Commercial flooring help

I’d love to help. Assuming that “they” are carpets and “less dirty” is also the carpets…
My experience with a “Pile Brush” would help a lot with pad reduction and better carpet appearance and extension in carpet life expectancy.
How often are they cleaning the “High Traffic – Freeway” areas? Is this a known retailer?

If we are talking pads, try washing pads with “color fast” bleach.

I agree with Mark (and Gordon too). It is quicker to remove large volumes of soil via hot water extraction, and then the agitation of the pad following will remove the rest (plus moisture to prevent wicking). Also, I have a few large piles of old pads that I keep around for just these types of jobs. I use the old pads for the first 2-5 passes, and then can finish with a better pad without ruining it. That said, if they become a repeat customer and you have to use the dual method every time you clean, you really need to sell them on getting those extreme high traffic areas on a maintenance plan where you are in the building cleaning those areas more often. Also, remember to price accordingly for whatever you are doing. Restorative cleaning costs a lot more than maintenance cleaning. I can charge $.07-.15/sq ft each time for maintenance cleaning (where I’m typically doing 1-2 passes per area and no extraction), but for restorative you’re looking at $.25-.35/sq ft for commercial (and I have to do as many passes/extraction as it takes to get it clean). So, I can potentially clean those high traffic areas 3x on a maintenance plan for the same price as just doing 1 restorative, and I will possibly spend less time total on the 3 visits combined vs the one. Plus, I have 3 jobs on the schedule instead of 1, which helps if you have employees during slow months. That is a win win for everyone. Just my 2 cents.