---
title: "Pest-Blok"
description: "Pest-Blok exclusion material from Critter Wranglers in Knoxville, TN. Professional-grade animal and pest sealing for homes and businesses. Licensed, bonded, and locally owned. Call (865) 973-1095."
url: "https://critterwranglerstn.com/exclusion-repair/pest-blok"
date: "2026-06-01T12:57:45+00:00"
language: "en-GB"
---

# Pest-Blok

 Standard building materials aren't designed to keep out animals. Caulk, spray foam, and lightweight screening might seal against weather, but they won't stop a determined squirrel, raccoon, or rodent from chewing, clawing, or pushing its way through. That's why Critter Wranglers uses products like Pest-Blok — a professional-grade exclusion material specifically designed to seal out wildlife and pests in areas where traditional materials fail.

 [Schedule Your Free Inspection](https://critterwranglerstn.com/get-a-free-quote)

 ## Why Standard Materials Don't Hold Up

The most common reason homeowners call us for a repeat wildlife problem is that someone — often a previous contractor or the homeowner themselves — sealed an entry point with materials that aren't rated for animal resistance. Expanding foam, standard caulk, lightweight aluminum screening, and thin plastic vent covers can all be breached by squirrels, raccoons, rats, and mice with minimal effort.

Animals that have used an entry point before know exactly where it is and will work persistently to reopen it. The material sealing that gap needs to be tough enough to withstand gnawing, scratching, and pushing from animals that are highly motivated to get back in.

### Where We Use Pest-Blok

Pest-Blok is versatile and can be applied in areas where materials like metal flashing or hardware cloth aren't practical. Common applications include:

- Under metal roofing ridge caps
- Foundation vent guards
- Irregular gaps in foundations and masonry
- Spaces around vents and exhaust fans
- Cracks and openings in siding where traditional repair materials won't breathe properly or allow drainage
- Entry points where a durable, animal-resistant seal is needed

![Pest-Blok exclusion material installation by Critter Wranglers](https://critterwranglerstn.com/images/gutter-blok.jpg)

 ## Part of a Complete Exclusion Solution

Pest-Blok isn't a standalone product you apply and hope for the best. It's part of a professional exclusion strategy that starts with a thorough inspection, identifies every entry point and vulnerability on your home, and addresses each one with the appropriate material and method. The right material in the wrong location won't hold. The right material in the right location, installed by someone who understands how animals access structures, will.

Pest-Blok is just one tool in our exclusion toolkit. For some openings, we may use heavy-gauge screening, commercial-grade coated sheet metal, hardware cloth, and structural repairs as part of our comprehensive animal proofing and exclusion services. Our exclusion and repair services combine Pest-Blok products with structural repair, reinforced metal, and professional installation to create a complete barrier that holds up over time.

 ## How We Apply Pest-Blok

1### Full Inspection

We walk your entire property exterior to identify every current and potential entry point — including the ones that aren't obvious from the ground. Knowing where animals access the structure is the foundation of any effective exclusion plan.

2### Material Selection

Not every gap calls for the same solution. We determine which material is most appropriate for each opening — Pest-Blok, hardware cloth, metal flashing, or structural repair — based on the location, size, and species pressure involved.

3### Professional Installation

Pest-Blok is installed to manufacturer specifications and backed by our workmanship. Proper installation is what makes the difference between a seal that holds and one that fails within a season.

4### Documentation

We provide a record of every entry point sealed and the material used, along with any recommendations for areas that may need attention down the road.

![Pest-Blok installation by Critter Wranglers](https://critterwranglerstn.com/images/pest-blok.jpg)

 ## More Exclusion and Repair Services

Every component of our exclusion and repair offering works together as a complete solution.

[### Animal Proofing & Exclusion

Full exterior inspection and professional-grade sealing of every entry point.

 ](https://critterwranglerstn.com/exclusion-repair/animal-proofing-exclusion) [### Animal Damage Repair

Soffit, fascia, vent, ductwork, and siding repair after wildlife damage.

 ](https://critterwranglerstn.com/exclusion-repair/animal-damage-repair) [### Attic Restoration

Insulation removal, sanitation, and replacement after wildlife contamination.

 ](https://critterwranglerstn.com/exclusion-repair/attic-restoration) [### Dead Animal Removal

Location and removal of dead animals from walls, attics, crawlspaces, and more.

 ](https://critterwranglerstn.com/exclusion-repair/dead-animal-removal) [### Exclusion & Repair Overview

See the full picture of how our exclusion and repair services work together.

 ](https://critterwranglerstn.com/exclusion-repair/exclusion-repair)

 ## Contact Critter Wranglers

---

Critter Wranglers is locally owned and operated, licensed by the Tennessee Department of Agriculture, and fully bonded and insured. If you've had wildlife in your home before, or if you want to prevent it from happening in the first place, we can assess your property and seal it properly.

Contact us today to schedule your free inspection, or give us a call at (865) 973-1095.

[Contact Us](https://critterwranglerstn.com/contact-us) [865-973-1095](tel:8659731095)

![Critter Wranglers technician with service van](https://critterwranglerstn.com/images/critter-truck-1.jpg)

 ## Frequently Asked Questions

### [Can I buy Pest-Blok and apply it myself? ](#rpc-faq-1)

Pest-Blok is most effective when applied as part of a professional exclusion plan. Knowing which entry points to seal, what materials to use in each location, and how to apply them correctly is what makes the difference between a repair that holds and one that fails. We recommend having our technicians handle the assessment and installation.

### [Is Pest-Blok safe for use around my home? ](#rpc-faq-2)

Yes. Pest-Blok is designed for residential and commercial applications and is safe for use around homes with children and pets.

### [How long does Pest-Blok last? ](#rpc-faq-3)

When properly installed, Pest-Blok provides long-lasting protection. It's designed to withstand animal pressure, weather exposure, and temperature changes over time. We stand behind our exclusion work and will address any issues within the warranty period.

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