How Often Should a Home or Business Get Pest Control?
Denver Metro Area
"How often do I need you to come out?" is one of the first things people ask us, and the honest answer is: it depends on the building. A house with no history of pests and a restaurant kitchen next to an alley dumpster are not the same job, and they shouldn't be on the same schedule.
Here's how we think about it, for homes first and then for businesses.
For homes: only when you need it, or quarterly
Most homes fall into one of two groups.
A single visit is enough when the problem is one thing, one time. A wasp nest by the back door. An ant trail in the kitchen in spring. A few spiders in the basement. We treat it, we come back if the treatment needs a follow-up, and you're done.
Quarterly service makes sense when the pressure keeps coming back. That usually means one of these:
- Your yard backs onto open space, a greenbelt, a field or a creek
- You have mature trees, heavy landscaping or thick mulch against the house
- The house is older, with more gaps in the foundation, siding and roofline
- You've had mice, ants or fall invaders two years in a row
- You're in the foothills, where wildlife and insects push in from every side
Quarterly visits line up with the seasons along the Front Range: ants and wasps in spring, spiders and mosquitoes in summer, mice and fall invaders in fall, and a check for anything overwintering in the house. Each visit is timed before the next wave, instead of after it's already inside.
No contracts either way. If quarterly isn't doing anything for you, you can stop.
For businesses: usually more often, and always documented
A business has two reasons to be on a schedule that a home doesn't. More people are coming and going, bringing things in with them. And someone else is watching: a health inspector, a tenant, a customer who posts a photo online.
Colorado's retail food rules require food businesses to keep their premises free of insects and rodents. The rules don't set how often a pest company has to come. That's up to you. But when an inspector asks what you're doing about pests, a service log with dates, products and findings answers the question.
Here's where different kinds of buildings usually land.
Restaurants, cafes, bars and commercial kitchens: monthly
Food, water, warmth and deliveries every day are exactly what cockroaches, mice and flies need. German cockroaches especially come in with boxes and deliveries and can breed fast enough that three months between visits is too long. We recommend monthly service for any food business. It catches new activity while it's still a few bugs, not a problem a customer sees.
Apartment and condo buildings: a regular schedule for the building, plus units as needed
Pests don't stay in one apartment. Mice, German roaches and bed bugs move through shared walls, plumbing and electrical runs. Treating one unit when a tenant complains, and ignoring the units around it, is how buildings end up treating the same problem all year. We wrote about this in more detail in our post on German roaches in Denver apartments.
A building program usually covers the outside, common areas, trash rooms and laundry on a regular schedule, with individual units treated when there's activity, and the units next to them checked too.
It also matters legally. Under Colorado's habitability law, an infestation of rodents, pests or insects can make a rental unit legally uninhabitable, and the law calls for pest control in common areas, not only inside units. Denver rentals also need a residential rental license, which includes an inspection against the city's housing standards.
Offices and retail: monthly or quarterly
Less food and less traffic than a restaurant usually means less pressure. Some offices are on monthly service and some on quarterly. It depends on the building and whether it has had problems before or has one now. Break rooms and kitchens are where problems start, so they get the closest look.
Hotels, healthcare and senior living: set by the building and its risks
Hotels mostly worry about bed bugs coming in with guests, so the focus is on catching them early, room by room. Healthcare and senior living buildings need careful product choices and paperwork that holds up in an audit. The schedule depends on the building.
Warehouses and industrial: set by what's stored
Food and stored products bring rodents and insects. Big doors that stay open bring in everything else. Most need regular rodent monitoring around the outside, with the schedule set by what's in the building.
What a good commercial service should include
However often someone comes, you should get:
- A first inspection in writing, covering what was found, what's attracting pests, and the plan
- A service log kept on site, paper or digital, with every visit's date, products used, target pests and the technician's name
- Product safety sheets and license information ready for any inspection or audit
- Advice, not just spraying. Sanitation, storage and repair recommendations come first. At the time of service our exclusion experts will inspect and give you an estimate for any repairs (exclusion) needed to keep pests from getting back in
- Service on your schedule, early morning, after hours or weekends, so customers and tenants never see us working
Signs you need more visits than you're getting
- You're seeing live pests between visits
- The same problem comes back at the same time every year
- A health inspection, tenant complaint or online review mentioned pests
- A neighbor, in the next unit or the next storefront, is having a problem
- You've changed something: a new menu, a new tenant, new landscaping, construction next door
Frequently Asked Questions
How often should a house get pest control?
Only when there's a problem, for most homes. Quarterly service makes sense for homes next to open space, with mature landscaping, in the foothills, or with the same pests coming back every year.
How often should a restaurant get pest control?
Monthly. Food, water and daily deliveries give cockroaches, mice and flies everything they need, and German cockroaches breed fast enough that a longer gap lets them take hold.
Does Colorado require restaurants to have pest control?
Colorado's retail food rules require food businesses to keep their premises free of insects and rodents. They don't say how often a pest company has to come. A service log shows an inspector what you're doing about it.
How often should an apartment building get pest control?
On a regular schedule for the outside and common areas, with individual units treated when there's activity. Mice, German roaches and bed bugs travel between units, so treating one apartment alone rarely solves it.
Do I need a contract?
Not for homes. For businesses, most accounts run on a regular schedule because that's what keeps the problem small, and we quote it after a walk-through.
Looking for more? Read about commercial pest control or browse the full pest library.
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