This document provides information about Energy Performance Certificates (EPCs) for domestic properties in the UK. It explains that an EPC rates a property's energy efficiency on a scale of A to G. It is required when selling or renting a property. The assessment typically takes 2 working days and the cost depends on the property size and complexity. Ways to improve a home's rating include better construction materials, insulation, air tightness, and heating/cooling systems. The energy assessor requires details about the property's layout, construction, and mechanical systems.

1. Domestic EPCs
What is an EPC?
AnEnergyPerformanceCertificate(EPC)ratestheenergyperformanceofabuildingonascaleofA
G.Theenergyratingreflectstheactualenergyperformanceofthebuildingrelativetoabenchmark.
Theenergyratingcanbeusedtocomparetheenergyperformanceofbuildingswhenmaking
investmentdecisions.
Do I need an EPC?
IfyouareplanningtosellorletadwellingthenyouwillneedtoobtainanEPCforthatproperty.
How long does an EPC assessment take?
WeaimtoissueeachEPCwithintwoworkingdaysfromthepointofengagement.
How much does an EPC cost?
Westrivetoensureeachquoteisthemostcompetitiveinthemarket,offeringyourealvaluefora
qualityservice.FactorsthatwillaffectthecostofaSAPassessmentincludethesizeandcomplexity
ofthedwelling.Callnowforaninstantquotefromoneofourexperienceddomesticenergy
assessors.

2. How can I improve the energy efficiency of my dwelling?
Factorsthataffecttheenergyefficiencyofadwellinginclude:
• Thematerialsusedfortheconstructionofthebuildingenvelope(materialswithalowerUvaluewill
resultinanimprovedrating);
• Thelevelofthermalinsulationincludedwithinthebuildingenvelope;
• Theairtightnessofthebuildingandthecharacteristicsofitsventilationequipment;
• Theefficiencyandcontrolsoftheheatingsystem(s);
• Solargainsthroughopeningswithinthebuildingenvelope;
• Thefuelusedtoprovidespaceandwaterheating,ventilationandlighting;and
• Theinclusionofloworzerocarbontechnologies,suchasphotovoltaics,groundsourceheat
pumps,andcombinedheatandpower(CHP)
What do I need to provide to the domestic energy assessor?
• Floorplans,includingbuildingelevationsandsections;
• Detailsofthebuildingslocationandorientation;
• Specificationfortheconstructionofallfloors,roofsandexternalwalls;
• Specificationforallwindowsanddoorswithinthebuildingsexternalenvelope,includingframe
material,widthofgap(ifmultipleglazing)andemissivityofglass;
• Detailsofallheating,ventilation,airconditioningandlightingwithinthebuilding;
• Hotwatersystemspecification,includingcalorifiersize,detailsofanyinsulationtothecylinderand
pipes,andassociatedcontrols;
• Fulldetailsofanyfixedsecondaryheating,cooling,andhotwatersystems;and
• Detailsofanyloworzerocarbontechnology,suchassolarhotwater,photovoltaics,groundsource
heatpumps,orwindturbines,forexample.