This is tricky, because if you visit enough carpet cleaners you'll see quite the disparity in pricing, so allow me to explain it to give better clarity. General carpet cleaning pricing involves either pricing by the square foot or pricing by the room. Pricing the square foot can add up and be rather expensive. Then there's pricing by the room, which is a lot more transparent and affordable. TLC Carpet Care charges by the room. One thing to be careful of with really cheap deals on other websites is what they don't tell you what's included or what's not.