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.

The team that came out and did my parents windows was extremely professional and did a fabulous…read morejob. Communications with Jordan was great, he kept me up-to-date with the team and when to expect them. The price was fair and the quality of work was outstanding. I highly recommend this company for all your window cleaning needs.

I was so pleased with Matthew's services and so happy to have clean windows again! Matthew worked…read morevery diligently and methodically in cleaning all of my windows and solar panels. I highly recommend Brilliant Window Cleaning and will definitely be using them again!

Great service, on time, guys started on the outside of home as I was running late and we added…read moresolar panels which was super convenient. Took about 3 hours to do 35 windows and 14 panels.

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!

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!

We had Clearvu clean windows, solar panels, pressure wash the house and patio concrete. Very…read moreresponsive, highly communicative. Everything was done as requested and quickly. It was expensive but since this was the first time I have done this, I did not know what it should cost.

Robert did a meticulous job of cleaning windows screens and tracs very neat left nothing undoneread more

They did an excellent job for a reasonable price. We have a 20 foot glass atrium and he did a…read morestellar job making it sparkle.

I used Shine Bright San Diego to clean my paving stone patio, getting rid of in-ground dirt,…read morediscoloration, weeds etc. I was serviced by Brooks, a very friendly and engaging gentleman. Here are the pluses and minuses of my experience. Pluses: * Rapid and courteous response to my initial request * Quick turnaround for an appointment * Quoted me a 2 hr arrival window, which they met. * Affordable service. * Patio is nice and clean and he cleaned splashes from the adjacent windows/ doors. Minuses: * I had told them about my pool right next to the patio, but Brooks didn't take any special attention to prevent some dirt and sand from entering the pool (e.g, putting down plastic film). Nor did they provide a method for cleaning it afterwards, which led to clogging the pump intake line, requiring a lot of effort on my part to clear. * On the patio itself, I needed to use a blower to remove residual stuff that the power wash didn't deal with. Ideally, they would have done that as part of the service. I would give them 3.5 stars if that was an option: I feel 3 is too harsh. 4 is probably a bit generous given what I needed to do afterwards. So, be wary if you have a pool nearby that they offer you a solution to prevent crap getting in it.

Matt did an incredible job on our windows today. He was professional, respectful of our property,…read moreand paid attention to the details--even cleaning the tracks and screens. The pricing was fair and the results speak for themselves. 10/10!

Richard came out and cleaned about 30 windows, in and out, in about 2 hours…read more Excellent work and pricing. Highly recommend.

First time service Very happy with this service and will…read moredefinitely use next year. On time, clean, friendly. And windows look awesome. We had the screens and tracks cleaned and it was worth it.

Great customer service and care. Professional and insured. Highly recommend, and my go to for…read moresolar panel cleaning and window washing.

I found Clear San Diego through my own research online, and I am so glad I went with them. Al and…read moreJoseph did a very thorough, pristine cleaning, with attention to detail. I didn't realize how dirty my windows were until I saw how clean they became. What a difference. It was a pleasure to work with Al and his team. I appreciated their timeliness, integrity, and work ethic. Highly 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!