Signs your office has a pest problem

Pests are a problem for any office. They carry diseases, cause untold damage to furniture, and generally make for an unpleasant working environment. If you’re spending 8 hours per day, 5 days per week (at least) in an office, the last thing you want is a rodent or bug infestation. We’ve touched on ways to get rid of mice in the office, it’s important to identify that you have a pest problem in the first place. Here are five signs that your office needs pest control.


Finding droppings dotted around is one of the most obvious signs that you have an office pest. The size and shape of the droppings will give an indication as to which type of pest it is. For example, mouse droppings are small, dark pellets between 3 and 6mm long – a similar size to a small grain of rice. Mice can leave as many as 80 droppings on a single day and you’ll often find them in areas where food is stored, such as kitchen cupboards. They’re dry, relatively warm, and provide food – perfect conditions for mice. Rat droppings are very similar, just slightly larger. 

Insect droppings are far harder to spot because they’re much smaller, more closely resembling black pepper. You’re unlikely to spot insect droppings by accident, but if you notice any other signs on this list and start looking around, seeing small pepper-like pieces under furniture and other dark, dry places will confirm your suspicions.


Another telltale sign of office pests (and a reason they’re such a nuisance) is the damage they cause. Rodents will often gnaw through cables, the backs of wooden cabinets, and cardboard boxes you may have lying around.

Furniture is also a target for most pests, including rodents, moths, and carpet beetles. You’ll know that you have a pest problem if random, irregular holes suddenly appear on rugs, chairs, and/or sofas. If this is the case, you may want to check the wardrobe or cloakroom to see if there’s any damage to coats and scarves that have been left there for a while. Also, if you have plants in your office, bite marks on the leaves could be another sign of office pests.


Look in remote, hardly-accessed areas in and around your office building. You may find a nest or at least evidence of nesting. Rodents will try to nest in areas they feel safe and secluded, and will use almost anything they can find. This includes grass, leaves or many even some office supplies and refuse, such as paper and general waste.

Other pests such as wasps will also make nests, often in a roof. They’re often harder to spot unless you’re specifically looking for them because they’re built very high up, well out of a person’s reach (in most cases). If you spot what you may suspect to be a wasp nest in or around your office, don’t attempt to remove it yourself – call an expert!

We’ve mentioned visual signs, but sometimes there are other markers of pest activity.


While pests are small, they’re often not particularly quiet. Hearing rustling, scuttling and scratching behind walls, under floorboards, and behind ceilings is a sure sign of pest activity. Rodents are more active at night, so you’ll have more chance of hearing them if you’re working a late shift. That being said, if your office is generally rather quiet, it’s likely that they’ll feel safe enough to move around and you’ll be able to hear it.

If a bug’s nest has been made below the floorboards or in the ceiling of your office, you may even hear the faint hum of wasp or moth activity.


A noticeable change in the smell of your office can be a sign that you have a pest infestation – especially if it’s a bad smell. Bed bugs have a very musty smell that’s sometimes likened to coriander (negatively), and cockroaches can be described as smelling oily. A mice infestation is often accompanied by an ammonia-like smell which comes from their urine. The larger the infestation, the stronger the smell. A good pest controller will often be able to tell which kind of pest problem you have just by the smell alone!

If the smell of your office has changed for the worse without an apparent reason, it’s time to call a pest control expert.

If you’ve noticed any of these signs around your office or place of work, then get in touch with us as soon as possible. Our pest control experts will quickly be on hand to survey the area and provide the most effective treatment. Leaving the problem untreated for too long can, in extreme cases, cause serious structural damage to your building and cost a lot to repair. Give Inoculand a call on 020 3405 5000 today.