(Also known as rodent-exclusion or build-out)

Someplace, somewhere, there is a hole or crack or crevice that allows entry for rats or mice. Rodent control can't be effective without sealing off these gaps. This work requires tedious attention to detail because their routes are often tricky to fully locate. This is where the art and science of Cascade's rodent-proofing comes in.

Rats and mice get into your home interior, attic, or crawlspace through entry points. Because their skulls are flexible they can get through tiny openings.

  • Small rats can get through a half-inch hole!
  • Mice can squeeze through a quarter-inch gap!

Holes, gaps, and cracks can be at your roof line, in the house siding, under doors, through garage areas, around crawlspace vents, and even tunnels burrowed through soil under your foundation.

Cascade performs a thorough inspection to find these access points (as well as food sources, nesting sites, and rodent runways and paths). We then provide you with a detailed Rodent Exclusion Report.

We at Cascade take pride in unraveling the mystery of where rodents are getting into your home. We use our extensive training in rat and mouse biology to think like a rat in order to catch a rat.

Cascade's Rodent Exclusion works for you

While you, the homeowner, can handle occasional problems, many aspects of exclusion work require Cascade's combination of rodent expertise and specialized contracting resources.

Cascade can do these tasks for you:

  • Repair gaps in crawlspace or attic vents.
  • Close gaps where plumbing enters the home from the crawlspace.
  • Screen or install flashing at adjoining openings on the roof.
  • Seal gaps around garage doors.
  • Cut back vegetation from your house (harborage).
  • Trim tree branches from the roof (rodents climb them up into your home).
  • Repair foundation gaps around sewer drains (rats tunnel through the sewer exit gap).
  • Remedy crevices around the crawlspace access door.
  • ...and dozens more.

Contact Cascade today! We can inspect your home and do rodent exclusion work before you have a rodent problem.

Under kitchen sink flashing installed to stop rodent entry from wall void around plumbing.
   Exclusion report.   Rat burrowing under house foundation.
Under kitchen sink flashing installed to stop rodent entry from wall void around plumbing.

   Exclusion report.   Rat burrowing under house foundation.
Drain with screen over it to deny access to rats.
   Crawlspace drains exposed, allowing rats access.   Drain with screen over it to deny access to rats.
Drain with screen over it to deny access to rats.

   Crawlspace drains exposed, allowing rats access.   Drain with screen over it to deny access to rats.
Cascade provides pest control for carpenter ants, mouse/mice problems, beetles, moths, flies, termites, wasps, yellow jackets and hornets. We also remediate attic and crawlspace problems such as decontamination and insulation removal & repair after rodents have soiled and damaged those areas.
Cascade pest control is present in Greater Seattle, the Eastside, King and Snohomish counties.