Pressure Washing Cost in Maryland
Locally calibrated hire vs. DIY cost data for pressure washing projects in Maryland. Cited sources, permit requirements, and a full build guide, free.
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HIRE A PRO
$200–$700
Fully installed, labor + materials
DIY COST
$100–$400
Materials + rentals, your labor free
Suitable for most DIYers with basic tool experience.
Government Data · Government Data · Submitted Quotes (n=0)
How we got these numbers
National benchmark costs from RSMeans, Angi, Fixr, and HomeGuide are adjusted for Maryland using two federal datasets: the Bureau of Economic Analysis Regional Price Parity (RPP) index and the Bureau of Labor Statistics (BLS) Occupational Employment and Wage Statistics. Maryland's RPP is 1.1 (national baseline = 100) and its BLS labor adjustment factor is 1.10. Higher RPP means goods and services cost more relative to the national average; the BLS factor scales contractor labor rates to local wage levels. We blend these two adjustments, weighted 40% RPP, 60% BLS labor, to produce the ranges shown above.
adjusted_cost = national_benchmark × (0.4 × RPP/100 + 0.6 × bls_labor_adj)
RPP(Maryland) = 1.1 · BLS adj = 1.10
What's included
| Item | Qty | Unit Cost | Subtotal |
|---|---|---|---|
| Pressure washer rental or purchase | 1 | $120 | $120 |
| Cleaning solution or detergent | 1 to 2 gal | $20 | $40 |
| Surface cleaner attachment | 1 | $60 | $60 |
| Nozzle tips set | 1 set | $20 | $20 |
| Materials Total | $240 | ||
Tools you'll need
See the tools we'd buy →TOOLS YOU PROBABLY OWN
- Eye protection and closed shoes
- Garden hose and extension wand
TOOLS TO RENT OR BUY
Pressure washer
Rent for a one-time job, buy if you will reuse it
Build sequence
- 1
Clear the area, cover plants and outlets, and pick the right nozzle for the surface.
COMMON MISTAKE
Using too narrow a tip can gouge wood and etch concrete.
- 2
Apply detergent and let it dwell on grimy or mildewed surfaces.
- 3
Test pressure on an inconspicuous spot, then work in even, overlapping passes.
COMMON MISTAKE
Holding the tip too close strips paint and damages siding.
- 4
Use a soft-wash, low-pressure approach on siding and never spray up under it.
- 5
Rinse thoroughly and let surfaces dry before sealing or staining.
Permits and code requirements
PERMIT REQUIREMENTS
Permit rules for pressure washing vary by city and county in Maryland. Most structural, electrical, plumbing, or mechanical work needs a permit and an inspection. Confirm with your local building department, or see the Maryland guide for specifics.
PERMIT THRESHOLD
Varies by municipality
Disclaimer: Always verify permit requirements with your local building department before starting work. Requirements vary by municipality and are updated periodically.
Frequently asked questions
NEXT STEPS
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UPDATED JUNE 2026