Blog · September 28, 2026
How Much Does Pressure Washing Cost in Maryland?
If you're getting quotes for pressure washing in Columbia, Ellicott City or anywhere in Howard County, the numbers can look all over the map. Two companies can quote the same house hundreds of dollars apart. Here's what actually drives the price, so you can compare quotes with confidence.
What changes the price
Size of the home. A townhouse in Owen Brown takes far less time than a large single-family home in River Hill. Most companies price by square footage or by the length of siding to be cleaned.
How dirty it is. Heavy green algae on north-facing siding, or a roof that hasn't been cleaned in years, takes more cleaning solution and more time.
Surface type. Vinyl siding, brick, stucco, wood decks and asphalt shingles each need a different pressure and cleaning solution. Roofs almost always cost more than siding because of the extra safety setup.
Access. Steep roofs, three-story walls and tight side yards take more setup time.
Bundling. Cleaning the house, driveway, deck and fence in one visit usually costs less than booking each one separately, because setup and travel only happen once.
Pressure washing vs. soft washing
Pressure washing uses high-pressure water. It's the right tool for concrete, driveways, sidewalks and some patios. Soft washing uses low pressure and a cleaning solution that kills algae and mold at the root. It's the safe choice for siding, roofs and anything high pressure could damage. Be cautious of any quote that plans to blast your roof or siding with high pressure: it can strip shingle granules, force water behind siding and void warranties.
What to ask before you hire
Are you insured? Ask for proof of liability insurance before anyone works on your home.
Will you soft wash my siding and roof? The answer should be yes.
What's included? Confirm whether gutters, windows, walkways and plant protection are part of the price.
How often should you clean?
Most Maryland homes benefit from a house wash every one to two years. Our humid summers and shaded lots grow algae quickly, so homes near mature trees may need it more often. Many Columbia HOAs also send notices when siding or walkways get stained, and a cleaning is almost always cheaper than dealing with a violation.
Get a free quote
Every home is different, so we quote each job individually at no charge. Reno Restorations is locally owned, fully insured and 5-star rated on Google, serving Columbia, Ellicott City, Clarksville and all of Howard County. Request your free quote at renorestorations.com/quote or call (410) 645-0409.