Drive-Thru Pressure Washing

For many customers, the drive-thru window is the only part of the store they see, which they use to judge the cleanliness of an eating establishment. Therefore, fast-food restaurants must remember to have their drive-thru deep cleaned. For such a task, you must turn to professional drive-thru pressure washing.

Washh is a fully insured, local pressure washing company that only hires the best technicians in the industry. We use the latest in pressure washing technology and eco-friendly products to achieve the best results. Contact us today for a free quote!

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Why Professional Drive-Thru Cleaning Is Essential

Though you typically clean and spray down your drive-thru every day, nothing beats having the area professionally cleaned. With such a busy schedule, it’s easy to overlook or put off. However, keeping this area best — free from grime, dropped food, and grease — will increase the value drive-thru customers give your restaurant.

Tailored Cleaning

Your drive-thru window is likely made up of different materials, ranging from glass and plastic to metal and concrete. Therefore, it’s imperative to know what cleaning method and solutions are necessary to achieve the best results without causing damage.

Promotes Health

A clean drive-thru is a healthy drive-thru. Mold, mildew, and other grime can easily stick to your drive-thru window and land in customers’ food orders.

Leaves No Residue

Professional pressure washing services use the best techniques and cleaning products to ensure no residual stain or contaminants remain. You can say goodbye to even the tiniest of flecks of dirt.

Get Expert Results Every Time

Amateurs make mistakes and often end up with damages or scratches on drive-thru windows. Having your drive-thru pressure washed by experienced professionals ensures unparalleled results every time.

Drive thru pressure washing charlotte nc

How to Different Materials in a Drive-Thru

An establishment’s drive-thru area should maintain cleanliness at all times, but that’s often easier said than done without the proper tools and knowledge. Attack each type of material with a different plan of action and a tailored cleaning method for effective and efficient results. Before starting the cleaning process, make sure to first sweep or wipe the surface area for any loose dirt, dust, or debris.


For the concrete driveway, it’s essential to apply a degreaser on the surface before starting the pressure washing process. This is to get rid of any oil or grease, as those can negatively affect the result. Following the application of a degreaser, spray the driveway with detergent to help loosen any thick or stubborn filth. Then, use a pressure level of 2,500 to 3,000 PSI and a 25-degree nozzle tip to rinse it down. To finish, apply a sealer for a longer lifespan.


Some drive-thru windows are made of glass, which naturally experiences its fair share of dirt and oil as well. Before cleaning, see to it that the window is completely shut to prevent water from entering the premises. Then, apply a cleaning solution or multi-purpose soap on the area, scrubbing if necessary. Rinse it down with a recommended pressure level below 2,000 PSI and a 40- to 60- degree nozzle as glass is more delicate than other materials.


Other drive-thru windows are made of high-grade plastic as they’re typically cheaper and safer at the same time. To clean plastic windows, a dish or laundry detergent usually works fine. Scrub the solution onto the surface before using low-pressure water (below 2,000 PSI) fed through a 25- or 40-degree nozzle to rinse the mixture down.


For aluminum surfaces, apply a cleaning detergent on the material and use a brush to scrub the detergent gently onto the area. If mildew is spotted, a vinegar and bleach solution can kill and remove the growth. Rinse it down with a suggested 25-degree nozzle and a pressure level of 2,000 PSI.


Be careful not to use cleaning solutions designed for wood or vinyl on steel surfaces as those may have adverse effects. To clean steel, simply combine 6 gallons of water and 1/3 cup of laundry detergent, then apply the solution using a fan tip. It is then recommended to rinse the area thoroughly using a pressure level of 2,000 PSI and a 25-degree nozzle.


Before applying detergent to brick surfaces, make sure to wet the area first. This is to avoid damaging the brick as the material is very porous and can easily absorb moisture. Then, apply a detergent solution to the area and allow it to sit for 5 minutes. To finish, it is suggested to wash down the area using a 25-degree nozzle and a pressure level of 500 to 2,000 PSI. Using too high a pressure can destroy the mortar in between.


For tile surfaces, it’s important to use a low-pressure level at all times. Too high a pressure can destroy the caulked seams and grout, thereby knocking the tiles loose. It’s equally important to inspect the tiles first for any gaps or openings. When spotted, these gaps should be sealed before cleaning the surface as water can settle inside and damage the material. For porcelain and ceramic tiles, power washing is not recommended.

Common Problems With a Drive-Thru

Drive-thru windows are open to a lot of contaminants, especially food-related ones. It’s imperative to know how to deal with each type to avoid damaging the surface and effectively clean the area.

Dust, Dirt, and Debris

For normal dirt, dust, and debris, use laundry detergent and cold water, adjusting the pressure level according to the surface material.

Oil and Grease

Drive-thru windows experience a lot of oil and grease, whether it’s from food or the vehicles passing through (brake fluid). Easily remove these stains using a degreaser before applying detergent and washing the area down with hot water.

Mold and Mildew

To kill mold and mildew, use household bleach and water or a mold and mildew detergent. Apply the solution to the affected area, allowing it to sit for a few minutes to completely kill the growths before rinsing it off. Soft washing works best.

Tire Marks

Tire marks can easily be cleaned using a degreaser. Let the degreasing solution sit for 30 minutes without drying and use a stiff brush to scrub the area for particularly stubborn marks before washing off.


For minor rust stains, apply lemon juice to the affected area and let it sit for 10 to 15 minutes. For major rust stains, a rust remover with oxalic acid can break down and loosen the particles. Washh uses five different rust removers for the job. If necessary, we use a brush to scrub the solution before rinsing it off.

There’s No Better Choice Than Washh

It’s clear that professional services are required to get your drive-thru window looking like new again. But, which company should you go with? When you hire Washh, you can look forward to the following:

  • A licensed and fully insured local company
  • A completed Job Hazard Analysis form before every job
  • At least two technicians for each job
  • Property inspection report and a quote for repairs
  • Eco-friendly proprietary cleaning solutions guaranteed to be more effective than most
  • CDC-approved and EPA-registered chemicals for decontamination and sanitization
  • Customizable services based on client needs, budget, and schedule

Let the team at Washh take care of all your drive-thru pressure washing needs! With fully insured, highly skilled technicians and years of experience, expect fast and effective service each time. Call us today to get a free estimate or learn more about drive-thru pressure washing in Charlotte NC.