On Construction EPC in Caerphilly
The short answer
An On Construction EPC (Energy Performance Certificate) is legally required for all new build or converted dwellings in the UK. It rates a property's energy efficiency and carbon emissions upon completion.
- Price from
- £100.00
- Time on site
- None (desktop assessment)
What you get
You receive a legally compliant On Construction Energy Performance Certificate (EPC) for your new or converted property.
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When do you need a On Construction EPC?
You need this as soon as your building work is finished. The law requires it for all new builds and conversions.
- Getting final sign off from Building Control.
- Putting a new home on the market.
- Starting a new tenancy for renters.
- Converting offices into residential homes.
- Splitting one house into several new flats.
- Proof for social housing sustainability targets.
What happens on the day
An assessor works remotely using your building data rather than visiting in person. They use your design plans to check the energy efficiency.
- Provide the final SAP calculation documents.
- Send over the architectural drawings and floorplans.
- Give proof of the insulation and glazing used.
- Share details of the boiler or heat pump.
- Include certificates for solar panels or green tech.
- The assessor lodges the rating on the official register.
How to prepare
- Find your final SAP calculation documents
- Collect all architectural and site drawings
- Gather invoices for the insulation used
- Locate the air pressure test results
- Get technical sheets for the heating system
- Collect MCS certificates for solar panels
- Check all window and door specifications
- Confirm the final address with the council
How to improve your result
- Install high quality loft and wall insulation
- Choose triple glazing over standard double glazing
- Use a highly efficient heat pump system
- Add solar panels to the roof space
- Install low energy LED lighting throughout
- Ensure the building is properly airtight
Why it is useful day to day
A good rating makes your new home much cheaper to run. It tells you exactly how much energy the property should use.
- Lowers your monthly gas and electricity bills.
- Keeps the property at a comfortable temperature.
- Increases the final resale value of the home.
- Reduces the carbon footprint of the building.
- Helps you qualify for better mortgage rates.
Why we ask these questions
This process checks that your new home meets modern energy rules. It ensures the building matches the original eco friendly designs.
- It confirms the home is warm and efficient.
- The rating is based on exact building materials.
- It helps buyers compare different new build homes.
- Lenders often need it to offer green mortgages.
- It proves the builder followed the energy plans.
- The report stays valid for ten whole years.