The answer to 'my upholstery is filthy' is that there are several common causes, including pet hair, spills, and general dirt and grime buildup over time. Symptoms can include stains, odors, and a worn or matted appearance. To address this, you'll want to try a DIY upholstery cleaning first, but for heavily soiled or damaged upholstery, it's best to call in a professional cleaning service.
For DIY cleaning, start by thoroughly vacuuming the upholstery to remove any loose dirt and debris. You can then use an upholstery cleaner or mild soap and water to spot clean any stains. Be sure to test the cleaning solution in an inconspicuous area first. Allow the upholstery to fully dry before using it again. If the upholstery is still looking dingy or the stains won't come out, it's time to call in a professional upholstery cleaning service.