Editorial policy

Independence

This site is editorially independent. It is not affiliated with, funded by or endorsed by the Department for Energy Security and Net Zero (DESNZ), Ofgem, the Heat Network Zoning Authority, any zone coordination body, any zone developer, or any trade body or industry association. Nobody outside the site reviews or approves what we publish.

How we check facts

Every regulatory fact we show (dates, thresholds, time periods, penalties, roles and statuses) comes from a single list that records the primary source and the date we last checked it. Our sources are legislation.gov.uk, GOV.UK, Ofgem, Citizens Advice and the Energy Ombudsman. Where something is government policy rather than law, we mark it Pending and say so in the text. We review every fact at least every 90 days, and the footer of each page shows when the facts were last verified.

We never state that zoning regulations are in force, or that a zone has been designated, without a primary source.

How listings work

• All listings are currently free.
• We write each firm's summary ourselves from public information: their own website, government publications and reputable trade press.
• Firms can correct factual errors in their listing. They can't write or approve our summary.
• Listings marked Unconfirmed haven't been checked by the firm yet. We mark a listing confirmed once the firm has reviewed the facts.
• Default listing order is alphabetical. Filters only reflect the information in each listing.

If we introduce paid placements

If we ever take money from firms, we'll follow these rules:

• Paid or featured listings will carry a visible “Featured” or “Sponsored” label.
• Payment will never change our independent summary, the facts we show, or what our guides say.
• Guides and tools will never recommend a specific firm because it has paid.
• If we charge for introductions, we'll say so on the introduction form before you send it.
• We'll update this page and our about page before any change takes effect.

Corrections

If you spot an error, please report it with a link to the source if you can. We aim to review reports within five working days. Significant corrections to guides are noted on the page.

Not advice

Our guides and tools explain the rules in general terms. They aren't legal, financial or engineering advice for your building. For decisions that matter, speak to a qualified adviser.