About us

Sterdy Communications (previously Interoffice Telephones Ltd) specialise in door entrance systems for both commercial and residential properties ranging from simple domestic and office audio and video systems to complex bespoke access systems.

Sterdy Communicatons Ltd has been trading and meeting customers needs since 1947 providing keenly competitive pricing with uncomprimised quality.

We serve all areas within the M25 in particular London both Central and Outer.

Sterdy Communicatons only use fully qualified and experienced door entry technicians.

All of the systems we install use high quality industry standard products, as such you are given an assured after sales service guarantee of 1 year.

We provide FREE no obligation quotations for new systems, upgrades or just cosmetic renovations as well as offer maintenance contracts based on a site visit to third party systems.