EPC Assessment London: What Do You Need to Prepare?
If you have an EPC assessment coming up, you may be wondering what you need to prepare before the assessor arrives. The process is usually straightforward, but making sure your property is accessible and having information about recent improvements available can help everything run smoothly.
An Energy Performance Certificate (EPC) shows how energy efficient a property is on a scale from A to G. An EPC is commonly required when selling or renting a property in England and is generally valid for 10 years. GOV.UK explains the rules for Energy Performance Certificates.
Whether you are a homeowner, landlord, seller or estate agent, knowing what happens during an EPC assessment in London can help you prepare properly and avoid unnecessary delays.
What Is an EPC Assessment?
An EPC assessment is an inspection carried out by an accredited energy assessor to determine the energy efficiency of a property.
During the assessment, the assessor collects information about features such as:
Property size and layout
Walls, roof and floor construction
Loft and wall insulation
Windows and glazing
Heating systems
Hot water systems
Fixed lighting
Renewable energy systems
Heating controls and thermostats
The information collected is used to calculate the property’s energy efficiency rating.
The completed EPC gives the property a rating from A to G, with A representing the highest energy efficiency.
If you need an EPC assessment in London, make sure you use an accredited energy assessor. GOV.UK provides guidance on EPCs and accredited assessors.
What Do You Need Before an EPC Assessment?
You generally do not need a large amount of paperwork before an EPC assessment. However, preparing the property and providing information about recent improvements can make the inspection easier.
1. Make Sure the Assessor Can Access the Property
Access is one of the most important things to arrange before an EPC inspection.
The assessor needs to inspect relevant parts of the property, including rooms, heating equipment, windows and other features that can affect the energy rating.
If the property is rented, make sure the tenant knows about the appointment.
For landlords and estate agents, arranging access in advance can help avoid missed appointments and unnecessary delays.
2. Provide Information About Recent Improvements
If you have recently made energy efficiency improvements, tell the assessor.
Useful information can include:
Loft insulation
Cavity wall insulation
Solid wall insulation
New windows
Boiler replacement
Heating upgrades
Solar panels
Heat pumps
Low-energy lighting
Heating controls
Where available, keep relevant installation documents or certificates nearby.
This can be particularly useful when improvements are not immediately visible.
3. Make the Boiler and Heating System Accessible
Heating is an important part of an EPC assessment.
Make sure the assessor can access the boiler, heating controls and hot water system.
If the boiler is inside a cupboard, try to make sure the area around it is accessible.
The assessor may need to identify the type and characteristics of the heating system.
4. Make All Rooms Accessible
Before the appointment, make sure the assessor can access the rooms within the property.
This normally includes:
Bedrooms
Kitchen
Bathroom
Living rooms
Hallways
Utility areas
Relevant heating equipment
If an area cannot be accessed, the assessor may not be able to collect all the information required for the assessment.
Do You Need Your Previous EPC?
You do not necessarily need your previous EPC, but having a copy available can be useful.
You can also check whether your property already has an EPC using the official GOV.UK Energy Performance Certificate service.
An EPC is generally valid for 10 years. If your certificate has expired and you are selling or renting the property, you may need to arrange a new assessment.
If you have recently improved the property’s insulation, heating, windows or renewable energy systems, getting a new EPC can also help show the property’s current energy performance.
What Does an EPC Assessor Check?
During an EPC assessment, the assessor looks at different characteristics of the property that influence its calculated energy performance.
Insulation
The assessor may look for evidence of insulation in areas such as:
Loft spaces
Walls
Floors
Roofs
Good insulation can reduce heat loss and may contribute to improved energy efficiency.
Windows and Glazing
Windows and glazing are also considered during an EPC inspection.
The assessor may identify whether the property has single, double or triple glazing and record other relevant characteristics.
Heating System
The heating system can have a significant effect on the EPC rating.
The assessor may record information about:
Boiler
Heat source
Heating controls
Hot water system
Heating distribution
If you recently replaced the boiler or heating system, make sure the assessor knows.
Lighting
Fixed lighting is another part of the assessment.
Modern low-energy lighting can be more efficient than older lighting systems and may contribute to the property’s calculated energy performance.
Renewable Energy
If the property has solar panels, a heat pump or another renewable energy system, tell your assessor.
Renewable technologies can affect the property’s energy performance calculation.
How Long Does an EPC Assessment Take?
The time required for an EPC assessment depends on the size and type of property.
A typical domestic property can often be assessed relatively quickly, while larger properties or homes with unusual layouts and more complex systems may take longer.
It is better to allow enough time for the assessor to inspect the property properly rather than rushing the appointment.
If you need an EPC quickly, you can also explore EPC Rate London’s fast EPC service.
Do You Need to Improve Your Property Before an EPC Assessment?
No. You do not normally need to complete improvements before arranging an EPC assessment.
In fact, getting the assessment first can help you understand which improvements may be worthwhile.
Your EPC report can include recommendations covering areas such as:
Insulation
Heating
Windows
Lighting
Heating controls
Renewable energy
You can read the official GOV.UK guidance on domestic energy efficiency requirements for more information.
For landlords planning future improvements, understanding the property’s current EPC rating can be especially useful.
What Happens After an EPC Assessment?
After the inspection, the assessor uses the information collected during the visit to produce the EPC.
The certificate includes:
Energy efficiency rating
Environmental impact information
Estimated energy information
Recommendations for improvements
The certificate is then lodged on the official EPC register.
If you are selling or renting your property, having your EPC arranged early can help avoid delays during the marketing process.
If you are ready to arrange yours, book an EPC assessment with EPC Rate London.
EPC Assessment for London Landlords
If you are a landlord, your property’s EPC rating is particularly important.
Under the current Minimum Energy Efficiency Standards rules, relevant domestic private rented properties generally cannot be let where the EPC rating is F or G unless a valid exemption applies.
GOV.UK’s domestic private rented property guidance provides the current government guidance for landlords.
It is a good idea to check your property’s EPC before a tenancy begins and understand any recommendations included in the certificate.
If you are a London landlord, you can also explore our EPC services for landlords and arrange an assessment for your property.
EPC Assessment When Selling a Property
If you are selling your home, arranging an EPC early can help prevent delays when preparing your property for marketing.
Where an EPC is required, it should be ordered before the property is marketed.
You can check the official GOV.UK guidance on EPCs when selling a property for the latest requirements.
An EPC can also form part of your wider property marketing package.
If you are preparing a property for sale, you may also want to consider professional property photography and property floor plans to present the property more effectively.
How to Prepare for an EPC Assessment
Use this quick checklist before your assessor arrives:
Make sure someone can provide access.
Make all rooms accessible.
Make the boiler and heating controls accessible.
Keep information about recent improvements available.
Tell the assessor about insulation upgrades.
Mention new windows or glazing.
Provide details of heating upgrades.
Tell the assessor about solar panels or heat pumps.
Have your previous EPC available if you have one.
Make sure tenants know about the appointment.
Allow enough time for the assessment.
A little preparation can make your EPC inspection much easier.
How Much Does an EPC Assessment Cost in London?
The cost of an EPC assessment depends on the size and type of property.
EPC Rate London provides domestic EPC services across London, with pricing based on the property type and size.
You can check the latest EPC prices in London before booking.
If you have a larger or unusual property, contacting the team directly can help you confirm the appropriate price.
How to Book an EPC Assessment in London
If you need an EPC assessment in London, arranging it early can help avoid unnecessary delays when selling or renting a property.
EPC Rate London provides EPC services for homeowners, landlords, estate agents and property professionals across London.
The service covers London areas including Croydon, Mitcham, Clapham, Streatham, Tooting, Sutton and surrounding locations.
If you need your EPC quickly, you can book your EPC online or contact EPC Rate London with your property details.
Frequently Asked Questions About EPC Assessments
What do I need for an EPC assessment?
You mainly need to provide access to the property and make relevant rooms, heating systems and other areas accessible. Information about recent improvements can also be useful.
How long does an EPC assessment take?
The time depends on the property’s size, layout and complexity. A standard domestic property can generally be assessed relatively quickly.
Do I need to improve my property before an EPC assessment?
No. You do not normally need to make improvements before the assessment. The EPC can provide recommendations for potential improvements after the assessment.
How long is an EPC valid?
An EPC is generally valid for 10 years, provided the certificate remains applicable to the property.
Can landlords arrange an EPC assessment?
Yes. Landlords can arrange an EPC assessment to establish the property’s current energy efficiency rating and help meet applicable legal requirements.
Can I get an EPC quickly in London?
Yes. Fast EPC appointments may be available depending on assessor availability and location. Contact EPC Rate London to discuss your requirements.
Final Thoughts
Preparing for an EPC assessment does not need to be complicated.
Make sure the assessor can access the property, keep information about recent improvements available and ensure heating systems and relevant rooms can be inspected.
If you are selling, letting or managing a property in London, arranging your EPC early can help you avoid unnecessary delays.
Need an EPC assessment in London? Book your EPC with EPC Rate London today.