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 technician was on time and did a great job. We were very happy with the service. The technician…read moreseems to know what he was doing, and he didn't waste any time and go right to the job. He cleaned up everything after he was done.

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.

I had my first and second floors outside eaves power washed including the moss/mold on the stucco…read more Joe has special detergents for removing the dirt, stains and mold. It all cleaned up very nice. His pricing is amazing, you will be surprised. Thanks again Joe for the great job!! We will see you again regarding the roof power wash !! Bruce

We hired Joe to clean our windows and solar panels. We appreciated his clear, timely communication,…read more quality workmanship, and competitive pricing.

Great variety of services and they are local and a family managed business. We had them come out…read moreto clean our gutters and they did an outstanding job. They also do solar panel cleaning as well. Fast, on time, quality of work and prices are all fabulous. Shaka brah, you live aloha!!!

Thanks a lot! Very professionally done…read more The price is very competitive. Go beyond expectation by cleaning the schrubs, the areas that collect dirts due to the washing. Knowing to prevent potential pitfalls that could have happened from the washing shows great attention to details.

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!

Jeremy is amazing! Excellent communicator and did an amazing job cleaning our windows and screens…read more Highly recommended!

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!!

I didn't even get to have them out. Here is there quote. See below. $500 to clean windows. Just…read moresay we are closed. Horrible.

The absolute best window cleaning company I have ever found. Josh the owner is an absolute…read moreperfectionist and he finished all the windows in my home inside/ outside screens and tracks in 9 hours. The highest of recommendation for his excellent work.

Review Update: After…read moremy initial review, Eric (the sales rep) and Matt (the owner) of Sunline personally reached out to me and was apologetic about the situation. They sent Travis out promptly, who is their electrician where he found that the issue was resolved by replacing a faulty 40-amp breaker that was intermittently providing the necessary voltage, even though measurements initially appear correct. While the breaker issue caused real inconvenience and unexpected costs on my end, the owner was responsive and showed willingness to smooth things over to work toward a resolution. I also want to highlight that the panel upgrade and solar/battery installation itself was clean and well done. The workmanship that Eddie, Manny, Christian and Jamie performed had overall met my expectations, and once the issue was identified, Sunline did step in to correct it. No project is perfect, but how a company responds when problems arise matters a lot. In this case, Sunline's owner and Eric was engaged, responsive, and made a sincere effort to make things right. As an engineer, and after witnessing the symptoms and corrective actions firsthand, I believe the breaker issue was likely a manufacturing defect, and it was unfortunate that it occurred during the holidays. That said, based on how Sunline handled the situation, the overall quality of their work, and the value they offer, I would recommend them and plan to continue using them for future needs.

Made an appointment with Matt to have someone come out and give us an estimate for roof…read morereplacement, was told Carlos would be here Monday morning at 10am and would text right before he got here. No call no show. Contacted him to ask what happened, stated the appointment never went to Carlos, he's sorry. I said okay things happen, what next? Matt stated he has satellite pictures of the house and would send over some estimates......a week later we're still waiting. Decided to go with another company. ps, Nice try. Since you failed to post the follow up email you wrote after I sent that, I'll do it for you...

Scott did a fantastic job cleaning our solar panels and for a reasonable price! He was timely in…read morehis manner and was very kind and friendly. Bonus : he cleaned our skylight :)

We hired Solar Cleaning Now to clean 42 ground mounted panels. They did a great job and panels look…read morenew. Affordable, on-time and even came out on a Sunday!