Hire a professional for severe flea infestations

What to Do

If DIY treatment hasn't resolved the infestation after 4 weeks, or if fleas are present in multiple rooms throughout the house, hire a licensed pest control professional. Expect to pay $150-$400 for a full-home treatment. Most companies include a follow-up visit in the price.

Why It Works

Professionals use commercial-grade IGR and adulticide products with higher concentrations and longer residual activity than consumer sprays. They also have the experience to identify and treat areas homeowners miss — crawl spaces, between floor layers, and under heavy furniture.

Tips

• Ask if the treatment includes an IGR — some budget services only spray adulticide, which won't break the life cycle
• You'll still need to treat pets and maintain vacuuming after professional treatment
• A reputable company will tell you that seeing fleas for 1-2 weeks after treatment is normal and schedule a follow-up at the 2-week mark