Cost Breakdown
| Item | Low | Average | High |
|---|---|---|---|
| Full Exterior Exclusion — Standard Home Complete sealing of all identified entry points on a standard single-story or two-story home (under 2,500 sq ft). Includes foundation gaps, utility penetrations, pipe chases, soffit gaps, roof-to-wall junctions, garage door seals, dryer vents, and crawl space vents. Typically 15–30 entry points. Uses rodent-proof materials: steel wool, copper mesh, metal kick plates, hardware cloth, and concrete patch. | $1,500 | $2,500 | $4,000 |
| Full Exterior Exclusion — Large or Complex Home Exclusion for homes over 2,500 sq ft, homes with complex rooflines, multiple additions, stone foundations, or heavy landscaping that creates access challenges. These homes typically have 30–50+ entry points and require more materials, more ladder/roof work, and more labor hours. | $3,000 | $4,500 | $6,000 |
| Partial Exclusion (targeted areas only) Sealing entry points in a specific area — such as the garage, crawl space, or one side of the foundation — rather than the full home. Less expensive but also less effective, since rodents will find alternate entry points. Appropriate only when the full home has already been partially excluded or when budget requires phased work. | $500 | $1,000 | $2,000 |
| Exclusion + Active Trapping Program (bundled) Most exclusion projects include concurrent trapping to remove rodents already inside the home before or during the sealing process. The bundled approach ensures you're not sealing rodents inside the walls. Includes initial trap placement, 3–5 follow-up trap check visits, and full exclusion work. Usually includes a 1–3 year warranty. | $2,000 | $3,500 | $5,500 |
| Crawl Space Exclusion and Screening Dedicated crawl space work: screening all crawl space vents with 1/4-inch hardware cloth, sealing pipe penetrations through the crawl space walls, installing door sweeps or replacing crawl space access doors, and sealing gaps at the mudsill/foundation junction. Crawl spaces are the most common rodent entry zone. | $400 | $800 | $1,500 |
| Annual Warranty Renewal (after initial warranty period) After the initial warranty period (1–3 years included with the exclusion work), many companies offer annual renewal. This covers inspections and re-sealing of any points that have degraded or been breached. Maintains the guarantee that rodents won't re-enter. | $150 | $250 | $400 |
Average Total Cost: $2,500–$3,500 for a standard home; $3,500–$5,500 bundled with trapping
Factors That Impact Cost
Home Size and Complexity
Larger homes have more linear feet of foundation, more utility penetrations, more roof-to-wall junctions, and more potential entry points. Complex rooflines (dormers, multiple ridgelines, valleys) create more gaps at intersections. Homes with additions often have poorly sealed junctions between the original structure and the addition — a common rodent highway.
Number of Entry Points
The core variable. A well-maintained newer home might have 10–15 entry points to seal. An older home with deferred maintenance, settling cracks, deteriorating siding, and multiple utility additions might have 40–50+. Each entry point requires individual assessment and material-specific sealing. More points means more materials and more labor hours.
Home Age and Construction Type
Older homes (pre-1970) with stone foundations, balloon framing, or lap siding present significantly more entry points and more complex sealing challenges. Stone foundations have gaps between every stone. Balloon framing has open wall cavities from foundation to attic. These homes cost 30–50% more to exclude than modern construction.
Roof and Upper-Level Access
Entry points at the roofline (soffit gaps, roof-to-wall junctions, gable vents, plumbing vent boots) require ladder or roof work. Multi-story homes and homes with steep roofs cost more for upper-level exclusion work due to safety equipment, time, and difficulty. Some companies charge separately for roof-level work.
Materials Used
Professional exclusion uses durable materials: galvanized steel mesh, copper wool (doesn't rust), metal kick plates, aluminum flashing, and concrete patch. Material costs are typically $200–$500 for a full-home job. The labor to install these materials correctly is the primary cost — materials represent only 10–20% of the total.
Money-Saving Tips
- Choose full exclusion over repeated trapping A single trapping service costs $200–$600 but doesn't prevent new rodents from entering. Many homeowners end up paying for 2–3 trapping rounds per year ($400–$1,800 annually) without ever solving the problem. A one-time exclusion investment of $1,500–$5,000 with a warranty eliminates the cycle. The exclusion pays for itself within 1–3 years compared to repeated trapping. Potential savings: $400–$1,800 per year in avoided repeat trapping
- Handle basic ground-level sealing yourself If you're comfortable with basic DIY, you can seal obvious ground-level entry points (gaps around water spigots, AC line penetrations, dryer vent gaps) with steel wool and caulk ($20–$50 in materials). Then hire a professional for the harder-to-reach and harder-to-identify points — roofline gaps, soffit junctions, and subtle foundation cracks. This hybrid approach can reduce the professional scope by 20–30%. Potential savings: $300–$800
- Schedule exclusion preventively before you have a problem Preventive exclusion (before rodents are inside) costs the same as reactive exclusion but doesn't require the added expense of trapping ($200–$600) and potential cleanup ($300–$2,000). If you live in an area with known rodent pressure, scheduling exclusion in late summer — before fall migration — prevents the infestation entirely. Potential savings: $200–$2,600 in trapping and cleanup costs
When to Splurge
- Invest in a 2–3 year warranty with annual inspections Additional cost: $100–$300 more than a basic 1-year warranty
- Include attic and crawl space cleanup if rodents were present Additional cost: $300–$2,000 depending on contamination severity