Most cheap repellers emit a single fixed ultrasonic frequency. Pests adapt to it within weeks and the device becomes useless. Harmony Roots uses Dual-Wave Technology — continuously alternating ultrasonic and electromagnetic pulses — so pests never build tolerance. It stays effective for the full lifespan of the device, not just the first few weeks.

Yes — when it's done properly. Single-frequency devices have a poor track record because pests habituate to them quickly. The reason Harmony Roots works where others don't is the combination of ultrasonic and electromagnetic pulses, which target pests' nervous systems through multiple channels simultaneously. Most customers report a noticeable reduction in activity within 2–4 days.

Because ultrasonic waves alone can't penetrate walls, furniture, or flooring — which is exactly where bed bugs and rodents hide. The electromagnetic pulses travel through your home's existing wiring, reaching pests in cavities and hidden spaces that sound waves simply can't touch. It's the difference between a device that works on the surface and one that works throughout your home.

Most customers notice a reduction in bites and pest sightings within 2–4 days. Full results — meaning no activity at all — typically come within 7–10 days depending on the severity of the infestation. Keep the device plugged in continuously for best results. It works cumulatively, building a more hostile environment over time.

One device per room. The ultrasonic waves don't penetrate through walls, so each room needs its own unit for full coverage. For a typical UK two or three-bedroom home, three to four devices is usually sufficient. If you have a larger property or a severe infestation, we recommend starting with more rather than fewer.

None. Harmony Roots emits no chemicals, no radiation, and no fumes. It operates on ultrasonic frequencies completely inaudible to humans and pets. It won't affect your WiFi, your pacemaker, or any electronics. You can run it in a baby's bedroom without any concern whatsoever.

Completely. This was a core design requirement. No toxins enter your air or settle on your surfaces. Unlike sprays, bombs, or professional treatments, Harmony Roots introduces nothing into your home environment — just waves that are harmless to humans and animals but intolerable to pests.

Pest controllers charge hundreds of pounds per visit, use industrial chemicals, and — because they're treating the current infestation rather than preventing the next one — often need to return. Harmony Roots costs a fraction of a single call-out, runs continuously without any maintenance, and keeps working long after the infestation has cleared to prevent new pests from settling. One purchase. No repeat fees. No chemicals in your home.