Close every gap a rat can squeeze through
Gnawproof finds and seals the openings rats and mice use to get into older homes, from foundation vents to the roofline. We're opening bookings soon.
Sealing packages expected from $295
Free to join. Serving 10 neighborhoods in Portland.
Where rats get into Portland homes
A rat fits through a gap the size of a quarter. These are the openings we check first.
- Foundation ventsRusted or torn vent screens on older crawlspaces
- Pipe and wire gapsWhere plumbing, gas and cable lines enter the house
- Crawlspace doorWarped access doors that no longer close flush
- Garage door cornersWorn bottom seals and gaps at the side tracks
- Roofline and attic ventsGaps under eaves where branches touch the roof
What we'll do
- Inspection
- A crawlspace-to-roofline walk-through that maps every gap a rat or mouse can fit through.
- Seal and screen
- Gaps closed with steel mesh, metal flashing and vent screens, not foam a rat can chew.
- Trapping and follow-up
- Snap traps set and checked until activity stops.
- Crawlspace check-ups
- A visit every quarter to check seals, screens and the vapor barrier.
How it works
- 1
Join the list
Tell us where you live and what you're seeing. It takes a minute.
- 2
We open booking
We're finishing state licensing. You'll hear from us first when booking opens.
- 3
Book an inspection
Waitlist members pick their inspection date before anyone else.
Where we work
Lake Oswego, West Linn, the West Hills, Bethany, Irvington and close-in Southeast and Northeast Portland.
- 97034 Lake Oswego
- 97068 West Linn
- 97221 West Hills
- 97229 Bethany
- 97212 Irvington and Alameda
- 97219 Riverdale
- 97211 Northeast Portland
- 97213 Rose City Park and Laurelhurst
- 97214 Buckman and Sunnyside
- 97215 Mount Tabor
Questions
Why aren't you booking yet?
We're finishing state licensing before we take any jobs. Joining the list holds your place in line.
What does sealing cost?
It depends on your home's size, foundation type and how many openings we find. You'll get a fixed price after the inspection, before any work starts.
Will you keep coming back?
Only if you want to. After sealing, you can add a quarterly check-up of your crawlspace and seals.
I need help today. What should I do?
We're not booking yet, so please call another provider for urgent problems. Joining the list costs nothing.
Join the waitlist
Join the waitlist