3 heat pump installer listings have a business address in Ayr, out of 11 across Ayrshire. The Boiler Upgrade Scheme doesn't apply in Scotland, so funding here runs through Home Energy Scotland instead. Air source systems are listed for these firms. Ask each firm what it currently installs and whether it serves Ayr.
Grants in Scotland
Scotland has its own grant and loan scheme, not the Boiler Upgrade Scheme.
All 11 installers in Ayrshire · All counties · Home Energy Scotland guide