Working at We use only environmentally friendly cleaning products, never sacrificing quality. Our carpet cleaning equipment meets the highest standards and provides quality carpet and upholstery cleaning without harsh chemical solvents. David Pye uses environmentally friendly soaps and fabric whiteners to achieve polished perfection in every job. Even the most urgent and demanding jobs, such as urine, blood, and red wine stains, are tackled with green and clean products, leaving no mark on your carpet or the environment.