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    GS Window washing

    4.9 (56 reviews)
    Closed 8:00 am - 1:00 pm
    Updated 2 months ago

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    Response time

    20 minutes

    Response rate

    100%

    Services - GS Window washing

    Gutter addition

    Gutter cleaning

    Gutter installation

    6 More Services

    Gutter repair

    Gutter replacement

    Solar panel cleaning

    Rooftop solar panel cleaning

    Window pressure washing

    Window cleaning

    GS Window washing Photos

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    Recommended Reviews - GS Window washing

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    Reviews With Photos

    Bruce F.

    One year after first wash, he was hired again and did another great job. I asked Efrain to also remove two satellite dishes from roof. He did a great job removing satellite dishes too. I recommend Efrain as a handyman too.

    Before and after of Solar Panels. I can see an increase in solar production since the cleaning!
    Rita P.

    Long overdue review! I was so distracted by my clean windows, solar panels and gutters that I forgot to post this review! Efrain was great to work with. He did a great job on my windows for a reasonable price. I called him back to clean my solar panels and gutters. I'll call him again!

    Zulma M.

    Efraín was responsive, professional, and delivered a great service! After he washed/cleaned all of our windows he went to my neighbors house to do the same. They were just as pleased! I'll likely call on him for other work around the house.

    An example of how clean one of my windows is after Efrain cleaned it.
    Mike A.

    Efrain did an excellent job cleaning all of the windows in my home - outside and inside. In addition to his detailed skills and expertise, he was diligent and respectful. I am confident we will be hiring him again in the future.

    Before and after cleaning.

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    1 year ago

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    6 months ago

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    3 months ago

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    1 year ago

    Friendly service, reasonable prices, efficient work! Our gutters were difficult to clean, but they're functioning well now.

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    11 months ago

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    2 years ago

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    1 year ago

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    2 years ago

    Efrim did the best job ever! My windows have never looked so good! He scraped off the hard water markings after years of buildup!

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    2 years ago

    Great, prompt and good price. GS communicated date available and was there on time to do work.

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    2 years ago

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    4 years ago

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    6 years ago

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    6 years ago

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    2 years ago

    Efrain helped us cleaned gutter. Great service, arrived on time. Also cleanup the dirt afterwards.

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    4 years ago

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    3 years ago

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    7 years ago

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    6 years ago

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    7 years ago

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    5 years ago

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    6 years ago

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    6 years ago

    On time and very polite . He took before and after pictures which were great. Very responsive !

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    7 years ago

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    7 years ago

    Let me change the date was polite super hard working no complaining. Seemed like a nice trust worthy guy and my windows look a

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    4 years ago

    Very satisfied and impressed with the service provided, great work. Windows are sparkling clean! I highly recommend Efrain.

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    4 years ago

    Efrain came on time and did the good job cleaning my solar panel and set up guards. Really appreciate his help!! Highly recommend!!

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    7 years ago

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    7 years ago

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    7 years ago

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    6 years ago

    Great service: confirmed appointment the night before, arrived punctually and work was fast and clean! Highly recommend!

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    7 years ago

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    Page 1 of 2

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    Review Highlights - GS Window washing

    Efrain did a great job at a reasonable price and I'll definitely give him a call again soon.

    Mentioned in 39 reviews

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    You might also consider

    AMERICA'S Solar Cleaners

    AMERICA'S Solar Cleaners

    4.9
    (103 reviews)

    Easy to schedule, good communication, and did a nice job cleaning my solar panels. Will be calling…read morethem back next time! Thank you!

    I requested a quote three weeks ago, and specified that my HOA requires a certificate of insurance…read morebefore I could get approval for my solar panels to be cleaned. I explicitly mentioned that if this was a problem, I would not be offended if they passed on my request. I received a quote the next day (Sat) saying the COI would not be a problem. On Monday, I received another message asking to schedule the service before the COI. I was told I would have the COI shortly. Two weeks later and no COI, I remind the person who reached out to me via e-mail. I'm told I will have the COI in a day or so. I was also told my request for a COI was pushed back to accommodate work for a large company who shall remain nameless in this review. It's now three weeks since my original quote, and no COI, hence no solar panel cleaning. I'm done. If they didn't want my business - and as I said, no offense taken if that was the case - I would have appreciated not having my time wasted from the start. My panels could have been cleaned by now if I selected another company. Encourage others to go elsewhere. Update after the owner's response: I appreciate Rosalie's comments below, but I'd also like to add my own "if you are reading this" clarification to Rosalie's misrepresentation below where I am being blamed for saying "no rush." I did in fact mention that I was in "no hurry" to get the job done at the start. I own this. This was done as a courtesy, and I assure you I will never make that mistake again thanks to America's Solar. However, Rosalie's husband, John, did not get back to me after two weeks from the initial inquiry. Two weeks. I had to reach out to get an update. Then, John said he "should be able to get me the COI in the next day" (slightly paraphrased from a typo in his original message.) He did not reach out with an update if he had encountered any further delays. After four more days, I realized I wasn't a priority and my panels weren't getting cleaned by them ever. "I'm no rush" doesn't mean "Walk all over me," Rosalie. It's a courtesy to let you (or your husband) set the timeline and meet it! it doesn't get much easier than that, and you somehow fail to grasp that. It was *never* mentioned that insurance was being renewed. Much to the contrary, the reason for the delay was **explicitly** explained as "finishing a big job for Company X", where the highly recognizable company name was spelled out to me. If you are reading this and a business owner, think of whether or not you want John mentioning your company name as a client to others. I wonder how Company X would feel if they found out their name was being thrown around freely. Most large organizations make their vendors sign nondisclosure agreements. I've also had to get COI's for my start-up employer in the past, and we were on the bottom of the totem pole at our insurance agent. I've also had to get multiple at the same time. It's never taken me no longer than 72 business hours. Go ahead, blame the customer again, Rosalie.

    Clean Solar

    Clean Solar

    4.7
    (477 reviews)

    This is my second time around with Clean Solar, and they are just as stellar as the first time, if…read morenot better and more efficient. We needed to add panels because we purchase an EV and needed more solar to offset PG&E. The impeccable experience started with Art the consultant, he gave 4 scenarios and explained in detail what each means and provided detail report including all the tech details and break even timing. To be honest, it was too much for me, I really just wanted pricing and how long it takes to install haha but was good to know he has such knowledge and I was confident he is looking out for my best interest. Then we had Patrick the PM, arrived for site inspection on time and courteous and explained the whole process. Then come the impressive installation team Luis, Alberto and Kevin. The 3 arrived on time and with smiles, just overall a great vibe from them. Luis walked me through the installation plan and gave a few choices taking into consideration aesthetics of the house and then got to work. 4 hours later, clean line, fine craftsmanship and symmetrical matching placement from last system is in place and ready to tangle with PG&E (attaching some photos) I really really can't recommend any higher to go with Clean Solar on your solar projects. Seamless is what you'll experience with them. Until next time Clean Solar!

    **Update: Carl contacted us to apologize for the few negative experiences and they will definitely…read moretake our feedback seriously and will address and improve these issues. Btw I was going to bump this review to a 4 but working with Nick we decided on 5.** We had a complicated full house renovation this year and signed with Clean Solar for either the Tesla tiles or solar panels and we ended up choosing solar panels + Tesla power walls. I want to give special thanks (and the only reason why I didn't give a 0 star) and appreciation to the members listed as they deserved beyond 5 stars Bill, Nick, Jeremy, Rodger, Louis, Kevin, Albert, Alberto, Carl (CEO). Bill was amazing and helpful in explaining the process and helping us secure the initial funding. You are probably wondering why I am giving this solar company a 3 star. Well it takes 1 bad apple to ruin a team and this is the case. A three day project ended up taking 3+ weeks & we understand that the workload is extremely busy this time of year. However when 1 person is acting unprofessional, crossing the line, asking homeowners to borrow a usb cable to charge their cell phone, super loud, tries to impress (why), doesn't listen to clients (would walk away in mid conversation), act as if he is the owner of the company, talks way too much (not in a good way), talking about his side hustle business, a bit juvenile, not completing and complaining about the job in front of clients plus not showing up when he said he would to complete the job, leaving tools at the site and asking the homeowners to put it in their garage until he returns to pick it up, calls in sick last minute leaving the load to other team members plus more well then this becomes a problem and 0 stars (if possible) especially the amount of money you invest into this project. We also requested that this person not show up again but they kept sending him back. At the end of the project half of the Tesla walls were connected and working but the other half wasn't connecting. At one point our bedrooms electricity didn't work, it wasn't the breakers and Nick was awesome enough to take our after hours call and help us manually override those other 2 disconnected wall panels. The dream team (Nick, Kevin and Albert) resolved the connection and all is working now. Also, Nick stayed late to make sure our Tesla walls were configured and updated properly. Plus , a shout out to Jeremy for staying late as well to help fix a broken issue. Feedback: Organize a team that works well together to effectively complete the project. Provide sexual harassment training (this is excluding people listed here). If a female client doesn't feel comfortable with a person don't resend them back. Also if a homeowner (regardless of being the wife) calls and leaves a message please out of courtesy call back after all I am the client, work and pay the bills too (even though this is my husband's project).

    Highlight Solar

    Highlight Solar

    4.8
    (247 reviews)

    We have had an Enphase solar installation for 10 years now, which has always worked beautifully…read more However, due to regular PG&E outages in our area (Fremont, CA), we decided to add a backup battery to the system. After careful research, we chose Highlight Solar (HS) to handle this installation. We chose the Franklin battery, and Highlight Solar came out to handle the installation in Nov 2025. Sadly, we had some serious issues with the functionality of our solar infrastructure, after the Franklin equipment was installed... the Enphase solar monitoring device (called Envoy) started having trouble communicating with the panels, and therefore would disable them. HS made a couple of different attempts to fix this issue (which was delayed when they went on vacation for a month), so I had to keep cycling the breaker for the panels every morning to get the system working for another day. Fortunately, they were persistent in pursuing the issue, and after returning from vacation in late January, Samir came out and spent a couple of hours on the phone with Enphase support, who suggested a possible solution for this issue. HS then had someone come out to implement Enphase's suggestion, and now my system is working solidly and reliably (Feb 2026). I'm glad HS didn't just give up on us; I'm sure they were just as frustrated as we were by this situation. We certainly didn't expect this to take three months to resolve, but it is working now.

    We met with multiple solar companies and settled on Highlight due to both the great recommendations…read moreas well as our experience during the initial process. We asked a LOT of questions, then we asked more, and then some more. Ali, our salesman, remained patient and communicated thoroughly via email or phone, and at all hours even after we had signed the paperwork. The installation process was honestly better than the sales process. The combination of Chris (the foreman who found a solution for all our requests) and his team which worked in awful weather to get our project installed on schedule were amazing. Our inspection, and final handoff were handled by Samir, who answered even more questions, and made sure we were fully set up. From end to end we had a great experience with Highlight Solar and will recommend them as they were to us. Pro tips: If you get a battery you will need to store it until it is installed. Your solar data might not show up on the app for 24-48 hours after installation...don't panic, it will show up eventually and you will see the money you are not spending with PG&E.

    Supreme Power Wash

    Supreme Power Wash

    4.9
    (144 reviews)

    I recently hired Supreme Pressure Washing to clean my property in Berkeley, and I couldn't be more…read moreimpressed with the results. From start to finish, their team was professional, responsive, and detail-oriented. They showed up on time, walked me through the process, and made sure to address all of my concerns before getting started. The transformation was honestly night and day--years of dirt, grime, and buildup were completely removed, and my property looks refreshed and well-maintained again. What really stood out was their attention to detail. They didn't rush the job and made sure every surface was thoroughly cleaned. Pricing was fair for the quality of work delivered, and there were no surprises. I would highly recommend Supreme Pressure Washing to anyone looking for reliable, high-quality service. I'll definitely be using them again.

    I was looking for a company to clean up my oil spill. I was so frantic looking for somebody trying…read moreto get this mess cleaned up. I contacted supreme power wash. I talked to Marco, who made me feel so comfortable right away with the conversation about my dilemma. He was so professional he explained the whole process to me. The price was unbeatable. I'm so happy to have found Marco and his company because they did such an amazing job they showed up on time they did exactly they said what they said they're gonna do overall I'm 1000% happy Jason was on site cleaning up the mess. I greeted him and saw the improvement and I'm very very happy. I will definitely use them again if ever this was to occur. I honestly think you guys so much for just taking all my stress away and making the pavement beautiful again thank you thank you thank you

    Squeegee Pros

    Squeegee Pros

    4.9
    (162 reviews)

    I requested a quote for gutter cleaning and interior/exterior windows in Fremont, which Cesar…read moreprovided within 15 minutes. I decided to go with Squeegee Pros since he did my dad's home in Milpitas 2 years ago and because of his fair pricing. Cesar ran late the day of cleaning because he had to pick up a tool, and he let me know an hour before I expected him. It was no big deal for me since I had other work being done in my home so planned to be home all day. Upon arrival, Cesar confirmed that they would do the gutter cleaning and exterior windows. I asked him to please remove any spider webs around the gutters and windows, which he agreed. He also let me know that another person would be joining him in about an hour. There were 3 total working on my home and it took about 3 hours. They removed the screens and washed them down with the hose. Although they only cleaned the exterior windows, you could tell that they were squeaky clean. I am planning to have them return a second time to do the interior windows after the other work is completed. There was one screen that was falling apart. Cesar took it with him to fix and will bring it back when he returns in a few days. Cesar provided before and after pictures of our gutters. They scooped and bagged all the debris in the gutters, and flushed with water to make sure the downspouts were clear. It actually rained the next day and we saw water flowing consistently out of the street curb drains. Cesar recommended gutter guards for our downspouts to prevent future clogs. I would highly recommend Cesar for his professionalism and fantastic work.

    We had an absolutely fantastic experience with this window cleaning team and couldn't recommend…read morethem more highly. Their attention to detail was incredible--every single window was left crystal clear, completely streak-free, and genuinely sparkling. They even took the extra step to clean all the screens, which made a noticeable difference. They also spotted paint drops left behind from a previous exterior paint job and took care of it. They were able to accommodate my request for spider web removal and handled it flawlessly using specialized tools. What really stood out was their honesty and professionalism. Since our home is relatively new, they were upfront about what was actually needed and didn't try to upsell anything unnecessary. It's clear they train their staff extremely well - everyone was skilled, efficient and personable. If you're looking for thorough, trustworthy, and high-quality window cleaning, this is the team to call. At the end, they briefly mentioned (after being asked) that they may be starting a car wash arm of their business; we will likely also be their car wash customer soon!

    GS Window washing - windowwashing - Updated June 2026

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