As a Senior Building Services Specialist with Old World Building Services Of Arkansas LLC, I’ve seen firsthand how Arkansas weather can take a toll on commercial and residential properties. This was especially true this past September. After a period of heavy, late-season rain and relentless humidity, we received a call from a concerned property manager in North Little Rock’s historic Argenta district. Their main problem? The beautiful concrete walkways and patios surrounding their mid-century style office building had become treacherously slick.
The property manager explained that what started as a few dark spots had rapidly transformed into a widespread, greenish-black film covering nearly every exterior flat surface. After a morning shower, the walkways were like an ice rink. With clients and employees using these paths daily, it was no longer just a cosmetic issue - it was a significant liability. They needed a fast, effective, and professional solution for slick algae removal on concrete North Little Rock, and they knew Old World Building Services Of Arkansas LLC was the team to call.
The Assessment
When I arrived on-site to perform the initial inspection, the scope of the problem was immediately clear. The property, a handsome brick building with architectural cues from the 1950s, was surrounded by mature trees. While beautiful, the shade, combined with the recent rainfall, had created a perfect breeding ground for algae, mildew, and Gloeocapsa magma - the bacteria responsible for those stubborn black streaks. The north-facing walkways, which received the least amount of direct sunlight, were in the worst condition. The concrete had a visible, slimy sheen, and I could feel the lack of traction under my work boots even when it was dry.
I took a moment to analyze the concrete itself. It was poured aggregate, common for buildings of that era, and over the decades, it had developed a porous texture. This porosity, while normal, provides countless microscopic nooks and crannies where organic matter can anchor and thrive. This is a crucial detail because an improper cleaning method - like using excessively high pressure - can blast away the surface layer of the concrete, creating even more pitting and making it more susceptible to future algae infestations. It’s a common mistake made by inexperienced operators, and it ultimately shortens the lifespan of the concrete.
My assessment concluded that a simple pressure wash would be insufficient. It might remove the surface layer of green, but it wouldn't kill the organisms at their root. Within months, the problem would return. To deliver a lasting solution for our client, the team at Old World Building Services Of Arkansas LLC would need to employ a multi-step process that focused on both cleaning and sanitizing the surface.
Our Solution
With the assessment complete, I developed a comprehensive action plan, which I reviewed with the property manager. They appreciated the detailed approach and gave us the green light to proceed. Our goal was twofold: restore the safety and appearance of the walkways, and do so with minimal disruption to their daily business operations.
Our three-person crew from Old World Building Services Of Arkansas LLC arrived the following Monday morning to begin the project. Our process is standardized for safety and efficiency:
- Step 1: Site Preparation and Safety: Before any equipment was started, we cordoned off the work areas using professional caution tape and prominent signage. We created a clear, alternative path for employees and visitors to access the building, ensuring pedestrian traffic could continue safely. Protecting the surrounding landscaping was also a priority; we thoroughly rinsed all nearby plants and shrubs with fresh water before, during, and after the chemical application to prevent any damage.
- Step 2: Pre-Treatment Application: This is the most critical step for long-term results. We used a low-pressure applicator to apply a proprietary, eco-friendly algaecide solution to all the concrete surfaces. This specialized detergent penetrates deep into the pores of the concrete to kill the algae, mold, and mildew at a biological level. We let the solution dwell for about 15-20 minutes, allowing it to break down the organic matter from the inside out. You could literally see the green film begin to dissolve and lift from the surface.
- Step 3: Professional Surface Cleaning: Once the pre-treatment had done its work, we brought out our commercial-grade equipment. For the large, flat areas, we used 24-inch surface cleaners. These machines look like oversized floor buffers and are essential for achieving consistent, professional Argenta pressure washing results. They distribute the water pressure evenly across the surface, preventing the ugly “zebra stripes” or etching that can occur when using only a pressure washing wand. We set our machines to approximately 2,800 PSI - a pressure carefully calibrated to be strong enough to rinse away the dead algae and grime without harming the aged concrete. For edges, corners, and stairs, our technicians used wands with fan-pattern nozzles for precise, detailed cleaning.
The entire project was completed in a single workday, allowing the business to resume normal operations the very next morning without interruption.
The Results
The transformation was dramatic and immediate. The once-hazardous, dark green walkways were restored to their original bright, clean state. The patio cleaning after heavy rain Arkansas was a complete success. The aggregate in the concrete was visible again, and the entire property felt brighter and more welcoming. The property manager was ecstatic, stating that the curb appeal had improved tenfold.
More importantly, the safety issue was completely resolved. The slickness was gone, replaced by the natural, gritty texture of clean concrete. The client expressed immense relief knowing their employees and visitors were no longer at risk of a slip-and-fall accident. The commercial walkway pressure washing results spoke for themselves - not just in appearance, but in tangible safety.
By using our pre-treatment method, the team at Old World Building Services Of Arkansas LLC not only cleaned the surface but also sanitized it, which helps inhibit rapid regrowth of organic matter. This means the client will enjoy a cleaner, safer property for much longer than if they had opted for a simple water-blasting service. It’s this commitment to providing long-term value that sets Old World Building Services Of Arkansas LLC apart.
This project in Argenta was a perfect example of how the right expertise and equipment can solve a problem that goes far beyond simple aesthetics. We didn't just clean a sidewalk; we restored a safe environment for a local business.
Ready for your own Old World Building Services Of Arkansas LLC experience? Contact us today for a free inspection.