How much does cleaning solar panels improve their output?…read more I had my solar panels cleaned recently by @sudandsqueegie. I had them cleaned only a few months earlier by another company, but I recleaned them because two panels were producing lower output and looked obviously dirty. The other panels did not look like they needed cleaning. I was surprised to see that the cleaning improved the output of all the panels from an average of about 340 Wh per panel to about 540 Wh, an increase of about 58%! The first picture is a drone shot of the panels, showing the two panels that were obviously dirty. The first panel picture shows the output of all panels before cleaning, and the second panel picture shows the output after cleaning. The panel output measurements were taken within 1 hour of each other at around 1 pm. It was a partially overcast day, so the output is usually much greater. However, it shows the amount of improvement possible with simple cleaning of the panels, despite them not appearing obviously dirty to the naked eye. It turns out the two panels that looked obviously dirty had cracks in the glass surface, and most of the discoloration was dirt that had seeped underneath the glass coating and could not be removed by cleaning. Surprisingly, not only did the surface cleaning of the two "dirty panels" improve, but it also improved the other panels that did not look like they needed cleaning! The original company that did the cleaning used a brush on a long pole to drip deionized water onto the panels. @sudandsqueegee used a long pole with two rotating brushes, which seemed to be more effective. They were very efficient and professional in their work. I recommend them highly.

Hired Sud & Squeegee to power wash our roof and clean our solar panels. I was really happy with…read morethe results. Before and after pics showed how dirty my roof tiles were. They were on time, professional and courteous. Definitely recommend!

I wish I could give this company 20 stars! First, the job they did was exceptional on my very…read moredifficult to clean French pane windows. Second, they came to my rescue when another window company did a horrible job on my windows. The customer service and quality of their work is exceptional. Alex, the technician who was here, was polite and so good at what he does. I cannot recommend this company enough!

I finally decided to get my windows washed and am so happy I found Clear San Diego Window Washing…read more I reached out to them and got an immediate response from the owner, Al. Al provided an estimate and was able to do the work at my house the next day. Al was on time and he washed my windows, screens and railings the good old fashioned way ... by hand! LOVE that!! Al's prices were super reasonable and his work was top notch (he takes pride in his work). Support your veterans and first responders and call Clear San Diego Window Washing. They are now my "go to" when I want clean windows and I'm sure they will become yours too. Thanks Al!!

The service was great and the quality of work was excellent. Daniel was professional and courteous.read more

Thanks to Daniel from Elbow Grease Window Cleaning (760-277-9888) my home now looks brand new…read moreagain. He power washed my 2 story townhome cleaning off all the dirt and what not, cleaned all windows inside and out which included cleaning the tracks. The windows are spotless and streak free. Beautiful! Overall Great experience, have recommended them to the rest of my community. Thank you Daniel!

As always Jeff did another stellar window cleaning job on all our windows (23). Being the true…read moreprofessional, he arrived 5 minutes early, brought all his own equipment & was in & out in no time. He prices are very fair. I've referred many friends & family members. Never disappointed in his work.

Great communication leading up to the visit. Jeff was very professional. We had a dog and he was…read morevery friendly with our dog. Our windows never looked so clean. Like new again. Price to do all the windows was reasonable. We will have him back for sure.

What a fantastic experience and I highly recommend this company for anyone wants good quality work…read morecoupled with superb customer service. I called early in the morning and spoke to Stephen regarding getting Christmas lights installed. It was my lucky day as their appointment cancelled which opened a spot for me. Stephen and 2 others arrived at my home and were professional, friendly, and efficient. They went above and beyond. Overall this experience exceeded my expectations and I will certainly use this company in the future for any of their many services they offer, and I highly recommend you do as well. Thank you!!

Kennedy Brothers does a fantastic job cleaning your windows and solar panels! They showed up…read morepromptly, but I had double scheduled with another home-improvement company that had just arrived at the same time. Kennedy brothers said hey no problem we'll reschedule. No big deal. They came back a few days later when the area was clear and did a fantastic job. I really appreciated their flexibility. Thanks guys!

Joey set up another window cleaning job for me at my home and Sean arrived precisely on time and in…read morean exceptionally good job on all of our windows. He was professional, courteous, friendly, and did high quality work. I will continue to work with this great company. 5 stars all the way !

Excellent company very detailed and service was excellent would recommend to anyone very reasonableread more

Luke and Anthony were great. Very professional and thorough. Even charged us less than initial…read morequote because of less square footage. Will definitely use them again.

Luke did a great job. He uses new technology, water that doesnt leave spots and he was ready to add…read morework .. i had him originally schedules only for the fence and he was able to do add the house. I highly recommend him.

We used Superior cleaning services for our windows. They did an excellent job, we are very happy…read morewith their work and I highly recommend them. We have scheduled them to come back to do our solar panels as well.

I received multiple recommendations from my neighbors for his services and am glad it was done…read moresparkling clean. Highly recommended!!