Deep-Cleaning Your Home’s Exterior and Landscaping

CURB appeal is more than just aesthetics; it is the first line of defense for your home's structural health. Over time, organic growth like moss, mildew, and algae can trap moisture against your siding and stone, leading to premature rot or material decay. A thorough seasonal cleaning doesn't just make the house look new, it clears away the debris that hides cracks or damage. Done well, this project is a methodical process of top-down cleaning and perimeter grooming. You aren't looking to blast surfaces into submission, but rather to gently lift away buildup. By combining the right detergents with the correct mechanical approach, you protect your investment while revitalizing your home's exterior finish.

Clear the Perimeter First. Walk the entire exterior and remove any debris, branches, or overgrown vegetation pressing against the house. Pull back mulch or rocks two inches from the foundation to prevent moisture wicking.
Protect What Matters. Use painter's plastic and masking tape to cover electrical outlets, light fixtures, and sensitive air intake vents. Saturate any nearby landscape plants with fresh water to dilute any potential runoff.
Coat Low to High. Use a pump-up garden sprayer to apply a biodegradable siding cleaner to the walls. Work from the bottom up to ensure even coverage, then let it sit for five to ten minutes without letting it dry.
Rinse Top to Bottom. Using a garden hose with a fan-spray nozzle or a pressure washer on a low-pressure setting, rinse the siding from the top down. Keep the stream at a downward angle to avoid driving water behind the siding panels.
Attack Concrete Stains. Apply a dedicated concrete cleaner or degreaser to driveways and walkways. Scrub stubborn stains with a stiff-bristle push broom before rinsing thoroughly with a high-volume water stream.
Verify Total Coverage. Walk the perimeter once more to ensure all soap residue is gone and that no screens or vents were damaged. Remove the painter's tape and plastic covers.