Power Washing for Nassau County Homes
DME Maintenance provides professional power washing throughout Nassau County — driveways, sidewalks, decks, patios, and house siding. We use hot-water power washing equipment, which is significantly more effective than cold-water pressure washing at breaking down oil stains, mold, algae, and the organic buildup that Long Island’s coastal climate produces year-round. Every job starts with a surface inspection and pre-treatment where needed. Flat-rate pricing — no surprises.
Hot-water power washing — more effective than cold-water pressure washing for mold, oil, and organic staining
Pre-treatment applied for oil stains, algae, and heavy mold before washing begins
Correct pressure for each surface — higher for concrete, lower for wood and vinyl
Landscaping, outlets, and windows protected before starting
Nassau County License #H0101570000 — owner-operated, same crew every visit
What We Clean
Driveways & Sidewalks
Concrete and asphalt driveways accumulate oil drips, tire marks, algae, and winter salt residue. Power washing removes surface contamination, kills moss and weed growth between expansion joints, and restores the original surface. Nassau County driveways near mature trees or with northern exposure develop algae quickly — annual or biennial cleaning keeps them clean and slip-safe.
Starting at $350+
Decks & Patios
Wood and composite decks develop mold, mildew, and algae — especially on Long Island where summer humidity and tree cover accelerate growth. Power washing at the correct pressure removes buildup without raising the wood grain or damaging composite material. A clean deck is also the necessary first step before staining or sealing.
Starting at $350+
House Siding
Salt air from the South Shore, rain-driven dirt, and Long Island’s humid summers stain vinyl siding, cedar shingles, and painted wood exteriors. Power washing removes years of buildup and biological growth without damaging the surface when done at the correct pressure. Two-story homes and homes with multiple elevations quoted on-site.
Starting at $450+
How Professional Power Washing Works
Pre-inspection of all surfaces
We inspect every surface before starting — checking for cracks, damaged siding, loose caulk, or anything that could be worsened by high-pressure water. We protect landscaping, cover outlets, and close windows before we begin.
Pre-treatment application
For mold, algae, oil stains, and heavy organic buildup, we apply a surface-appropriate pre-treatment solution. This breaks down contaminants before pressure is applied, reducing the pressure needed and protecting the surface.
Power washing each surface
We use the correct pressure and nozzle for each surface type — higher pressure for concrete driveways and sidewalks, lower pressure for wood decks and vinyl siding. Every surface gets a full consistent pass with proper overlap for even results.
Rinse and final walk-through
After washing, we do a complete rinse and walk-through with the homeowner to confirm results. Any spots that need a second pass get addressed before we leave.
What Customers Say
Niamh O'Connor
Mineola • March 2026
“CO is no joke. Annual inspection complete. Worth every visit.”
★★★★★Mrs. Niamh Murphy
Rockville Centre • March 2026
“Pellet stove running properly again after the service.”
★★★★★Mr. DeShawn Anderson
Elmont • March 2026
“Annual gas fireplace service done. Ignition is much more reliable now.”
★★★★★Frequently Asked Questions
How much does power washing cost in Nassau County?
DME Maintenance charges flat rates: driveways from $350, walkways from $175, decks and patios from $350, house siding (1-story) from $450, house siding (2-story) from $650. A full exterior package — siding, driveway, walkways, and patio in one visit — starts at $895. Free on-site estimate. Call 516-690-7471.
What is the difference between power washing and pressure washing?
Power washing uses heated water, which is significantly more effective at dissolving grease, oil, mold, and organic buildup than cold-water pressure washing. DME Maintenance uses hot-water power washing equipment for all residential jobs in Nassau County — the results are noticeably better on Long Island driveways and siding that accumulate salt, mold, and algae.
Is power washing safe for my deck and siding?
Yes — when done by a professional using the correct pressure settings and nozzles for each surface. DME Maintenance uses lower pressure for wood decks, composite decking, and vinyl siding, and higher pressure for concrete driveways and sidewalks. We pre-inspect every surface and protect landscaping, outlets, and windows before starting.
How often should I power wash my Nassau County home?
Most Nassau County homes benefit from power washing every 1–2 years. South Shore homes near the water — where salt air accelerates mold, algae, and staining — may need annual cleaning. Driveways and patios benefit from cleaning every 12–18 months depending on tree cover and traffic.
Can you remove oil stains from my driveway?
Yes. Oil and grease stains require pre-treatment with a degreasing solution before power washing. DME Maintenance applies surface-appropriate pre-treatments for oil stains, mold, algae, and rust before washing. Results depend on how long the stain has been set and the driveway material — concrete responds better than asphalt.
Do you power wash throughout Nassau County?
Yes — DME Maintenance provides power washing throughout all of Nassau County including the South Shore, North Shore, Five Towns, and all mid-Nassau communities. Same-week appointments available. Nassau County License #H0101570000. Call 516-690-7471.
Do you offer a full exterior power washing package?
Yes. The full exterior package covers house siding, driveway, walkways, and patio in one visit — starting at $895 for most Nassau County single-family homes. Bundling is more cost-effective than scheduling each surface separately. Free on-site estimate — call 516-690-7471.
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Pricing — Power Washing Nassau County NY | Driveways, Decks, Siding
Flat-rate pricing. Free on-site estimate. Call 516-690-7471.
| Service | Price | Notes |
|---|---|---|
| Driveway (standard residential) | $350+ | Concrete or asphalt, single to 2-car width |
| Walkways & Sidewalks | $175+ | Front walk, side paths, public sidewalk strip |
| Deck or Patio | $350+ | Wood, composite, or concrete — up to 400 sq ft |
| House Siding — 1 Story | $450+ | Vinyl, cedar, or painted wood, all elevations |
| House Siding — 2 Story | $650+ | Full exterior, all elevations |
| Full Exterior Package | $895+ | Siding + driveway + walkways + patio — best value |
Prices are flat-rate starting points for standard Nassau County residential properties. Large or heavily soiled surfaces quoted on-site.
Power Washing Nassau County NY | Driveways, Decks, Siding — Free On-Site Estimate
Same-week appointments • Written inspection report • Nassau License #H0101570000