If you’re dealing with a spider problem at home, expect to pay anywhere from $150 to $350 for a one-time extermination. For more serious infestations or long-term prevention, annual service contracts typically range from $400 to $1,000, depending on your home size and location.
The biggest factor driving cost is how severe the infestation is — a few spiders near the garage will be much cheaper to treat than a full-blown nest of webs, egg sacs, and spiderlings in your basement or attic. Ongoing pest issues that attract spiders, like roaches or flies, can also increase the cost and complexity of treatment.
Spiders may help control other bugs, but once they settle in your home, they can reproduce quickly and become a much bigger problem — especially dangerous species like black widows or brown recluses. Whether you’ve seen a few webs or full-blown activity, acting fast can save you money and stress down the line.
In this guide, we’ll break down the costs for different types of spider treatments, show you when to DIY and when to call a pro and explain what to expect from the extermination process. For professional assistance, we recommend Orkin, Terminix, and Aptive to get rid of spiders in and around your home.
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Average Cost and Price Ranges
Hiring a professional to remove spiders from your home typically costs between $150 and $350 for a one-time treatment. If you need ongoing service, monthly or annual pest control plans can range from $400 to over $1,000 per year, depending on your home size and the number of visits required.
Here’s a quick cost breakdown by service type:
| Service Type | What’s Included | Estimated Cost |
|---|---|---|
| One-Time Treatment | Inspection, treatment, light follow-up | $150–$350 |
| Monthly Service Plan | Initial treatment + monthly visits | $600–$900 annually |
| Quarterly Plan | Four seasonal visits per year | $400–$700 annually |
| Annual Treatment | One thorough visit per year | $125–$500 |
Basic treatments for light infestations typically cost less, while larger or recurring infestations (especially those involving venomous spiders) will push your costs higher. If prevention is your goal, a recurring service plan is the best bet.
What Influences Cost?
Several variables impact how much you’ll pay for professional spider control. The biggest drivers are infestation severity, treatment frequency, and the size and layout of your home. Here’s a closer look at each:
Severity of Infestation
The more spiders — and the more active webs and egg sacs — the more labor, time, and product it takes to get things under control. A light infestation with a few cellar spiders in the corners may only need a quick spot treatment. But if your attic or crawl space is loaded with cobwebs, dozens of visible spiders, and egg sacs, expect the exterminator to spend more time inspecting, applying chemicals, and de-webbing.
Each spider egg sac can contain 30 to 100 baby spiders. So when pros see multiple sacs, they know they’re dealing with a fast-growing problem. That escalates the cost.
Frequency of Treatment
A single visit is the cheapest option, but it’s often not enough. If spiders are coming back — or if you’re dealing with recurring food source pests like flies, ants, or roaches — you’ll likely need monthly or quarterly visits to break the cycle.
Preventive plans can seem pricey upfront (typically $400–$900 per year), but they’re worth it if you live in an area prone to spider activity or if your home has vulnerable areas like crawl spaces, basements, or gaps around doors and windows.
Square Footage and Home Layout
Larger homes cost more to treat because they simply require more product and time. A 3,000-square-foot house with high ceilings, a detached garage, and a finished basement will cost significantly more to inspect and treat than a 900-square-foot condo.
Layout matters too. Homes with lots of nooks — like attics, crawl spaces, basements, or utility rooms — are prime spider hiding zones. Pros need extra time to inspect and spray these areas thoroughly.
Type of Treatment
Most exterminators will use residual insecticides to kill spiders directly and reduce their food source by targeting other bugs. But in cases where homeowners want eco-friendly options — like essential oil sprays or physical exclusion methods (caulking, steel wool, etc.) — that may affect cost. Natural treatments usually require more frequent application to remain effective.
Chemical foggers and sprays are faster but can be overkill for minor issues. A good pro will tailor the treatment method to your situation, and you should always ask what they’re using — especially if you have pets, kids, or sensitivities.
Location
Spider extermination costs tend to be higher in cities or areas with a high cost of living, where labor and licensing expenses are steeper. You might pay $150 for a one-time treatment in the Midwest, but that same job could cost $300 or more in a metro area like Los Angeles or New York.
Some regions also have a higher presence of venomous spiders, like brown recluses or black widows. If those are common in your state, exterminators may recommend more aggressive or frequent treatment plans — and those carry a higher price tag.
Types of Spider Treatments
Not every spider problem needs the same approach. Depending on how bad the infestation is and whether you’re trying to eliminate spiders or prevent them from returning, exterminators will recommend different treatment types. Here’s what to expect:
Basic Reactive Treatment
This is your standard “get them out now” approach. If you’re seeing spiders in a few rooms or have found some webs, a pro will do a targeted pesticide spray along baseboards, ceilings, attic access points, and crawl spaces.
- Best for: Light to moderate infestations
- Cost: Typically $150 to $300
- What it includes: One-time spray of residual insecticide to kill spiders and reduce their food source
This is the most common treatment and usually enough if you catch the problem early.
Preventive Treatment Plans
If you want to stop spiders from coming back — or live in an area where they’re a regular issue — a quarterly or annual plan is your best defense. These plans include scheduled treatments every few months, plus sealing up gaps and applying insecticide around key entry points like windows, door frames, and foundation cracks.
- Best for: Homes with recurring pest problems or past spider issues
- Cost: $500 to $1,000+ per year, depending on property size and visit frequency
- What it includes: Scheduled treatments, entry-point sealing (caulk or steel wool), and exterior barrier sprays
Some companies also offer natural spider deterrents like peppermint oil sprays or other essential oils. These are safe for pets and kids but need more frequent application and may not be as effective in heavy infestations.
Ongoing Monthly Service
This is ideal for folks who’ve had spider issues more than once and want the peace of mind of regular visits. Most companies will do a full treatment on the first visit, then come back each month to inspect, re-treat, and deweb problem areas.
- Best for: Persistent pest problems or homes near woods, water, or fields
- Cost: Initial visit: $125–$300, then $50–$75/month
- What it includes: Monthly visits, active spider control, monitoring, and entry-point maintenance
One-Time Annual Visit
Some homeowners just want a yearly check-in — especially before spider season in spring or fall. While less comprehensive than a quarterly plan, it’s a good low-cost option if your home has few vulnerabilities.
- Best for: Low-risk homes or minor preventive maintenance
- Cost: $125 to $500
- What it includes: Inspection, single treatment, and basic recommendations
Signs & Causes of Infestation
Most homeowners don’t realize they have a spider infestation until the signs become obvious. A few spiders here and there are normal, but if you’re seeing any of the following, it’s time to take action:
- Multiple spiders in a short time — especially in the same areas like basements, attics, or garages
- Webs in corners, ceiling edges, or tucked-away spots
- Egg sacs — round, white pouches attached to webs or walls (each can hold 30–100 eggs)
- Shed spider skins, which look like translucent spider shells
- Spider bites, especially if they’re recurring and unexplained
- Other pests in the home, which may be attracting the spiders
Spiders usually show up where they can find food and shelter, so infestations often overlap with other pest problems like flies, roaches, ants, or moths.
What Causes a Spider Infestation?
Spiders don’t usually invade your home just for fun — they’re there because it offers food, warmth, and places to hide. Here are the most common causes:
- Cracks and gaps in doors, windows, siding, and foundation walls
- Insects inside your home, which give spiders a steady food source
- Cluttered areas like basements, attics, or garages — ideal nesting zones
- Bringing spiders in accidentally through boxes, firewood, or outdoor equipment
- Moist environments, such as leaky basements or laundry rooms, that attract bugs (and therefore, spiders)
If you’re not sealing up those entry points or clearing out web-prone areas, spiders will stick around and multiply.
Are Spiders Dangerous?
Most spiders in the U.S. are harmless and won’t bite unless provoked. That said, there are two types of spiders you really don’t want in your home:
- Black Widow — Recognizable by the red or orange hourglass on its abdomen, the black widow is found in most states except Alaska. Its bite isn’t usually fatal but can cause severe pain, cramping, and nausea. You’ll usually find them in dark, undisturbed areas like garages, sheds, and crawl spaces.
- Brown Recluse — Tan or brown with a violin-shaped mark on its back, this spider is common in the South and Midwest. Its bite can lead to open sores and tissue damage that sometimes require medical attention.
If you see either of these spiders — or aren’t sure what you’re dealing with — it’s best to call a pro. Better safe than sorry.
DIY vs. Hiring a Professional
If you’ve only spotted a spider or two, you might not need to bring in a pro just yet. For light spider activity, you can take matters into your own hands. Many homeowners start with a spider catcher — a long-handled tool that lets you grab and release spiders safely without getting too close.
Sealing up cracks around doors and windows using caulk or weatherstripping is also a smart move, as it blocks entry points. Some people also have success with natural deterrents like peppermint or tea tree oil sprays. Keeping your home tidy and vacuuming regularly helps remove webs and reduces insect activity that attracts spiders in the first place.
That said, DIY only goes so far. If you’re constantly seeing new webs, finding egg sacs, or getting bitten, the problem’s likely beyond what home remedies can handle. In those cases, it’s best to bring in a licensed exterminator.
Professionals have the experience and tools to track down hidden infestations, treat the source effectively, and deal with spiders in hard-to-reach places like crawl spaces, basements, or attic voids. If you’ve seen venomous spiders like brown recluses or black widows, or if you’ve tried DIY methods that haven’t worked, calling a pro is the smart — and safer — choice.
What is the Standard Spider Extermination Process?
A professional visit usually starts with a walkthrough and a few questions. The exterminator will ask where and when you’ve seen spiders and look for signs like webs, egg sacs, or other bugs that may be attracting them.
Next, they’ll inspect your home — especially basements, crawl spaces, and garages — to assess how widespread the problem is. Based on what they find, they’ll explain the treatment plan and whether one visit will be enough or if follow-ups are needed.
Before you agree to anything, ask about their licensing, treatment methods, and whether the products are safe for pets or kids. A good pro will walk you through pricing, how long the treatment will take, and if any kind of warranty is included.
Final Thoughts
Spiders might be helpful outdoors, but once they move into your home, they become a real problem — especially if they start breeding or you’re dealing with venomous types. The longer you wait, the worse it gets.
If you’ve seen webs, egg sacs, or multiple spiders in a short time, it’s smart to bring in a pro. A quick one-time treatment can handle minor issues, but for ongoing peace of mind, a preventive plan may be worth the investment.
Don’t wait until spiders take over your attic or basement. A quick inspection and treatment now can save you time, money, and a whole lot of stress later.
This site receives compensation from the companies featured in this listing, which may impact where and how products appear. This listing doesn’t feature all companies, products, or offers that may be available.
