Why Should I Clean Antique, Stained or Historic Glass Windows? 

Stained and leaded glass windows are more than decorative—they're historic architectural elements, often hand-crafted and designed to last over 100 years.  But like any exterior surface, they: 

  • Collect soot, algae, and dust, especially in Houston’s humid climate 

  • Risk lead oxidation, warping, or glass pitting if left unmaintained 

  • Lose brilliance over time if light transmission is blocked by buildup 

What’s the Right Way to Clean? 

Not all cleaning methods are safe for antique windows. Many modern techniques—like pressure washing or chemical spraying—can cause irreversible damage. 

Instead, we recommend: 

  • Hand-cleaning only, using pH-neutral soap (like Dawn) 

  • No bleach, ammonia, vinegar, or abrasive pads 

  • Light wiping with a natural sponge, rinsing with fresh water 

  • Drying with lint-free cloths and soft brushes for edges 

  • Never applying pressure or sealing compounds  

Why We Cover Your Windows During House Washing 

Even if your stained glass isn’t being cleaned directly, we always protect it by hand-masking it before washing nearby walls, brick, or stone. 

Masking protects against: 

  • Bleach-based mist and chemical overspray 

  • Unintended water intrusion around old glazing or seals 

  • Accidental runoff that could accelerate corrosion 

Think of masking as a form of respect — for your home, for its legacy, and for the artisan who made that glass nearly a century ago. 

What Every Homeowner & HOA Should Know 

  • Your windows may be made of hand-cut stained glass, secured by lead cames and glazing putty that degrades over time. 

  • We recommend a light cleaning every 2–3 years, especially for north-facing walls or homes under tree cover. 

  • If you see bowing, cracks, or light leaks—it’s time to consult a glass restoration expert. 

Need restoration?  Contact a specialist

Thank You for Preserving Houston’s History 

We’re proud to be one of the few exterior cleaning companies in Houston who specialize in historic home care — from stained glass to slate roofs. 

If you loved our service, please consider: 

  • Scanning the QR code below to leave a quick testimonial 

  • Sharing our info with your HOA or preservation group 

We’ll follow up in 6 months with a light rinse option to maintain your home’s elegance and minimize future cleaning needs.