PRESS PHOTOS BY C. RICHARD CHARTRAND Window cleaning experts from Performance Services (PSI) Inc., Harrisburg, visit children at Lehigh Valley Reilly Children's Hospital at Lehigh Valley Hospital - Cedar Crest Nov. 15. ABOVE: The four superheroes scale down the wall for the children inside who they said were very excited and were knocking on the windows and waving as the heroes did their antics.

Spider-Man turns upside down to the delight of the children.

The superhero window washers visit Lehigh Valley Reilly Children's Hospital.

The superheroes take photos outside of the hospital Nov. 15.