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.

All windows washed inside and out. Our home is now sparkling with all the light now able to…read morebrighten it up! Uri, our technician, was very professional, courteous, and happy to answer any of my questions. I'm very comfortable and confident to share a recommendation for this company.

Sometimes honesty isn't always the best policy!!…read more I told them my house had just been painted so they charged me extra to scrape off paint overspray. $600 to be exact!!! I assumed they did a good job and tipped the guys well. Then I noticed ALL the paint overspray was still there. And then I remembered that I never saw them use a ladder and I never saw either of them scraping any paint with a razor blade. My honesty did NOT pay off. So I wrote back to them explaining the situation (with some of the pics you see here) and they apologized and set up a "touch up" appointment. That's fine. I mean it's more time that I had to spend waiting for them except....THEY NEVER SHOWED UP! And when I called to ask where they were, they started backtracking. "How many windows are we talking about"? "Did the painters use masking tape?". I'm like "Of course they used masking tape and anyway...WHERE ARE YOU???" So that starts an email thread where they tell me that scraping paint off would take more time and that I would have to pay them more money. I ALREADY PAID YOU MORE MONEY TO SCRAPE THE PAINT OFF!!! $600 to be exact!!! They're now telling me that they didn't realize now much paint needed to be scraped off. Well, look for yourself. Does that look like something they should charge me MORE money for, or something they should have cleaned off in the first place. It's hard to take pictures of stuff on windows but I did my best. Save yourself the HASSLE and use a different company. These people don't know how to run a business, they don't keep their word, they don't show up and they just are not good peeps. EPILOGUE: Well, you can tell from his long, rambling response that he's lying. It's kinda like Walter White in Breaking Bad whenever he tried to lie. He just went on and on. But I know the truth. Had I not told them my house was just painted, I would have gotten the same service for less money. They used my honesty against me and that pisses me off. I'm old enough to remember a slogan that businesses of all kinds used to use. And it's a simple one: "The customer is always right" Not anymore. So what can you do? Fight back. Write an honest review. Demand your money back (In the end, the credit card company sided with me and I got a FULL refund) . Remember YOU have the power. You're not the little guy; You're the customer. And the customer is always right!

Great company to work with and sid a great job. From the request for a quote to scheduling it could…read morenot have been easier. Brooks was great friendly and professional.

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.

Sunline did a great job with our solar and battery installation. Several years later, all is…read moreworking better than expected.

We have used Pressure Washing Pros twice to clean the exterior of our windows. Both times Erik and…read morehis lady crew have done an excellent job. They were professional and respectful of our property. Erik's prices are very reasonable. We highly recommend them. They will do an outstanding job! Doug and Valerie

This company did an incredible job on our smallish backyard patio and was fairly priced. I'd use…read morehim in a minute. Showed up on time, great scheduling, etc. Will bring back in the future.

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.

Coastal Window Pros did an excellent job from start to finish. They responded quickly, came out…read moreright away to measure and order a replacement pane after my son accidentally hit a whiffle ball through our bedroom window. The new glass arrived fast, and they had it installed just a couple of days later. The installation team was professional, friendly, and did great work. I really appreciated how easy they made the whole process. Highly recommend!

Steve and his crew are highly professional and above all provide exemplary service. I have…read moreutilized several of his services and am extremely satisfied and highly recommend this company!

Excellent job accomplished earlier than original schedule. The workers were friendly and courteous…read moreand the owner stopped by to review the work. The roof looks great and I couldn't be happier with both the cost and the result.

Lift and Re-Lay project…read more I obtained three bids for my lift and relay project and after reviewing the bids I did decide to go with Roof Masters to complete the project. The provided the best value and Gilbert, the project manager was able to provide me with an instance quote as he had already pulled the satellite imagery for my house. He was very professional and answered all my initial questions and even provided me with recommendations on underlayment to use, of which he had a sample to provide. During the project the office kept me updated and provided me quickly with answers to my questions. Karen, Briana and the rest of the team were very helpful and highly professional. Huge compliment to Alfredo, my foreman and his team of two workers who did an excellent job in terms of workmanship and overall quality. On top of that Alfredo answered all my questions and was always available to talk to my. As an icing on the cake, I received a call from Rudy, the owner of Roof Masters who called me to check in on the project and see how it was progressing overall and wanted to see if I had any questions or concerns. Additionally he had indicated that he was onsite to make sure the project progressed well. I highly recommend Roof Masters for their outstanding service, professionalism and outstanding workmanship!! Thanks Team Rood Masters!! AAA ++++++

Highly recommend Window Shine. Jose and his wife did a beautiful job on my windows this morning. He…read moreuses deionized water run through his filtration filters in his truck. No need for soap and squeezing. Really took his time and has a lot of pride in his workmanship. Window Shine will be my go to window cleaning company.

Jose and Window Shine did a great job cleaning my windows and solar panels here in San Diego (Bay…read morePark). Everything was filthy from recent construction and landscaping. The cost was slightly more than usual window cleaning, but he used a vacuum and scraper tool to get concrete and splatter paint off the windows where it was visible and was able to clear out the window tracks to make opening and closing easier. Jose was super easy to get a hold of and showed up same day to give me an estimate and was able to do the job same week.