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Fast. Reliable. Affordable.

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ENERGY PERFORMANCE CERTIFICATES

EPC Rating Explained

An Energy Performance Certificate (EPC) rating measures the energy efficiency of a property on a scale from A to G. Understand what your rating means and how to improve it.

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LANDLORD EPC REQUIREMENTS

What Is an EPC Rating?

An EPC rating shows the energy efficiency of a property on a scale from A to G, where A represents the highest level of energy efficiency and G the lowest.

This rating helps homeowners, landlords, buyers, and tenants understand a property’s energy performance, running costs, and environmental impact. Minimum energy efficiency requirements apply to certain privately rented properties, so landlords should check current guidelines.

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The EPC Rating Scale (A to G)

OUR SERVICES

Energy Performance Certificate ratings range from highly efficient homes down to the lowest energy performers:

A : Highly energy-efficient property

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B : Good energy efficiency

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C : Reasonably energy-efficient property

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D : Moderate energy efficiency

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E : Lower energy efficiency

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F : Poor energy efficiency

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G : Lowest level of energy efficiency

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How Can You Improve Your EPC Rating?

An EPC assessment includes tailored recommendations to help increase your property’s rating and reduce energy bills.

  • Insulation: Roof, wall, and floor upgrades.

  • Heating: Boiler upgrades & smart controls.

  • ​Efficiency: LED lighting & double glazing.

Location

Postcode checked first

Property type

House, flat, bungalow or other

Assessor availability

Earliest appointment confirmed

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How Is an EPC Rating Calculated?

An accredited energy assessor visits your property and collects data on key features to determine the overall score:

Property construction

Insulation

Windows

Heating system

Hot water

Lighting

Renewable technologies

Other relevant energy features

Trusted EPC provider

Verified Certifications Provided

Our assessors are members of the relevant trade accreditation scheme.

Elmhurst Accredited EPC Assessor
Trusted EPC provider
Accredited residential EPC Assessor
Areas We Cover

Instant EPC provides domestic and commercial EPC assessments across London and surrounding regions:

London

Luton

Hertfordshire

Watford

St Albans

Surrounding areas

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Why choose Instant EPC

Domestic EPC

Accredited Assessors

Qualified energy assessors for every inspection.

EPC for my Property

Same-Day Service

Fast appointments available in many areas.

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Landlord & Commercial

Services tailored for rental & business properties.

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Flexible Booking

Easy appointment scheduling around your availability.

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Transparent Pricing

Fixed-fee service with no hidden costs.

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No Upfront Payment

Pay upon completion of assessment.

Frequently Asked Questions

  • Minimum energy efficiency standards apply to private rental properties. Check current legal requirements to ensure your rental property remains compliant.

  • An Energy Performance Certificate is valid for 10 years from the date of issue.

  • Common fixes include upgrading to LED lighting, adding loft insulation, replacing old boilers, or installing heating controls.

  • Yes, commercial premises being sold or let also require a Commercial EPC.

Need a New EPC?

Contact Instant EPC today to schedule your assessment and receive your certificate quickly.

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