Spider Exterminator Cost: 2026 Pricing Guide
Last updated: March 3, 2026
Spider exterminator costs range from $100 to $300 for a one-time treatment, with the national average around $175. Ongoing pest control plans that include spider treatment cost $40 to $70 per monthly visit. The total cost depends on the spider species, treatment method, home size, and whether the spiders are venomous.
This guide breaks down spider extermination costs by species, treatment method, and service type so you know what to expect before hiring a professional. For a broader look at pest control pricing, see our pest control cost guide.
Cost by Spider Type
The spider species determines the treatment approach and cost. Venomous spiders require more thorough treatment, including inspection of hiding spots and often multiple follow-up visits.
| Spider Type | Treatment Cost | Venomous? | Notes |
|---|---|---|---|
| Common house spiders | $100 – $200 | No | Standard perimeter and interior spray treatment |
| Wolf spiders | $100 – $200 | No | Ground-level treatment, often enter through gaps under doors |
| Hobo spiders | $125 – $250 | Low risk | Common in Pacific Northwest basements and ground levels |
| Black widows | $150 – $300 | Yes | Thorough treatment of garages, sheds, crawl spaces, and outdoor structures |
| Brown recluse | $150 – $300 | Yes | Most intensive treatment; requires inspection of storage areas, wall voids, attics |
Brown recluse and black widow treatments cost more because these spiders hide in hard-to-reach areas (wall voids, cluttered storage spaces, behind furniture) and their presence requires a more thorough inspection and treatment process. Multiple visits are often recommended for venomous spider infestations.
Cost by Treatment Method
| Method | Cost | How It Works |
|---|---|---|
| Residual spray (interior + exterior) | $100 – $250 | Liquid insecticide applied along baseboards, entry points, and the home perimeter. Kills on contact and continues working for 4-8 weeks. |
| Insecticidal dust | $125 – $275 | Applied into wall voids, attic spaces, and crevices using a duster. Especially effective for brown recluse. Lasts 6-12 months. |
| Web removal + spray | $100 – $200 | Physical removal of webs plus residual spray. Removes egg sacs and discourages rebuilding. |
| Exclusion sealing | $150 – $400 | Sealing gaps around doors, windows, pipes, and vents. Prevents entry rather than treating after the fact. |
Most professional treatments combine two or more methods. A typical visit includes perimeter spray, interior spray along baseboards and corners, web removal, and dust application in key areas. Exclusion is usually recommended as an add-on for long-term prevention.
One-Time vs Ongoing Treatment Costs
| Service Type | Cost | Best For |
|---|---|---|
| One-time treatment | $100 – $300 | Occasional spider sightings, seasonal issues |
| Monthly plan | $40 – $70/visit | Venomous spiders, heavy infestations, ongoing prevention |
| Quarterly plan | $100 – $300/visit | Moderate spider pressure, general pest prevention |
Most pest control plans include spider treatment as part of a general pest control service. You do not typically need a spider-only plan. A standard quarterly plan covers spiders along with ants, cockroaches, and other common pests for the same price.
Cost Factors
- Spider species. Venomous spider treatments (brown recluse, black widow) cost 25% to 50% more than treatments for non-venomous species due to the extra thoroughness required.
- Home size. A larger home requires more product and more time. Homes over 2,500 square feet typically cost $25 to $75 more than smaller homes.
- Infestation severity. Seeing one or two spiders is normal. Finding dozens, multiple egg sacs, or extensive webbing indicates a larger population that requires more treatment.
- Location. Spiders in living spaces are easier to treat than those in attics, crawl spaces, or wall voids. Harder-to-reach infestations cost more.
- Geography. Brown recluse are concentrated in the central and southern U.S. Black widows are found in the South, West, and Southwest. Hobo spiders are common in the Pacific Northwest. Treatment demand and pricing reflect local species.
DIY vs Professional Spider Control
| Factor | DIY | Professional |
|---|---|---|
| Cost | $10 – $50 | $100 – $300 |
| Effectiveness | Moderate for non-venomous species | High for all species |
| Duration | 2 – 4 weeks | 4 – 8 weeks |
| Products | Retail sprays, glue traps, essential oils | Professional-grade residual sprays, dust, exclusion |
DIY spider control (retail sprays, glue traps, web removal) works well for occasional non-venomous spiders. Remove webs regularly, seal obvious entry points, reduce outdoor lighting (which attracts insects that spiders eat), and keep storage areas decluttered.
Professional treatment is recommended when you find venomous spiders, have a persistent problem despite DIY efforts, or see large numbers of spiders. Brown recluse infestations in particular require professional treatment because these spiders hide deep in wall voids and storage areas where consumer products cannot reach. For more on when professional help makes sense, see our guide on when to call an exterminator.
When Spider Control Is Medically Necessary
Most spiders are harmless and even beneficial (they eat mosquitoes, flies, and other pests). However, two species in the U.S. are medically significant:
- Brown recluse. Found primarily in the central and southern U.S. (Missouri, Kansas, Oklahoma, Texas, Arkansas, and surrounding states). Bites can cause necrotic skin lesions that require medical treatment. Brown recluse are reclusive and hide in undisturbed areas like closets, storage boxes, and behind furniture.
- Black widow. Found across the southern, western, and southwestern U.S. Bites cause severe pain, muscle cramps, and in rare cases require emergency medical attention. Black widows build messy webs in dark, sheltered areas like garages, sheds, and woodpiles.
If you find either of these species in your home, professional treatment is strongly recommended. Do not attempt to handle or relocate them. If bitten, seek medical attention promptly.
For a comparison of costs across all pest types, see our pest control cost guide. For ant-specific pricing, see our ant exterminator cost guide.
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