Cluster Fly Control

Residential & Commercial Cluster Fly Control

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Cluster flies are a common pest throughout the UK and Europe. They tend to be around 8mm long, and dark in colour. They are most easily identified by their tendency to hibernate in large groups.

The presence of a large number of flies in a loft or attic space most likely indicates a cluster fly infestation, particularly in the autumn months. Cluster flies are similar in appearance to houseflies, but exhibit vastly different behaviour, hibernating throughout the winter in warm spaces such as lofts, attics, and historically, hollow trees, before emerging again in spring.

A cluster fly infestation can be difficult to deal with, due to the tendency of cluster flies to hibernate in hard to reach areas, such as cracks in walls, and cladding. In addition to this, the sheer number of cluster flies present in a property can be overwhelming. The best course of action for cluster fly removal is to contact a pest removal professional, such as East Anglian Pest Control, who will evaluate the issue, create a suitable plan, and implement it safely and effectively.

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Commercial & Residential Cluster Fly Control

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CLUSTER FLIES

The obvious sign of a cluster fly infestation is to see a large quantity of lame or dead flies. It’s also very common to find them in your loft, in sunken spot lighting or under insulating felt layers. Cluster flies typically return year after year, unless eaves and other entry ways are adequately sealed.

Identifying a Cluster Fly Problem

Cluster fly infestations are relatively easy to identify. The following signs are sure indications of a cluster fly infestation – especially when noticed in Autumn or Winter.

  • A large quantity of dead or lame flies present in warmer, or lesser used areas of a property. Cluster flies can be found, both alive and dead, around windows, in attics, and in insulation.
  • A sickly sweet, honey or buckwheat-like smell. The more flies present in a space, the more intense this smell will be. Cluster flies use this scent to locate and return to hibernation sites in following years.
  • A large group of flies, in a ‘cluster’ (as the name cluster fly suggests). Cluster flies will appear to be either dead, asleep, or sluggish if hibernating in a property during Autumn or Winter. They can often be found in sunny or warm spaces by windows, in attics, or between cladding. This can make them hard to access for extermination.

If any of these signs are seem familiar, it is important to combat the issue as soon as possible in order to prevent further infestation. East Anglian pest control are specialists in cluster fly and flying insect control, and able to devise specialised solutions for a wide variety of properties and infestation issues. Get in contact now to arrange a consultation.

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East Anglian Pest Control’s
Cluster Fly Control Treatments

Our BPCA and TEC certified technicians have years of experience in devising and employing effective cluster fly and flying insect control treatments.

East Anglia Pest Control will offer an initial consultation and inspection of the affected property, before proceeding with a solution tailored to your requirements. In the case of cluster flies in particular, these solutions often include the use of professional grade insecticides (which may be in spray form), or micro-vacuuming. Preventative measures may also be employed to ensure cluster flies do not return to the property in the year following treatment. This may include the installation of fine mesh fly screens, and a deep clean of affected surfaces to remove the cluster fly scent used for hibernation site location.

A professional service is often the most effective, and safe way in which to deal with a cluster fly infestation, and the sooner the issue is dealt with, the better. Don’t hesitate – get in contact with us today.

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Our Simple Process For

Comprehensive Cluster Fly Pest Control

If you require any of the above domestic and commercial pest control services and are located within the Suffolk and East Anglia areas then please do not hesitate to contact us as one of our professional pest control technicians will be more than happy to help.

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Call or Book Online.

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Step Two

Describe your pest problem

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We'll provide a full quotation for the work required and ensure you have a clear understanding of our findings and the options available.

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Cluster Fly Pest Control Services

Pest Control Information

East Anglian Pest Control has over 34 years of experience in the pest solution industry. We like to keep our clients up to date with pest information. Below are our latest articles related to insect pest control.

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Cluster Fly

Frequently Asked Questions

Why are there flies in my loft?

The presence of a large number of flies in a loft or attic space most likely indicates a cluster fly infestation, particularly in the autumn months. Cluster flies are similar in appearance to houseflies, but exhibit vastly different behaviour. Cluster flies hibernate throughout the winter in warm spaces such as lofts, attics, and historically, hollow trees, before emerging again in spring.

Preventative measures can be taken to keep cluster flies out of properties, such as sealing entry points, however, once they have entered and begun hibernating, it is possible to remove them using DIY methods, or, by hiring a professional pest controller.

What attracts cluster flies?

Cluster flies invade homes with the intention of finding an enclosed, warm place in which to hibernate for the duration of Autumn and Winter, often arriving in groups of hundreds or thousands. Spaces such as attics, lofts, or sheds, especially those with easy access points are highly attractive to cluster flies. The same can be said for spaces with high sunlight exposure Cluster flies are often also found behind cladding on exterior walls.

Not much can be done in terms of removing these attractors, however, potential access points can be sealed in an attempt to deter these pests.

When is cluster fly season?

Cluster flies tend to appear in properties in preparation for hibernation, gathering in large groups in sheltered, unused spaces, such as attics, or on windowsills. This generally occurs around Autumn in the UK, as temperatures begin to drop. They will remain in the property throughout winter unless disturbed, and be awoken by rising temperatures in spring. After this, they will return to the outdoors to lay eggs.

How do I get rid of cluster flies?

The methods used for removing cluster flies vary in effectiveness.

The success of preventative measures tends to be limited due to the small size of the flies themselves. The installation of fine mesh fly screens, and the sealing of any obvious entrances will assist in keeping cluster flies out, but other measures must be taken.

Insecticides widely available to the public will effectively kill exposed flies, however, cluster flies tend to hide deep in cracks or small spaces, wherever they are hibernating. A vacuum cleaner may assist in removing these flies, but the effectiveness of this depends on the space in which the flies are hibernating.

The best option for cluster fly removal is to contact a professional in pest control, who will be able to assess the situation, create a tailored plan of action, and implement it safely and effectively.

Do cluster flies smell?

When gathered in large groups, or when crushed, cluster flies tend to give off a sickly smell, which is often described as being similar to buckwheat or honey.

How do I stop cluster flies returning?

Cluster flies use their distinct, honey-like smell to locate previously used shelter sites. Unfortunately, this smell may still linger for flies, even after cleaning. The most effective way around this is ensuring all adult flies are killed whilst they are in the space in which they are hibernating, ensuring there are no flies left to return the following year.

In addition to this, preventative measures can be taken in order to discourage cluster flies from hibernating in a property again. Keep windows and doors shut, or install fine mesh screens over them. Keep curtains closed in order to block out sunlight.

A professional pest controller will ensure all necessary preventative measures are taken when treating a property for cluster flies.

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