Westminster's mix of established neighborhoods, open space, and the Standley Lake corridor creates a wide range of pest issues for homeowners. ExtermiSafe is a local, family-owned team that responds fast and treats the way Westminster expects.
Westminster's expansive open space and trail network keep pests close to neighborhoods year-round. Standley Lake and Big Dry Creek maintain moisture that supports mosquito, spider, and ant pressure deep into the season. Older homes mixed with newer construction means entry-point profiles change block to block.
Get a Free QuoteCommon Westminster calls involve ants, spiders, wasps, mice, box elder bugs, and seasonal mosquito issues near the lake corridor.
Westminster's irrigated lawns and moist mulch beds create ideal conditions for pill bugs, which thrive under decorative rock, wood borders, and dense ground cover. While harmless, large populations signal excess moisture near the foundation — a condition that also invites more damaging pests.
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Ants are one of the most common calls in Westminster, particularly pavement ants and odorous house ants that exploit the city's mix of concrete driveways, older slab foundations, and irrigated landscaping. The Big Dry Creek corridor and surrounding open space provide large foraging populations that push into neighborhoods each spring. Colonies can establish quickly under patios, sidewalks, and along foundation walls throughout Adams and Jefferson County neighborhoods.
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Mice are a persistent problem in Westminster's older neighborhoods near Historic Westminster and Cotton Creek, where aging construction leaves gaps around pipes, utility lines, and weathered door frames. As temperatures drop in fall, mice move from open space and commercial corridors along 120th Ave into homes seeking warmth and food. Once inside, they contaminate pantries and can chew through wiring, making early intervention critical.
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Spiders are abundant in Westminster thanks to the city's extensive open space, trail corridors, and mature landscaping that support large insect populations — their primary food source. Wolf spiders and cellar spiders are frequent finds in basements and garages, especially in homes near Standley Lake and Big Dry Creek. Populations peak in late summer and fall as spiders seek shelter before cooler weather sets in.
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Black widow spiders are a genuine concern in Westminster, particularly in undisturbed areas like window wells, storage sheds, wood piles, and utility boxes common in both older and newer neighborhoods. The warm, dry microclimates created by south-facing fences and retaining walls along Westminster's residential corridors are ideal harborage. Their venom is medically significant, making professional removal the safest approach.
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Wasps build nests under eaves, in soffits, and in ground cavities throughout Westminster's residential neighborhoods, with activity peaking from July through September. The city's urban parks, commercial landscaping along 120th Ave, and open space buffers provide abundant foraging territory that keeps colonies large and aggressive late in the season. Nests near entryways and play areas pose a real sting risk for families.
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Yellow jacket wasps are especially problematic in Westminster during late summer, when colonies reach peak size and workers become aggressive around outdoor dining, trash areas, and sports fields. Ground nests are common in the city's open space corridors and along the Big Dry Creek trail, where foot traffic can accidentally disturb them. Nests near patios and playgrounds in neighborhoods like Bradburn and Legacy Ridge require prompt professional treatment.
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Mosquitoes are a significant seasonal issue in Westminster due to Standley Lake, Big Dry Creek, and the network of retention ponds and irrigation ditches that run through the city's open space. Standing water in low-lying areas of neighborhoods like Sunstream and The Ranch creates breeding habitat that sustains pressure well into September. West Nile Virus has been detected in Adams County mosquito populations, making control more than a comfort issue.
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Box elder bugs emerge in large numbers each fall in Westminster, drawn to the box elder and maple trees planted throughout the city's established neighborhoods and parks. They congregate on south-facing walls and fences to absorb heat before pushing inside through gaps around windows and doors. While not destructive, their sheer numbers and the staining they leave behind make them a top fall nuisance call across Westminster.
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Earwigs thrive in Westminster's irrigated yards, hiding under mulch, landscape timbers, and ground cover during the day and feeding on plants and organic debris at night. The moisture retained by drip irrigation systems and dense plantings in neighborhoods like Bradburn and Legacy Ridge creates ideal conditions year-round. They frequently enter homes through ground-level gaps, appearing in bathrooms, basements, and kitchens.
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Carpenter ants are an increasing concern in Westminster, particularly in older neighborhoods where mature trees, wood fences, and aging deck structures provide nesting opportunities. Unlike termites, they don't eat wood but excavate it to build galleries, causing structural damage over time. Moisture-damaged wood around windows, rooflines, and crawl spaces in Westminster's mix of 1970s–1990s homes is a common entry and nesting point.
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Subterranean termites are active in Westminster's soil and pose a long-term structural risk, particularly in older homes along the Historic Westminster corridor and properties with wood-to-soil contact in landscaping. Colorado's Front Range termite pressure is often underestimated, but Adams County has documented activity that warrants regular inspection. Moisture from irrigation systems and mulch beds placed against foundations accelerates the risk of infestation.
Learn more →Bradburn · Legacy Ridge · The Ranch · Standley Lake · Sunstream · Cotton Creek · Historic Westminster · Hyland Hills
Yes — Westminster is inside our regular service area, and we cover the surrounding North Denver metro as well. If you want to confirm your exact address is on the route, check your ZIP on our service area page or just call and ask.
It depends on the pest, the size of the property, and how far along the problem is — a single wasp nest and a recurring mouse problem are not the same job. We quote it free, in writing, before any work starts, and there is no contract to sign.
Safety is the reason we work Integrated Pest Management first: we find and remove what is attracting the pest, seal the way in, and use the most targeted, lowest-impact product that will actually solve it — instead of blanket-spraying a house. Your technician tells you exactly what was applied and when it is dry.
We come back and re-treat at no extra charge. Our work is warranty-backed, so a pest returning between scheduled visits is our problem to fix, not a new invoice.
No. There is no term contract and no cancellation penalty. Most Westminster customers stay on a recurring plan because it keeps pressure off the house year-round, but you can stop any time.
Yes — ExtermiSafe is licensed and insured in Colorado, and we are locally owned and operated rather than a national franchise. The person who answers the phone is the same company that shows up.
Great service!!! Very thorough!!!
ExtermiSafe Pest Control is the most effective service around! Brandon is an expert at specific pest issues while alao keeping my home, inside and out, overall, safe and free from all pests! I highly recommend his regular service year-round for best results. Very economical, too!
Great work clean efficient and professional. The smaller companies I way better to go with then mega corp they are reasonable and down to earth
Amazing job! Courteous and professional!! I have used them multiple times and jobs are always well done!!
I needed an exterminator in a pinch and ExtermiSafe came through and sprayed around the house and was very nice and easy to deal with, Justin was a cool guy and I will pay for there services again.
Excellent and thorough service. Very respectful. he was able to do some preventative work as well as take care of the immediate issue. Highly recommend.
Brandon was on time, prompt and professional and got rid of the nest under our front door. Would highly recommend again!
Brandon did an absolutely outstanding job on our home! From the moment he arrived, he was incredibly kind, patient, and professional. He took the time to answer all of our questions, explained everything he was doing, and never made us feel rushed. It was obvious how hard he worked to make sure the job was done right. He was thorough, detail-oriented, and genuinely cared about providing the best service possible. Since Brandon treated our home, we haven’t had a single issue, and the results have been fantastic. It’s hard to find someone who combines excellent workmanship with such a positive attitude, but Brandon does exactly that. If you’re looking for someone reliable, knowledgeable, and who truly goes above and beyond, I can’t recommend him enough. Thank you, Brandon, for the amazing work!
I had a great experience with ExtermiSafe Pest Control. Brandon was on time, professional, and very knowledgeable. He took the time to explain the treatment process, answered all of my questions, and never tried to upsell me. Since the service, I've noticed a huge improvement, and the pests are gone. It's refreshing to work with someone who genuinely cares about their customers. I highly recommend Brandon and ExtermiSafe Pest Control to anyone looking for reliable and honest pest control service.
I couldn’t be happier with my experience with Brandon, he’s very attention to detail, hits every nook and cranny. I’ve had problems with past pest control companies showing up for 5 minutes and that’s a $250 service.
