​What Industry Experts Say—and How Local Pros Help

If it feels like pests are showing up earlier than usual… you’re not imagining it.

According to the National Pest Management Association’s latest forecast, pest activity is expected to start sooner and hit harder across much of the country this year. Weather patterns allowed more pests to survive the winter, setting the stage for a busy spring and summer.

Here in Colorado, that matters.

At EnviroPest, our local technicians are already seeing the early signs across Denver, Colorado Springs, and Northern Colorado neighborhoods. And if history (and science) tells us anything, it’s that early pest pressure usually leads to bigger problems later.

Let’s break down what to expect—and what homeowners should do now.

ants on granite countertop

​Quick Answer: What to Expect This Spring and Summer Pest Season in Colorado

Pest activity in Denver, Colorado Springs, and Northern Colorado is starting earlier than usual. A warm winter and early spring heat are to blame.

Expect more ants, mosquitoes, cockroaches, wasps, spiders, and earwigs as we head into summer.

Professional pest control is the best way to stop infestations before they start.

Why Pest Season Is Starting Early in Colorado

This year’s conditions lined up just right for pests:

  • Warmer winter stretches helped pests survive
  • Moisture and temperature swings sped up breeding cycles
  • Spring warmth is triggering earlier movement

That’s why experts are already warning of “heightened pest activity” and earlier emergence nationwide.

In the Intermountain and Southwest region—which includes Colorado—experts point to increased pest activity, including cockroaches, with overall pest pressure ramping up as summer approaches.

For homeowners, this means one thing:

Pests aren’t waiting this year.

What Pests to Expect Around Denver, Colorado Springs & Northern Colorado

Ants (Already Active Earlier Than Normal)

Ants are usually one of the first signs of spring—but this year, they’re showing up even sooner.

That early activity isn’t random. After Colorado’s warmest winter on record, and with March already bringing stretches of unusual warmth, ants and other insects can start moving earlier than usual.

What we’re seeing locally:

  • Kitchen invasions are starting earlier
  • Increased activity around foundations and patios
  • Colonies are growing faster due to mild conditions

Once ants find a food source inside, they’ll keep coming back—often bringing the rest of the colony with them.

The earlier you start service, the easier it is to keep pests out for good. Get a free estimate today.

Mosquitoes (When Moisture Picks Up)

Even in Colorado’s drier climate, mosquitoes can surge when moisture is present.

And it doesn’t take much.

Mosquitoes can breed in as little as a teaspoon of standing water.

Warm temperatures accelerate their life cycle, meaning populations can spike quickly once they get going.

If you want to actually enjoy your yard this summer, now is the time to get ahead of mosquito season.

Cockroaches (Bigger Summer Pressure)

Experts are calling out cockroaches as key pests for our region this year.

Why?

  • Warmer temperatures speed up reproduction
  • Moisture increases breeding sites
  • Summer heat pushes pests indoors

Once inside, these pests don’t just go away—they settle in and often show up at night in kitchens, bathrooms, and other areas where they can find easy access to moisture and food.

Wasps & Stinging Insects

Spring is when wasp queens emerge and start building nests.

By mid-to-late summer, those small nests turn into full colonies.

That’s when homeowners start noticing:

  • Activity around eaves and rooflines
  • Nests near entryways
  • More aggressive behavior later in the season

Our local technicians often find wasp nests under decks, in eaves, and other sites close to where families spend time outside.

Spiders & Occasional Invaders

Spiders follow their food. When insect populations increase, spider activity does too.

But they’re not the only ones moving in.

Occasional invaders like earwigs, millipedes, and centipedes tend to show up more as conditions shift—especially after moisture or summer storms. Earwigs, in particular, are common around Colorado homes and often show up in bathrooms, basements, and along baseboards where it’s cool and slightly damp.

Later in the season—especially with summer storms—spiders and other pests will likely move indoors for shelter.

In Colorado homes, that often means activity in the following areas:

  • Basements
  • Garages
  • Window frames and entry points

Why DIY Pest Control Falls Short (Especially This Year)

It’s tempting to grab a can of spray off the shelf and hope for the best.

But here’s the reality:

Even industry experts emphasize that proactive, professional pest management is the most effective approach.

With an early and active season ahead, waiting or relying on DIY methods can give pests time to establish themselves inside your home.

What Colorado Homeowners Should Do Right Now

This isn’t about reacting. It’s about getting ahead of the problem.

Here’s what matters most this season:

  • Early inspections before pest populations explode
  • Targeted treatments based on local pest patterns
  • Ongoing protection that stops insects and rodents all year-round

That’s exactly how we approach residential pest control at EnviroPest.

Why Homeowners Across Colorado’s Front Range Trust EnviroPest

We’re a locally operated team that understands:

  • How Denver’s climate affects pest cycles
  • Why Colorado Springs homes see seasonal surges
  • What Northern Colorado properties deal with year after year

Our team delivers pest treatments designed for this region—because what works here isn’t always what works somewhere else.

And most importantly?

We focus on stopping problems before they become infestations.

Get Ahead of Pest Season Before It Peaks

This year’s forecast is clear:

  • Pests are coming earlier
  • They’ll be more active
  • And they won’t slow down without intervention

If you’re already seeing signs—or just want peace of mind—now is the time to act.

Sign up for residential pest control service with EnviroPest today.

Frequently Asked Questions About Pest Season in Colorado

When does pest season start in Colorado?

Pest season in Colorado typically begins in early spring, but warmer winters and early heat can cause pests like ants and spiders to become active sooner than usual.

What pests are active in Colorado during spring and summer?

Common spring and summer pests in Colorado include several ant species, roaches, spiders, stinging insects, and mosquitoes.

What are common household pests in Denver, Colorado Springs, and Northern Colorado?

Common household pests in Denver, Colorado Springs, and Northern Colorado include ants, spiders, wasps, mice, earwigs, and other occasional invaders such as boxelder bugs and beetles.

Contact EnviroPest and Let Our Team Protect Your Home and Family

A busy pest season doesn’t have to turn into a stressful one.

With the right plan—and the right local team—you can keep your home protected.

And this year, getting ahead isn’t just smart…it’s necessary.

Contact EnviroPest today.