Categories Pest Treatment & Services

WDI Inspection for VA Loans in Milwaukee: What to Expect and How Fast We Deliver

A person in uniform inspects plumbing under a sink, holding a pen, while the Ehlers Pest Management logo appears in the bottom right corner—demonstrating their commitment to thorough pest control.

If you’re buying a home in Milwaukee with a VA loan, a WDI inspection in Milwaukee is a required step before closing — and how fast your inspector delivers the paperwork can directly affect your timeline. For veterans and active-duty service members navigating a VA loan purchase, knowing what this inspection involves, what it costs, and how quickly you can get the documentation you need takes one more variable off a process that already has plenty of moving parts.

What Is a WDI Inspection and What Does It Cover?

A Wood Destroying Insect inspection is a systematic examination of a property’s accessible areas for evidence of infestation or damage caused by wood-destroying insects. In Wisconsin, the insects covered under a WDI inspection include:

  • Termites — subterranean termites are present in Wisconsin in low numbers but are a reportable finding under VA guidelines
  • Carpenter ants — common in Southeastern Wisconsin and capable of causing significant structural damage over time
  • Wood-boring beetles — including powderpost beetles, which infest hardwood and can spread through a structure
  • Carpenter bees — which bore into unfinished or weathered wood on home exteriors

The inspection covers all accessible areas of the structure including the basement, crawl space, attic, garage, and exterior wood. The inspector documents any evidence of active infestation, previous infestation, or damage — and notes areas that weren’t accessible for inspection.

Why Do VA Loans Require a WDI Inspection?

The VA requires WDI inspections because the loan program is designed to protect veterans from purchasing properties with undisclosed structural problems. Wood-destroying insect damage can be extensive, expensive to remediate, and invisible to a buyer without a trained inspector looking specifically for it.

VA guidelines require the inspection to be completed by a licensed pest control company, not a general home inspector, and the report must be submitted on the appropriate VA form. The lender needs this documentation before the loan can close, which is why turnaround time matters — delays in getting the completed report can push a closing date.

What Does a WDI Inspection Cost in Milwaukee?

Ehlers Pest Management charges $250 for a WDI inspection at a residential property in Milwaukee and the surrounding Southeastern Wisconsin service area. This fee covers the inspection itself, all required VA documentation, the service report, and the invoice — delivered the same business day or by 3 PM the following business day.

Turnaround time on paperwork is a meaningful differentiator in this service category. Some providers take several days to deliver completed VA documentation, which can create real problems during a closing. Ehlers’ standard is same-day delivery when the inspection is completed before mid-afternoon, with guaranteed next-business-day delivery for all others.

Who Should Schedule a WDI Inspection in Milwaukee?

The WDI inspection requirement applies specifically to VA loan purchases, but the inspection itself is useful for any home buyer who wants clarity on wood-destroying insect activity before closing. The primary audiences who benefit from scheduling a WDI inspection in Milwaukee include:

  • Veterans and active-duty service members using a VA loan to purchase a home in the Milwaukee area — the inspection is a required step before the loan closes
  • Real estate agents working with VA loan buyers who need a reliable, fast-turnaround provider they can refer with confidence
  • Home buyers using conventional financing who want additional peace of mind beyond the standard home inspection, particularly for older Milwaukee homes where carpenter ant and wood-boring beetle activity is more common

For realtors working with VA loan clients regularly, having a licensed WDI inspection provider who delivers same-day or next-business-day paperwork is a practical necessity, not a nice-to-have. Ehlers has the correct VA documentation forms, the licensing required to complete the inspection, and a turnaround standard built around closing timelines.

How to Schedule Your WDI Inspection in Milwaukee

Scheduling a WDI inspection with Ehlers is straightforward. Contact us with the property address and your target inspection date, and we’ll confirm availability and get you on the schedule. We’ll perform the inspection, complete all required VA documentation, and deliver the report, paperwork, and invoice the same day or by 3 PM the following business day.

To schedule a WDI inspection in Milwaukee or talk to our experienced team about timing and availability, contact us today.

Frequently Asked Questions

Is a WDI inspection required for all VA loans in Wisconsin?

Yes. VA guidelines require a Wood Destroying Insect inspection for all VA loan purchases in Wisconsin. The inspection must be completed by a licensed pest control company and submitted on the appropriate VA form before the loan can close. Wisconsin is among the states where the VA requires this inspection as a standard part of the loan process.

How long does a WDI inspection take in Milwaukee?

Most residential WDI inspections take between 30 and 60 minutes depending on the size and accessibility of the property. Ehlers delivers the completed report, VA paperwork, and invoice the same business day or by 3 PM the following business day after the inspection is completed.

What happens if a WDI inspection finds evidence of wood-destroying insects?

A finding doesn’t automatically prevent a VA loan from closing. The VA requires that any active infestation be treated before closing and that a clearance letter confirming treatment be provided. Previous infestation that has been treated and shows no active activity is documented but doesn’t necessarily require additional treatment. Your lender and real estate agent can walk you through the specific next steps based on what the inspection finds.

Can a home inspector do a WDI inspection for a VA loan in Milwaukee?

No. VA guidelines require that WDI inspections be completed by a licensed pest control company, not a general home inspector. The report must be submitted on the correct VA form and signed by a licensed pest control professional. Ehlers Pest Management is licensed to perform WDI inspections and provides all required VA documentation.

Categories Pest Treatment & Services

Wasp Nest Removal in Milwaukee: What to Do, What Not to Do, and When to Call

Several wasps clustered around a nest, with the Ehlers Pest Management LLC logo and slogan Problem Solved in the lower right corner, highlighting their expert pest control services.

Finding a wasp nest on your property is one of those moments where the next decision matters. Wasp nest removal in Milwaukee isn’t always a job for a professional, but knowing which situations are manageable yourself and which ones aren’t can be the difference between a quick fix and a painful mistake.

Here’s how to assess what you’re dealing with, what to do and avoid in the meantime, and when wasp nest removal genuinely calls for a professional.

First: Identify What You’re Actually Dealing With

Not all wasp nests are the same, and the right response depends heavily on what species built it and where it’s located.

  • Paper wasp nests are open, umbrella-shaped structures typically found under eaves, deck railings, and window frames. Colonies are relatively small, usually 20 to 30 adults, and the wasps are generally less aggressive unless the nest itself is disturbed.
  • Yellow jacket nests are usually hidden, located in the ground, inside wall voids, or in hollow trees and stumps. Yellow jackets are far more aggressive than paper wasps and will defend their nest vigorously if disturbed, even accidentally.
  • Bald-faced hornet nests are the large, gray, papery structures you’ve likely seen hanging from tree branches or attached to a home’s exterior. Colonies can reach several hundred workers by late summer and are highly defensive.

Take a photo from a safe distance if you can do so without getting close to the nest. Accurate identification is the first step toward the right removal approach.

What to Do If You Find a Wasp Nest

  • Keep your distance. Most stinging insect encounters happen when a nest is disturbed, often accidentally. Give the nest a wide berth and limit activity in the immediate area.
  • Warn others on the property. Let family members, employees, or anyone else who uses the area know where the nest is located so they can avoid it too.
  • Check for known allergies. If anyone in your household or workplace has a known allergy to stinging insect venom, treat the nest as a higher priority and consider professional removal sooner rather than later.
  • Note the nest’s location and accessibility. Is it within easy reach, or is it high up, inside a wall void, or in a hard-to-access area? This affects whether DIY treatment is even feasible.

What Not to Do

A few common mistakes turn a manageable wasp nest situation into a painful one:

  • Don’t disturb the nest to “check it out.” Poking, spraying with water, or knocking the nest to see how the colony reacts is one of the fastest ways to trigger a mass defensive response.
  • Don’t attempt removal at the wrong time of day. Wasps are most active during daylight hours. If DIY treatment is appropriate for the situation, early morning or dusk, when activity is lower, is safer than midday.
  • Don’t use a ladder near an aerial nest. Bald-faced hornet nests and large paper wasp nests positioned above eight feet should not be approached using a ladder. The combination of an aggressive colony and an elevated, unstable position is a serious injury risk.
  • Don’t seal off a yellow jacket ground nest entrance without treating it first. Trapped, agitated yellow jackets will often find another way out, sometimes into your home through a different gap.

When DIY Wasp Nest Removal Is Reasonable

For small, accessible paper wasp nests in a low-traffic area, with no known allergy concerns in the household, DIY treatment with an appropriately labeled aerosol product designed for wasp nests can be reasonable. Treat in early morning or dusk when the colony is least active, wear protective clothing, and have a clear, unobstructed retreat path before you begin.

When to Call a Wasp Exterminator in Milwaukee

Several situations call for professional wasp nest removal rather than a DIY attempt:

  • Yellow jacket ground nests or any nest inside a wall void. These require specialized treatment approaches and protective equipment that go beyond what’s available in a retail aerosol product.
  • Bald-faced hornet nests of any size. These colonies are highly aggressive and often too large for safe DIY treatment, particularly later in the season.
  • Nests located above eight feet or in hard-to-reach areas. The combination of height and an agitated colony creates a liability and safety risk that’s better handled with professional equipment.
  • Anyone in the household with a known venom allergy. Any nest on the property is a higher-stakes situation when allergy risk is present.
  • A nest that’s already been accidentally disturbed. If a lawnmower, foot traffic, or other activity has already agitated the colony, professional removal is the safer path forward.

Professional Wasp Nest Removal: What to Expect

A professional wasp exterminator in Milwaukee will identify the species before treatment, use appropriate protective equipment for the specific colony type, apply targeted product directly to the nest to eliminate the colony at the source, and remove accessible nests afterward to prevent reuse by future colonies.

Ehlers Pest Management provides wasp nest removal across Milwaukee and Southeastern Wisconsin. To schedule service or talk to our experienced team about a nest on your property, contact us today.

Frequently Asked Questions

Is it safe to remove a wasp nest myself?

For small, accessible paper wasp nests with no allergy concerns in the household, careful DIY removal can be reasonable. Yellow jacket ground nests, bald-faced hornet nests, and any nest in a hard-to-reach location are best left to a professional given the higher risk of a mass defensive response.

What time of day is best for wasp nest removal?

Early morning or dusk, when wasp activity is lowest, is the safest time for any nest treatment, whether DIY or professional. Midday treatment, when the colony is most active, carries higher risk.

Will a wasp nest come back after removal?

The same nest structure typically won’t be reused by a new colony once the original colony has been eliminated and the nest removed. However, a new colony can build a nest in a similar nearby location if the conditions that attracted the original colony haven’t changed.

How much does professional wasp nest removal cost in Milwaukee?

Pricing depends on the species, nest location, and accessibility. Ground nests and hidden wall void nests typically require more involved treatment than an accessible paper wasp nest, which affects cost. A technician can give you an accurate price after assessing your specific situation.

Categories Pest Treatment & Services

How Fast Can You Get Pest Control in Milwaukee? What to Expect

A person in protective gear sprays a substance on the floor near a window, holding a blue tank. The Ehlers Pest Management LLC logo appears in the lower right corner, highlighting their professional pest control services.

If you’re dealing with a pest problem right now, pest control response time in Milwaukee is probably the first thing on your mind. How soon can someone actually come out? Do you have to wait a week? Understanding what realistic scheduling looks like helps you set the right expectations and make a more informed decision about who to call.

Here’s what actually affects pest control scheduling in Milwaukee, what a reasonable timeline looks like, and how to schedule pest control in a way that gets you taken care of as efficiently as possible.

What Affects Pest Control Response Time in Milwaukee

Scheduling timelines vary based on a handful of practical factors, and understanding them helps explain why one company might get to you faster than another.

  • Time of year. Pest control companies in Milwaukee experience seasonal demand surges, particularly in spring as ants and other pests become active, and in fall as box elder bugs, lady beetles, and rodents move toward homes. Scheduling during peak season generally takes longer than during slower months.
  • Type of pest problem. Some issues require specialized equipment, specific technician certifications, or particular scheduling considerations, which can affect how quickly a company can accommodate a request.
  • Company size and staffing. Smaller, locally owned companies sometimes have more limited daily capacity than larger companies with more technicians on staff, though they often offer more personalized scheduling and direct communication in exchange.
  • Your location within the service area. Technician routing and territory assignments can affect how quickly a company can fit you into an existing schedule, particularly for areas at the edge of a company’s service footprint.

What a Realistic Timeline Looks Like

For most residential pest control requests in Milwaukee, a reasonable expectation is scheduling within a few business days of your initial call, with some flexibility depending on the season and the specific pest involved. Companies that promise instant, guaranteed same-day service for every situation regardless of circumstances are often setting an expectation they can’t consistently deliver.

At Ehlers Pest Management, we give you an honest answer when you call. If we can get to you quickly, we’ll tell you that. If our schedule means a few days’ wait, we’ll tell you that too, along with what to do in the meantime if your situation calls for it. We’d rather set an accurate expectation than make a promise that doesn’t hold up.

How to Schedule Pest Control in Milwaukee Efficiently

A few things you can do when you call help get you scheduled as efficiently as possible:

  • Be specific about what you’re seeing. The more detail you can provide, the type of pest, where you’re seeing activity, how long it’s been going on, the better our team can assess priority and prepare for the visit.
  • Mention any time constraints. If you have specific availability windows due to work, a rental property turnover, or another scheduling need, let us know upfront so we can work around it.
  • Ask about your options. If your first available appointment doesn’t work for your schedule, ask whether there are alternative time slots or whether a cancellation list is available.
  • Consider a service plan if you’re a recurring customer. Customers on an ongoing seasonal or quarterly plan typically have an easier scheduling relationship with their pest control provider, since visits are planned in advance rather than scheduled reactively.

When Timing Matters Most

Some pest situations genuinely benefit from quicker scheduling than others. A wasp nest near a frequently used entry point, a rodent issue in a food preparation area, or a bed bug situation in a multi-unit building are all examples where getting on the schedule sooner meaningfully changes the outcome. When you call, let your pest control provider know if your situation involves any of these factors so they can help prioritize appropriately within their existing schedule.

For situations that are uncomfortable but not actively worsening by the hour, a few days’ wait for the right technician and the right treatment plan is generally a better outcome than rushing into a less thorough visit.

What to Expect When You Call Ehlers

When you call Ehlers Pest Management, you’re talking to someone local who can give you an honest assessment of your situation and a realistic timeline based on our actual schedule, not a generic promise designed to get you off the phone. We’ll work with you to find a time that fits your situation and explain what to expect before your appointment.

To schedule service or talk to our experienced team about your specific pest problem, contact us today.

Categories Pest Treatment & Services

Locally Owned Pest Control in Milwaukee: Why It Makes a Real Difference

A pest control worker sprays a driveway with a hose, standing near a white Ehlers Pest Management LLC truck, both displaying the company’s logo. This scene highlights local pest management services in action.

Locally owned pest control in Milwaukee sounds like a simple thing to find, but it’s gotten harder to verify than it used to be. Plenty of companies advertise themselves as local while actually operating as a franchise location of a much larger regional or national company. Understanding the difference matters, because genuine local ownership affects everything from pricing decisions to who actually shows up at your door.

Here’s what locally owned pest control in Milwaukee actually means, how to tell the difference between genuine local ownership and a franchise dressed up as local, and why it matters for your home or business.

“Local” Doesn’t Always Mean What You Think

A lot of companies in the pest control industry use the word local in their marketing, but that word can mean very different things depending on the company. A franchise operation might genuinely have a local office and local technicians, while the business decisions, pricing structures, and corporate policies are all set by a parent company headquartered somewhere else entirely.

This isn’t always obvious from a website or a truck parked outside a customer’s home. The franchise model is specifically designed to look and feel local, even when the actual operating structure is closer to a big-box business model with a regional or national company behind it.

What Genuine Local Ownership Looks Like

A genuinely locally owned pest control company in Milwaukee, like Ehlers Pest Management, has a different structure entirely. There’s no parent company setting pricing or policy from another state. The people making decisions about how the business operates are the same people who live in this community and answer the phone when you call.

A few things distinguish genuine local ownership:

  • Decisions get made locally. Pricing, scheduling, and service standards are set by the people who actually run the business in Southeastern Wisconsin, not dictated by a corporate office elsewhere.
  • The company has deep roots in the specific community it serves. Genuine local businesses tend to have longer histories in a specific area, rather than a recently opened franchise location.
  • Staff are part of the community. Technicians and office staff live in the area they serve and have firsthand knowledge of local seasonal pest patterns, housing stock, and neighborhood-specific conditions.
  • There’s no franchise fee structure influencing pricing. Franchise locations often build franchise fees into their pricing models, which can affect what customers ultimately pay.

Why Local Ownership Affects Service Quality

Beyond the values question, local ownership has practical implications for the service you actually receive. A locally owned pest control company in Milwaukee has a direct, personal stake in its reputation within this specific community. Word of mouth, local reviews, and repeat business from neighbors matter in a way that’s harder to replicate at a franchise location reporting performance metrics to a distant corporate office.

This often translates into more attentive service, more flexibility to address a customer’s specific situation, and more accountability when something needs to be made right. A local pest control company in Milwaukee isn’t managing a script handed down from corporate. It’s managing its own reputation, one job at a time.

How to Tell If a Company Is Actually Locally Owned

A few direct questions help you figure out whether a company claiming to be local actually is:

  • Ask directly whether the company is independently owned or part of a larger franchise or regional network.
  • Look at how long the company has operated in the specific community, not just how long the brand name has existed.
  • Ask who sets pricing and service policy, the local office or a corporate parent company elsewhere.
  • Pay attention to how the company talks about itself. Genuine local businesses tend to be specific about their history and community involvement rather than relying on generic local-sounding marketing language.

Choosing Locally Owned Pest Control in Milwaukee

Ehlers Pest Management is a genuinely locally owned and independently operated pest control company that has served Milwaukee and Southeastern Wisconsin since 2010. There’s no franchise fee built into our pricing, no corporate office setting policy from somewhere else, and no distance between the people who run the business and the community we serve.

To schedule service or talk to our experienced team about what genuine local ownership means for how we treat your home or business, contact us today.

Frequently Asked Questions

How do I know if a pest control company is actually locally owned?

Ask directly whether the company is independently owned or operates as a franchise of a larger company. You can also research how long the specific business has operated in your community and whether local decision-makers or a distant corporate office sets pricing and policy.

Is locally owned pest control more expensive than a franchise or national chain?

Not necessarily. In some cases, locally owned companies can offer more competitive pricing because they aren’t building franchise fees into their cost structure. Pricing varies by company regardless of ownership structure, so it’s worth comparing actual quotes.

Are locally owned pest control companies as qualified as larger companies?

Yes. All pest control companies operating in Wisconsin, regardless of size or ownership structure, are subject to the same state licensing and certification requirements. Ownership structure doesn’t affect regulatory qualifications.

What’s the difference between a franchise and a locally owned business?

A franchise operates under a licensing agreement with a larger parent company, which often sets pricing structures, branding, and operational policies. A locally owned business is independently operated, with local decision-makers controlling pricing, service standards, and business direction.

Categories Pest Treatment & Services

Stinging Insect Control in Milwaukee: Wasps, Yellow Jackets, and Hornets

Several yellow and black wasps cluster on a nest with hexagonal cells. The image features the Ehlers Pest Management LLC logo in the lower right corner with a green border at the bottom, highlighting their expertise in local pest management.

If you’re finding stinging insects around your Milwaukee home this summer, stinging insect control in Milwaukee is one of those problems that gets more complicated the longer you wait. Wasp and yellow jacket colonies grow throughout the summer, reaching peak population by late August and early September. A nest that’s manageable in June becomes a much larger problem by fall.

Here’s what you’re most likely dealing with in Southeastern Wisconsin, why stinging insects are more dangerous than most homeowners realize, and when to stop troubleshooting and call a professional.

Common Stinging Insects in Milwaukee Homes and Yards

Not every stinging insect requires the same response. Knowing what you’re dealing with helps you make a smarter decision about how to handle it.

Paper wasps are slender, brownish insects that build open, umbrella-shaped nests under eaves, deck railings, window frames, and door frames. They’re relatively docile unless the nest is disturbed directly, but their preferred nesting locations put them in close proximity to daily human activity. Colonies are smaller than yellow jackets, typically 20 to 30 adults, but grow through summer.

Yellow jackets are the stinging insect most commonly responsible for painful encounters in Southeastern Wisconsin. They’re aggressive; they defend their territory vigorously, and unlike bees, they can sting repeatedly. Yellow jackets nest in the ground, inside wall voids, and in hollow trees or stumps. Ground nests are particularly dangerous because they’re easy to disturb accidentally while mowing or walking through the yard.

Bald-faced hornets build the large, gray, papery nests you’ve probably seen hanging from trees or attached to the exterior of a home. Colonies can reach several hundred workers by late summer and are highly aggressive when disturbed. These nests should never be approached or treated without professional equipment.

Mud daubers are solitary wasps that build small mud tubes on exterior walls, under overhangs, and inside garages. They’re generally non-aggressive and pose minimal risk, but their mud nests are unsightly and can attract other insects.

Why Stinging Insect Problems Get Worse Through Summer

This is the most important thing Milwaukee homeowners need to understand about stinging insects: colonies grow all summer long. A nest founded by a single queen in May will have dozens of workers by June, hundreds by July, and can reach peak population of several thousand in August and September.

As colonies grow, so does their defensive behavior. A small paper wasp nest in June that you’ve been coexisting with peacefully can become a genuinely hazardous situation by August when colony population and aggression levels are at their peak.

Summer is also when yellow jacket foraging behavior increases significantly. Colonies send out more workers searching for food, which brings them into more frequent contact with people eating outdoors, handling trash, or working in the yard.

The practical implication is straightforward: earlier treatment means smaller colonies, less aggressive behavior, and a simpler, safer removal process.

When Stinging Insects Become a Serious Problem

Most stinging insect encounters are unpleasant but not dangerous for people without allergies. However, there are situations that warrant immediate professional attention:

  • Nests near frequently used entry points. A nest above a front door, near a garage entry, or close to a children’s play area creates daily exposure risk that shouldn’t be ignored.
  • Ground nests discovered through accidental disturbance. Yellow jacket ground nests that have been disturbed by a lawnmower, foot traffic, or landscaping activity can trigger a mass defensive response. If this has happened, keep people and pets away from the area and call a professional.
  • Anyone in the household with a known venom allergy. For individuals with a diagnosed allergy to stinging insect venom, any nest on the property is a medical risk that should be professionally removed promptly.
  • Nests inside wall voids or structural cavities. Stinging insects nesting inside your home’s walls, attic, or crawl space require professional treatment. Attempting DIY removal of an interior nest can drive insects further into the structure or into living spaces.

What a Wasp Exterminator in Milwaukee Actually Does

Professional stinging insect control in Milwaukee involves more than spraying a can of wasp killer at a nest from a distance. Here’s what a proper treatment looks like:

Species identification. Treatment approach varies significantly by species. Yellow jacket ground nests, aerial hornet nests, and wall void infestations each require different methods and products.

Protective equipment. Professional technicians treat stinging insect nests with appropriate protective gear, which matters significantly when dealing with large yellow jacket or bald-faced hornet colonies.

Targeted product application. Professional-grade products applied directly into or onto the nest eliminate the colony at the source rather than just killing foragers that make contact with a surface spray.

Nest removal where appropriate. After treatment, removal of accessible nests prevents future use by other colonies and eliminates harborage for secondary pests.

Don’t Wait Until the Colony Is at Full Strength

Stinging insect colonies in Milwaukee reach peak size and peak aggression in late summer. Addressing a nest in June or July is faster, safer, and less disruptive than dealing with the same nest in August or September when it’s had all summer to grow.

Ehlers Pest Management provides stinging insect control across Milwaukee and Southeastern Wisconsin. To schedule service or talk to our experienced team about what you’re seeing on your property, contact us today.


Frequently Asked Questions

What is the most dangerous stinging insect in Milwaukee? Yellow jackets are responsible for the most painful and dangerous encounters in Southeastern Wisconsin because of their aggressive defensive behavior, their tendency to sting repeatedly, and their ground-nesting habit that makes accidental disturbance common. Bald-faced hornets are also highly aggressive when their nest is disturbed.

How do I know if I have yellow jackets or wasps? Yellow jackets are stockier, more brightly banded in yellow and black, and highly aggressive. They nest in the ground or in wall voids. Paper wasps are slender, brownish, and build open umbrella-shaped nests in sheltered above-ground locations. Bald-faced hornets are larger, black and white, and build large gray papery aerial nests.

Can I treat a wasp nest myself? For small, accessible paper wasp nests in a low-risk location, DIY treatment with an appropriately labeled aerosol product is feasible. For yellow jacket ground nests, bald-faced hornet nests, large aerial nests, or any nest inside a wall void or structural cavity, professional treatment is strongly recommended. The risk of a mass defensive response during DIY treatment of a large colony is significant.

When do stinging insects become less active in Wisconsin? Colony activity decreases as temperatures drop in fall. Most worker wasps and yellow jackets die off by the first hard frost, leaving only newly mated queens to overwinter. However, colonies reach their largest size and highest aggression levels in August and September before this decline begins.Will a wasp nest go away on its own in winter? The colony itself dies off, but the nest structure remains. Empty nests don’t typically attract new colonies the following year, but they can provide harborage for other insects. Removing accessible nests after the colony has died in late fall is worthwhile preventative maintenance.