The National Lottery Heritage Fund is one of the biggest sources of capital for heritage buildings in the UK, and many churches have used it successfully for major projects. However, it funds heritage outcomes and community engagement, not building maintenance. A bid that amounts to "we need a new boiler" will not succeed. A bid that says "we want to make our Grade I listed church warm enough to welcome the community year-round, and here is the activity plan to go with it" stands a much better chance.
For church heating projects, the Heritage Fund works best when the heating work is part of a larger scheme: a reordering, a new community space, or a conservation project where improved environmental control protects the fabric. The fund expects applicants to demonstrate how the project will involve people, widen access, and leave a lasting benefit beyond the building work itself.
The process is thorough. For grants over £250,000, expect a two-stage application with a development phase in between. Smaller grants (£10,000 to £250,000) are simpler but still require a clear heritage and community case. Professional advice at the application stage is strongly recommended.