Refurb
Refurb

EPC Upgrade Calculator

Calculate costs to improve your EPC rating and meet MEES regulations.

AI-Powered
Free to use
Step 1 of 5EPC Rating

What's your EPC rating?

Select your current and target EPC ratings

SAP Score: 46 points

Minimum SAP needed: 69 points

MEES Regulations

Rental properties must have minimum EPC E (current) or C (proposed 2028). Non-compliance: up to £30,000 fine.

About the EPC Upgrade Calculator

What it does and how it helps you

The EPC Upgrade Calculator helps UK property owners and landlords calculate the cost to improve their Energy Performance Certificate (EPC) rating. Plan upgrades to meet MEES regulations, reduce energy bills, and increase property value.

14 different energy efficiency measures with UK costs
SAP point improvements for each upgrade measure
Grant funding calculator (ECO4, BUS, local schemes)
Payback period analysis based on energy bill savings
MEES regulation compliance checker
CO2 reduction estimates

How It Works

Understanding the calculation method

1. Select your current EPC band (A-G) based on your existing certificate 2. Choose the target rating you need to achieve (typically C for future MEES compliance) 3. Pick from 14 different energy efficiency measures across insulation, glazing, heating, and renewables 4. Add any grant funding available from ECO4, BUS, or local authority schemes 5. Enter your email to receive a detailed cost breakdown and recommendations 6. View your projected new EPC rating, costs, energy savings, and payback period

When to use this calculator

Use this calculator when planning EPC upgrades for rental properties (MEES compliance requires minimum EPC E, with EPC C proposed for 2028), preparing a property for sale, or planning energy efficiency improvements. Essential for landlords facing MEES regulations or property investors buying below-EPC-C properties.

Frequently Asked Questions

Common questions about this calculator

Under current MEES regulations, rental properties must have a minimum EPC rating of E. The government has proposed raising this to EPC C for new tenancies by 2028, though the timeline is under review. Landlords who don't comply can face fines of up to £30,000.
The most cost-effective measures are typically: LED lighting (£200-500, +3 SAP), draught proofing (£150-400, +2 SAP), loft insulation (£300-600, +8 SAP), and cavity wall insulation (£800-1,500, +10 SAP). Always start with insulation before upgrading heating.
Yes, several schemes are available: ECO4 provides free or subsidised insulation for eligible households, the Boiler Upgrade Scheme offers £7,500 towards air source heat pumps, and many local authorities run their own grant schemes.
For a typical 3-bed semi, upgrading from E to C costs between £5,000-£15,000 depending on required measures. This usually includes loft and cavity wall insulation, a new condensing boiler, and smart heating controls.
SAP (Standard Assessment Procedure) is the UK government's energy rating calculation. It produces a score from 1-100: A (92+), B (81-91), C (69-80), D (55-68), E (39-54), F (21-38), G (1-20). You need approximately 69 SAP points for EPC C.