If the washer and dryer are in a separate room, covering the door opening provides a simple way to disguise the space. Measure the door opening to determine the type of door that will work. A regular hinged door is an option for many openings. If you have a larger opening, consider sliding or bifold doors. Another option is a curtain to cover the entryway into the laundry room. If the laundry room is part of another space, an option is to hang a curtain divider to cover up the laundry area. You are able to easily slide the curtain out of the way to do the laundry and slide it back when you want the laundry area hidden.
A countertop is another way to disguise your washer and dryer while adding a functional surface in the room. Mount the countertop so it runs just above the washer and dryer, leaving enough clearance for venting and access to the machines. This option only works for front-loading machines, as the countertop would prevent the lid of a traditional washer from opening. To further disguise the washer and dryer, attach large cabinet doors or curtains in front of the machines hanging below the countertop.
Built-in shelving and cabinetry gives the laundry room a finished look similar to the kitchen. The shelving provides a storage area for detergent and other laundry room staples so they aren't lying around the room in the open. Use the wall above the washer and dryer as the main location for the built-in cabinetry. If the room is large enough, add cabinetry and shelving on either side of the machines.
The positioning of the washer and dryer plays a role in how well you are able to disguise the laundry room. If possible, set up the washer and dryer so they aren't directly in the line of sight when you walk in the area. If the washer and dryer are in the kitchen or another room, move them to one end so they are easier to hide with curtains.