Why Scorpions Are Invading Arizona Homes In 2025 & Why Typical Pest Control & Sealing Fail

We’re seeing it again this year: scorpions showing up inside Arizona homes earlier, more frequently, and in places homeowners least expect. For many, it’s the first time they’ve ever encountered a scorpion indoors. For others, it’s another season of wondering why their treatments didn’t last.

Homeowners across the Valley are asking the same question: Why does this keep happening, and why doesn’t what we’ve already done seem to work?

2025 continues a multi-year pattern of hotter, drier conditions across Arizona, with brief humidity swings that trigger scorpion activity. We’ve seen warmer-than-normal overnight temperatures that keep scorpions active for more months of the year, shortening their typical dormancy.

These fluctuations in temperature and moisture are enough to drive scorpions to seek out stable microclimates. And your home provides exactly that: cooler, more humid, and protected from predators. But while the weather may push them closer, it’s your home’s structure that ultimately lets them inside.

Most homeowners never hear this from pest control companies: your house isn’t just one solid structure. It’s a complex web of framing seams, foundation joints, plumbing penetrations, recessed light can gaps, foam and insulation voids, attic breaches, and more.

A typical Arizona home has hundreds of micro-air leaks that collectively create two critical conditions:

• First, pressure-driven pathways that actually pull outside air, and the pests in it, indoors.
• Second, cool, moist crevices that scorpions can exploit, completely bypassing doors and windows.

This is why even diligent homeowners who maintain door sweeps, window screens, and tidy yards still see scorpions inside. The pests are simply following physics: airflow, temperature differences, and humidity gradients lead them right through these micro-gaps.

Your yard’s design, gravel beds, drip irrigation lines, decorative boulders, shaded planters, all help create microclimates that support populations of crickets, roaches, and other insects. That indirectly sustains scorpion populations around your property.

But we don’t advocate tearing out landscaping. Instead, we help identify how your outdoor environment interacts with your home’s vulnerabilities. This means creating prescriptive strategies, not generic recommendations, so you can keep the yard you love while minimizing the factors that draw pests closer.

Spraying: Short-Lived Chemistry Against a Long-Term Problem

Most homeowners are familiar with traditional pest control: technicians spraying the perimeter, treating block walls, and applying residual products. The challenge is that in Arizona’s intense heat, many of these pesticides break down quickly. By the time you believe you’re protected, much of the active ingredient may already be degraded, especially on surfaces exposed to direct sunlight. This can occur within minutes of spraying on some days if not compensated for.

This is particularly true on exterior block fences, which soak up extreme temperatures and absorb the product. It’s one reason why general perimeter spraying does little to stop scorpions.

Many pest control companies will offer what they call “sealing” as an added service. This often means caulking, installing door sweeps, or patching a few visible gaps. While on the surface these measures seem helpful, they typically overlook the hundreds of smaller, hidden micro-air leaks that are actually responsible for drawing pests inside.

In reality, these kinds of partial seals can be misleading. Sometimes they help temporarily. But often, they simply shift the underlying airflow dynamics of your home. By sealing off a handful of larger or more obvious leaks, while ignoring the vast network of tiny structural penetrations, you can inadvertently increase the pressure differential across those remaining micro-leaks. Over months or a year or two, this reroutes air (and pest pathways) to even less desirable areas of the home.

There’s also the matter of workmanship. Many companies use generic sealants and methods that degrade quickly under Arizona’s intense sun and temperature swings. This leaves what we think of as “sealant scar tissue” failed caulk lines and gummed-up applications that do little to stop airflow long term.

The real solution isn’t about chasing every crack that seems obvious or slapping on more product. It’s about understanding your home as a complete system, how air moves through it, how pressure differences pull exterior conditions inside, and how scorpions naturally exploit these pathways. That’s why our approach focuses on Building Performance Sealing: it’s grounded in building science and tailored to address your home’s unique structure and airflow, closing off the true routes pests use to get indoors.

Seal Out Scorpions team is made up of Certified Building Analysts and Envelope Professionals through Building Performance Institute www.bpi.org. Our team has the most sophisticated and effective methods and long-term results in the Southwest. We know, it’s not just about scorpions, rodents or other pests, it’s a discipline rooted in building science that diagnoses and corrects the structural, pressure, and thermal imbalances that draw and allow pests indoors.

At Seal Out Scorpions, we see scorpions as preventable and curable. But that’s only true when you look beyond chemicals, basic pest control, or the kind of general contractor or handyman sealing that simply covers what’s obvious. It means treating the issue at its origin: your home’s

Building envelope, all the intricate mazes that run through it, and how it interacts with the surrounding environment.

That’s why our approach is more like working with an orthopedic specialist instead of a general practitioner. We begin by evaluating how your home breathes, where it leaks, and what pressure or humidity conditions are inadvertently inviting scorpions inside.

We then provide a clear and strategic plan that might include Building Performance Sealing of hundreds of micro-air leaks and hidden structural gaps, assess attic or wall void conditions, and advising on how to keep your home protected.

Just as important, we prioritize aesthetics. We seal in methods that you typically cannot see at all or that actually give your home a more finished, refined look. It’s the difference between crude patchwork and thoughtful work that resembles plastic surgery: precise, minimally visible, and fundamentally restorative. That’s why we’re committed to not only solving the problem at its root but doing it in a way that preserves, and often enhances, the beauty of your home.

Our primary mission is not to scare you into another routine spray contract. In fact, we don’t have subscription contracts like many general pest control services. We offer prescriptive and specialty services. This is why we educate and coach you on why scorpions continue to show up, and how you can take control of the situation for the long term.

When you address the building itself and how it relates to the environment, you solve the real problem, and scorpions simply stop being a recurring issue and go elsewhere. That’s the power of fixing the cause rather than chasing symptoms.

We offer Phone Assessments and sometimes Onsight Assessments for Complex Properties, that uncover exactly how your home’s structure may be inviting pests inside. From there, you’ll have a roadmap to make informed decisions on how far you want to go to secure your home.

Scorpions aren’t just an unavoidable part of living in your home. They’re a symptom of building flaws and micro-environment conditions. When you address the structure, the pressure, and the hidden pathways, you stop scorpions before they start or cure them if they already have.

That’s how you move from temporary treatments to a permanent, science-backed solution, and that’s what we’re here to partner with you to achieve the goal.

We started this year with patterns that are becoming all too familiar: hotter, drier stretches that stress all wildlife, followed by quick humidity spikes that push pests, including scorpions, to find more stable environments. With each passing year, Arizona seems to set new benchmarks for sustained heat. When bursts of rain eventually come, they only amplify pest activity.

That’s why we look at control through the lens of the entire year. Each season has a specific role in keeping your property balanced, and it’s mostly driven by how we adjust pest control tactics to match the biology and behavior of scorpions and their prey.

• In summer, it’s about suppressing the symptoms: This is the season when pests are most active, so treatments are targeted at reducing immediate pressure and activity around your home.
• In fall, it’s about preventing downtime: As temperatures drop, pests start seeking out sheltered voids to overwinter. The goal is to keep them from establishing quiet hiding spots inside attics, walls, and crawl spaces.
• In winter, it’s about building your property’s immune system: This is often when we shore up vulnerabilities and maintain the protective barrier, reinforcing the overall resilience of your home.
• In spring, it’s about changing the path: As everything starts to wake up again, it’s the time to influence how and where pests concentrate around your property, so you’re not inadvertently setting up for another surge.

When it comes to sealing your home, the best time is simple: it’s before the problem becomes deeply established, or as soon as you realize there’s an issue. Sealing is like treating an early-stage disease; the sooner you correct the underlying vulnerabilities, the easier it is to keep it from progressing into something far more stubborn.

And just like medicine, waiting rarely makes it cheaper or simpler. That’s why we see scorpions not as inevitable, but as preventable and curable, when you address the root cause and treat your home like the dynamic, breathing system it truly is.

If you’re curious what might be drawing scorpions into your home, or just want to understand your options for keeping them out season after season, we’re here to walk you through it.

No hype. No pressure. Just straightforward expertise, tailored to your home and goals.

You’re welcome to call us at 480-820-7325 (or 480-820-SEAL if it’s easier to remember), or visit www.SealOutScorpions.com to explore more.

We’re always glad to help you see exactly where things stand, so you can make the best decision for your family and your home.

Seal Out Scorpions is led by Georgia A. Clubb, Advanced Scorpion Specialist, together with William L. Clubb and Michael C. Golleher — Certified Building Analysts and Envelope Professionals through the Building Performance Institute, with additional Building Science Certificates and studies in Urban & Industrial IPM through Purdue University. Their team includes licensed pest management and sealing specialists who pioneered Building Performance Sealing to solve scorpion problems at the structural level.

Seal Out Scorpions
124 West Orion Street #F6
Tempe, Arizona 85283

Office: 480-820-7325
Email: support@sealoutscorpions.com