Fly Control At A Glance
- Most people pay £90–£200 for professional fly control outside London, rising to £120–£240 in London and the South East.
- The price depends on the fly species, where they are breeding, the property size, and whether the source is inside or outside.
- Clearing flies is really about finding and removing the breeding source — a rotting carcass, drain, bin or damp organic matter — not just killing the adults.
- Cluster flies in lofts, drain flies in bathrooms and fruit flies in kitchens each need a different approach.
- Treatment usually covers a survey, insecticidal treatment and source advice; commercial sites may add electric fly killers or fly screens.
- Dealing with the source — bins, drains, decaying matter — is the cheapest and most lasting way to keep flies away.
- Get a fixed price for professional fly control — check prices and book online or call to talk through the right treatment for your fly problem.
How Much Does Fly Control Cost In 2026?
Professional fly control in the UK costs £90–£200 on average, rising to £120–£240 in London and the South East. That covers a technician visit, a survey to identify the species and locate the breeding source, and an appropriate insecticidal treatment.
The most important part of fly control is finding where the flies are coming from. A sudden swarm of large flies often points to a dead animal in a loft or wall cavity; drain flies breed in the gunk inside waste pipes; fruit flies come from over-ripe food and recycling; cluster flies gather in lofts to overwinter. Because each species behaves differently, the treatment and the price vary. A straightforward indoor treatment sits at the lower end; a job that involves tracing a hidden carcass, treating a large loft, or repeat visits for a persistent commercial problem sits higher.
Here is what you can expect to pay for fly control across the UK:
| How you book | Rest of UK | London & South East |
|---|---|---|
| Single treatment visit | £90 – £150 | £120 – £180 |
| Treatment with source removal | £120 – £200 | £150 – £240 |
| Cluster fly loft treatment | £120 – £200 | £150 – £240 |
| Commercial / recurring plan | from £150 | from £180 |
Figures include VAT and reflect 2026 market rates. Your exact price depends on the species, source and your postcode — get a fixed quote here.
Fly Control Cost By Fly Type
Different flies breed in different places, and that shapes both the method and the cost. The table below shows the common types.
| Fly type | Where they breed | Typical approach & cost |
|---|---|---|
| House / bluebottle flies | Bins, decaying matter, carcasses | Source removal + treatment, £90 – £200 |
| Cluster flies | Lofts and roof spaces (overwintering) | Loft treatment, £120 – £200 |
| Drain flies | Organic sludge in drains and pipes | Drain treatment + advice, £90 – £180 |
| Fruit flies | Over-ripe food, recycling, spillages | Treatment + source advice, £90 – £160 |
| Commercial fly problem | Kitchens, food premises, waste areas | Ongoing plan + fly units, from £150 |
Fly control is mostly labour and product. The biggest cost driver is how hard the breeding source is to find and reach.
What Affects The Cost Of Fly Control?
Several factors decide where you land in the ranges above.
1. The Fly Species
Each species needs a different approach. Cluster flies in a loft, drain flies in a bathroom and fruit flies in a kitchen call for different treatments, so identifying the species correctly is the first step and shapes the price.
2. Finding And Reaching The Source
The cost often turns on the breeding source. A visible over-ripe fruit bowl is easy; a dead bird or rodent decomposing in a wall cavity or loft takes time to locate and remove, and that hunt adds to the bill.
3. Property Size And Type
A single room is quicker than a large house or a commercial kitchen. Big loft spaces with cluster flies, or food premises with strict hygiene requirements, take longer and cost more.
4. Indoor Versus Outdoor Source
An indoor source is contained and quicker to treat. A source outside — an overflowing bin store, a compost heap, or standing organic waste — may need the surrounding area treated and the cause addressed to stop flies returning.
5. Number Of Visits
A one-off swarm usually clears in a single visit once the source is gone. Persistent or seasonal problems, and commercial premises, may need repeat visits or an ongoing plan.
6. Your Location
London and the South East add roughly 20–30% to fly control, reflecting higher labour and travel costs.
What's Included — And What's Not
Typically included in a fly control price:
- A survey to identify the fly species and locate the breeding source
- Insecticidal treatment of affected areas
- Advice on removing the source and preventing return
- Basic loft or drain treatment where that is the source
- A guarantee period with some providers
Usually charged separately or excluded:
- Removing a large or hard-to-reach carcass, or associated building access
- Supplying and fitting electric fly killers or fly screens (mainly commercial)
- Drain jetting or plumbing work for severe drain-fly cases
- Ongoing maintenance contracts for food premises
Always get the scope in writing so the final bill matches the quote.
Can You Do It Yourself?
For everyday flies, DIY works well. Removing the source — emptying bins, clearing over-ripe food, cleaning drains and fixing damp — is the single most effective step, and shop-bought fly sprays, traps and sticky ribbons (£3–£15) deal with the adults. Fly screens on windows keep them out in summer.
Call a professional when flies keep swarming and you cannot find the source, when the cause is a decaying animal in a loft or cavity, when cluster flies overwhelm a loft each autumn, or for any food business that must meet hygiene standards. A technician will trace the breeding site you cannot find, treat large or awkward spaces safely, and advise on longer-term prevention.
How To Save Money On Fly Control
- Deal with the source first — bins, drains, decaying matter and damp are what flies breed in, and removing them often solves the problem for free.
- Fit fly screens on windows and doors to keep flies out in summer at low cost.
- Clean drains regularly with hot water and a drain cleaner to stop drain flies breeding.
- Store food and recycling sealed so fruit flies have nothing to feed on.
- Act on cluster flies before autumn — sealing loft gaps early is cheaper than repeat treatments.
- Get 2–3 quotes and check whether source removal is included.
How To Hire A Good Pest Controller
Fly control uses professional insecticides and sometimes work in lofts and voids, so choose a qualified, insured technician. Look for membership of the British Pest Control Association (BPCA) or NPTA, confirm technicians are trained and certified to apply pesticides safely, and check public liability insurance. Ask for reviews, and get a written quote covering the treatment and any source removal.
A good technician identifies the species, hunts down the breeding source rather than just spraying the adults, and gives you practical advice to stop the flies returning.
With Fantastic Services, you get vetted, insured pest control technicians, transparent pricing and online booking — describe the problem and get a price up front.
Frequently Asked Questions
How Much Does Fly Control Cost In The UK?
In 2026, professional fly control costs around £90–£200 across most of the UK, rising to £120–£240 in London and the South East. The species, how hard the breeding source is to find, and property size all affect the price.
Why Do You Suddenly Have Lots Of Flies In One Room?
A sudden swarm of large flies in one room, especially an upstairs room or loft, often means an animal has died in a wall cavity or roof space and flies are breeding on it. A technician can trace and remove the source.
What Are Cluster Flies And How Are They Treated?
Cluster flies gather in large numbers in lofts and roof spaces to overwinter, then reappear on warm days. Treatment involves an insecticidal treatment of the loft space and sealing gaps where they enter, usually in a single visit.
How Do You Get Rid Of Drain Flies?
Drain flies breed in the organic sludge inside drains and pipes. Cleaning the drains thoroughly removes the breeding material, and a technician can treat persistent cases. Regular drain cleaning stops them coming back.
Can You Get Rid Of Flies Yourself?
Often, yes. Removing the source — bins, decaying food, dirty drains, damp — plus fly sprays, traps and window screens deals with most everyday fly problems. Call a professional if flies keep returning or you cannot find where they are breeding.
Are Fly Treatments Safe Around Food And Pets?
Professional treatments are applied by trained technicians and, in kitchens or food areas, chosen to be appropriate for those settings. You will be given specific advice on covering food and keeping pets away until treated areas are safe.
