The typical permanent fee charged by UK recruitment consultants for filling an HVAC engineer position can vary, but it generally ranges from 15% to 25% of the candidate’s annual salary. For a position offering £48,000, this would mean a fee of approximately £7,200 to £12,000. Some consultants may also have fixed fees or tiered structures depending on the level of the role or the specific requirements of the assignment. It’s always a good idea to discuss fees upfront to ensure clarity and alignment with your expectations.