Care & Maintenance Guide
How to Clean & Maintain a Headstone in the New Mexico Desert
New Mexico's desert environment is harder on monuments than most people realize. Here's how to safely clean and preserve a granite headstone — and protect it for generations to come.
Why New Mexico's Desert Environment Is Unique
The Chihuahuan Desert and Southern New Mexico's climate create specific challenges for granite monuments and headstones. Understanding these conditions helps you care for a memorial more effectively:
- Extreme temperature swings: Summer days can exceed 100°F while winter nights drop near freezing. This thermal cycling can stress surface finishes over time.
- Desert dust and grit: Fine alkaline dust coats monuments and, if left to accumulate, can be mildly abrasive and dull polished surfaces.
- Intense UV radiation: High altitude + desert sun means more UV exposure than most of the country. This can fade certain surface treatments over years.
- Monsoon season: Summer monsoon rains can deposit mineral deposits and promote biological growth (lichen, algae) in shaded areas.
Safe Cleaning Methods for Granite Headstones
Most granite headstones can be safely cleaned with the following method. Plan to clean once or twice per year for best results.
What You'll Need:
- Non-ionic soap (D/2 Biological Solution is the gold standard, widely available online)
- Soft-bristled brush (natural fiber — not wire, not stiff synthetic)
- Clean water (bring extra; avoid using hard well water if possible)
- Soft cloths or sponges
- Garden kneeling pad (for your comfort)
Step-by-Step Cleaning Process:
- Rinse first. Wet the entire monument with clean water to remove loose dust and debris. This prevents scratching during scrubbing.
- Apply soap solution. Mix non-ionic soap with water per the product instructions. Apply to the stone and let it dwell for 5–10 minutes on any stained or discolored areas.
- Scrub gently. Use a soft brush in small circular motions. Work from top to bottom. Pay extra attention to engraved letters and decorative areas where dirt accumulates.
- Rinse thoroughly. Remove all soap residue with clean water. Soap left on the stone can attract dirt and leave residue.
- Allow to dry naturally. Let the stone air dry. Don't use heat sources to speed drying.
What NOT to Use or Do
Many well-intentioned cleaning attempts cause permanent damage. Avoid:
Bleach or chlorine
Bleach can discolor granite, especially black and dark granites. It kills surface lichen temporarily but drives it deeper into the stone.
Pressure washers
High pressure damages engraved lettering, removes surface finish, and can loosen the monument foundation. Never use a pressure washer.
Wire brushes or abrasive pads
Scratches the polished surface permanently. Even light scratches dull the finish and make future cleaning harder.
Vinegar or acidic cleaners
Acids etch granite and dissolve the surface over time. This includes many household cleaners.
Shaving cream
A popular internet tip — but the alcohol and chemicals in shaving cream can stain lighter granites.
Scraping with metal tools
To remove lichen or deposits, never use metal scrapers. Plastic scrapers used very gently are acceptable.
How Often Should You Clean a Monument?
For most New Mexico cemeteries, cleaning once or twice a year is sufficient. Spring (after winter dust season) and fall (after monsoon season) are natural times to visit and clean.
Once a year
Adequate for most monuments in full sun with regular rain.
Twice a year
Recommended for shaded monuments or those near trees (more lichen growth).
Inspect annually
Check for settling, tilting, cracks, or chip damage. Catching issues early prevents larger problems.
After major storms
A rinse after heavy monsoon rains removes debris and mineral deposits before they set.
When to Call for Professional Restoration
Some issues go beyond routine cleaning and require professional monument restoration services:
- Monument is tilting, leaning, or settling unevenly
- Chips, cracks, or broken sections
- Deep-set lichen or heavy biological growth
- Faded or damaged engraving that needs re-cutting
- Weathered bronze plaques or oxidized metal elements
- Complete restoration of a neglected older monument
Rose Rock Monument offers professional restoration services throughout Southern New Mexico. We can re-level, re-polish, repair, and restore monuments to honor the memory they represent.
Monument Restoration Services
If a monument needs more than routine cleaning, our team can help. We offer restoration services throughout Alamogordo, Las Cruces, El Paso, Roswell, and Southern New Mexico.