Every congregation in the Presbytery of Hamilton is contactable via e-mail; some also have their own websites. Other contact information is available in the Presbytery Handbook. Many of the congregations have their e-mail forwarded to an office bearer (sometimes the minister) who is themselves on-line. This person will pass on any messages to the relevant person within the congregation. Other congregations do not yet have access to e-mail. Messages sent to these congregations are picked up by the Presbytery Office, and forwarded by phone or conventional mail to the congregation in question.

Some congregations within the Presbytery have made available the times of their worship services.

Congregations which are part of a linkage have more than one address, one for each part of the linkage. So, for instance, "Airdrie: New Monkland linked with Greengairs" has two addresses, airdrie-newmonkland and greengairs. All addresses are @presbyteryofhamilton.co.uk, so the full address for another of the Airdrie churches, "Flowerhill", would be: airdrie-flowerhill@presbyteryofhamilton.co.uk.