Between humid summers and pollen-filled springs, Baltimore County homes face faster grime and algae buildup than most regions. For this reason, lots of Baltimore County homeowners ask, “How often should you pressure wash your home to maintain curb appeal and prevent long-term surface damage?”
Hotshots Pressure Washing, a trusted local company serving Baltimore and Howard counties, recently published a blog to help homeowners determine the ideal pressure washing schedule for siding, roofs, and exteriors.

How Often Should You Wash?
With Baltimore County’s average humidity of 64% and 42 inches of rainfall per year, exterior surfaces can quickly rack up mold, mildew, and algae, which reduce aesthetic appearance and longevity. To avoid these troubles, the experts at Hotshots Pressure Washing recommend these exterior cleaning frequencies for Baltimore County homes:
- Most suburban homes: Annually
- Homes near trees or water: Every 6–9 months
- Brick or older rowhomes: Every 18–24 months
When it comes to mildew and mold removal, homeowners should work with professionals who follow ARMA roof cleaning guidelines for algae and moss prevention and observe strict siding protection protocols to preserve material integrity.
Jacob Selby, the owner of Hotshots Pressure Washing, assures, “We say the solution to pollution is dilution; our approach protects both your home and the environment.”
Why Baltimore County Homes Need Pressure Washing
Hotshots Pressure Washing professionals point out that dense tree canopies, frequent rainfall, and proximity to Chesapeake Bay promote damaging grime and organic buildup on the exterior surfaces of Baltimore County homes.
Additionally, local HOAs enforce rules that require homeowners to maintain cleanliness and protect property values as outlined in Title 11B of the Maryland Code. Those who don’t comply may receive warning letters or pay hefty fines.
Industry experts like Better Homes & Gardens say that consistent soft washing prevents costly repairs and maintains curb appeal. Homeowners can save lots of money over the long haul from reduced maintenance costs.
“Many Baltimore County homeowners avoid HOA fines and long-term damage simply by scheduling regular cleanings,” said Selby.
Safe and Sustainable Cleaning Practices
Besides answering the question, “How often should you pressure wash your home?” Hotshots Pressure Washing also explains their EPA-compliant and biodegradable methods.
The company uses low-pressure soft wash techniques to prevent damage to delicate surface materials like asphalt shingles, vinyl, and wood. Pre- and post-rinsing, runoff control, and covering with tarps help protect plants, pets, and sensitive surfaces during the exterior cleaning process.
“We treat every home like our own. That’s why our clients keep coming back,” said Selby.
Learn When To Refresh Your Home’s Exterior the Right Way
For more information about “How often should you pressure wash your home?” homeowners can review the full guide on the Hotshots Pressure Washing website. It’s also advisable to check the siding or roof for visible buildup before spring and schedule seasonal maintenance to avoid extortionate repair costs down the road.

