Serving Nassau & Suffolk Counties
Allied All-City Service Team
Power Washing Steam Cleaning Long Island

Clean Surfaces. No Shortcuts. Done Right the First Time.

Allied All-City delivers commercial-grade power washing and steam cleaning across Long Island — cutting through grease, grime, and buildup that ordinary washing leaves behind.

Why Choose Us

Why Long Island Trusts Allied All-City

No Subcontractors Ever

Every job is handled by our own trained crew — no handoffs, no strangers on your property, consistent results every time.

Commercial Volume Capacity

We handle high-volume commercial sites with industrial-grade equipment and experienced crews who understand large-scale cleaning demands.

Nassau and Suffolk Certified

Fully licensed and certified to operate across both Nassau and Suffolk Counties, with all proper environmental compliance in place.

Family Owned Decades of Experience

As a family-owned company, we treat every job like it's our own property — delivering the care and accountability chains don't.

Power Washing Services Long Island

Built for the Jobs That Ordinary Cleaning Can't Handle

Power washing and steam cleaning are not the same thing, and knowing which one you need makes a real difference. High-pressure water washing is effective for breaking up surface dirt, mold, and staining on driveways, parking lots, and building exteriors. Steam cleaning goes further — the heat kills bacteria, sanitizes surfaces, and breaks down grease and oil at a molecular level that cold-pressure washing simply cannot match. Allied All-City handles both. We serve commercial properties, industrial facilities, HOA communities, restaurants, and residential customers throughout Nassau and Suffolk Counties. Whether you need a single driveway cleaned or a multi-building exterior refreshed before a property sale, we bring the right equipment and the right experience to every job. Our crews are in-house only — no subcontractors. That means the people showing up to your site have been trained by us, are accountable to us, and take pride in the work that goes out under our name.
Why Clients Choose Allied / All-City
Licensed & insured in Nassau and Suffolk County
Available 24/7 for emergencies — same-day response
Serving Long Island for over 50 years
Upfront pricing — no hidden fees or surprises
Commercial & residential — no job too large or small
100% satisfaction guaranteed on every job
Steam Cleaning Benefits Long Island

What You Get When the Job Is Done Right

From restaurant kitchens to residential driveways, our power washing and steam cleaning services leave surfaces cleaner — and keep them that way longer.

50+ Years Serving Long Island
200+ Five-Star Google Reviews
24/7 Emergency Service Available
Transparent Pricing
Steam heat kills bacteria and pathogens that pressure washing alone leaves behind on surfaces.
Licensed & Insured
Grease and oil stains are fully emulsified and removed, not just pushed around with water pressure.
Fast Response Time
Building exteriors look newer and last longer when mold, mildew, and oxidation are removed properly.
Advanced Equipment
Parking areas and driveways maintain better traction and curb appeal after thorough power washing.
Expert Crew
Commercial kitchens and grease trap exteriors meet health code standards with regular steam cleaning service.
Satisfaction Guaranteed
Equipment and machinery last longer when grease buildup is cleaned before it causes wear and heat issues.

Every benefit above is delivered on every job we take.

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Our licensed crew serves Nassau and Suffolk County with same-day availability and transparent pricing on every job.

No Obligation Same-Day Available Free Estimates Nassau & Suffolk
Commercial Power Washing Long Island

Driveways, Exteriors, and Surfaces Done Properly

Commercial properties have demands that residential-grade pressure washers were never built for. Warehouse loading docks accumulate grease and oil from years of vehicle traffic. Restaurant exteriors collect grease exhaust residue that becomes a fire hazard and a health violation. Strip mall facades develop mold and oxidation that drives away customers before they even walk in the door. Allied All-City operates industrial-capacity equipment and sends in experienced crews who know how to work efficiently on large footprints without disrupting your business operations. We schedule around your hours, work in phases when needed, and clean up completely before we leave. We work with property managers, facility directors, municipalities, and business owners throughout Nassau and Suffolk Counties. If you have a commercial cleaning challenge that the average pressure washing company turned down or underperformed on, we want to hear about it.
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Residential Power Washing Long Island

Driveways, Exteriors, and Surfaces Done Properly

For homeowners on Long Island, the difference between a clean driveway and a properly cleaned driveway is more visible than most people expect. Years of oil drips, tire marks, and weather staining do not come off with a garden hose or a box-store pressure washer. It takes calibrated pressure, the right detergents, and in some cases steam heat to restore surfaces to a condition that actually looks clean. Allied All-City handles residential power washing for driveways, sidewalks, patios, retaining walls, vinyl siding, and wood decks. We adjust pressure and temperature based on the surface type to avoid damage while maximizing results. There is no template approach — each surface gets evaluated and treated appropriately. Homeowners who are preparing to sell, refinance, or simply want their property to look maintained consistently use our services. We are a company that shows up on time, does the work correctly, and leaves the site clean.
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Our Power Washing Process

A Straightforward Process From Quote to Clean

01

Site Assessment and Quote

We evaluate the surface area, material type, and soil conditions to determine the right method and provide an accurate quote.

02

Equipment Setup and Pre-Treatment

Our crew sets up industrial equipment and applies appropriate pre-treatment agents to loosen grease, mold, or staining before cleaning begins.

03

Wash, Steam, and Final Inspection

We complete the wash or steam cycle, rinse thoroughly, and walk the site to verify results before calling the job done.

FAQ

Frequently Asked Questions

Power washing uses high-pressure water to blast away surface-level dirt, mold, algae, and debris. It works well on concrete driveways, pavement, siding, and decks where the primary issue is surface accumulation. Steam cleaning adds heat to the equation — typically 200 to 300 degrees Fahrenheit — which allows the cleaning process to break down grease and oil at a molecular level, kill bacteria and pathogens, and sanitize surfaces in ways that cold-pressure water cannot. For Long Island businesses dealing with kitchen equipment, grease traps, or areas requiring sanitation compliance, steam cleaning is often the appropriate choice. Allied All-City uses both methods and will recommend the right one based on your specific surface and soil conditions.

It depends on the property type and how much traffic or environmental exposure the surfaces receive. A restaurant exterior or loading dock with heavy grease exposure typically needs cleaning every three to six months to stay compliant and presentable. Retail storefronts and office building exteriors generally benefit from annual or biannual cleaning. Parking lots and driveways in high-traffic commercial areas may need attention twice a year, especially after winter when road salt and sand accumulate. Allied All-City can evaluate your property and help you establish a maintenance schedule that keeps surfaces clean without over-servicing. Regular maintenance also costs less over time than periodic deep restoration cleaning.

Yes, and it is one of the most effective methods available for oil stain removal from concrete. Old oil stains penetrate the porous surface of concrete and bond with the material over time, making them resistant to simple pressure washing. Steam cleaning at high temperatures breaks the bond between the oil and the concrete and allows the emulsified residue to be removed cleanly. Allied All-City uses pre-treatment agents in combination with steam for stubborn or aged stains. Results vary depending on how long the stain has been present and how deeply it has penetrated, but in most cases significant improvement or complete removal is achievable. We will assess the stain before the job and give you an honest evaluation of expected results.

We are careful about what we use, where we use it, and how we manage runoff — particularly on Long Island where environmental regulations regarding runoff into storm drains and groundwater are enforced. We use biodegradable detergents and pre-treatment products wherever possible, and we take precautions to protect adjacent landscaping during the cleaning process. For jobs near storm drains or environmentally sensitive areas, we can implement containment and recovery procedures for the wash water. As a company that also operates an environmental services division and holds Nassau and Suffolk County certifications, we take compliance seriously. We do not cut corners on chemical management to save time.

Allied All-City never uses subcontractors — not for power washing, not for any service we offer. Every crew member who shows up to your property is a direct employee who has been trained by us, is insured under our policy, and is accountable to our standards. This matters more than most customers initially realize. With subcontracted work, there is no guarantee of consistency, no direct accountability when something goes wrong, and often a disconnect between what was sold and what gets delivered. With Allied All-City, the people doing your job are the same people whose reputation is on the line. We have operated that way since the beginning and have no intention of changing it.

We clean a wide range of surfaces including concrete driveways, asphalt parking lots, brick and paver walkways, vinyl and aluminum siding, stucco, wood decking, retaining walls, commercial building facades, loading docks, dumpster pads, kitchen equipment exteriors, and industrial machinery. Each surface type requires a different pressure setting, nozzle configuration, and sometimes a different cleaning agent or temperature. Applying the wrong pressure to the wrong surface — vinyl siding with too-high PSI, for example, or wood decking without proper precautions — causes damage that can be expensive to repair. Our crews are trained to assess surfaces before starting and to adjust their approach accordingly. If you have a surface you are unsure about, ask us before booking and we will give you an honest answer.

Service Areas

Proudly Serving Long Island

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