Old Zionsville Roof Washing Services
Old Zionsville sits in the wooded southern stretch of Lehigh County, where Upper Milford Township spreads out into rolling mature canopy and the kind of shaded lots where algae, moss, and lichen take hold quickly. A single low-pressure wash handles all three at once.
No pressure on the shingles, no scraping. The detergent does the work and the rain finishes it.
Our Process
Plant and Property Protection
Before anything touches the roof, we protect all plants and landscaping around the home. We bag every downspout to collect leftover detergent and prevent it from reaching the grass or garden beds.
Low-Pressure Detergent Application
We apply a specialized detergent to the entire roof surface using a low-pressure method. The detergent is designed to kill all growth on the shingles, including algae, moss, and lichen. No high pressure is ever used on the roof.
Immediate and Ongoing Results
The algae and black streaking disappear immediately during the wash. Heavier growth like moss and lichen turns bright white after the detergent is applied. Over the following weeks, the dead growth breaks down naturally and washes away with the next good rainstorm. We use this approach specifically to avoid pulling growth off prematurely, which could damage the shingles underneath.
What Our Customers Say
"Very satisfied with the work and results. Thank you"
"⭐️⭐️⭐️⭐️⭐️ If I could give more stars I would! 🤩 Pressure Brothers did an absolutely amazing job on our house wash! From start to finish, the entire experience was professio..."
"Above and beyond 5-star service! From my initial contact to meeting Ryan for a more than fair estimate, to Robbie's (at the time promised) and crew PLUS Joe's finishing touches, Pr..."
Frequently Asked Questions
Why Old Zionsville Homeowners Choose Pressure Brothers
Old Zionsville and Upper Milford Township have larger, often more wooded lots than the boroughs closer to Allentown. That setting is beautiful but it is exactly the kind of shaded, moist environment that drives moss and lichen growth on roofs, especially on north-facing slopes.
Older homes scattered across the township get a longer detergent dwell so the growth breaks down without disturbing already-weathered shingles. Newer homes get the standard low-pressure detergent process that protects the manufacturer warranty. Every job includes plant protection, downspout bagging, and a final walkthrough.
Ready for a Cleaner Home in Old Zionsville?
Get a free, no-obligation estimate. Most quotes are returned the same day.
Get Your Free Quote (610) 417-7335Last updated May 2026
