Why is Wi‑Fi poor in a new-build home?
Foil-backed insulation, underfloor heating, dense plasterboard and metal can attenuate radio signals. Multiple well-placed wired nodes may be needed.
Materials; floor plan; room RSSI; backhaul.
Onsite survey.
Show the technical detail
On a managed Wi-Fi plan
Offer measured optimisation/site survey.
On another provider's router
Provider pods can help but placement and backhaul remain critical.
What to be careful of
This is a likely cause, not a conclusion without measurements.
Where this comes from: Official · see the original source ↗ · Draft—technical review · checked 17 August 2026