What Attracts Cockroaches?
Quick answer: Cockroaches are mainly attracted by food, water, warmth and hiding places. In UK homes and businesses, the biggest cockroach attractants are crumbs, grease, food waste, leaking pipes, condensation, warm appliances, dirty bin areas, drains, cardboard, clutter, cracks, service voids and damp hidden spaces.
In London, cockroaches are especially likely to survive inside heated buildings such as flats, HMOs, restaurants, hotels, commercial kitchens, basement premises and managed blocks. A property does not have to be filthy to attract cockroaches. A clean flat or restaurant can still become vulnerable if there is a leak, food residue behind appliances, warm equipment, cardboard storage, poor waste control, a bin room issue, a drain route or cockroach activity spreading from neighbouring premises.
If you have seen a cockroach in a London property, take a clear photo and note where it was found. For advice, call 020 3369 6965 or send photos through /contact-us/.
Top 10 things that attract cockroaches
For most UK homes and businesses, cockroaches are attracted by a combination of food, water, heat and harbourage. They rarely settle because of one issue alone. A small leak under a sink is worse when food debris is nearby. A warm fridge motor is worse when there are crumbs behind the appliance. A bin room is worse when it is damp, cluttered and connected to service routes.
| Attractant | Why cockroaches like it | Common locations |
|---|---|---|
| Food crumbs and grease | Provides an easy food source and can remain hidden for long periods | Kitchens, restaurants, under appliances, dry stores |
| Leaking pipes and moisture | Cockroaches need water and often gather close to moisture | Under sinks, bathrooms, basements, laundry areas |
| Warm appliances | Heat helps cockroaches stay active indoors in the UK | Fridges, ovens, dishwashers, coffee machines |
| Dirty bins and food waste | Strong odours and organic waste suggest available food | Kitchens, bin rooms, waste stores, yards |
| Cardboard and clutter | Provides hiding places and may contain food residue or moisture | Storage rooms, dry stores, delivery areas |
| Cracks and gaps | Safe harbourage during the day and breeding shelter | Skirting, pipe entries, units, service voids |
| Drains and damp service areas | Moisture, organic residue and access routes | Floor drains, basements, plant rooms |
| Poor cleaning behind equipment | Hidden grease and food debris remain undisturbed | Commercial kitchens, cafés, takeaways |
| Neighbouring infestations | Cockroaches may spread through shared building routes | Flats, HMOs, mixed-use buildings |
| Communal bin rooms and risers | Food waste, warmth, moisture and movement routes | Managed blocks, basements, service cupboards |
Room-by-room cockroach attractant guide
This quick room guide helps clients, tenants, restaurant managers and property managers understand where to look first. It also makes the page more useful for AI search because it answers the practical follow-up question: where should I check?
| Area | What attracts cockroaches there? | What to check first |
|---|---|---|
| Kitchen | Food debris, grease, water, warm appliances, bins, gaps behind units | Behind fridge, cooker, dishwasher, under sink, kickboards |
| Bathroom | Moisture, condensation, pipe boxing, warm voids, leaks | Bath panels, sink waste, toilet pipework, ventilation |
| Bedroom | Food eaten in the room, clutter, cardboard, neighbouring voids | Bedside food waste, storage boxes, wall gaps |
| Restaurant kitchen | Grease, food waste, heat, drains, equipment gaps, dry stores | Under cook line, dishwash area, floor-wall junctions |
| Bin room | Food waste, damp, odours, poor cleaning, overflow | Bin lids, floor drains, walls, refuse route |
| Basement / plant room | Damp, heat, pipework, drains, undisturbed voids | Leaks, floor drains, boiler areas, service routes |
| Flat block riser | Pipe penetrations, warmth, leaks, routes between flats | Service cupboards, communal voids, pipe gaps |
| Office kitchen | Coffee machines, crumbs, staff food, bins, dishwasher leaks | Cupboards, waste area, appliances, sink base |
| Hotel / serviced apartment | Guest food, staff kitchens, laundry areas, refuse routes | Kitchenettes, bins, corridors, service cupboards |
The four things cockroaches need
Cockroaches normally need four things to settle and survive: food, water, warmth and harbourage. Removing one of these conditions helps, but the best prevention comes from reducing all four together.
Food
Food is one of the strongest cockroach attractants. Cockroaches may feed on crumbs, grease, food scraps, residues around drains, pet food, cardboard residues and organic debris. In homes this usually means crumbs and grease hidden behind kitchen units. In restaurants it often means food debris under cook lines, around dishwashers, in dry stores and near waste areas.
Water
Cockroaches need moisture. Leaking pipes, condensation, dripping taps, wet cloths, damp cupboards, dishwasher leaks and floor drains can all support activity. A clean kitchen with a slow under-sink leak can still give cockroaches enough water to survive.
Warmth
Warm indoor spaces help cockroaches survive in the UK. Fridge motors, ovens, dishwashers, boiler cupboards, heated risers, laundry rooms and commercial kitchen equipment can all provide warmth and shelter.
Harbourage
Cockroaches hide during the day. Cracks, voids, pipe gaps, loose tiles, kickboards, service risers, cardboard storage and cluttered cupboards give them safe spaces to rest and breed. This is why treatment should focus on hidden harbourages, not only the visible insect.
What attracts cockroaches in kitchens?
Kitchens are the most common cockroach problem area because they usually contain everything cockroaches need: food, water, warmth and hidden gaps. A kitchen can look clean from the front but still be attractive behind appliances, below kickboards and around pipe routes.
- crumbs under cupboards
- grease behind cookers
- food residue under fridges
- dishwasher moisture
- leaking sink waste pipes
- dirty plates left overnight
- unsealed dry goods
- pet food bowls
- open bins
- food waste bags
- cardboard packaging
- cracks behind units
- warm appliance motors
- gaps around pipework
Behind fridges and freezers
Fridges and freezers are common cockroach harbourage points because they provide warmth, darkness and protection. If food residue or moisture is nearby, cockroaches may remain there and breed. A client may only see cockroaches crossing the floor at night, but the main activity may be behind the fridge motor.
Behind ovens and cookers
Cookers and ovens can collect grease and food particles along the sides, behind the unit and below the appliance. In commercial kitchens, this risk is much greater because cook lines produce heat and grease every day.
Under sinks
Under-sink cupboards attract cockroaches because they often contain water pipes, waste pipes, gaps around pipe entries and hidden leaks. A slow leak under the sink can support cockroaches even if the worktops are clean.
Seen cockroaches in a kitchen?
Call 020 3369 6965 or send clear photos through /contact-us/. Tell us where the insect was seen, whether it was at night, and whether you have seen droppings, egg cases or baby cockroaches.
What attracts cockroaches in bathrooms?
Bathrooms attract cockroaches mainly because of moisture, condensation and pipe routes. They may not contain obvious food sources, but they can still provide water and access to hidden building voids.
- condensation
- leaking taps
- leaking toilet connections
- leaking bath panels
- pipe boxing
- gaps around waste pipes
- warm service voids
- damp cupboards
- poor ventilation
- wet towels on floors
- cracks around tiles or skirting
If cockroaches are repeatedly seen in a bathroom, the issue may not be limited to that room. In a flat, cockroaches may be using pipe routes, service risers or gaps connected to another unit. In commercial buildings, bathrooms and staff facilities can be linked to service corridors or damp voids.
A bathroom sighting should be taken seriously if cockroaches are also seen in the kitchen, if baby cockroaches are present, or if there are repeated night-time sightings.
Do drains attract cockroaches?
Drains can attract or support cockroach activity, especially where there is moisture, organic residue, broken drain connections, floor drains, damp basements or poor waste control. However, not every cockroach problem comes from drains. This distinction is important.
German cockroaches are more often linked with warm indoor kitchens, appliances, food areas and bathrooms. Oriental cockroaches are more often linked with damp areas, basements, drains, bin rooms and lower-ground service routes.
Drains or damp routes may be involved if:
- cockroaches appear near floor drains
- activity is in a basement or plant room
- sightings are close to bin rooms
- cockroaches appear on lower-ground floors
- there are damp smells or drainage defects
- several flats or units report activity
- cockroaches return after kitchen-only treatment
- there is a commercial kitchen, refuse room or service corridor nearby
A proper inspection should not guess. It should identify the species, location, moisture source, harbourage and movement route.
What attracts cockroaches in restaurants and commercial kitchens?
Restaurants, cafés, hotels, takeaways and commercial kitchens are high-risk environments because they contain constant food handling, heat, water, waste, deliveries, equipment and hidden cleaning challenges. In food premises, cockroach activity is also a hygiene and reputation issue, not just an insect problem.
Cockroach attractants in food premises include:
- grease under cook lines
- food debris behind heavy equipment
- floor-wall junctions with residue
- dirty drains or floor gullies
- dishwasher moisture
- leaking pipework
- unsealed dry goods
- poor stock rotation
- cardboard packaging
- cluttered dry stores
- waste bins without tight lids
- dirty bin rooms
- delivery areas
- service corridors
- commercial units next door
- damaged tiles, grout and wall cladding
- warm equipment motors
Commercial prevention priorities
A restaurant should focus on deep cleaning under and behind equipment, keeping dry goods sealed and off the floor, reducing cardboard storage, cleaning floor-wall junctions, checking drains and gullies, emptying and cleaning bins, repairing leaks quickly, maintaining pest monitoring records, training staff to report sightings, checking delivery areas and arranging professional monitoring in high-risk sites.
The cheapest response is rarely the safest response for a food business. Cockroaches can affect customer confidence, EHO readiness, staff morale, reviews and reputation. A professional inspection should look beyond the visible worktop and assess hidden harbourages behind equipment, under preparation counters, around dishwashers and in refuse areas.
Cockroaches in a restaurant, hotel or food business?
Call 020 3369 6965 for discreet London cockroach inspection, treatment and prevention advice. We can help identify the source, advise on cleaning and maintenance risks, and support a professional response.
What attracts cockroaches in flats and HMOs?
Flats and HMOs can attract cockroaches in several ways. Sometimes the issue starts inside one kitchen. Sometimes it is linked to a shared route, neighbouring unit, communal bin store or building defect.
Cockroach attractants in flats include:
- kitchen food debris
- warm appliances
- under-sink leaks
- gaps around pipework
- shared service risers
- bathroom pipe boxing
- neighbouring infestations
- communal bin rooms
- basement damp
- poor waste management
- commercial units below flats
- storage clutter
- repeated leaks in communal areas
Why repeated flat complaints need wider investigation
If one flat reports cockroaches once, a local treatment may be enough. If several flats report activity, or if cockroaches return repeatedly, the managing agent should consider whether the attractant is in the wider building.
Areas to check include communal bin rooms, service cupboards, risers, basements, plant rooms, pipe penetrations, leaks, drain routes, adjoining commercial units and voids behind communal walls. Repeated treatments in one flat may fail if the real harbourage is in a shared area.
Landlord or property manager dealing with repeat cockroach reports?
Send the postcode, property type, affected rooms and photos through /contact-us/. This helps decide whether the issue looks localised, communal or building-related.
Can a clean home still attract cockroaches?
Yes. A clean home can still attract cockroaches if there is water, warmth, access or harbourage. This matters because many clients feel embarrassed when they see cockroaches, but the professional approach should be calm and practical.
A clean home can still have cockroaches because of a leak under the sink, a warm fridge motor, pipe gaps behind kitchen units, activity from a neighbouring flat, cockroaches introduced in packaging, a communal bin room problem, damp basement routes, drains or service voids, cardboard storage, or hidden food residue behind appliances.
Cleanliness helps, but it is not the only factor. Cockroach control is about conditions, not blame. A spotless worktop will not solve the issue if cockroaches are living behind a dishwasher, inside a pipe void or in a shared riser.
Does cardboard attract cockroaches?
Cardboard can support cockroach problems because it provides hiding places and may contain residues, moisture or starch-based material. This is a particular risk in restaurants, dry stores, delivery areas, stock rooms, basements, storage cupboards, moving boxes, hotel back-of-house areas and cluttered flats.
For prevention, unpack deliveries quickly, keep stock off the floor, avoid storing unnecessary boxes, remove damp cardboard and do not let packaging build up near kitchens, bins or warm equipment.
What smells attract cockroaches?
Cockroaches may be attracted to smells that indicate food, grease, moisture or organic waste. Strong odours from bins, drains, food spillages and grease can all suggest available resources.
- food waste bins
- dirty drains
- grease traps
- unclean mop buckets
- rotting organic waste
- pet food
- damp cardboard
- leaking waste pipes
- old food behind appliances
In restaurants, bad smells often point to cleaning or waste-management weaknesses. In homes, they may point to bins, drains, pet feeding areas, hidden food residue or under-sink leaks.
What attracts cockroaches at night?
Cockroaches are mainly active at night because they avoid light and disturbance. They usually leave hidden harbourages to search for food and water when the property is quiet.
Night-time attractants include dirty dishes left out, crumbs on floors, food waste in bins, pet food bowls, standing water, damp sinks, warm appliances, quiet undisturbed kitchens, restaurant kitchens after closing and waste areas after service.
Seeing cockroaches at night is common. Seeing them during the day can sometimes suggest a heavier infestation, disturbance or overcrowded harbourages.
What attracts different cockroach species?
Different cockroach species prefer different conditions. This is why identification matters and why a treatment plan should not be based only on where one insect was seen.
| Species | Main attractants | Typical locations |
|---|---|---|
| German cockroach | Warmth, food debris, appliance motors, moisture | Kitchens, bathrooms, restaurants, hotels, flats |
| Oriental cockroach | Damp areas, drains, basements, bin rooms | Lower-ground areas, refuse rooms, plant rooms |
| American cockroach | Warm, humid, undisturbed service areas | Basements, plant rooms, large commercial buildings |
| Brown-banded cockroach | Warm indoor rooms, furniture, cupboards, appliances | Offices, hotels, flats, cupboards, warm rooms |
For help identifying the species, link this page to Types of Cockroaches in the UK.
What does not usually attract cockroaches?
Cockroaches are not usually attracted by people directly or by light itself. They are attracted by survival conditions. A room is less likely to attract cockroaches if it is dry, cool, uncluttered, free from food residue, free from leaks, well sealed, easy to clean and not connected to active service routes.
However, any room can become attractive if food is eaten there, if cardboard is stored there, if there is damp, or if cockroaches can enter from a neighbouring void.
What to do in the first 24 hours after seeing a cockroach
This section is important because clients often panic or start spraying the wrong products everywhere. A calm first response helps with identification and prevents the problem being spread.
| Step | What to do | Why it helps |
|---|---|---|
| 1. Take a clear photo | Photograph the insect from above and include something for scale if possible. | This helps identify whether it is likely to be a cockroach or another insect. |
| 2. Note where and when you saw it | Record the room, exact location and time of sighting. | Cockroaches seen at night, near food, water, drains or appliances give useful clues. |
| 3. Do not spray everywhere | Avoid random DIY spraying, especially in kitchens and food premises. | Sprays can scatter cockroaches deeper into voids and interfere with professional treatment. |
| 4. Remove obvious food and water | Clean crumbs, remove dirty dishes, empty bins, dry wet areas and check for leaks. | This reduces the resources supporting the infestation. |
| 5. Check for signs | Look for droppings, baby cockroaches, egg cases, shed skins or repeated night activity. | These signs help assess whether breeding is established. |
| 6. Call for advice | Call 020 3369 6965 or send photos through /contact-us/. | Early action is usually easier and less disruptive than waiting for activity to spread. |
Prevention checklist for homes and flats
Use this checklist to make a home less attractive to cockroaches. It will not always remove an established infestation, but it can reduce the food, water and harbourage that help cockroaches survive.
- store food in sealed containers
- clean under and behind appliances
- remove crumbs from floor edges and kickboards
- clean grease from cooker sides
- do not leave dirty dishes overnight
- empty bins regularly
- keep pet food areas clean
- repair leaking pipes and taps
- dry condensation where possible
- improve ventilation
- reduce cardboard storage
- seal small gaps around pipework where suitable
- declutter under sinks and storage cupboards
- report repeated sightings in flats or HMOs
- avoid moving infested items between rooms
Prevention checklist for restaurants and food businesses
Restaurants and food businesses need a stricter approach because of hygiene and compliance risks.
- maintain daily and weekly cleaning schedules
- clean under heavy equipment where possible
- clean behind fridges, ovens and dishwashers
- keep dry goods sealed and off the floor
- remove cardboard packaging quickly
- inspect delivery areas
- keep bin lids closed
- clean bin rooms and refuse routes
- repair leaks immediately
- check drains and floor gullies
- keep records of pest sightings
- train staff to recognise cockroach signs
- maintain professional pest monitoring
- act quickly after any cockroach sighting
- keep maintenance and pest-control recommendations on file
Prevention checklist for landlords and property managers
For landlords, agents and managing companies, cockroach prevention is not only about one tenant’s kitchen. It may involve the building.
- inspect communal bin rooms and waste-storage areas
- check basement damp and plant rooms
- inspect service risers and pipe cupboards
- seal unnecessary gaps around service penetrations
- repair leaks in communal areas
- check commercial units below flats where relevant
- investigate repeated complaints from the same stack of flats
- review cleaning standards in shared areas
- keep previous pest-control reports and recommendations
- arrange access for follow-up visits
- do not treat repeated flat complaints as isolated if the wider building may be involved
If complaints repeat, it is better to investigate the route than to keep paying for isolated treatments in individual flats.
When should you call a professional pest controller?
You should call a professional if you have seen more than one cockroach, cockroaches are in a kitchen or bathroom, you see baby cockroaches, you find egg cases, there are droppings behind appliances, activity is in a restaurant or hotel, cockroaches appear in a block of flats, drains, basements or bin rooms may be involved, DIY sprays have not worked, activity continues after cleaning, or you need advice for a landlord, freeholder or managing agent.
Bon Accord Pest Control provides professional cockroach inspection and treatment across London for homes, flats, restaurants, hotels, commercial kitchens, landlords and property managers. Call 020 3369 6965 or send photos through /contact-us/.
Useful related guides
FAQ: What attracts cockroaches?
What is the main thing that attracts cockroaches?
What attracts cockroaches in a clean house?
What food attracts cockroaches?
Does water attract cockroaches?
Why are cockroaches attracted to kitchens?
Why are cockroaches attracted to bathrooms?
Do cockroaches come from drains?
Are cockroaches attracted to dirty dishes?
Does pet food attract cockroaches?
Does cardboard attract cockroaches?
Are cockroaches attracted to warmth?
Are cockroaches attracted to light?
Why do I see cockroaches at night?
Why am I seeing cockroaches during the day?
What attracts cockroaches in restaurants?
Can one flat attract cockroaches to other flats?
Can cockroaches live behind fridges?
Can cockroaches live in bedrooms?
Do bins attract cockroaches?
How do I stop attracting cockroaches?
Should I use DIY spray if I see a cockroach?
When should I call Bon Accord Pest Control?
What should landlords check if tenants report cockroaches?
What should restaurants check after a cockroach sighting?
Need help identifying what is attracting cockroaches?
Call 020 3369 6965 or send photos, postcode and property details through /contact-us/. We can advise whether the issue looks like a kitchen, drain, bathroom, restaurant, flat or managed-building problem.
Cockroaches are a pest that can become terrifying once they have infested a property or place of business. It is vital to know the reason why cockroaches would enter your home, as this will help you effectively eradicate them from your property. Read on to learn more about what attracts cockroaches and how to prevent this.
After contamination, cockroaches will look for a dark and secluded spot to hide in until they can find an exit point. Dark spaces that provide refuge such as inside walls or under the kitchen counter may then become easy entry points. Once inside, it is likely they will remain there such as behind appliances where food spills might be found and it is difficult for someone to see them. It is best to get rid of cockroaches once you see one because if not, they may continue multiplying and cause the infestation to worsen over time.
Why are Cockroaches Attracted to Your Home?
What attracts roaches to your home? Cockroaches look for food, water and shelter which they can find in abundance in human-occupied dwellings. In the wild, cockroaches also look for decaying matter to eat and can live up to a month without food. However, in a home environment, they will seek out any kind of food source available such as crumbs on the floor, dirty dishes left in the sink or even pet food.
Water is another reason for cockroaches to visit your property because they need moisture to survive. A leaking pipe, a wet cloth left too long on the counter or allowing your bath to overflow are few of the reasons why water may be present near your home which will attract them in their search for sustenance. Repairing a broken fixtures right away will stop cockroaches from having easy access to water sources.
Shelter provides warmth for them to reproduce and shelter means just that -any dark, secluded spot that they can find to nest in. Areas for nesting include between furniture, under the sink, inside walls or behind appliances
How Can You Prevent Cockroaches from Entering Your Home?
There are a few things you can do to help keep cockroaches from entering your home in the first place. One is to ensure that your property is kept clean and free of food debris and spills. Wiping down the counters after preparing meals, sweeping up crumbs and putting food away in sealed containers can help to reduce the attractiveness of your home to these pests
Making sure there is no water leakage, either from broken fixtures or plumbing, is also crucial in preventing cockroaches. Check your drains regularly and fix any leaks right away
Sealing up any cracks or openings around windows, doors and baseboards is another effective method of keeping cockroaches from entering your home. Having a thorough inspection performed by a pest control service can help ensure that all possible entry points are sealed
Read more: about cockroach control services
Pest Advice for controlling Cockroaches from BPCA
5 Facts About Oriental Cockroach Infestation
Oriental cockroach is one of the three species of cockroaches commonly found in homes. It enters our home through sewers and drains, and may travel from nearby buildings (for example: kitchens and bathrooms), and even outdoors from leaf litter.
1. Oriental cockroaches prefer to live in moist areas, such as in sewers, drains and basements.
2. They come out at night and are active for about 1-1.5 hours after lights out
3. They can become dormant for several months (up to 3 years) when conditions get dry or there is a lack of food. They will usually emerge from dormancy when conditions are more favorable.
4. Oriental cockroaches can cause allergic reactions in some people, as well as asthma attacks.
5. They can spread at least 33 types of bacteria, including ones that can cause food poisoning, urinary tract infections, and diarrhea.


