Rat Extermination Services

in Sonoma, Marin & Napa Counties

We proudly provide rat extermination in:

Santa Rosa, Petaluma, Rohnert Park, Novato, San Rafael, Napa, St. Helena, Sonoma, Healdsburg, Sebastopol, Fairfax, and all surrounding areas.

If you're hearing scratching at night, finding droppings, or smelling something foul—there’s a good chance you have rats. Our expert team of Rat Detectives delivers fast, humane rat extermination services

across Sonoma County, Marin County, and Napa County. From Santa Rosa to San Rafael to Napa, we stop rats at the source and keep them from coming back.

What is Rat Extermination?

Rat extermination is the process of identifying, eliminating, and preventing rat infestations in residential and commercial properties. We don’t just set traps—we identify how the rats are getting in and address the root cause.

Signs You Have a Rat Problem

  • Scratching or scurrying sounds in walls or ceilings

  • Droppings near food or in cabinets

  • Chewed wires, insulation, or baseboards

  • Nesting materials like shredded paper or fabric

  • Grease marks along walls

  • Unusual pet behavior

Why You Should Act Quickly

If left unchecked, rats can:

  • Reproduce VERY quickly!

  • Chew electrical wiring (fire risk)

  • Contaminate food

  • Spread diseases (like leptospirosis & hantavirus)

  • Destroy insulation and drywall

Why Choose Rat Exclusion Service (RES)?

  • Locally owned & operated

  • 100% humane and eco-safe methods

  • No poisons or harmful chemicals

  • Guaranteed exclusion with every service

  • 5-star rated across Sonoma, Marin and Napa Counties

Areas We Serve in Northern California

We proudly provide rat extermination in:


Petaluma, Santa Rosa, Rohnert Park, San Rafael, Novato, Sebastopol, Cotati, Fairfax, San Anselmo, Healdsburg, and surrounding areas.

If you have questions before booking, you can call "Ara" - our 24/7 Virtual Assistant by Clicking the Button Below

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FAQS

How does your service work? 

We offer a free estimate and service in Sonoma, Napa, North and West Marin Counties. Our expert Rat Detective will find the entry points of rats and mice into your home or structure. We'll catch what’s there and then seal them out. We guarantee our work for 2 years. RES is 100% poison-free and does not use any rodenticides or pesticides.

What do you do if a rat is in between the walls or ceiling soffits? 

We use an attractant to lure rats into our traps which are placed in the active primary traffic areas such as the crawl space and attic. Rats look for a food source and don’t stay in one localized place for long periods. 

What happens when there is activity after the 4 weeks?

RES service will be extended until there is no more activity. Our rat detectives will be executing perimeter checks during each service check. If there is any breach in RES work, or a new entry point is found, it can be addressed.

How can we prevent rats from getting on the roof? 

Rats can jump up to 3 feet. RES recommends having any foliage or branches cut back 4-5 feet to prevent roof access. The use of gutter guards can be helpful too.  

Do you offer a clean up service? 

RES focuses mainly on exclusion work and can clean droppings on hard surfaces. We use a shop vac with a HEPA filter. RES can recommend a company that offers a more extensive crawlspace or attic cleanup.

Do you provide exclusion service for animals other than rats or mice? 

No. RES service for rats and mice only. For any other animals we recommend contacting Sonoma Wildlife Rescue, Wildcare or a local wild animal service provider in your area. 

Do you remove dead rodents from HVAC ducts?

No. We recommend a local HVAC company

How does payment work? 

The initial estimate is provided at no charge. After the estimate and invoice approval, you can pay using cash, check, or credit card payments. We can split the payments in 2. We ask for a minimum of half up front when we begin service and the remainder balance due by the 3rd week of service.