Frequently Asked Questions

  • How does cleaning my solar panel improve my solar output?

    Our clients have reported an increase of 20% to even 60% solar output. The diffence will be consistency. 

  • What causes hard water stains on windows in Hawaii?

    Mauka Po Makai, Hawaii has some of the hardest water statewide. Due to sprinklers, humidity, salt air, and imputries in our tap water. Oahu specifically has a higher TDS than most of our neighbor islands.

  • How often should you clean your solar panels?

    Most solar panels benefit from cleaning every 3–6 months due to volcanic dust, salt air, and bird droppings that reduce efficiency. Panels near agriculture or coastlines may need more frequent service. At HI Vis Window Cleaning, we recommend scheduling based on your specific Oahu location and environmental exposure.

  • What's the benefit of water-repellent coating on windows?

    Water-repellent coatings cause rain and moisture to bead and roll off glass, reducing water spots and dirt accumulation. This treatment improves visibility during Hawaii's frequent rain showers and extends time between professional cleanings. It's especially effective for ocean-facing properties dealing with salt spray.

  • Can dirty window tracks affect window functionality?

    Yes, debris buildup in window tracks prevents smooth opening and closing, and can damage rollers or seals over time. Hawaii's volcanic dust and moisture create sticky accumulations that trap dirt. Thorough track cleaning restores easy operation and prevents costly repairs.

  • What's the difference between interior and exterior window cleaning?

    Exterior cleaning removes environmental buildup like salt, dirt, and bird droppings, while interior cleaning addresses fingerprints, dust, and indoor pollutants. Both use different techniques and solutions. At HI Vis Window Cleaning, we provide streak-free results for both surfaces to maximize clarity and curb appeal.

  • How does screen cleaning improve airflow in your home?

    Dirt, pollen, and salt spray clog screen mesh, reducing ventilation by up to 30%. Professional cleaning removes these obstructions, allowing trade winds to flow freely and improving indoor air quality. Clean screens also enhance visibility and extend screen lifespan in Hawaii's humid climate.

  • Why do window frames corrode faster in Hawaii?

    Salt air and high humidity accelerate corrosion on aluminum frames and cause mold growth on wooden frames. Regular cleaning with eco-friendly solutions removes salt deposits and organic buildup before permanent damage occurs. Frame maintenance is essential for properties throughout Oahu's coastal and inland areas.

  • Does hard water treatment prevent permanent glass damage?

    Yes, untreated hard water stains can etch glass permanently through chemical bonding with silica. Professional treatment removes existing mineral deposits and applies protective measures to prevent recurrence. Early intervention is crucial, especially in Wahiawa where irrigation and mineral-rich water are common.

  • What affects the cost of commercial window cleaning?

    Building height, window quantity, accessibility, and cleaning frequency are primary cost factors. Specialized equipment for multi-story buildings and safety requirements for government facilities also impact pricing. At HI Vis Window Cleaning, we assess each commercial property's unique needs for accurate service planning.

  • What is TDS? And why do I want to know what my home TDS measurement is?

    TDS will measure the imprections in your water. The higher your TDS number is the more likely your home windows are to build hard water.