Spider control

Whether you are dealing with a seasonal influx of common house spiders or are concerned about the spread of Noble False Widows, a professional pest controller provides the expertise and equipment needed to tackle the problem safely and effectively.

What Does the Work Involve?

• Comprehensive Inspection: Identifying species, locating nesting sites in lofts or wall cavities, and spotting entry points like gaps in masonry or window frames.
• Physical Removal: Using industrial vacuums and specialized brushes to remove webs, live spiders, and hidden egg sacs from high eaves and corners.
• Residual Treatments: Applying professional-grade insecticides to "harbourage" points where spiders hide and "transit" points where they enter the home.
• Space Treatments: Using ULV (Ultra-Low Volume) fogging or "smoke" generators in enclosed spaces like lofts or cellars to reach deep into crevices.
• Monitoring: Placing discreet glue traps in strategic locations to monitor activity levels and confirm the effectiveness of the treatment.
• Proofing Advice: Providing a detailed report on structural gaps that require sealing to prevent future spiders from entering.

Typical Costs

The cost of spider control in the UK depends largely on the size of your property and the extent of the infestation. Most residential jobs are completed in a single visit, though severe cases may require a follow-up.

Prices typically include VAT and materials. Costs may rise if the technician needs specialist access equipment, such as long-reach ladders or scaffolding, to reach high exterior soffits and fascias.

How Long Does It Take?

• Standard Flat or Small House: 45 to 60 minutes for a thorough internal treatment.
• Large Detached Home: 1.5 to 3 hours, especially if external eaves and outbuildings are included.
• Loft Clearances: 1 hour, allowing time for the technician to navigate joists and apply treatments safely.
• Drying Time: You will typically need to vacate the treated rooms for 2 to 4 hours while liquid treatments dry.

DIY or Professional?

For a few wandering spiders, DIY methods like peppermint oil sprays or off-the-shelf "spider stop" aerosols are often sufficient. However, if you have a recurring problem or find numerous egg sacs, professional intervention is recommended.

Professional pest controllers have access to residual insecticides that remain effective for months, whereas supermarket products often only kill on contact.

If you suspect a "False Widow" infestation, professional help is safer. While their bite is rarely dangerous to healthy adults, a professional can ensure they are removed without risk to children or pets.

Choosing the Right Tradesperson

• Check Accreditations: Look for membership in the British Pest Control Association (BPCA) or the National Pest Technicians Association (NPTA).
• Verify Qualifications: A reputable technician should hold an RSPH Level 2 Award in Pest Management.
• Ask about Safety: Ensure they use products approved under UK law and can provide COSHH (Control of Substances Hazardous to Health) data sheets.
• Red Flags: Be wary of "doorstep" callers or anyone who cannot explain exactly what chemicals they are using in your home.

Questions to ask:

• How long do we need to stay out of the house after treatment?
• Is the treatment safe for my specific pets (e.g., cats, fish, or reptiles)?
• Do you offer a guarantee if the spiders return within 30 days?

UK Regulations

• COSHH: All professional treatments must comply with the Control of Substances Hazardous to Health Regulations.
• Biocidal Product Regulation (BPR): Only UK-approved chemicals can be used; your technician should be able to name the active ingredients.
• Health and Safety at Work Act: Technicians must use appropriate PPE and follow "working at height" safety protocols for external work.

Common Problems

• Ignoring the Source: Treating a living room while ignoring a heavily infested loft often leads to a "re-invasion" within weeks.
• Poor Proofing: Failing to seal gaps around waste pipes or under doors means new spiders will simply replace the old ones.
• Ventilation Issues: High humidity attracts the insects that spiders prey on; failing to address damp can keep the spider population high.
• Fish Tank Risks: Many spider treatments are highly toxic to aquatic life; failing to cover or move tanks is a common and costly mistake.

Frequently Asked Questions

Are the chemicals used safe for my pets?

Once dry, most modern residual sprays are safe for cats and dogs. However, they are often highly toxic to fish and reptiles, so tanks and enclosures must be sealed or moved before work begins.

Can a professional stop spiders from ever coming back?

No treatment can offer 100% permanent protection, as spiders can enter through the smallest cracks. However, professional proofing and residual sprays significantly reduce the population for several months.

Do I need to clean the house before the technician arrives?

Yes, it helps to vacuum thoroughly and move furniture away from the walls. This allows the technician to apply treatments directly to the skirting boards and corners where spiders travel.

How do I know if I have False Widows?

False Widows are usually dark brown with a bulbous abdomen and cream-coloured markings. They prefer dark, undisturbed corners like window frames or sheds; a professional can provide a definitive identification.

Should I remove the webs myself before the visit?

It is usually best to leave the webs in place. This helps the technician identify the species and the "hotspots" of activity, allowing for a more targeted treatment.