Johnson's | Flea Control | Household Insecticidal Spray - 400ml

Johnson's Household Insecticidal Flea Spray 400ml

Protect your home and break the cycle of flea infestations with Johnson's Household Insecticidal Flea Spray. Specially formulated for use on carpets, rugs, soft furnishings, pet bedding, and skirting board crevices, this fast-acting aerosol delivers direct contact protection against adult fleas, larvae, and other crawling pests across Ireland & UK.

Designed as a fine, lightweight mist, a little goes a long way without heavily soaking your fabrics. Used as part of a complete household pest control routine, it helps restore comfort to your living spaces while keeping pest populations under control.

How This Spray Works (And Does It Kill Flea Larvae?)

Yes, this spray kills both adult fleas and flea larvae on contact!

To effectively clear a home infestation, it helps to understand how different flea sprays operate:

• Direct Contact Knockdown (This Spray): Formulated with synthetic pyrethroids (Permethrin & Tetramethrin), this spray acts as a neurotoxin to active insects. When adult fleas or crawling flea larvae make direct contact with the treated surface or mist, it rapidly paralyzes and eliminates them. This spray is designed for immediate relief and should be reapplied weekly or as required during an active infestation.

• How It Differs From IGR Sprays: Other products on the market contain an Insect Growth Regulator (IGR), such as S-Methoprene. IGRs act like a "birth control" for fleas—they do not instantly knock down adult insects, but instead prevent microscopic eggs and early-stage larvae from maturing, providing residual protection for up to 6–7 months.

• The Ideal Household Strategy: While an IGR breaks future generations long-term, a contact insecticide spray like Johnson's Household Flea Spray gives you immediate knockdown power against active, biting fleas and larvae hiding in carpet fibres today.

Key Benefits

• Kills Fleas & Larvae on Contact: Synthetic pyrethroid formula targets active adult fleas and emerging larvae crawling through carpets, rugs, and soft furnishings.

• Fine Mist Formula: Provides wide, effective coverage without drenching or soaking your carpets and pet bedding.

• Targets Hidden Hotspots: Perfect for treating dark crevices, skirting board cracks, and flooring gaps where 95% of flea life stages hide.

• Easy Application: Simple aerosol application requires no specialist equipment.

• Part of an Integrated Treatment Plan: Pairs perfectly alongside a pet-specific Spot-On treatment or oral flea tablet to cover both animal and environment.

Technical Specifications

Directions for Use

1. Prepare the Room: Vacuum all carpets and soft furnishings thoroughly before spraying. Vacuuming stimulates dormant pupae to emerge, making them vulnerable to treatment.

2. Clear the Area: Remove all children and animals (including birds, reptiles, and fish) from the treatment area. Leave pet bedding in the room, as this is a primary flea hiding spot.

3. Apply the Spray: Hold the can approximately 38cm (15") away from surfaces. Spray a fine mist in a sweeping motion for roughly 8 seconds per square metre.

4. Dry & Air Out: Close doors and leave the room for at least 30 minutes to allow the mist to dry. Open windows and air the room thoroughly before allowing children or pets back inside.

⚠️ Critical Warning — Homes with Cats

Permethrin is highly toxic to cats. While this spray is intended for household fabrics rather than direct application on pets, extreme caution must be taken in households with felines. Keep cats completely out of treated rooms until all fabrics, carpets, and bedding are 100% dry and the space has been fully ventilated. If you suspect your cat has come into contact with wet spray or shows signs of distress (drooling, twitching, unsteadiness), contact a vet immediately.

Frictionless Ireland, UK & EU Shipping (No Customs Fees)

At Pet Connection, we dispatch all orders directly from our commercial warehouse in Newry, Northern Ireland. Operating under the unique trade guidelines of the Windsor Framework, we provide completely seamless delivery across the UK, Ireland, and the European Union. There are absolutely no customs duties, import tariffs, or clearance delays on shipments moving from Northern Ireland to the Republic of Ireland or any EU destination. You receive fast, local, and entirely hassle-free delivery every single time.

Frequently Asked Questions

Does this spray kill flea larvae as well as adult fleas?

Yes. The active ingredients (Permethrin and Tetramethrin) work as contact insecticides that kill both adult biting fleas and crawling flea larvae on contact when applied to carpets and bedding.

How long does protection last compared to an IGR spray?

This spray provides immediate contact knockdown against active fleas and larvae. Because it does not contain a long-acting Insect Growth Regulator (IGR), it should be reapplied weekly or as required while resolving an infestation. Sprays containing an IGR focus on halting egg development for up to 6 months.

Is this spray safe to use around cats?

You must exercise extreme caution. Permethrin is dangerous to cats. Keep cats in a separate room while spraying, and only allow them back into treated areas once carpets and soft furnishings are completely dry and the room has been thoroughly aired out.

Do I need to treat my pet at the same time?

Yes. Treating the home only addresses fleas in the environment. To stop new fleas from breeding, you must simultaneously treat your dog or cat with an approved spot-on treatment or oral flea tablet suited to their weight.

Will I have to pay customs fees when ordering to the Republic of Ireland?

No. Because Pet Connection dispatches directly from Northern Ireland, all orders shipped to the Republic of Ireland and the rest of the EU are completely exempt from customs duties, border checks, and import clearance fees.