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!

Our experience with Wonder Windows was end-to-end perfection. I called to schedule, the owner…read morecalled me back the same day. On the day of the window cleaning the owner texted that he was on his way. Upon arrival Jeremy got right down to business, starting with the outside of the house while I moved objects on the inside so he could get to the windows easily. We have about 35 windows, plus two sliding glass doors in our two story house. The job was finished in about 3 1/2 hours, the timeframe mentioned upfront. The windows, screens and window tracks are spotless. He even cleaned the little windows on the garage doors. Spotless clean-up; after the work was done there was no evidence he was even here! I'm a believer in using small businesses when possible and Jeremy exemplifies the quality, professionalism and caring desired. Great work, I highly recommend Wonder Windows for your cleaning needs!

Our two story home windows and screens hadn't been cleaned in years so we thought it would be a big…read morejob for Jeremy. He fit us into his schedule and was at our home within days. I actually think it was his day off and he was moving at the time! Jeremy is very professional and his process was quiet and tidy. No running water, splashing or mess that I had anticipated. Within hours, our windows sparkled and the screens were so clean, it looked as if they weren't even there! Jeremy's bill was exactly as he'd estimated over the phone and I couldn't be happier with our choice. His name and number are now in my phone for future window cleaning and knowing his work ethic, I won't wait to schedule. I highly recommend Jeremy of Wonder Window & Cleaning!

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!

I have a huge glass wall on my golf course view. The birds love to '…read more"decorate " it. Elbow Greese Window Washers make it sparkle and shine! They also do my home, the screens, all done carefully and professionally.

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

I've had my windows serviced before but this was the best experience. Tommy was very responsive and…read moreit was easy to schedule an appointment. Joshua arrived on time and communicated everything in advance to ensure I could make informed decisions. He really took the time to clean the windows inside and out and he addressed every issue with professionalism and care! The windows are cleaner and sparkling like never before! Joshua did an amazing job. I was pleased with his work and attention to detail. He is the best!

Last week I received several quotes for Solar panel/gutter/house/hardscape power-washed & window…read morecleaning in & out. Tommy quickly reached out and gave me a fair price and gave me the option of 3 different days. He was very communicative and has been in business for quite some time. His team showed up on time and Matt his lead introduced his team to us. Informed us the scope of the work for the day and kept us up to date throughout the process. I would highly recommend this professional team to anyone out there. Thank you

We live in a two-story condo/townhome and had our windows (inside and out), tracks, window screens,…read moreand our solar panels cleaned. These guys worked efficiently and did a fantastic job. Very reasonably priced as well. We'll definitely keep using In-U-Window in the future and highly recommended them.

Friendly and professional. We've used their services for years! Always punctual and they do a great…read morejob.

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!