How can I tell if I have mice?

Small dark droppings (3–6mm) along skirting and inside cupboards, a faint ammonia smell, gnawed food packets, and light scratching in walls or ceilings at night are the most common signs of a mouse infestation.

How quickly can you attend?

We typically attend within 24–48 hours across Hertfordshire, and prioritise visits where mice are active in kitchens, food businesses or properties with vulnerable occupants.

Are mice treatments safe for children and pets?

Yes. We use professional snap traps and tamper-resistant bait stations placed in concealed areas out of reach of children and pets, and we follow strict best-practice guidelines for all rodent treatments.

How many visits will it take to clear mice?

Most mouse jobs are completed in 2–3 visits — an initial survey and treatment, a follow-up to check activity and replenish bait, and a proofing visit to seal entry points.

Do you find and seal where mice are getting in?

Yes. Mice can squeeze through gaps as small as 6mm, so proofing is essential. We seal gaps around pipework, air bricks, cables, door thresholds and skirting using mouse-proof materials.

Why should I deal with mice quickly?

Mice contaminate food and surfaces with droppings and urine, can spread diseases such as Salmonella, and gnaw cables and pipework — creating fire and water damage risks. They also breed very rapidly.

Emergency response

Mice control across Hertfordshire

Fast, discreet treatment for house and field mice — with proofing and prevention to keep your kitchen, loft and storage areas mouse-free.

01727 601 007 Request a quote

Same-day appointments where available
House mouse and field mouse treatment
Discreet visits for kitchens, lofts and storage areas
Proofing of gaps as small as 6 mm
Clear reports and aftercare advice

Our mice control process

Inspection

We identify nesting areas, droppings and entry points around your property.

Treatment

Targeted mouse control placed safely around children and pets, monitored over follow-up visits.

Proofing

We seal gaps and advise on storage and hygiene so mice don't return.

The house mouse (Mus musculus) is the most common mouse found in UK homes — small, agile and able to squeeze through gaps as little as 6 mm.

Habits & behaviour

Inquisitive and agile — can squeeze through gaps as small as 6 mm
Prefer warm, quiet spaces such as kitchens, lofts and behind appliances
Leave 50–80 droppings per night along their regular travel paths
Nest using shredded paper, fabric, insulation and other soft materials
Breed rapidly; a single pair can produce hundreds of offspring in a year

Damage & risks

Gnaw through packaging and food containers in cupboards and pantries
Chew wiring, causing appliance failures and potential electrical fires
Damage insulation, plasterboard and wooden structures while nesting
Spread diseases including hantavirus, salmonella and lymphocytic choriomeningitis
Create unpleasant odours and attract other pests through urine trails

Rodent Proofing Checklist

Effective proofing is the most important long-term solution for preventing rodent infestations. We seal, mesh and secure every access point using professional-grade materials.

External Proofing

☐Seal gaps around pipes entering the property
☐Fit wire mesh to air bricks and vents
☐Repair damaged brickwork
☐Seal holes in external walls
☐Fit bristle strips to garage doors
☐Install door sweeps on external doors
☐Repair damaged soffits and fascias
☐Cover drain openings where appropriate
☐Install rodent guards on drainage systems
☐Repair broken air vents
☐Seal gaps around utility cables
☐Trim vegetation touching buildings
☐Remove ivy growing up walls
☐Cut back overhanging tree branches
☐Store firewood away from buildings

Internal Proofing

☐Seal gaps under kitchen units
☐Proof around boiler pipework
☐Seal holes behind appliances
☐Proof around electrical cable entries
☐Install mesh behind kickboards
☐Seal loft access points
☐Proof service risers and ducting
☐Seal gaps around internal pipe runs
☐Repair damaged floorboards
☐Seal wall void access points

Loft & Roof Areas

☐Inspect loft insulation for rodent activity
☐Seal eaves entry points
☐Proof around roof vents
☐Repair broken roof tiles
☐Install mesh to loft ventilation points
☐Check chimney voids
☐Seal gaps around solar panel cable entries

Garden & Outbuildings

☐Proof sheds and summerhouses
☐Seal gaps under shed bases
☐Fit metal mesh to outbuilding vents
☐Secure compost bins
☐Store animal feed in sealed containers
☐Remove clutter and harbourage
☐Elevate stored materials off the ground
☐Proof decking voids where required

Hygiene & Prevention

☐Remove accessible food sources
☐Store food in sealed containers
☐Clean spillages promptly
☐Secure refuse bins
☐Remove bird food at night
☐Manage fallen fruit from trees
☐Regularly inspect for new proofing defects

Common Proofing Materials

Stainless steel wire wool
Rodent-proof expanding foam
Galvanised steel mesh
Welded wire mesh
Aluminium kick plates
Door brush strips
Stainless steel vent covers
Concrete mortar
Sheet metal flashing

Proofing Note

A hole as small as 6 mm can allow a mouse entry, while a rat can squeeze through openings of approximately 15–20 mm. Effective proofing is often the most important long-term solution for preventing rodent infestations.

Ask any question about mice

Type a question below and our AI assistant will answer instantly — no waiting, no forms.

Mice: seasonal advice & guides