Find realistic costs for your home

Enter your postcode and we’ll look up the energy record for your home. You confirm or update the details, then you get an estimated installed cost range — not a fixed price.

Free · Independent advice · Devon & Cornwall · Installers only if you ask

What are you planning?

Your free heat-pump plan shows

Estimated installed cost range · likely system size · what a survey still checks

Built from your home

  1. 01 Energy record + your updates
  2. 02 Heat needed
  3. 03 System size + radiators
  4. 04 Installed cost range

Early guide — not a fixed price. A survey confirms the design; installer quotes confirm the price.

Results first. No account, email or phone needed to see your plan. Installer introductions are optional.

We found energy records

Choose your home to load the latest available EPC listed for that address.

More than the EPC rating

HeatWise doesn’t calculate from the A–G rating alone. We load the useful home details behind the certificate, then show them to you before anything is calculated.

Nothing has been calculated yet. Next, you’ll see what the EPC says about the home and can update anything that is missing or has changed.

Public energy record found

Project details for your plan

We’ve carried forward your home’s size, fabric and current heating from its energy record and your checks. We only need the project details below to refine system paths and figures.

Still no system size or installed-cost range on this screen — those appear after you build the Passport.

Preparing your assessment

Planning estimate only · Not an MCS certificate · Engine 4.6