Washing Linens

• Baking soda helps boost laundry detergent to remove urine stains and pet odors from washable fabrics, according to the Humane Society of America. Add a 1-lb. box of baking soda to the laundry detergent. Machine wash and line dry. The heat of the dryer will permanently set in urine residue. Rewash if necessary.
  
  

Carpets

• Vinegar helps treat fresh and mild smelling pet stains in carpets, according to the This Old House website. Use newspapers and paper towels to soak up any wet pet urine. Use a wet vac machine to suck stains from deep within carpet fibers, but avoid using a steam cleaning machine, which may set in stains, recommends the Humane Society. For heavily soiled carpets, use a strong pet odor neutralizing product.
  
  

Floors and Walls

• Pet odors may seep into drywall, wooden floors and other porous surfaces. Treat this problem by painting walls with a fast-drying sealer, suggests the This Old House website. If the sealer does not block the smell, contact an environmental clean-up firm for professional cleaning.