Pressure Washing Cost

Professionally washing the exterior of a house typically costs about $200 to $600, with a national average around $300 for a standard single-story home. The price depends mainly on the size of the home (it's charged roughly by wall square footage), how dirty the siding is, and the number of stories — a two-story house costs more because of the added area and the access equipment needed to reach it safely. Note that a 'house wash' is a soft wash, not high-pressure blasting: contractors apply a low-pressure cleaning solution that kills algae and mildew and then rinse, which protects the siding from the cracking and water intrusion that high pressure can cause. Because this is largely a labor charge, doing it yourself can save a good amount — a pressure washer rental runs about $50 to $100 a day plus supplies — though a two-story home adds real access and safety considerations that lead many homeowners to hire out at least the upper level. Enter your siding's wall area and soiling level above for an estimate specific to your house, with the DIY comparison alongside.

Professional driveway pressure washing usually costs about $80 to $200, with a standard two-car concrete driveway typically running $100 to $150. Priced per square foot, concrete cleaning is roughly $0.15 to $0.30, and because it's fast, straightforward work, it's one of the cheaper exterior-cleaning jobs — which also means small driveways often hit a contractor's minimum service fee (around $100 to $150) rather than the per-foot rate. Cost goes up with size, with heavy staining (oil, rust, deep-set algae), and with add-ons like sealing afterward. Because pro driveway cleaning is already inexpensive, the DIY savings here are modest: a pressure-washer rental is about $50 to $100 a day, so you'll save some, but not as much as you would washing siding or a deck. If you do DIY a driveway, a surface-cleaner attachment (a flat spinning-nozzle tool) is well worth it — it cleans far faster and more evenly than a wand, avoiding the zebra-striping that a narrow nozzle leaves on concrete. Enter your driveway's square footage and soiling above for a tailored estimate.

It can, if the wrong pressure or technique is used on the wrong surface — which is why matching the method to the material matters. On durable hard surfaces like concrete driveways, patios, and sidewalks, proper pressure washing is safe and effective. But on more delicate surfaces, high pressure causes real damage: it can crack or shatter vinyl siding and force water behind it (leading to hidden mold and rot), strip paint and gouge wood on siding and decks, break window seals, and — most seriously — strip the protective granules off asphalt shingles and void the roof's warranty. That's why house siding and roofs should be soft washed instead: low pressure (around 60–100 PSI) plus a cleaning solution that does the work chemically rather than by force. Even on concrete, an overly aggressive nozzle held too close can etch or 'burn' the surface and leave streaks. The keys to avoiding damage are using the appropriate pressure and nozzle for the surface, keeping the wand moving and at a proper distance and angle, and soft-washing anything that high pressure would harm. If you're unsure — especially on siding, older or historic materials, or anything at height — hiring a professional who selects the right method is cheaper than repairing damage. This calculator treats driveways and patios as pressure-wash jobs and siding and roofs as soft-wash jobs for exactly this reason.

It comes down to how often you'll use it. Renting makes sense for occasional or one-off jobs: a pressure washer rents for roughly $50 to $100 a day (an electric unit at the low end, a more powerful gas unit higher), so for an annual driveway-and-patio cleaning or a single project, renting avoids the cost of buying, storing, and maintaining a machine. Buying makes sense if you'll use it several times a year across multiple surfaces — a decent consumer electric model runs a couple hundred dollars, a gas model more, and if you'd otherwise rent two or three times a year, ownership pays for itself in a season or two, with the convenience of grabbing it whenever you need it. Consider a few things before deciding: storage space (gas units are bulky and need winterizing and fuel maintenance), how much power you actually need (electric units around 1,300–2,000 PSI handle cars, furniture, and light siding; gas units 2,700+ PSI are better for concrete and big jobs), and whether you'll keep up with the upkeep. For most homeowners with just a driveway to clean once a year, renting is the economical choice; for someone maintaining a driveway, deck, patio, and fence regularly, buying wins. This calculator's DIY figure is based on a rental, which is the fair comparison for a single job.

For most of the country, spring and fall are the ideal seasons for pressure washing, though it can be done any time conditions are right. The main requirements are mild, dry weather: you want temperatures comfortably above freezing (ideally 50°F or warmer) so water doesn't freeze on the surface or in the equipment, and a dry day so surfaces can dry properly afterward — important both for your results and because trapped moisture under siding can cause mold. Spring is popular because it clears off the grime, pollen, and mildew that winter leaves behind and refreshes the home for the year, and it's good prep before summer projects like painting, sealing, or staining. Fall is also excellent — cleaning off summer's dirt and algae and prepping surfaces before winter — and it's often when deck cleaning happens ahead of resealing. Summer works fine but avoid washing in direct, intense heat, which can make cleaning solutions dry too fast and streak; early morning is better. Winter is generally off-limits for pressure washing in cold climates because of the freezing risk, though it's fine year-round in mild, frost-free regions. Avoid washing right before rain (you'll just get it dirty again) or in windy conditions (overspray and uneven results). If you're timing it around another project, wash first, let everything dry fully, then paint, seal, or stain.