Pressure Washing in Dundalk, MD That Actually Gets the Job Done
RBJ Exterior Solutions serves Dundalk and the surrounding Baltimore County communities with professional pressure washing, soft washing, roof cleaning, gutter cleaning, and mosquito control. If your siding, driveway, or roof has been collecting algae and grime through another Maryland summer, we can clear it out.
- Licensed & insured
- Soft wash + pressure wash
- Free estimates


Why Dundalk Homes Deal with More Exterior Grime Than Most
Dundalk was developed heavily between the 1920s and 1960s, and a large share of its residential properties feature older vinyl, aluminum, and painted wood siding that oxidizes and stains faster than newer materials. The neighborhoods closest to the water, including areas around Dundalk Marine Terminal, the Back River Neck peninsula, and the shoreline communities off Grays Road, see higher ambient moisture levels that accelerate the growth of algae, mold, and mildew on every exterior surface, from shingles down to the concrete apron at the bottom of the driveway.
That moisture problem compounds with the tree canopy. Dundalk has significant mature tree cover, and shaded roofs stay damp longer after rain, which is exactly the environment where black streak algae and moss take hold on asphalt shingles. Homeowners often mistake those black streaks for simple dirt or granule loss, but they are almost always a cyanobacteria called Gloeocapsa magma, which keeps growing unless treated with the right cleaning agents.
The area also sits at the receiving end of Baltimore's humid mid-Atlantic weather patterns. Every summer brings heat, high humidity, and convective storms that leave standing water in gutters and on flat deck surfaces. Every fall dumps a fresh load of leaves from the canopy into those same gutters. By spring, most Dundalk homes have six months of biological growth and debris loading on their exterior surfaces that a garden hose will not touch.

Exterior Cleaning Services Available in Dundalk, MD
RBJ Exterior Solutions handles every major exterior surface on a residential property. Whether you need one service or the whole house done at once, these are the options available to Dundalk homeowners.
- Pressure Washing and Exterior Cleaning
High-pressure water cleaning removes built-up dirt, mold, mildew, and staining from siding, foundations, retaining walls, and other hard surfaces around your Dundalk property. This is the starting point for most full-exterior jobs.
- House Washing and Soft Washing
Low-pressure soft washing uses professional-grade cleaning solutions to strip algae, oxidation, and biological growth from vinyl, brick, stucco, and painted surfaces without the risk of surface damage. Older Dundalk siding especially benefits from this lower-pressure approach.
- Roof Cleaning and Soft Wash
Biodegradable cleaning agents applied at low pressure kill and remove the black streaks, moss, and lichen that are common on shaded roofs in Dundalk neighborhoods. This method follows manufacturer guidelines and does not void shingle warranties the way high-pressure roof washing does.
- Gutter Cleaning
Leaves, debris, and compacted buildup are fully cleared from gutters and downspouts, preventing the overflow and fascia damage that Baltimore County's heavy fall canopy drop causes every year in Dundalk. Clogged gutters also push water against foundations, which is a particular concern for older homes in the area.
- Driveway and Sidewalk Cleaning
Surface cleaning equipment paired with high-pressure water pulls out oil stains, tire marks, rust, and embedded dirt from concrete driveways and walkways. Dundalk's older concrete tends to be more porous, so stains that have been sitting for years often come out better than homeowners expect.
- Deck and Patio Cleaning
Wood, composite, and stone deck and patio surfaces are cleaned of mildew, tannin stains, and grime that builds up through Maryland's wet seasons. If you have a rear deck on the water side of your property, the humidity load on that surface is almost always higher than the front of the house.
- Fence Washing
Pressure or soft washing is applied to wood, vinyl, aluminum, and chain-link fencing to remove the green algae film and weathering that dulls fence color and makes the yard look neglected. A single fence wash before listing a property can noticeably change curb appeal on a Dundalk street.
- Window Cleaning
Exterior glass, frames, and sills are cleaned of hard water deposits, oxidation, and environmental film that standard hosing cannot fully clear. Homes near Back River and the waterfront areas of Dundalk accumulate mineral film on glass faster than inland properties.
- Mosquito Control and Mosquito Treatment
Scheduled barrier spray programs applied to trees, shrubs, and ground cover significantly reduce active mosquito populations through the season. One-time event treatments are also available for outdoor gatherings. The standing water and dense vegetation common in parts of Dundalk create ideal mosquito breeding conditions from late spring through early fall.
Neighborhoods and ZIP Codes We Serve in and Around Dundalk
RBJ Exterior Solutions works throughout the Dundalk, MD area, covering the communities and neighborhoods that make up this part of eastern Baltimore County. If your address falls in the 21222 ZIP code, which covers the core of Dundalk, or in the 21224 corridor that runs toward the city line, we serve those areas regularly.
Within and adjacent to Dundalk, we cover neighborhoods including Eastfield, Charlesmont, Inverness, Merritt Park, Gray Haven, Holabird, Trappe, and the communities along the Back River Neck peninsula. We also extend east into Essex and Middle River, and west toward the Highlandtown and Greektown edges of the city.
For residents further into Baltimore County, RBJ Exterior Solutions also serves Towson, Parkville, Rosedale, Nottingham, and White Marsh to the north and northeast, and Catonsville and Woodlawn to the west. Dundalk homeowners who have family or investment properties in other parts of the county can coordinate service for multiple addresses through the same call.
What to Expect When You Book a Pressure Washing Job in Dundalk
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