House mice

Fee for domestic customers:
Fee £76
VAT £15.20
Total £91.20

For commercial customers, we can provide treatment for commercial premises for rats, mice and some insect pests. Please contact us to arrange a free survey and quotation.

Covers 4 visits with the first being a combined survey and treatment visit. All baits are removed on the last visit. If additional visits are required these will be charged for.

Where do house mice live?

  • House mice can be found in houses, buildings, and other structures that give them shelter and protection such as sheds and garages. 
  • They nest where it is warm and dry, near to a good food source and are commonly found in partition walls, under floors, behind wall boarding and skirting boards, and in lofts. They will make nests of soft materials such as cloth, bits of paper and wool. 
  • They don't need water as they get what they need from their food. 
  • A mouse can get through a gap as small as the size of a ball point pen! 
  • They don't like bright lights and are mostly active at dusk and at night when they can be heard as they move around in search of food. 
  • They are good jumpers and climbers and can swim if they have to.

What do they eat?

  • Mice will eat anything. Anything humans eat, mice will eat too. 
  • They are very fond of cereal products, and prefer chocolate and biscuits to cheese. 
  • They will gnaw through packaging to get to food. 
  • They can survive on 3 - 4 g of food a day 
  • They are sporadic feeders and will take a little food from lots of different places, urinating and depositing their droppings as they go.

Are house mice harmful?

  • Mice can cause damage to structures. They have to gnaw continually to wear down their incisor teeth which grow very quickly. They will damage wood, cables, wire and pipe work. They can start fires by gnawing through electric wires. 
  • Mice damage food. They gnaw through packaging to get to food, and contaminate the contents with their urine, droppings and fur. 
  • Mice can spread diseases.

How can you tell if you have house mice?

  • regular sightings, in the house, shed or garage; 
  • droppings (like black grains of rice); 
  • gnawed holes in skirtings boards or around pipes; 
  • gnawed food packaging; 
  • scratching noises in the walls and on ceilings; 
  • a musky smell particularly noticeable when you first come into the house.

What should you do if you have mice?

Deal with them promptly - the faster you deal with them the less chance they will have to establish themselves and start to breed.

Get help from a professional pest control service or follow our "do it yourself" guide below.

Prevention is better than cure:

  • don't leave open food out overnight. 
  • don't leave uneaten cat or dog food out in dishes overnight. 
  • remove all food spillages when they happen. 
  • empty kitchen bins frequently 
  • store food in rodent proof metal containers. 
  • keep your yard and gardens free from waste and spills of refuse 
  • regularly clean behind cookers, fridges, freezers and washing machines to stop build up of food debris 
  • seal structural defects in the house to prevent mice gaining access to your home.

Don't let mice in - proof your home

  • use brush strips under doors where there any gaps (a mouse can get through a hole the size of a ball point pen) 
  • seal all gaps around water, gas and waste pipes with sand and cement, wire wool or proprietary fillers. 
  • check air bricks and repair any that are damaged of fit a rodent cover across the openings.

DIY treatments

If you want to "do it yourself" then the best approach is to use a combination of traps, rodenticides and good hygiene measures – but don’t forget, whilst DIY products can be used, and may be suitable for some circumstances, where the problem persists or is wide spread than professional help will be needed.


Mice are inquisitive so traps can be very effective. But they are quick at learning to avoid situations that are dangerous to them, and will become trap shy if traps are not baited and placed correctly and they manage to escape!

There are two main types of traps - those which kill the mouse and those which capture it alive for subsequent release.

Never use glue boards or sticky traps - these are cruel and inhumane and cause considerable stress and suffering.

Snap traps/Break back traps

  • Simple, inexpensive and effective 
  • Readily available at DIY stores, and supermarkets 
  • Bait the trap with chocolate, biscuit or cereal. Peanut butter is also very effective 
  • Set them behind objects, in dark corners, and in places where mouse activity has been identified e.g. under the sink and cooker, behind kickboards in the kitchen, behind bins, under the stairs 
  • Make sure you set the trap correctly - set them at right angles to the wall and the treadle (which activates the trap) must be next to the wall 
  • Use several traps and make sure you check them every day 
  • Remove dead mice promptly and dispose of them by double wrapping in a plastic bag and placing the bodies into your waste bin 
  • Reset the traps each time, and continue this procedure until you catch no more mice in the traps. It is unlikely that there will only be one mouse

Humane Mouse Traps

  • These are designed to trap the mouse alive. When the mouse goes into the trap to taste the bait the trap closes automatically, and the mouse cannot get out 
  • Available from hardware and DIY stores, and there are many different types 
  • Bait the trap with chocolate, biscuit, cereal or peanut butter 
  • Place them along the skirting boards, in corners or near mouse entry holes 
  • Use several traps and make sure that you check them twice a day 
  • Do not release the mouse into your garden or your neighbours garden as they will easily find their way back inside, and you'll end up catching the same mice time after time. Take the loaded trap to at least a mile away from housing and other buildings and release the mouse into a field or grassy area 
  • Reset the traps each time and continue until you catch no more mice in the traps

Keep traps out of the reach of children and only place them in areas where children and/or pets will not come into contact with them.

Handle traps with care to avoid personal injury.

Always wash your hands after dealing with mouse traps.


  • Only use commercially prepared rodenticides. These are available at hardware and DIY stores and supermarkets 
  • Poison should be put into a shallow dish and should be concentrated where mice are most likely to come into contact with it: under the sink, the cooker, the fridge, behind kitchen kickboards, in the bathroom airing cupboard. You will need to lay several bait stations no more than 1m apart 
  • Check and replenish the poison until no more is being eaten 
  • At all times poisons must be kept out of the reach of children and other animals 
  • Always follow the manufacturer’s instructions and if you can’t place the poison safely then do not use it 
  • Remove all mouse bodies promptly and double wrap and dispose of in the household bin 
  • Mice that are killed by poison may die in places that are very difficult to reach, and will smell until the bodies are completely rotted 
  • Make sure that you remove all uneaten poison bait and dispose of it safely according to the manufacturer's guidance. Do not leave uneaten poison in place - it will degrade over time and can lead to increased resistance in mice, and it may be eaten by non target species, such as cats, dogs and children

Remember - rodenticides are a poison. Always follow the manufacturer's instructions and keep out of the reach of pets and children.

Good hygiene

Prevention is always better than cure!

  • Don't leave open food out overnight 
  • Don't leave uneaten cat or dog food out in dishes overnight 
  • Remove all food spillages when they happen 
  • Empty kitchen bins frequently 
  • Store food in rodent proof metal containers 
  • Keep your yard and gardens free from waste and spills of refuse 
  • Regularly clean behind cookers, fridges, freezers and washing machines to stop build up of food debris 
  • Make sure your doors and windows fit properly 
  • Seal structural defects in the house to prevent mice gaining access to your home 
  • Don't let mice in - proof your home

What we can do about mice

Our pest control officers are highly trained and qualified to BPCA/RSPH standards. Not only will they treat the infestation they will also make sure that treatments are correctly placed, that you are informed about safety precautions, and have a written record, in case of accidental ingestion. They will also remove any mouse bodies that they find, and will apply de-odourisers to help with any smells. At the end of the treatment they will remove any left over bait and they will advise you of proofing measures and things that you can do to stop any further infestations.

Contact the Pest Control Service

For further information or to book a treatment by a qualified and experienced pest control officer please contact us


Contact details

Environmental Health
Britannia House

Phone : 01274 433926

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