If you’ve booked an Energy Performance Certificate (EPC) assessment, you may be wondering what exactly happens during the visit. The process can feel mysterious to many homeowners and landlords — but understanding it can help you prepare properly, avoid mistakes, and even secure a higher rating.

Below is a clear breakdown of what EPC assessors actually check, how long it takes, and how you can get the most accurate score.

To book a professional EPC assessment, visit:
👉 Book Your EPC Assessment

1. Arrival & Identity Verification

When your assessor arrives, they will:

  • Confirm your booking details

  • Verify property access

  • Explain the process

  • Ask about any relevant documents (e.g., loft insulation certificates, glazing details, boiler manuals)

If you have any upgrade proofs, share them — this helps improve accuracy.

Learn more about our team here:
👉 About Us – EPCrate

2. Internal & External Survey of the Property

The assessor performs a structured inspection. This includes:

External checks:

  • Construction type (brick, timber frame, cavity wall, etc.)

  • Roof type and insulation potential

  • Window glazing type

  • Building age and extensions

Internal checks:

  • Heating system type and efficiency

  • Hot water system

  • Radiators and heating controls

  • Loft insulation depth

  • Floor construction

  • Lighting type (LED, CFL, incandescent)

This stage is detailed but non-invasive — no drilling, no damage.

For service details:
👉 EPC Services – EPC Assessors London

3. Measurements & Evidence Collection

During the visit, assessors take:

  • Room measurements

  • Photos (for evidence only — not published)

  • Loft insulation photos

  • Boiler labels

  • Window type documentation (if available)

These photos are mandatory evidence for compliance and auditing.

4. Data Entry Into Government-Approved EPC Software

Once complete, the assessor inputs all collected information into RdSAP software, which uses:

  • Building age

  • Thermal performance

  • Energy systems

  • Insulation levels

The software calculates:

  • Your EPC rating

  • Energy costs

  • Recommended improvements

You will receive the certificate electronically within 24–48 hours.

5. Recommendations & Post-Assessment Support

Expect improvement suggestions such as:

  • Upgrading insulation

  • Switching to efficient lighting

  • Improving heating controls

  • Boiler replacement options

Some upgrades can increase your score instantly, especially where assessors can verify improvements with documentation.

If you have questions after receiving your report, contact us anytime:
👉 Contact EPCrate

How to Prepare for Your EPC Visit: Quick Checklist

To ensure the best possible rating:

  • Provide access to the loft

  • Keep boiler and cylinder areas accessible

  • Prepare any documents (EICR, insulation certificates, glazing receipts)

  • Ensure all rooms are accessible

  • Replace old bulbs with LEDs if possible

Simple steps can make measurable improvements.

Book Your EPC Today

A smooth, accurate EPC assessment starts with a trusted assessor.

Book your appointment here:
👉 EPC Booking – EPCrate

Check pricing before you book:
👉 EPC Pricing

Email :info@epcrate.co.uk

Phone:020 34884142