Your EPC rating affects buyer confidence, mortgage options, and running costs. The fastest wins? Fixing heat loss at the roof and floors, improving airflow, and avoiding insulation that fails surveys.
At Carbon Zero Solutions Ltd, we carry out free, no-obligation surveys and recommend upgrades that lift EPC scores quickly and compliantly.
👉 Book your free EPC improvement survey
1) Upgrade Loft Insulation (Biggest, Cheapest Win)
Many UK homes still have under-depth loft insulation. Bringing it up to modern levels massively reduces heat loss and boosts EPC points.
- Target modern depths (typically 270–300 mm for mineral wool).
- Fix gaps/compression and insulate around hatches & services.
See our loft insulation services and product overview: Knauf mineral wool.
2) Stop Condensation & Moisture (Protects Your Score)
Insulation only performs if the loft can breathe. Improving airflow prevents damp, mould and survey flags.
Simple fix: add felt lap vents for better roof ventilation without losing warmth.
3) Insulate Floors & Kill Draughts
Suspended timber floors leak heat and comfort. Between-joist systems such as Actis Hybris deliver airtight, neat results and EPC gains.
Learn more about Actis Hybris insulation for floors and warm roof applications.
4) Remove Survey-Fail Materials (e.g., Spray Foam)
Spray foam in roofs is now widely flagged by surveyors and lenders. If present, it can stall sales, remortgages or equity release until removed.
We provide safe, compliant spray foam removal and re-insulation with breathable materials that lenders accept.
5) Document Upgrades for Your Assessor
- Keep invoices, product specs, and installation notes.
- Photograph before/after and insulation depths.
- Share your paperwork with the EPC assessor to maximise points.
Next Steps
Ready to lift your EPC rating with sensible, survey-friendly upgrades?
👉 Request your free EPC survey
Want the bigger picture? Read our Complete Guide to Home Insulation in the UK (2025 Edition) for targets and options across the whole house.
Click the link above to read more.
