windows look fantastic when they finish. I highly recommend them for your home or business. They are true professionals.
They did a great job! The window washers were friendly and very professional! They even wore booties while working in the house. Windows look great!
I have been using L.A. McMahon Window Washing for 10 + years now and they have done a great job year after year. Highly recommend them!!
They were responsive to my inquiry. Folx were flexible, easy to work with, arrived on time, and did a great job. We had windows washed and a deck cleaned.
We have used LA McMahon for over 10 years. They always do a great job. Their customer service is always professional, welcoming & easy to work with. We’ve had nothing but positive experiences with their crew. Highly recommend them for interior & exterior window cleaning.
I have used L.A. McMahon for interior and exterior window washing for several years. They do a great job, work quickly, and charge a reasonable price. I have always been satisfied with their service and just booked my next cleaning today!
Great service and extremely professional! My windows look great and I highly recommend.
I had a great experience with this window washing company today. They were on time, professional, and extremely thorough. The team paid attention to detail and left every window spotless—honestly better than I expected. They were also respectful of my home and worked efficiently without cutting corners. It’s not…
I was very impressed by the communication to schedule both gutter cleaning and window cleaning... AND they offer to clean window tracks (yes!) and window screens (yes!). All work is detailed in the invoice, so you know what you are paying for (like french windows and doors). I love that! The workers were thorough and efficient, the windows shine!
L.A. McMahon Was very responsive when scheduling an appointment and they did a great job with the window washing.
Great service! Very professional and attentive. Office staff followed through quickly.
Amazing work! Very professional! Highly recommended!
Have been using this company for about 15 years now. Not a single even remotely negative to say. They finished windows inside and out and screens on my two story house in less than an hour. Cannot recommend them enough.
We are a longtime customer of LA McMahon because they always do a beautiful job washing our windows! We’ve used their services for years in our last three homes. Excellent service, friendly employees (not contractors) and a very fair price! We would recommend them to anyone.
L.A. McMahon always does an amazing job on our windows and gutters!
We have been using this service for several years. They came out to do our many windows. Manny was very helpful & made sure we were happy with the windows. He does an excellent job & goes the extra mile to get the windows clean! So happy to look out at the sunset & sunrise! Thank you Mark for sending Manny our way.
Nice to have a quality company you can trust to take care of tough work each year you need them.
We've been using L.A. McMahon for several years. They do a great job leaving my windows sparkling inside and out. And they are fast!
I have used LA McMahon for our windows for maybe, oh, 15 years and can't imagine using anyone else. They come twice a year and I always say it's my favorite 2 days of the year! I am very particular about windows, and I trust Alphonso and his crew 100% to both do a great job and take great care of the windows,…
We’ve been using McMahon for years. The team is in and out before you know it and there has never been any sort of mess for me to clean up. That and a great price keep me coming back.
I selected this company based on their responsiveness and fair pricing with no hidden fees plus number of years in business. Also the owner and staff are friendly and work easily with customers to schedule. They check in promptly with me each year to help me remember to schedule.
I have been using LA McMahon for years. Truly excellent service from start to finish! They improve every year… would never use any one else for my windows.
We have used L.A. McMahon for many years. The are always on time, very professional, and leave our windows sparkling clean!
Great experience with McMahon. Quote and scheduling was quick and easy; the team showed up on time and were professional, courteous and excellent at their craft. Results are gorgeous and the work was completed incredibly fast.
David did an excellent job efficiently washing our windows - they are sparkling! Great communication and service.
We have been happily using LA McMahon Window Washing annually for our home for over a decade. They are reliable and professional, and anytime anyone in our neighborhood asks for a window washer referral, I always say LA McMahon!
L.A. McMahon is our go to for yearly gutter cleaning. We also have used them for window and screen cleaning. Their prices are fair and their crew always does a fantastic job. I highly recommend L.A. McMahon.
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Price
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Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Jobs customers hired them for
| Job | Reviews | Category typical |
|---|---|---|
| Interior & exterior window cleaning | 292 | $176–$421 |
| Window washing | 179 | — |
| Gutter cleaning | 133 | — |
| Rooftop/skylight cleaning | 36 | — |
| Power/pressure washing | 27 | — |
| Glass & mirror cleaning | 13 | — |
