10 Best Headstone Cleaner 2026 in the United States

Southeast Softwash Monu-Mental Cleaner is designed for a variety of surfaces including monuments, tombstones, and sculptures. One of its key strengths is its comprehensive cleaning power, effectively removing algae, lichens, moss, fungus, and mildew. This makes it a great choice for those dealing with heavy organic staining on outdoor stone surfaces.

The product is also formulated to be safe, aiming to protect delicate materials without causing damage, which is particularly valuable for historical or sensitive structures. Additionally, its versatile application means it can be used on various surfaces, from intricate sculptures to large governmental buildings. Users can expect long-lasting results, as it not only cleans but also helps prevent the return of organic growth, keeping surfaces cleaner for longer periods.

It's trusted by professionals in restoration and maintenance, which speaks to its reliability and effectiveness. On the downside, as a liquid product available in a 128 fluid ounce unit, it might be more than what is needed for small-scale cleanings, and users must handle it properly to ensure safety. Southeast Softwash Monu-Mental Cleaner stands out as a robust solution for cleaning and preserving stone surfaces.

Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover is designed as a gentle yet effective outdoor cleaner that works on various surfaces including wood, concrete, vinyl, and metal. While it’s not specifically marketed for headstones, its ability to remove moss, mold, and algae without scrubbing or rinsing makes it a convenient option for cleaning stone monuments. Because it works gradually with rain and wind, green stains often clear within a couple of weeks, but tougher black or older stains can take several months to fade, which might require some patience.

Its formula is unscented and fragrance-free, which is good for users sensitive to strong smells, and it does not require harsh chemicals or power washing, reducing the risk of damage to delicate stone. Users mix it with water and spray on a dry surface, then leave it alone, offering ease of use and low physical effort. Since it requires multiple applications over time for deep stains, it’s less suited for someone needing immediate results.

This product provides a user-friendly, low-maintenance option suitable for gently removing outdoor biological stains from a variety of surfaces, including headstones, though its slow action might be a downside for some.

The Granite Gold Daily Cleaner Refill is designed primarily for natural stone surfaces like granite, marble, travertine, and quartz, making it suitable if your headstone is made of these materials. It effectively removes grime and dirt without leaving streaks, thanks to its pH-balanced, residue-free formula that is safe for food-prep surfaces and free of harsh chemicals like phosphates and ammonia. Its light citrus scent adds a fresh touch without being overpowering.

The cleaner is easy to use with a ready-to-spray bottle or refill option, which helps reduce waste. This product is not specifically marketed as biodegradable, which might be a concern if you prefer eco-friendly options for outdoor use. While it is safe and gentle on stone, it may not tackle very tough or aged stains as aggressively as specialized headstone cleaners.

It makes a good choice if you want a gentle everyday cleaner for natural stone headstones and surrounding surfaces, balancing ease of use and safety, but for heavy staining or other stone types, you might need something stronger or more tailored.