Solar Panel Cleaning by Johnny Tsunami

Dust, pollen, and moss reduce the efficiency of your solar panels. We safely clean them using soft water and the right techniques.

Why Solar Panel Cleaning Actually Matters

Solar panels only work when they’re exposed to sunlight

A dirty panel loses up to 25% efficiency

    Solar panels only work when they’re exposed to sunlight — and in the Pacific Northwest, moss, pollen, bird droppings, and roof dust can reduce your power output without you even noticing.


    • Erode roofing materials and curl shingles
    • Crack concrete and shift pavers by holding water
    • Make walkways, decks, and stairs dangerously slippery
    • Create a rotting layer on wood fencing, stairs, and trim
    • Lower curb appeal and property value

     

    What's included in our service?

    This isn’t just a surface wash. It’s a full-property moss removal and prevention process, tailored to each surface.

    Crew Icon Soft-Water, Brush-Free Cleaning System

    We use a purified water-fed pole system that cleans panels without pressure, brushes, or abrasive chemicals.

    Brush Icon Streak-Free, Spot-Free Finish

    Because we use mineral-free water, your panels dry crystal clear — no streaks, no spots, no haze.

    Swords Icon Roof-Mounted or Ground-Based System Cleaning

    Whether your system is mounted on your roof, garage, shed, or in your backyard.

    Swords Icon Full Site Clean-Up

    We rinse any overspray, roll up hoses, and leave your roof, driveway, or yard exactly how we found it — but cleaner.

    What's included in our service?

    This isn’t just a surface wash. It’s a full-property moss removal and prevention process, tailored to each surface.

    Crew Icon Soft-Water, Brush-Free Cleaning System

    We use a purified water-fed pole system that cleans panels without pressure, brushes, or abrasive chemicals.

    Brush Icon Streak-Free, Spot-Free Finish

    Because we use mineral-free water, your panels dry crystal clear — no streaks, no spots, no haze.

    Swords Icon Roof-Mounted or Ground-Based System Cleaning

    Whether your system is mounted on your roof, garage, shed, or in your backyard.

    Swords Icon Full Site Clean-Up

    We rinse any overspray, roll up hoses, and leave your roof, driveway, or yard exactly how we found it — but cleaner.

    Our Best Client Reviews

    Johnny Tsunami Testimonials place picture
    4.8
    Based on 1793 reviews
    powered by Google
    Jim & Marilyn DeRoy profile pictureJim & Marilyn DeRoy
    23:47 08 Jun 26
    The windows and solar panels look great. The moss control on the roof seems to be working well.
    Nancy Palmer profile pictureNancy Palmer
    02:15 07 Jun 26
    very professional & did a beautiful job❣️❣️
    Wolfgang Werner profile pictureWolfgang Werner
    22:50 06 Jun 26
    Ty arrived on time and he plus assistant wen right to work. Ty and I walked around the house to ascertain if any obstacles exist or special handling be needed - then off to work. At the end (quicker than I expected, he again walked with me around and pointed out a few problem areas. In general, we were exceedingly satisfied with the company, Ty's professionalism and recommend use of their company.
    R Sowatsky profile pictureR Sowatsky
    23:20 05 Jun 26
    Cris did an excellent job pressure washing 3 of our older decks showing a great deal of dirt mold etc
    Eve Fieldhouse profile pictureEve Fieldhouse
    22:43 05 Jun 26
    Lane Lolagne and Quinton did an OUTSTANDING job cleaning all my windows and skylights, and blowing all the winter buildup of duff from my new Western Red Cedar shake roof! They also cleaned out all my gutters (mud, conifer needles, maple leaves and seed pods), a difficult job considering the 4 Norwegian Maples, old growth Douglass fir trees, and large Western Red Cedar trees on the perimeter of my property. These young men were extremely efficient, competent, very patient and friendly answering my questions. There are other exterior cleaners on the North Olympic Peninsula, but I will ONLY go to Johnny Tsunami for all my roof/ gutter/ window needs. Lane and Quinton, hope to see you next spring!
    Mary Kollar profile pictureMary Kollar
    22:18 05 Jun 26
    Chris is an excellent worker. You are fortunate to have him in your company.
    Amanda Brennan profile pictureAmanda Brennan
    21:53 05 Jun 26
    The initial visit was great and very informative. They let me know that there were payment plans available so I was able to secure the payment plan and schedule my appointment all at the same time. The crew that came out was great . I have a vast garden and they were extremely careful and took care of. I will say there was a lot of debris that came off the roof . They did their best to clean off the deck but I would have loved it to look a bit tidier .
    Overall great job ! I will absolutely hire again.
    Cynthia Ferrucci profile pictureCynthia Ferrucci
    02:13 05 Jun 26
    Dylan and Joseph were professional, efficient and all around fun guys. They did the job well and kept us informed on the progress.
    Laurel Pardee profile pictureLaurel Pardee
    20:57 04 Jun 26
    We had a few issues with scheduling but when the tech showed up he did our solar panels and skylights in the rain and threw in a little extra for us. Definitely worth the wait.
    Jerry Zevenbergen profile pictureJerry Zevenbergen
    22:29 02 Jun 26
    Arrived on time. The roof was completely cleaned, and all the debris was removed from my deck.
    Dana Marinelli profile pictureDana Marinelli
    16:12 02 Jun 26
    If I could give less then one star I would. From scheduling issues, to techs showing up without the proper equipment, to techs showing back up totally out of it, and throwing my gutter debris in my neighbors yard, and leaf blowing it back into my driveway, and yard, to power washing an area that I never wanted powerwashed, to disconnecting my downspouts and leaving, to having to comeback reconnect my downspouts, clean my gutters again, clean back up the leaf debris on my patios. This job was a total disappointment, an absolute disaster, and a waste of my time. What a difference a year made. I would never recommend using this company to anyone.
    Ricardo Sanchez profile pictureRicardo Sanchez
    23:50 01 Jun 26
    Layne, was amazing. Arrived and performed his duties while I was sitting for my grandson. Great job!!!

    Award Winning Service, Year After Year

    It’s time to say goodbye to dirt and moss and hello to a cleaner, brighter home! From roof cleaning, gutter cleaning, and moss removal to pressure washing and window cleaning, we’re here to help home and business owners across the Pacific Northwest.

    Let’s Make Your Home Sparkling Again.

    Real Results, Happy Customers​

    Take a look at some of the homes and businesses we’ve helped with our expert Solar Panel Cleaning Service.

    Why Homeowners Trust Johnny Tsunami

    With thousands of roofs cleaned across the Pacific Northwest, Johnny Tsunami brings trusted expertise, advanced soft wash techniques, and unmatched attention to detail.

    Solar-Specific Training & Tools
    We don’t treat solar like windows or siding. Our tools are designed for panel care and backed by manufacturers.  
    We Handle Full System Layouts
    From rooftop arrays to garage-mounted inverters, we work around conduit, tilt mounts, and sensitive equipment safely.
    We Understand Efficiency
    This isn’t just a cleaning — it’s part of your power system. We know how much performance matters, and we treat it accordingly.​ ​

    Lets Get Started With Easy Step For Get Services

    At Johnny Tsunami, we make it easy for you to get your home looking its best.
    Here’s how our simple process works:

    Get Estimate

    Tell us what you need! Whether it’s roof cleaning, pressure washing, or a full exterior refresh

    Schedule Clean

    Pick a time that works for you, and our team will handle the rest. We arrive on schedule, use top-notch equipment

    Love the Results

    Sit back and enjoy a fresh, spotless exterior!

    Frequently Asked Questions

    No. We never use pressure — only soft, pure water designed to clean without harm.

    Every 6–12 months is typical. More often if you live under trees, near construction, or in high pollen zones.

    Nope! Our methods are safe for active systems.

    Yes — many clients bundle services. We’ll coordinate it to keep your panels clean and your roof protected.

    Frequently Asked Questions

    No. We never use pressure — only soft, pure water designed to clean without harm.

    Every 6–12 months is typical. More often if you live under trees, near construction, or in high pollen zones.

    Nope! Our methods are safe for active systems.

    Yes — many clients bundle services. We’ll coordinate it to keep your panels clean and your roof protected.

    Not Sure What Your Roof Needs?

    We’ll Help You Find Out.

    Not Sure What Your Roof Needs?

    We’ll Help You Find Out.