Common Pest Problems in Office Buildings
Even the cleanest offices can attract pests. A few crumbs in the break room, a leaking pipe, or a gap under an exterior door can be enough to bring them inside.
Here's what we commonly see in commercial buildings.
Ants in Break Rooms and Kitchens
Ants have a way of finding every crumb and spill. They show up around coffee stations, sinks, trash cans, and anywhere employees keep snacks.
Wiping down the counter might get rid of the ants you can see, but it won't necessarily solve the problem. If they're coming back every day, there's likely a colony nearby.
Our ant control services focus on finding the source and treating the problem rather than just the ants on the counter.
Mice in Ceilings and Storage Areas
Mice don't need much space to get inside. Small gaps around pipes, utility lines, foundations, and doors can be enough.
Once they're in, suspended ceilings, wall cavities, and storage rooms give them plenty of places to hide.
You might hear scratching overhead, notice droppings behind office furniture, or find chewed packaging in a supply closet.
If employees are seeing mice during the day, it's time to investigate.
Spiders Around Windows and Storage Rooms
Spiders often turn up in basements, stairwells, storage closets, and near windows where other insects gather.
Most aren't dangerous, but nobody wants webs collecting around office entrances or spiders showing up in meeting rooms.
Our spider control services can help when spiders become a recurring problem.
Wasps Near Entrances and Outdoor Areas
Wasps and hornets can build nests around rooflines, doorways, exterior lights, and outdoor seating areas.
A nest next to the main entrance or employee break area can become a serious nuisance, especially during the summer.
Anchor Pest Services provides wasp and hornet removal for commercial properties.
Why Pests Keep Coming Back to Office Break Rooms
Office kitchens are busy places. People make coffee, heat up lunch, leave snacks on counters, and occasionally forget about food in the refrigerator.
Even with a cleaning crew, crumbs can collect behind appliances, spills can go unnoticed, and trash can sit overnight.
For ants, cockroaches, and mice, that's an easy food source.
A few habits can make a difference:
Keep snacks and dry food in sealed containers.
Empty kitchen trash regularly.
Wipe down counters and clean beneath appliances.
Fix leaking faucets and plumbing.
Avoid leaving food in desk drawers overnight.
If pests keep showing up despite regular cleaning, the problem may be coming from inside the walls, beneath cabinets, or outside the building.
That's when a professional inspection becomes worthwhile.
Mice in the Office? The Problem May Be Bigger Than You Think
A mouse spotted near the break room doesn't necessarily live there.
In office buildings, rodents can move through ceilings, wall voids, utility rooms, and storage spaces. They may travel across several floors or tenant suites without being noticed.
And the damage isn't limited to a few chewed snack wrappers.
Rodents can contaminate surfaces, damage stored materials, and chew on electrical wiring. For a business, that can mean unexpected repairs and interruptions.
Read more about how pest damage can affect commercial buildings.
Finding Out How They're Getting Inside
Setting traps may catch the mice already in the building, but it doesn't solve the problem if more can get in.
We look for signs of activity and possible entry points, including gaps around utility lines, damaged door seals, foundation openings, and other vulnerable areas.
We also check the conditions that may be attracting rodents, such as accessible food, cluttered storage rooms, or waste areas close to the building.
The goal is to deal with the current problem and reduce the chances of it happening again.
Pest Control for Multi-Tenant Office Buildings
When several businesses share one building, pest problems don't always stay within one tenant's space.
Mice can travel above suspended ceilings. Ants can enter through shared walls and plumbing openings. A problem reported in one office may have started somewhere else.
For property managers, this means looking beyond the suite where someone first spotted a pest.
Depending on the situation, we may need to inspect common areas, storage rooms, mechanical spaces, and nearby offices.
We also understand that tenants have their own schedules and daily operations. Inspections and treatments need to be coordinated so employees know when access is needed and whether they need to prepare anything beforehand.
Addressing the problem across the affected areas is often more effective than repeatedly treating one office.
Seasonal Pest Problems in New Hampshire Offices
Pest activity changes with the weather, and New Hampshire offices deal with different problems throughout the year.
Fall and Winter: Mice Looking for Warmth
When temperatures drop, mice look for warm places to shelter. Office buildings offer plenty of hiding spots, especially around utility rooms, storage areas, and suspended ceilings.
Fall is a good time to check door seals, foundation gaps, and other openings before rodents move inside.
Spring: Ants Start Showing Up
As the weather warms, ants become more active.
You may notice them near sinks, kitchen counters, windows, or exterior walls. If they keep returning, there may be a nearby colony that needs attention.
Summer: Wasps Around the Building
During summer, wasps and hornets may build nests near entrances, rooflines, parking areas, and outdoor seating.
It's best to have nests near busy walkways or doorways addressed before employees or visitors accidentally disturb them.
What to Expect From Anchor Pest's Office Pest Control Service
Every office building is a little different. Some have recurring mouse problems, while others deal with occasional ants or spiders.
We start by looking at what's happening in your building.
That may involve inspecting break rooms, storage areas, utility spaces, exterior doors, and other places where pests have been reported.
Once we understand the problem, we'll explain what we've found and recommend the appropriate treatment.
Depending on your property, service may involve:
Treating active ant, spider, or other insect problems.
Inspecting for mice and other rodents.
Identifying gaps and openings that allow pests inside.
Addressing pest activity around entrances and exterior areas.
Recommending changes that can help prevent repeat infestations.
Discussing regular service if your building has ongoing pest problems.
We'll also review any access requirements or scheduling concerns before work begins.
Pest Control Without Unnecessary Disruption
Your office still needs to function while a pest problem is being addressed.
Employees have meetings, clients come and go, and some rooms may contain sensitive equipment or confidential materials.
We'll discuss which areas need attention, what preparation may be required, and how the work can be coordinated with your business.
Some treatments may require temporary access restrictions. If you need service outside normal office hours, ask about available scheduling options when you contact us.
A Local Pest Control Company for New Hampshire Businesses
Anchor Pest Services has been serving New Hampshire since 2017.
We're a local company, and we know the pest problems that come with New England's changing seasons, from mice moving indoors in the fall to ants and stinging insects appearing in warmer weather.
We don't believe in treating every building the same way. A small professional office has different needs from a multi-story property with several tenants.
We'll inspect the problem, explain what we find, and recommend a practical way to address it.
Schedule Office Pest Control in New Hampshire
Tired of seeing ants in the kitchen? Hearing mice above the ceiling? Getting the same pest complaints from tenants?
Let's find out what's going on.
Call Anchor Pest Services at (603) 785-0118 or request an office pest inspection.
Questions from facility teams
Offices pest control FAQ
Written & reviewed by
VerifiedDaniel Brady
NH-Licensed Pesticide Applicator · License #782664 (NHDAMF, RSA 430)
Daniel Brady is the New Hampshire–licensed applicator behind Anchor Pest Services, a family-owned pest control company serving the Manchester area since 2017.
Last updated 2026-10-22
