★ 4.9 on Google · 200+ reviews

Rodent proofing · Seattle & Puget Sound

Seal the house. Keep the rats out.

Trapping clears out the rodents you have. Sealing stops the next ones. We find every gap a rat or mouse can use, from the roof vents to the foundation, and close it with metal.

  • Every entry point found, photographed and sealed
  • Roofline, attic vents, crawl space and foundation
  • Licensed, bonded and insured in Washington
★★★★★Google reviews4.9 Kirkland · 5.0 Renton
BBB rating A+View profile
Puget Sound Energy Recommended Energy Professional
Sealing a rodent entry gap at the roofline with galvanized meshSealing a rodent entry gap at the roofline with galvanized mesh · Edmonds, WA
  • Free inspectionWith photos of everything we find
  • Licensed, bonded, insuredWashington # ATTICSI795QZ
  • Family-run and localKirkland and Renton offices
  • 4.9 to 5.0 on GoogleKirkland 4.9 · Renton 5.0

The problem

Rodents don't break in. They walk in.

A mouse can squeeze through a gap about the size of a dime. A rat needs a hole about the size of a quarter. Most houses have dozens of openings that size: a loose crawl space vent screen, the gap where a dryer vent leaves the wall, a corner of soffit that pulled away, the hole where the cable line comes through the siding. Rodents find these by smell and by feel, and they come back to the same ones night after night.

Rodent proofing, also called exclusion, means finding every one of those openings and closing it with material a rodent can't chew through. Spray foam alone doesn't count; rats chew right through it. We use metal mesh, hardware cloth and sheet metal sized to the gap, fastened so it stays put through a wet Puget Sound winter. Done well, it is the part of rodent work that keeps paying off for years.

Technician removing contaminated material from a crawl space
FIG. 01Technician removing contaminated material from a crawl space

Warning signs

Signs your house has open doors for rodents

You don't need to see a rat to know a house needs sealing. These are the clues we look for from the yard and the attic hatch.

  • SIGN 01

    Rodents keep coming back

    Traps catch a few, then a few more months later. That cycle means the entry points are still open. Trapping without sealing just resets the clock.

  • SIGN 02

    Damaged vent screens

    Crawl space and gable vents with rusted, bent or torn screens are a direct route inside. Older Seattle homes often still have the original screens.

  • SIGN 03

    Rub marks on siding or trim

    Rats leave greasy dark smudges where they squeeze through the same spot again and again. Look low near the foundation and high near the eaves.

  • SIGN 04

    Gaps around pipes and wires

    Hose bibs, AC lines, gas lines and cable entries often leave a ring of open space where they pass through the wall. Rodents follow them in.

  • SIGN 05

    Trees and ivy touching the roof

    Roof rats climb. Branches over the roof, ivy on the chimney or a fence that runs up to the eaves gives them a ladder to your attic vents.

  • SIGN 06

    Chewed edges on roof or soffit

    Fresh chew marks on soffit corners, fascia or the edges of roof vents mean something is working to widen an opening it already uses.

Proof of work

See the difference

Drag the slider to compare. Illustrations of typical results on homes like yours.

After: vent sealed with galvanized hardware clothBefore: torn foundation vent screenBeforeAfter
Before / after. After: vent sealed with galvanized hardware cloth · Issaquah, WA
After: roof-edge gap closed with metal flashingBefore: gap at the roof edge used by ratsBeforeAfter
Before / after. After: roof-edge gap closed with metal flashing · Lynnwood, WA

The job, step by step Lake Stevens, WA

Finding a chewed vent screenSTEP 01
Finding a chewed vent screen
Old screen removed and measuredSTEP 02
Old screen removed and measured
Fastening galvanized meshSTEP 03
Fastening galvanized mesh
Vent sealedSTEP 04
Vent sealed

What you get

What rodent proofing includes

Scope of work
InspectionRoof, attic, exterior walls, foundation and crawl space, with photos of every gap
Roof and attic ventsRoof vents, gable vents and plumbing stack gaps screened or sealed
Soffits and eavesGaps at soffit corners, fascia and eave returns closed with sheet metal
Crawl space ventsTorn or rusted screens replaced or backed with galvanized hardware cloth
Wall penetrationsPipe, wire, AC line and dryer vent gaps packed with metal mesh and sealed
FoundationGaps at the sill, access doors and crawl space hatches closed
MaterialsMetal mesh, hardware cloth and sheet metal; no foam-only patches
ReportBefore and after photos of each sealed spot, plus notes on anything left open

Diagram

Where rodents get into a Puget Sound home: roof vents, gutter gaps, chimney chase, garage door, pipe openings, foundation vents
  • 1Roof vents
  • 2Gutter gaps
  • 3Chimney chase
  • 4Garage door
  • 5Pipe openings
  • 6Foundation vents

Compare

Trapping alone vs. trapping plus sealing

Most homeowners try traps first. Here is why traps are only half the job.

FactorTrapping aloneTrapping plus sealing
Rodents inside nowCaught over timeCaught, then shut out
New rodents next seasonWalk in through the same gapsFind the gaps closed
Repeat visitsOngoing, every time activity returnsTaper off once activity stops
Damage to insulationKeeps building upStops once the house is sealed
What you seeTraps and catchesPhotos of every sealed gap

Pricing

What shapes the price

We quote after the inspection, once we've counted the openings. These are the things that move the number.

  • FACTOR 01

    Number of entry points

    A tight newer home might have a handful of gaps. An older house with many vents and penetrations can have far more.

  • FACTOR 02

    Roof height and pitch

    Steep roofs, second stories and tall gables take more setup and safety work to reach and seal properly.

  • FACTOR 03

    Vent count and condition

    Rusted crawl space vents or damaged roof vents may need full screen replacement rather than a simple patch.

  • FACTOR 04

    Active rodents inside

    If trapping has to happen first, those visits are part of the job before the final sealing.

  • FACTOR 05

    Cleanup needed afterward

    Droppings and nesting in the attic or crawl space can mean cleanup or insulation replacement, quoted separately.

Get a written estimate

We had a pretty bad rat problem in our attic. We heard noises every night. Guys from Super Attic Solutions came out and they trapped the rats and blocked all the holes that allowed the rats to get in. They were on time, professional and fairly priced.

★★★★★Anna D. · Yelp review

FAQ

Rodent proofing: questions we hear

Still unsure? Call (800) 674-4933 and talk it through with us.

What is rodent proofing?

Rodent proofing, or exclusion, is the work of finding every opening a rat or mouse can use to get into a house and closing it with material they can't chew through. It covers the roof, attic vents, soffits, siding penetrations, foundation and crawl space. It is the step that keeps rodents out after the ones inside have been trapped.

Can I just use spray foam or steel wool?

Spray foam alone doesn't stop rats; they chew through it quickly. Steel wool rusts in our wet climate and falls apart. We pack gaps with metal mesh, then seal over it, and use hardware cloth or sheet metal on larger openings. The goal is a repair that still holds after several winters of rain.

Will sealing block my attic ventilation?

It shouldn't, and we make sure it doesn't. Attic and crawl space vents need to move air or you get condensation and mold. We screen vents with metal mesh that lets air through and keeps rodents out. We seal gaps that were never meant to be open, like a pulled-away soffit corner.

Do you seal the house while rats are still inside?

No. Sealing a house with rodents still living in it can trap them in the walls or attic. They either chew a new way out or die where no one can reach them. We trap first, confirm activity has stopped, then finish the sealing.

Do you seal crawl spaces too?

Yes. Crawl space rodent proofing is a big part of what we do, especially on older Seattle homes. We replace or back damaged foundation vent screens, close gaps at the sill and access door, and seal pipe and drain entries. If the vapor barrier is torn up from rodent traffic, we can quote that as well.

How do I know every gap was sealed?

You get photos. During the inspection we photograph each opening we find, and after sealing we photograph the same spots again. You can see the full list and the fix for each one. If we find something outside our scope, like a damaged side sewer, we tell you who to call.

Related services

Often done together

Rodent removal services
Rodents & pests

Rodent removal services

We trap the rats and mice living in your home, remove nests and droppings, then seal the way in.

Learn more →
Rodent control
Rodents & pests

Rodent control

A trapping, monitoring and sealing program that runs until rodent activity in your home stops.

Learn more →
Attic decontamination
Attic services

Attic decontamination

Biohazard cleanup after rodents and animals: waste removed, framing disinfected, odor treated at the source.

Learn more →

Let's see what's going on up there.

Book a free inspection. We'll photograph your attic and crawl space and walk you through what we find, before you decide anything.

CallFree estimate

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Thank you. We've got it.

We'll call you to book your free inspection.

  1. 01We call to set a time that works for you.
  2. 02We inspect and photograph your attic and crawl space.
  3. 03You get a clear written estimate. No obligation.

Urgent? Call (800) 674-4933