Los Altos Commercial Solar Panel Cleaning
Recover lost production across large arrays, carports, and rooftop systems.
"We manage several properties in Los Altos and AG has been reliable on every one. They work after hours and always send photos so we know the job was done right."
Verified Google Review
AG Windows and Gutters cleans commercial solar arrays for warehouses, office buildings, schools, agricultural sites, apartment communities, and solar carports across Los Altos and the South Bay. We use deionized water and soft-bristle brushes that protect panel warranties while restoring output lost to dust, pollen, and bird droppings.
Soiling Is a Line Item on Your Energy Bill
Commercial arrays sit still for years while dust, pollen, agricultural drift, and bird droppings build a haze across the glass. Soiling losses of 10–25% are common in the South Bay, and on a large system that is thousands of dollars of production each year. Cleaning is one of the few maintenance items that pays for itself directly.
We clean with deionized water and soft brushes, never detergents or high-pressure spray that can compromise seals and void manufacturer warranties. Crews are trained on rooftop fall protection and never walk on panels.
Systems We Service
Flat-roof commercial arrays, pitched rooftop systems, ground mounts, solar carports, and multifamily rooftop installations. We coordinate with facility managers and O&M providers on access and shutdown requirements.
What's Included
- Deionized-water rinse across the full array
- Soft-bristle brushing for bonded soiling and droppings
- Inspection for cracked glass, hot spots, and loose mounts
- Removal of debris from racking and roof surface
- Photo documentation of the array before and after
- Scheduled recurring cleanings tied to your production data
How It Works
Free Walkthrough & Quote
Send us the property details or schedule a quick walkthrough. Most quotes go out within one business day.
Scheduling Around Your Hours
Early morning, evening, and weekend service available so we never disrupt tenants, staff, or customers.
Insured, Uniformed Crews
Fully licensed and insured. Certificates of insurance and W-9s available on request for every property.
Photo Documentation
Every visit ends with before-and-after photos and notes so property managers have a paper trail.
Fully Insured · Background-Checked Crews
Certificates of insurance and W-9s available on request for every property.
Commercial Solar Panel Cleaning FAQs
The questions Los Altos property managers ask us most.
Other Commercial Services
Commercial Solar Panel Cleaning in Other South Bay Cities
Loved by San Jose Homeowners
Don't just take our word for it, see what our customers have to say.
Fatima Sanchez Jeronimo
"They did an amazing job on my gutters and solar panels, they really cared about the quality of their work and didn't rush through anything. My windows were left spotless and they also took the time to clean up afterward, which I really appreciated. It's hard to find companies that are reliable, honest, and take pride in what they do, but this team checked all the boxes. I would absolutely recommend them and will be using them again in the future."
Megumi Masuda
"I had tough hard water stain on the windows. Adrian did great job removing it. It feels good to have clear windows. He is an impressive young entrepreneur."
Aileen Liu
"I hired AG Windows to clean the windows for my 2-story house in Fremont, and they did an absolutely phenomenal job! I had 13 windows and 2 large sliding doors that desperately needed deep cleaning. Not only is the glass crystal clear now, but they also deep cleaned all the screens and tracks/sills, leaving them completely dust and dirt-free. For a 2-story house, their pricing was very reasonable and competitive. Will definitely use them again!"
Shang Wu
"We're very satisfied with their gutter work, they did a great job. We'll call them for service again."
Carol Forte
"Adrian and his team did a fantastic job cleaning our numerous windows and awnings. This was my first time using AG and the whole experience beginning to end was great! Adrian is professional and communicated perfectly, arriving on time and leaving everything neat. I have a new favorite window washing company and will call them again. Thanks guys!"
Michael Herscovitch
"AG Windows and Gutters cleaned all of my windows and solar panels today. They were on time, communicated well and did an excellent job. Their price was very fair for all of the work they did. They cleaned all windows and screens and left my house looking great. I would recommend them to anyone and I will be using them again in the future. Thanks Adrian."
Trong Bui
"Great service and very professional! They did an amazing job cleaning our house. Arrived on time, explained the process clearly, and completed the job efficiently. Highly recommend!"
Ciriaco Garcia
"My windows have never been this clean, they made sure every window was spotless. Thanks Adrian and AG windows and gutters."
Lynn Woodford
"AG Windows & Gutters did a fantastic job cleaning my windows. They were professional, on time and did a thorough job reaching some hard to access windows. I will definitely hire them to clean the windows when needed and call them to clean the gutters too. Great job guys!"
John Pipitone
"Adrian of AG windows came to clean my windows and he was AWESOME! Climbed up on my 2 story roof like it was no big deal, cleaned the windows, the screens and the solar panels. He also went up there with a blower and got all of the stuff the trees have dumped on the roof off of there. He has my highest recommendation and I will be having him do the windows and the solar panels from now on!!"
Jennifer Jewell
"They were reasonable, professional and did a great job!! Highly recommend!!!"
Beth Avalos
"This was a very fair price and the two young men that came out to do the work were very polite and professional. The communication from the time I first scheduled was great, and I was able to get rescheduled in just two days. My windows are beautiful. They have not been this clean in years. I will definitely use them again."
Corina Arias
"I'm really impressed with the quality of work from AG windows and gutters. Everything looks crystal clear and streak free. They were friendly, efficient, and took great care while working around my home. I'd happily hire them again and recommend them to others!"
Fifty Shades of Chestpains
"Fantastic! They were very professional. We live in a 100 year old home with original windows, so you have to be delicate. They were careful and did spectacular job. The windows are shiny and glassy, back to their original glory."
Fatima Sanchez Jeronimo
"They did an amazing job on my gutters and solar panels, they really cared about the quality of their work and didn't rush through anything. My windows were left spotless and they also took the time to clean up afterward, which I really appreciated. It's hard to find companies that are reliable, honest, and take pride in what they do, but this team checked all the boxes. I would absolutely recommend them and will be using them again in the future."
Megumi Masuda
"I had tough hard water stain on the windows. Adrian did great job removing it. It feels good to have clear windows. He is an impressive young entrepreneur."
Aileen Liu
"I hired AG Windows to clean the windows for my 2-story house in Fremont, and they did an absolutely phenomenal job! I had 13 windows and 2 large sliding doors that desperately needed deep cleaning. Not only is the glass crystal clear now, but they also deep cleaned all the screens and tracks/sills, leaving them completely dust and dirt-free. For a 2-story house, their pricing was very reasonable and competitive. Will definitely use them again!"
Shang Wu
"We're very satisfied with their gutter work, they did a great job. We'll call them for service again."
Carol Forte
"Adrian and his team did a fantastic job cleaning our numerous windows and awnings. This was my first time using AG and the whole experience beginning to end was great! Adrian is professional and communicated perfectly, arriving on time and leaving everything neat. I have a new favorite window washing company and will call them again. Thanks guys!"
Michael Herscovitch
"AG Windows and Gutters cleaned all of my windows and solar panels today. They were on time, communicated well and did an excellent job. Their price was very fair for all of the work they did. They cleaned all windows and screens and left my house looking great. I would recommend them to anyone and I will be using them again in the future. Thanks Adrian."
Trong Bui
"Great service and very professional! They did an amazing job cleaning our house. Arrived on time, explained the process clearly, and completed the job efficiently. Highly recommend!"
Ciriaco Garcia
"My windows have never been this clean, they made sure every window was spotless. Thanks Adrian and AG windows and gutters."
Lynn Woodford
"AG Windows & Gutters did a fantastic job cleaning my windows. They were professional, on time and did a thorough job reaching some hard to access windows. I will definitely hire them to clean the windows when needed and call them to clean the gutters too. Great job guys!"
John Pipitone
"Adrian of AG windows came to clean my windows and he was AWESOME! Climbed up on my 2 story roof like it was no big deal, cleaned the windows, the screens and the solar panels. He also went up there with a blower and got all of the stuff the trees have dumped on the roof off of there. He has my highest recommendation and I will be having him do the windows and the solar panels from now on!!"
Jennifer Jewell
"They were reasonable, professional and did a great job!! Highly recommend!!!"
Beth Avalos
"This was a very fair price and the two young men that came out to do the work were very polite and professional. The communication from the time I first scheduled was great, and I was able to get rescheduled in just two days. My windows are beautiful. They have not been this clean in years. I will definitely use them again."
Corina Arias
"I'm really impressed with the quality of work from AG windows and gutters. Everything looks crystal clear and streak free. They were friendly, efficient, and took great care while working around my home. I'd happily hire them again and recommend them to others!"
Fifty Shades of Chestpains
"Fantastic! They were very professional. We live in a 100 year old home with original windows, so you have to be delicate. They were careful and did spectacular job. The windows are shiny and glassy, back to their original glory."
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